Degrades bioactive fatty acid amides like oleamide, the endogenous cannabinoid, anandamide and myristic amide to their corresponding acids, thereby serving to terminate the signaling functions of these molecules. Hydrolyzes monounsaturated substrate anandamide preferentially as compared to polyunsaturated substrates.
Score = 63.9 bits (154), Expect = 2e-10, Method: Composition-based stats.
Identities = 32/75 (42%), Positives = 44/75 (58%)
Query: 7 VDGLSNATGALKLKGRKASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTVN 66
V G G ++ A+ED+ V+ ++ G IP C TNVP+ S+ +N + G T N
Sbjct: 144 VKGYDTTRGFVQDAYHPATEDSIQVEHYKKLGLIPFCQTNVPQSLLSYNCSNPLFGTTTN 203
Query: 67 PYDFSRTPGGSSGGE 81
PYD +RT GGSSGGE
Sbjct: 204 PYDSTRTCGGSSGGE 218
Degrades bioactive fatty acid amides like palmitoyl ethanolamide (PEA), palmitoleoyl ethanolamide (POEA), oleoyl ethanolamide (OEA), linoleoyl ethanolamide (LOEA), arachidonoyl ethanolamide (anandamide, or AEA), and eicosapentaneoyl ethanolamide (EPEA), thereby serving to terminate the signaling functions of these molecules. EPEA promotes dauer formation and may constitute a signal of high nutrient availability. Breakdown of EPEA may promote lifespan extension when nutrient availability is high.
Caenorhabditis elegans (taxid: 6239)
EC: 3
EC: .
EC: 5
EC: .
EC: 1
EC: .
EC: 9
EC: 9
>sp|Q6DH69|FAH2A_DANRE Fatty-acid amide hydrolase 2-A OS=Danio rerio GN=faah2a PE=2 SV=1
Score = 53.1 bits (126), Expect = 5e-07, Method: Compositional matrix adjust.
Identities = 30/76 (39%), Positives = 42/76 (55%)
Query: 5 VFVDGLSNATGALKLKGRKASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKT 64
+ V GL N+ G+ L+G +A +++ L +AGA+ L TN+ E T G T
Sbjct: 73 ISVVGