Key enzyme in the regulation of glycerol uptake and metabolism (By similarity). Increases the binding of activated glucocorticoid-receptor to nuclei in the presence of ATP.
This subgroup corresponds to a group of metazoan glycerol kinases (GKs), coded by X chromosome-linked GK genes, and glycerol kinase (GK)-like proteins, coded by autosomal testis-specific GK-like genes (GK-like genes, GK1 and GK3). Sequence comparison shows that metazoan GKs and GK-like proteins in this family are closely related to the bacterial GKs, which catalyze the Mg-ATP dependent phosphorylation of glycerol to yield glycerol 3-phosphate (G3P). The metazoan GKs do have GK enzymatic activity. However, the GK-like metazoan proteins do not exhibit GK activity and their biological functions are not yet clear. Some of them lack important functional residues involved in the binding of ADP and Mg2+, which may result in the loss of GK catalytic function. Others that have conserved catalytic residues have lost their GK activity as well; the reason remains unclear. It has been suggested the conserved catalytic residues might facilitate them performing a distinct function. GKs belong to the FGGY family of carbohydrate kinases, the monomers of which contain two large domains, which are separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 504
>gnl|CDD|198347 cd07769, FGGY_GK, Glycerol kinases; a subfamily of the FGGY family of carbohydrate kinases
Score = 168 bits (429), Expect = 2e-51
Identities = 63/117 (53%), Positives = 79/117 (67%), Gaps = 6/117 (5%)
Query: 6 ISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNTG 65
I PQ GW E DP EI V ++ A++KL +S + I +GITNQRETTV WD TG
Sbjct: 34 IYPQPGWVEHDPEEIWANVVQCIEEALKKL---RISPEQIKAIGITNQRETTVAWDKETG 90
Query: 66 EPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLIQNV 122
+PLYNAIVW DTR IV+++ A D + DY + GLP+SPYFSALKL WL++NV
Sbjct: 91 KPLYNAIVWQDTRTSEIVEELKA---DGNADYFREKTGLPISPYFSALKLRWLLENV 144
This subfamily includes glycerol kinases (GK; EC 2.7.1.30) and glycerol kinase-like proteins from all three kingdoms of living organisms. Glycerol is an important intermediate of energy metabolism and it plays fundamental roles in several vital physiological processes. GKs are involved in the entry of external glycerol into cellular metabolism. They catalyze the rate-limiting step in glycerol metabolism by transferring a phosphate from ATP to glycerol thus producing glycerol 3-phosphate (G3P) in the cytoplasm. Human GK deficiency, called hyperglycerolemia, is an X-linked recessive trait associated with psychomotor retardation, osteoporosis, spasticity, esotropia, and bone fractures. Under different conditions, GKs from different species may exist in different oligomeric states. The monomer of GKs is composed of two large domains separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. The high affinity ATP binding site of GKs is created only by a substrate-induced conformational change. Based on sequence similarity, some GK-like proteins from metazoa, which have lost their GK enzymatic activity, are also included in this CD. Members in this subfamily belong to the FGGY family of carbohydrate kinases. Length = 484
Score = 152 bits (387), Expect = 2e-45
Identities = 59/122 (48%), Positives = 82/122 (67%), Gaps = 1/122 (0%)
Query: 1 MDISTISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVW 60
++ S I P GW E DP EI+ +V + A++ L G S+ D+ +GITNQRETTVVW
Sbjct: 31 IEFSQIYPHPGWHEHDPEEIVSSVVQCIASALKSLETSGFSKYDVKVIGITNQRETTVVW 90
Query: 61 DLNTGEPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLIQ 120
D TG+PLYNAIVW+DTR + V ++ +K + L+ ICGLP+S YFS++KL W++
Sbjct: 91 DRETGKPLYNAIVWNDTRTTSTVRELESKLKKG-AEALREICGLPLSTYFSSVKLRWMLD 149
Query: 121 NV 122
NV
Sbjct: 150 NV 151
This subgroup corresponds to a small group of fungal glycerol kinases (GK), including Saccharomyces cerevisiae Gut1p/YHL032Cp, which phosphorylates glycerol to glycerol-3-phosphate in the cytosol. Glycerol utilization has been considered as the sole source of carbon and energy in S. cerevisiae, and is mediated by glycerol kinase and glycerol 3-phosphate dehydrogenase, which is encoded by the GUT2 gene. Members in this family show high similarity to their prokaryotic and eukaryotic homologs. GKs belong to the FGGY family of carbohydrate kinases, the monomers of which contain two large domains, which are separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 496
Score = 139 bits (352), Expect = 3e-40
Identities = 51/124 (41%), Positives = 73/124 (58%), Gaps = 12/124 (9%)
Query: 2 DISTISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWD 61
+ + I P+ GW E DP EI ++ A+ K G+ DI +GITNQRETTVVWD
Sbjct: 30 EFTQIYPKPGWVEHDPEEIWESQLAVAREALAK---AGIRASDIAAIGITNQRETTVVWD 86
Query: 62 LNTGEPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPIC---GLPVSPYFSALKLSWL 118
TG+P+YNAIVW D R +I +++ + + + + I GL + PYFSA K+ W+
Sbjct: 87 RETGKPVYNAIVWQDRRTADICEEL------KAEGHEEMIREKTGLVLDPYFSATKIRWI 140
Query: 119 IQNV 122
+ NV
Sbjct: 141 LDNV 144
This subgroup is composed of mostly bacterial and archaeal glycerol kinases (GK), including the well characterized proteins from Escherichia coli (EcGK), Thermococcus kodakaraensis (TkGK), and Enterococcus casseliflavus (EnGK). GKs contain two large domains separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. The high affinity ATP binding site of EcGK is created only by a substrate-induced conformational change, which is initiated by protein-protein interactions through complex formation with enzyme IIAGlc (also known as IIIGlc), the glucose-specific phosphocarrier protein of the phosphotransferase system (PTS). EcGK exists in a dimer-tetramer equilibrium. IIAGlc binds to both EcGK dimer and tetramer, and inhibits the uptake and subsequent metabolism of glycerol and maltose. Another well-known allosteric regulator of EcGK is fructose 1,6-bisphosphate (FBP), which binds to the EcGK tetramer and plays an essential role in the stabilization of the inactive tetrameric form. EcGK requires Mg2+ for its enzymatic activity. Members in this subgroup belong to the FGGY family of carbohydrate kinases. Length = 486
Score = 133 bits (336), Expect = 6e-38
Identities = 54/117 (46%), Positives = 73/117 (62%), Gaps = 6/117 (5%)
Query: 6 ISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNTG 65
I P+ GW E DP EI + + + A L+ GL+ +DI +GITNQRETTVVWD TG
Sbjct: 34 IFPRPGWVEHDPEEIWENTRRVISGA---LAKAGLTPEDIAAVGITNQRETTVVWDRATG 90
Query: 66 EPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLIQNV 122
P+YNAIVW DTR D I ++ A D+ + + GLP++ YFS K+ W++ NV
Sbjct: 91 RPVYNAIVWQDTRTDEICRELAA---DEGQQRFRARTGLPLATYFSGPKIRWILDNV 144
glycerol kinase-like proteins; belongs to the FGGY family of carbohydrate kinases. This subgroup corresponds to a small group of bacterial glycerol kinases (GK) with similarity to Cellulomonas sp. glycerol kinase (CsGK). CsGK might exist as a dimer. Its monomer is composed of two large domains separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. The regulation of the catalytic activity of this group has not yet been examined. Members in this subgroup belong to the FGGY family of carbohydrate kinases. Length = 495
>gnl|CDD|198368 cd07796, FGGY_NHO1_plant, Arabidopsis NHO1 and related proteins; belongs to the FGGY family of carbohydrate kinases
Score = 129 bits (326), Expect = 1e-36
Identities = 60/123 (48%), Positives = 83/123 (67%), Gaps = 2/123 (1%)
Query: 1 MDISTISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDD-IVTLGITNQRETTVV 59
++ + I PQ GW E DPMEIL+ V+ M+ A+ K A GL D + +GITNQRETTVV
Sbjct: 29 VEFTQIYPQAGWVEHDPMEILETVKKCMEGALAKAKAKGLDVLDGLKAIGITNQRETTVV 88
Query: 60 WDLNTGEPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLI 119
W +TG PLYNAIVW D R +I ++ + P+ + +++ CGLP+S YFSA KL WL+
Sbjct: 89 WSRSTGLPLYNAIVWMDARTSSICRRLEKELPEGGRHFVET-CGLPISTYFSATKLLWLM 147
Query: 120 QNV 122
++V
Sbjct: 148 EHV 150
This subgroup includes Arabidopsis NHO1 (also known as NONHOST1, or noh-host resistant 1) and other putative plant glycerol kinases, which share strong homology with glycerol kinases from bacteria, fungi, and animals. Nonhost resistance of plants refers to the phenomenon observed when all members of a plant species are typically resistant to a specific parasite. NHO1 is required for nonspecific resistance to nonhost Pseudomonas bacteria, it is also required for resistance to the fungal pathogen Botrytis cinerea. This subgroup belongs to the FGGY family of carbohydrate kinases, the monomers of which contain two large domains, which are separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 503
>gnl|CDD|198378 cd10427, FGGY_GK_1, Uncharacterized subgroup; belongs to the glycerol kinases subfamily of the FGGY family of carbohydrate kinases
This subgroup contains uncharacterized bacterial proteins belonging to the glycerol kinase subfamily of the FGGY family of carbohydrate kinases. The glycerol kinase subfamily includes glycerol kinases (GK; EC 2.7.1.30), and glycerol kinase-like proteins from all three kingdoms of living organisms. Glycerol is an important intermediate of energy metabolism and it plays fundamental roles in several vital physiological processes. GKs are involved in the entry of external glycerol into cellular metabolism. They catalyze the rate-limiting step in glycerol metabolism by transferring a phosphate from ATP to glycerol thus producing glycerol 3-phosphate (G3P) in the cytoplasm. Under different conditions, GKs from different species may exist in different oligomeric states. The monomer of GKs is composed of two large domains separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 487
>gnl|CDD|215880 pfam00370, FGGY_N, FGGY family of carbohydrate kinases, N-terminal domain
Score = 101 bits (253), Expect = 2e-26
Identities = 37/120 (30%), Positives = 57/120 (47%), Gaps = 9/120 (7%)
Query: 2 DISTISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWD 61
+ P+ GW EQDP EI QA+ + A + S I +G+++Q E ++ D
Sbjct: 30 EYEVSYPKPGWVEQDPEEIWQALCEVLREAAAQASGG-----QIAAIGVSSQGEGVILVD 84
Query: 62 LNTGEPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLIQN 121
N G PL AI+W D+R +++ + D + GL P FS KL WL ++
Sbjct: 85 AN-GRPLTPAILWQDSRTAEECERLEEQI---GADEIYERTGLRPHPMFSGPKLLWLKEH 140
This family is predominantly composed of glycerol kinase (GK) and similar carbohydrate kinases including rhamnulokinase (RhuK), xylulokinase (XK), gluconokinase (GntK), ribulokinase (RBK), and fuculokinase (FK). These enzymes catalyze the transfer of a phosphate group, usually from ATP, to their carbohydrate substrates. The monomer of FGGY proteins contains two large domains, which are separated by a deep cleft that forms the active site. One domain is primarily involved in sugar substrate binding, and the other is mainly responsible for ATP binding. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Substrate-induced conformational changes and a divalent cation may be required for the catalytic activity. Length = 435
>gnl|CDD|198363 cd07791, FGGY_GK2_bacteria, bacterial glycerol kinase 2-like proteins; belongs to the FGGY family of carbohydrate kinases
Score = 91.0 bits (226), Expect = 1e-22
Identities = 41/115 (35%), Positives = 57/115 (49%), Gaps = 8/115 (6%)
Query: 8 PQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNTGEP 67
PQ GW EQD I AVQ +AI A G+ ++ + I+NQRE+ V+WD TG P
Sbjct: 36 PQPGWVEQDAEAIWAAVQ----QAIADCLA-GVLAAEVAAIAISNQRESVVIWDRQTGAP 90
Query: 68 LYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLIQNV 122
L + W R + A+ + + GLP+ P FSA K+ WL+ V
Sbjct: 91 LGPVLSWQCRRTAAACAALRAE---GHEPMVAARTGLPIDPMFSASKMRWLLDRV 142
This subgroup corresponds to a group of putative bacterial glycerol kinases (GK), which may be coded by the GK-like gene, GK2. Sequence comparison shows members in this CD are homologs of Escherichia coli GK. They retain all functionally important residues, and may catalyze the Mg-ATP dependent phosphorylation of glycerol to yield glycerol 3-phosphate (G3P). GKs belong to the FGGY family of carbohydrate kinases, the monomers of which contain two large domains, which are separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 484
>gnl|CDD|198366 cd07794, FGGY_GK_like_proteobact, Proteobacterial glycerol kinase-like proteins; belongs to the FGGY family of carbohydrate kinases
Score = 89.5 bits (222), Expect = 4e-22
Identities = 38/115 (33%), Positives = 64/115 (55%), Gaps = 14/115 (12%)
Query: 8 PQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNTGEP 67
P GW E DP+E+L ++ L A G + +G+ NQ E+ + WD +GEP
Sbjct: 37 PNPGWVEHDPLELLANLRAC-------LEAAG----VVDAIGLANQGESCLAWDARSGEP 85
Query: 68 LYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLIQNV 122
L IVW D R +++++++ A + + ++ GLP+ YFSA KL W+++N+
Sbjct: 86 LSPVIVWQDNRTESVLERLRA---EGAEAMVRARTGLPLDAYFSASKLGWILRNL 137
This subgroup corresponds to a small group of proteobacterial glycerol kinase (GK)-like proteins, including the glycerol kinase from Pseudomonas aeruginosa. Most bacteria, such as Escherichia coli, take up glycerol passively by facilitated diffusion. In contrast, P. aeruginosa may also utilize a binding protein-dependent active transport system to mediate glycerol transportation. The glycerol kinase subsequently phosphorylates the intracellular glycerol to glycerol 3-phosphate (G3P). GKs belong to the FGGY family of carbohydrate kinases, the monomers of which contain two large domains, which are separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 470
>gnl|CDD|223996 COG1070, XylB, Sugar (pentulose and hexulose) kinases [Carbohydrate transport and metabolism]
Score = 82.6 bits (205), Expect = 1e-19
Identities = 33/117 (28%), Positives = 55/117 (47%), Gaps = 7/117 (5%)
Query: 5 TISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNT 64
+PQ GWAEQDP AV + + K +I +G++ Q T V D +
Sbjct: 33 LSTPQPGWAEQDPEVWWDAVCEIIRELVAKAGVDP---SEIKAIGVSGQGPTVVPVDKD- 88
Query: 65 GEPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLIQN 121
G PL AI++ D RA V+++ + +++ + G P+ + A K+ W +N
Sbjct: 89 GRPLRPAIIYMDRRAKEEVEELKERIGEEE---IFERTGNPLDSQYVAPKILWFKRN 142
This subgroup is composed of uncharacterized bacterial and archaeal xylulose kinases-like proteins with similarity to bacterial D-xylulose kinases (XK, also known as xylulokinase; EC 2.7.1.17), which catalyze the rate-limiting step in the ATP-dependent phosphorylation of D-xylulose to produce D-xylulose 5-phosphate (X5P) and ADP. The presence of Mg2+ or Mn2+ is required for catalytic activity. D-XK exists as a dimer with an active site that lies at the interface between the N- and C-terminal domains. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Members of this subgroup belong to the FGGY family of carbohydrate kinases. Length = 492
>gnl|CDD|212665 cd07793, FGGY_GK5_metazoa, metazoan glycerol kinase 5-like proteins; belongs to the FGGY family of carbohydrate kinases
Score = 77.0 bits (190), Expect = 1e-17
Identities = 26/83 (31%), Positives = 45/83 (54%), Gaps = 3/83 (3%)
Query: 3 ISTISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDL 62
I + P+ G+ E DP ++ + + A++ L+ I LGI+ QR + + W+
Sbjct: 31 IELLYPEPGYVEIDPDKLWTQIVGVIKEAVKD---ANLTAKQIAGLGISTQRGSFLTWNK 87
Query: 63 NTGEPLYNAIVWSDTRADNIVDQ 85
+TG+P +N I W D RAD +V +
Sbjct: 88 STGKPYHNFITWKDLRADELVKE 110
This subgroup corresponds to a group of metazoan putative glycerol kinases (GK), which may be coded by the GK-like gene, GK5. Sequence comparison shows members of this group are homologs of bacterial GKs, and they retain all functionally important residues. However, GK-like proteins in this family do not have detectable GK activity. The reason remains unclear. It has been suggested tha the conserved catalytic residues might facilitate them performing a distinct function. GKs belong to the FGGY family of carbohydrate kinases, the monomers of which contain two large domains, which are separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 504
>gnl|CDD|198374 cd07808, FGGY_D-XK_EcXK-like, Escherichia coli xylulokinase-like D-xylulose kinases; a subgroup of the FGGY family of carbohydrate kinases
Score = 73.7 bits (182), Expect = 2e-16
Identities = 32/117 (27%), Positives = 58/117 (49%), Gaps = 8/117 (6%)
Query: 5 TISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNT 64
P+ GW+EQDP + +A + + + K G++ ++ +G++ Q V+ D
Sbjct: 33 LSQPKPGWSEQDPEDWWEATKAAIRELLAK---SGIAGGEVRGIGLSGQMHGLVLLD-KD 88
Query: 65 GEPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLIQN 121
G+ L AI+W+D R +++ + + L I G P P F+A KL WL ++
Sbjct: 89 GKVLRPAILWNDQRTTAECEEITERVGGE----LIEITGNPALPGFTAPKLLWLREH 141
This subgroup is predominantly composed of bacterial D-xylulose kinases (XK, also known as xylulokinase; EC 2.7.1.17), which catalyze the rate-limiting step in the ATP-dependent phosphorylation of D-xylulose to produce D-xylulose 5-phosphate (X5P) and ADP. D-xylulose has been used as a source of carbon and energy by a variety of microorganisms. Some uncharacterized sequences are also included in this subgroup. The prototypical member of this CD is Escherichia coli xylulokinase (EcXK), which exists as a dimer. Each monomer consists of two large domains separated by an open cleft that forms an active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. The presence of Mg2+ or Mn2+ is required for catalytic activity. Members of this subgroup belong to the FGGY family of carbohydrate kinases. Length = 482
>gnl|CDD|198371 cd07803, FGGY_D-XK, D-xylulose kinases; a subgroup of the FGGY family of carbohydrate kinases
Score = 71.2 bits (175), Expect = 1e-15
Identities = 39/117 (33%), Positives = 56/117 (47%), Gaps = 8/117 (6%)
Query: 5 TISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNT 64
T SP GW+EQDP + AVQ ++ L G S +DI +G+T Q V+ D
Sbjct: 33 TSSPHPGWSEQDPADWWDAVQRALEAL---LDQAGDSAEDIAAIGVTGQMHGAVLLD-QQ 88
Query: 65 GEPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLIQN 121
G L AI+W+DTR+ +V + I G +P ++ KL WL +N
Sbjct: 89 GRVLRPAILWNDTRS---APEVTELKARLGAEIFS-ITGNIPTPGWTLPKLLWLKEN 141
This subfamily is predominantly composed of bacterial D-xylulose kinases (XK, also known as xylulokinase; EC 2.7.1.17), which catalyze the rate-limiting step in the ATP-dependent phosphorylation of D-xylulose to produce D-xylulose 5-phosphate (X5P) and ADP. Some uncharacterized sequences are also included in this subfamily. The prototypical member of this subfamily is Escherichia coli xylulokinase (EcXK), which exists as a dimer. Each monomer consists of two large domains separated by an open cleft that forms an active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. XKs do not have any known allosteric regulators, and they may have weak but significant activity in the absence of substrate. The presence of Mg2+ or Mn2+ is required for catalytic activity. Members of this subfamily belong to the FGGY family of carbohydrate kinases. Length = 482
This subfamily consists of uncharacterized hypothetical bacterial proteins with similarity to Escherichia coli sugar kinase ygcE , whose functional roles are not yet clear. Escherichia coli ygcE is recognized by this model, but is not present in the alignment as it contains a deletion relative to other members of the group. These proteins belong to the FGGY family of carbohydrate kinases, the monomers of which contain two large domains, which are separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 488
>gnl|CDD|198373 cd07805, FGGY_XK_like_2, uncharacterized xylulose kinase-like proteins; a subgroup of the FGGY family of carbohydrate kinases
Score = 68.4 bits (168), Expect = 1e-14
Identities = 31/120 (25%), Positives = 47/120 (39%), Gaps = 10/120 (8%)
Query: 8 PQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNTGEP 67
G AEQDP + AV R +E G++ + + + Q + V D G P
Sbjct: 36 LPGGGAEQDPEDWWDAVVRATRRLLED---SGVNPRRVAGISFSGQMQGVVPVD-EDGRP 91
Query: 68 LYNAIVWSDTRADNIVDQVLAKFPDQDK------DYLKPICGLPVSPYFSALKLSWLIQN 121
L AI+W D RA ++++ +L+ G P S K+ WL N
Sbjct: 92 LRPAIIWMDQRAAPEAERLMEGLGKVAGYGLKLLKWLRLTGGAPKSGKDPLAKILWLRDN 151
This subgroup is composed of uncharacterized proteins with similarity to bacterial D-Xylulose kinases (XK, also known as xylulokinase; EC 2.7.1.17), which catalyze the rate-limiting step in the ATP-dependent phosphorylation of D-xylulose to produce D-xylulose 5-phosphate (X5P) and ADP. The presence of Mg2+ or Mn2+ is required for catalytic activity. D-XK exists as a dimer with an active site that lies at the interface between the N- and C-terminal domains. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Members of this subgroup belong to the FGGY family of carbohydrate kinases. Length = 514
>gnl|CDD|212666 cd07802, FGGY_L-XK, L-xylulose kinases; a subfamily of the FGGY family of carbohydrate kinases
This subfamily is composed of bacterial L-xylulose kinases (L-XK, also known as L-xylulokinase; EC 2.7.1.53), which catalyze the ATP-dependent phosphorylation of L-xylulose to produce L-xylulose 5-phosphate and ADP. The presence of Mg2+ might be required for catalytic activity. Some uncharacterized sequences are also included in this subfamily. L-XKs belong to the FGGY family of carbohydrate kinases, the monomers of which contain two large domains, which are separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 447
>gnl|CDD|212659 cd07770, FGGY_GntK, Gluconate kinases; a subfamily of the FGGY family of carbohydrate kinases
Score = 66.1 bits (162), Expect = 8e-14
Identities = 33/113 (29%), Positives = 53/113 (46%), Gaps = 9/113 (7%)
Query: 6 ISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNTG 65
+P +G AEQDP EI AV +D + K I + ++ + + D + G
Sbjct: 34 ETPPDGAAEQDPDEIFDAVLEILDEVVAKALG-----GRIAAVSFSSAMHSLIALDED-G 87
Query: 66 EPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWL 118
EPL I W+DTRA +++ + ++ Y + G P+ P + KL WL
Sbjct: 88 EPLTPVITWADTRAAEYAEELKERLDGRE-LYQR--TGCPLHPMYPLAKLLWL 137
This subfamily is composed of a group of gluconate kinases (GntK, also known as gluconokinase; EC 2.7.1.12) encoded by the gntK gene, which catalyzes the ATP-dependent phosphorylation of D-gluconate and produce 6-phospho-D-gluconate and ADP. The presence of Mg2+ might be required for catalytic activity. The prototypical member of this subfamily is GntK from Lactobacillus acidophilus. Unlike Escherichia coli GntK, which belongs to the superfamily of P-loop containing nucleoside triphosphate hydrolases, members in this subfamily are homologous to glycerol kinase, xylulose kinase, and rhamnulokinase from Escherichia coli. They have been classified as members of the FGGY family of carbohydrate kinases, which contain two large domains separated by a deep cleft that forms the active site. This model spans both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Some uncharacterized homologous sequences are also included in this subfamily. The Lactobacillus gnt operon contains a single gntK gene. The gnt operons of some bacteria, such as Corynebacterium glutamicum, have two gntK genes. For example, the C. glutamicum gnt operon has both a gluconate kinase gntV gene (also known as gntK) and a second hypothetical gntK gene (also known as gntK2). Both gluconate kinases encoded by these genes belong to this family, however the protein encoded by C. glutamicum gntV is not included in this model as it is truncated in the C-terminal domain. Length = 440
Score = 64.3 bits (157), Expect = 4e-13
Identities = 40/116 (34%), Positives = 59/116 (50%), Gaps = 9/116 (7%)
Query: 4 STISPQEGWAEQDPMEILQAVQTTMDRAIEKLSA-HGLSRDDIVTLGITNQRETTVVWDL 62
+ ISP GW+EQDP + A + AI++L DI +GI+ Q V+ D
Sbjct: 30 TVISPHPGWSEQDPEDWWDAT----EEAIKELLEQASEMGQDIKGIGISGQMHGLVLLDA 85
Query: 63 NTGEPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWL 118
N GE L AI+W+DTR +++ A+ D+ + I G P F+A KL W+
Sbjct: 86 N-GEVLRPAILWNDTRTAQECEELEAELGDER---VLEITGNLALPGFTAPKLLWV 137
This model describes D-xylulose kinases, a subfamily of the FGGY family of carbohydrate kinases. The member from Klebsiella pneumoniae, designated DalK (see PMID:9324246), was annotated erroneously in GenBank as D-arabinitol kinase but is authentic D-xylulose kinase. D-xylulose kinase (XylB) generally is found with xylose isomerase (XylA) and acts in xylose utilization [Energy metabolism, Sugars]. Length = 481
>gnl|CDD|198376 cd07810, FGGY_D-XK_2, D-xylulose kinases, subgroup 2; members of the FGGY family of carbohydrate kinases
Score = 62.4 bits (152), Expect = 1e-12
Identities = 36/117 (30%), Positives = 54/117 (46%), Gaps = 10/117 (8%)
Query: 6 ISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNTG 65
+SPQ GWAEQDP + I + +I +GI+ Q V+ D G
Sbjct: 38 LSPQPGWAEQDPEIWWDYTCAATKQLINQGKEDL---SNIQAIGISYQMHGLVLVDKQ-G 93
Query: 66 EPLYNAIVWSDTRADNIVDQVLAKFPDQDKDY-LKPICGLPVSPYFSALKLSWLIQN 121
L AI+W D+RA V F + +D+ L + P + F+A KL+W+ +N
Sbjct: 94 NVLRPAIIWCDSRA---VSIGEKAFQELGEDFCLSHLLNSPGN--FTASKLAWVKEN 145
This subgroup is predominantly composed of bacterial D-xylulose kinases (XK, also known as xylulokinase; EC 2.7.1.17). They share high sequence similarity with Escherichia coli xylulokinase (EcXK), which catalyzes the rate-limiting step in the ATP-dependent phosphorylation of D-xylulose to produce D-xylulose 5-phosphate (X5P) and ADP. EcXK exists as a dimer. Each monomer consists of two large domains separated by an open cleft that forms an active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. The presence of Mg2+ or Mn2+ might be required for catalytic activity. Members of this subgroup belong to the FGGY family of carbohydrate kinases. Length = 490
>gnl|CDD|198352 cd07774, FGGY_1, uncharacterized subgroup; belongs to the FGGY family of carbohydrate kinases
Score = 60.5 bits (147), Expect = 8e-12
Identities = 33/113 (29%), Positives = 57/113 (50%), Gaps = 10/113 (8%)
Query: 9 QEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNTGEPL 68
+G DP E+ +A++ + +A+ + D I + IT+ E+ V+ D + GEPL
Sbjct: 36 SDGGPYFDPDELWRAIEKVICQALAA------APDPIAAISITSVGESGVLVDAD-GEPL 88
Query: 69 YNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLIQN 121
Y AI W D R + +++ + P + I GLP P +S K+ WL ++
Sbjct: 89 YPAIAWYDRRTEEEAEELRKQDP---GLAIYEITGLPPDPIYSLFKILWLREH 138
This subfamily is composed of uncharacterized carbohydrate kinases. They are sequence homologous to bacterial glycerol kinase and have been classified as members of the FGGY family of carbohydrate kinases. The monomers of FGGY proteins contain two large domains, which are separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 430
>gnl|CDD|198360 cd07783, FGGY_CarbK-RPE_like, Carbohydrate kinase and ribulose-phosphate 3-epimerase fusion proteins-like; belongs to the FGGY family of carbohydrate kinases
Score = 51.6 bits (124), Expect = 8e-09
Identities = 30/88 (34%), Positives = 42/88 (47%), Gaps = 4/88 (4%)
Query: 5 TISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNT 64
T P+ GWAEQ+P + +A+ + A L+ G++ D+ L T V D
Sbjct: 34 TTHPRPGWAEQNPEDWWEALGAAVREA---LAEAGIAAPDVAALCCDTTCCTVVALDAA- 89
Query: 65 GEPLYNAIVWSDTRADNIVDQVLAKFPD 92
G PL AI+W D RA +VLA D
Sbjct: 90 GTPLRPAILWMDVRAAEEAARVLATGDD 117
This subgroup is composed of uncharacterized proteins with similarity to carbohydrate kinases. Some members are carbohydrate kinase and ribulose-phosphate 3-epimerase fusion proteins. Carbohydrate kinases catalyze the ATP-dependent phosphorylation of their carbohydrate substrate to produce phosphorylated sugar and ADP. The presence of Mg2+ is required for catalytic activity. This subgroup shows high homology to characterized ribulokinases and belongs to the FGGY family of carbohydrate kinases, the monomers of which contain two large domains, which are separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 484
>gnl|CDD|198377 cd07811, FGGY_D-XK_3, D-xylulose kinases, subgroup 3; members of the FGGY family of carbohydrate kinases
This subgroup is composed of proteobacterial D-xylulose kinases (XK, also known as xylulokinase; EC 2.7.1.17). They share high sequence similarity with Escherichia coli xylulokinase (EcXK), which catalyzes the rate-limiting step in the ATP-dependent phosphorylation of D-xylulose to produce D-xylulose 5-phosphate (X5P) and ADP. Some uncharacterized sequences are also included in this subfamily. EcXK exists as a dimer. Each monomer consists of two large domains separated by an open cleft that forms an active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. The presence of Mg2+ or Mn2+ might be required for catalytic activity. Members of this subgroup belong to the FGGY family of carbohydrate kinases. Length = 493
>gnl|CDD|198346 cd07768, FGGY_RBK_like, Ribulokinase-like carbohydrate kinases; a subfamily of the FGGY family of carbohydrate kinases
Score = 47.1 bits (112), Expect = 3e-07
Identities = 37/110 (33%), Positives = 54/110 (49%), Gaps = 8/110 (7%)
Query: 11 GWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNTGEPLYN 70
GWAEQDP + AV+T + A+ +A G+ D + LG+ T V D G+PL
Sbjct: 41 GWAEQDPEDWWPAVRTAVRAAV---AAAGVDPDQVAALGVDATSCTVVPLDAE-GQPLTP 96
Query: 71 AIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLIQ 120
A++W D RA + + + DY G VSP + K+ WL+Q
Sbjct: 97 ALLWDDHRAADQANAINEVGGPALWDYG----GKIVSPEWMLPKVLWLLQ 142
This subfamily is composed of ribulokinases (RBKs) and similar proteins from bacteria and eukaryota. RBKs catalyze the MgATP-dependent phosphorylation of a variety of sugar substrates including L- and/or D-ribulose. Members of this subfamily contain two large domains separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Members of this subfamily belong to the FGGY family of carbohydrate kinases. Length = 465
>gnl|CDD|198375 cd07809, FGGY_D-XK_1, D-xylulose kinases, subgroup 1; members of the FGGY family of carbohydrate kinases
Score = 45.0 bits (107), Expect = 2e-06
Identities = 28/116 (24%), Positives = 51/116 (43%), Gaps = 6/116 (5%)
Query: 6 ISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNTG 65
IS G EQ P + A+ +A+ G+ ++ +G++ Q+ V D G
Sbjct: 35 ISGSNGRREQQPQWWIDALVEAFRQALADA---GIDPKEVRAIGVSGQQHGLVPLD-AQG 90
Query: 66 EPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWLIQN 121
E L A +W DT +++ K K +++ + G ++A KL WL ++
Sbjct: 91 EVLRPAKLWCDTETAPENAELIEKL-GGAKAWIERL-GNAPLTGYTASKLLWLKEH 144
This subgroup is composed of D-xylulose kinases (XK, also known as xylulokinase; EC 2.7.1.17) from bacteria and eukaryota. They share high sequence similarity with Escherichia coli xylulokinase (EcXK), which catalyzes the rate-limiting step in the ATP-dependent phosphorylation of D-xylulose to produce D-xylulose 5-phosphate (X5P) and ADP. Some uncharacterized sequences are also included in this subfamily. EcXK exists as a dimer. Each monomer consists of two large domains separated by an open cleft that forms an active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. The presence of Mg2+ or Mn2+ might be required for catalytic activity. Members of this subgroup belong to the FGGY family of carbohydrate kinases. Length = 487
>gnl|CDD|212661 cd07777, FGGY_SHK_like, sedoheptulokinase-like proteins; a subfamily of the FGGY family of carbohydrate kinases
Score = 42.7 bits (101), Expect = 1e-05
Identities = 32/131 (24%), Positives = 48/131 (36%), Gaps = 29/131 (22%)
Query: 2 DISTISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWD 61
++ + P EQD +IL T+D +++L L + +G+T Q V+W
Sbjct: 36 NVPSDGPLGS--EQDVDKILS----TLDSCLKRLPKELLK--KVKAIGVTGQMHGIVLWK 87
Query: 62 -----------LNTGEPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYF 110
T P+ N W D R + L P KP LP+ F
Sbjct: 88 QDQSCEDGDLISITNTPVSNLYTWQDGRCS---EDFLKSLP-------KPQSHLPIHTGF 137
Query: 111 SALKLSWLIQN 121
L WL +N
Sbjct: 138 GCATLFWLQKN 148
This subfamily is predominantly composed of uncharacterized bacterial and eukaryotic proteins with similarity to human sedoheptulokinase (SHK, also known as D-altro-heptulose or heptulokinase, EC 2.7.1.14) encoded by the carbohydrate kinase-like (CARKL/SHPK) gene. SHK catalyzes the ATP-dependent phosphorylation of sedoheptulose to produce sedoheptulose 7-phosphate and ADP. The presence of Mg2+ or Mn2+ might be required for catalytic activity. Members of this subfamily belong to the FGGY family of carbohydrate kinases, the monomers of which contain two large domains, which are separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 448
>gnl|CDD|130381 TIGR01314, gntK_FGGY, gluconate kinase, FGGY type
Score = 42.2 bits (99), Expect = 2e-05
Identities = 30/112 (26%), Positives = 51/112 (45%), Gaps = 8/112 (7%)
Query: 7 SPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNTGE 66
+P G AE++P EI +AV T+ L D+I+ + + Q + + +D N +
Sbjct: 35 TPASGMAEENPEEIFEAVLVTIREVSINLE----DEDEILFVSFSTQMHSLIAFDENW-Q 89
Query: 67 PLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWL 118
PL I W+D RA +Q+ ++ + G P+ P K+ WL
Sbjct: 90 PLTRLITWADNRAVKYAEQIKE---SKNGFDIYRRTGTPIHPMAPLSKIIWL 138
Gluconate is derived from glucose in two steps. This model describes one form of gluconate kinase, belonging to the FGGY family of carbohydrate kinases. Gluconate kinase phosphoryates gluconate for entry into the Entner-Douderoff pathway [Energy metabolism, Sugars]. Length = 505
Score = 40.7 bits (95), Expect = 6e-05
Identities = 35/111 (31%), Positives = 49/111 (44%), Gaps = 11/111 (9%)
Query: 8 PQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDIVTLGITNQRETTVVWDLNTGEP 67
P W+EQDP + QA DRA++ L S D+ LGI Q + D
Sbjct: 36 PHPLWSEQDPEQWWQAT----DRAMKALGDQH-SLQDVKALGIAGQMHGATLLD-AQQRV 89
Query: 68 LYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYFSALKLSWL 118
L AI+W+D R + A+ P + I G + P F+A KL W+
Sbjct: 90 LRPAILWNDGRCAQECALLEARVPQS-----RVITGNLMMPGFTAPKLLWV 135
Length = 484
>gnl|CDD|212663 cd07782, FGGY_YpCarbK_like, Yersinia Pseudotuberculosis carbohydrate kinase-like subgroup; belongs to the FGGY family of carbohydrate kinases
Score = 35.6 bits (83), Expect = 0.003
Identities = 33/131 (25%), Positives = 49/131 (37%), Gaps = 23/131 (17%)
Query: 2 DISTISPQEGWAEQDPMEILQAVQTTMDRAIEKLSAHGLSRDDI-----------VTLGI 50
I PQ + EQ +I QAV + AI + G+ + + V L
Sbjct: 31 PIQIWHPQPDFVEQSSDDIWQAVCQAVKAAI---AGAGVDPEQVKGIGFDATCSLVVLDK 87
Query: 51 TNQRETTVVWDLNTGEPLYNAIVWSDTRADNIVDQVLAKFPDQDKDYLKPICGLPVSPYF 110
Q +V G+ N IVW D RA + + A+ + + G +SP
Sbjct: 88 EGQ-PLSVSPS---GDNEQNIIVWMDHRA---ISE--AERINATGHPVLKYVGGVISPEM 138
Query: 111 SALKLSWLIQN 121
KL WL +N
Sbjct: 139 ETPKLLWLKEN 149
This subgroup is composed of the uncharacterized Yersinia Pseudotuberculosis carbohydrate kinase that has been named glyerol/xylulose kinase and similar uncharacterized proteins from bacteria and eukaryota. Carbohydrate kinases catalyze the ATP-dependent phosphorylation of their carbohydrate substrate to produce phosphorylated sugar and ADP. The presence of Mg2+ is required for catalytic activity. This subgroup shows high homology to characterized ribulokinases and belongs to the FGGY family of carbohydrate kinases, the monomers of which contain two large domains, which are separated by a deep cleft that forms the active site. This model includes both the N-terminal domain, which adopts a ribonuclease H-like fold, and the structurally related C-terminal domain. Length = 536
>PF00370 FGGY_N: FGGY family of carbohydrate kinases, N-terminal domain; InterPro: IPR018484 It has been shown [] that four different type of carbohydrate kinases seem to be evolutionary related
These enzymes include L-fucolokinase (2.7.1.51 from EC) (gene fucK); gluconokinase (2.7.1.12 from EC) (gene gntK); glycerol kinase (2.7.1.30 from EC) (gene glpK); xylulokinase (2.7.1.17 from EC) (gene xylB); and L-xylulose kinase (2.7.1.53 from EC) (gene lyxK). These enzymes are proteins of from 480 to 520 amino acid residues. This entry represents the N-terminal domain of these proteins. It adopts a ribonuclease H-like fold and is structurally related to the C-terminal domain [, ].; GO: 0016773 phosphotransferase activity, alcohol group as acceptor, 0005975 carbohydrate metabolic process; PDB: 3G25_D 3GE1_D 2NLX_A 2ITM_A 2ZF5_Y 3L0Q_B 3GG4_B 3I8B_A 3H3O_C 3FLC_X ....
Members of this family are L-fuculokinase, from the clade that includes the L-fuculokinase of Escherichia coli. This enzyme catalyzes the second step in fucose catabolism. This family belongs to FGGY family of carbohydrate kinases (pfam02782, pfam00370). It is encoded by the kinase (K) gene of the fucose (fuc) operon.
This enzyme catalyzes the second step in arabinose catabolism. The most closely related protein subfamily outside the scope of this model includes ribitol kinase from E. coli.
This model represents a subfamily of the FGGY family of carbohydrate kinases. This subfamily is closely related to a set of ribulose kinases, and many members are designated ribitol kinase. However, the member from Klebsiella pneumoniae, from a ribitol catabolism operon, accepts D-ribulose and to a lesser extent D-arabinitol and ribitol (PubMed:9639934 and JW Lengeler, personal communication); its annotation in GenBank as ribitol kinase is imprecise and may have affected public annotation of related proteins.
Gluconate is derived from glucose in two steps. This model describes one form of gluconate kinase, belonging to the FGGY family of carbohydrate kinases. Gluconate kinase phosphoryates gluconate for entry into the Entner-Douderoff pathway.
This domain may be involved in generating or regenerating the active sites of enzymes related to (R)-2-hydroxyglutaryl-CoA dehydratase and benzoyl-CoA reductase.
4.99.5 from EC) catalyses the reaction at the branch point of the biosynthetic pathway leading to the three aromatic amino acids, phenylalanine, tryptophan and tyrosine (chorismic acid is the last common intermediate, and CM leads to the L-phenylalanine/L-tyrosine branch). It is part of the shikimate pathway, which is present only in bacteria, fungi and plants. This entry represents a family of monofunctional (non-fused) chorismate mutases from Gram-positive bacteria (Firmicutes) and cyanobacteria. Trusted members of the family are found in operons with other enzymes of the chorismate pathways, both up- and downstream of CM (Listeria, Bacillus, Oceanobacillus) or are the sole CM in the genome where the other members of the chorismate pathways are found elsewhere in the genome (Nostoc, Thermosynechococcus). They are monofunctional, homotrimeric, nonallosteric enzymes and are not regulated by the end-product aromatic amino acids. The three types of CM are AroQ class, Prokaryotic type (e.g., IPR008239 from INTERPRO amongst others); AroQ class, Eukaryotic type (IPR008238 from INTERPRO); and AroH class. They fall into two structural folds (AroQ class and AroH class) which are completely unrelated []. The two types of the AroQ structural class (the Escherichia coli CM dimer and the yeast CM monomer) can be structurally superimposed, and the topology of the four-helix bundle forming the active site is conserved []. For additional information please see [, , , , , , ].; PDB: 2CHS_K 2CHT_L 1COM_J 1FNJ_A 1FNK_A 1DBF_C 1UI9_A 1ODE_A 1UFY_A 1XHO_C ....
>cd02185 AroH Chorismate mutase (AroH) is one of at least five chorismate-utilizing enzymes present in microorganisms that catalyze the rearrangement of chorismate to prephenic acid, the first committed step in the biosynthesis of aromatic amino acids
In prokaryotes, chorismate mutase may be fused to prephenate dehydratase, prephenate dehydrogenase, or 3-deoxy-D-arabino-heptulosonat-7-phosphate (DAHP) as part of a bifunctional enzyme. The AroH domain forms a homotrimer with three-fold symmetry.
This model represents a family of monofunctional (non-fused) chorismate mutases from gram positive bacteria (Firmicutes) and cyanobacteria. Trusted members of the family are found in operons with other enzymes of the chorismate pathways, both up- and downstream of CM (Listeria, Bacillus, Oceanobacillus) or are the sole CM in the genome where the other members of the chorismate pathways are found elsewhere in the genome (Nostoc, Thermosynechococcus).
>pdb|1BU6|O Chain O, Crystal Structures Of Escherichia Coli Glycerol Kinase And The Mutant A65t In An Inactive Tetramer: Conformational Changes And Implications For Allosteric Regulation Length = 501
>pdb|3EZW|A Chain A, Crystal Structure Of A Hyperactive Escherichia Coli Glycerol Kinase Mutant Gly230 --> Asp Obtained Using Microfluidic Crystallization Devices Length = 526
>2dpn_A Glycerol kinase; thermus thermophilus HB8, structural genomics, NPPSFA, national project on protein structural and functional analyses; 2.80A {Thermus thermophilus}
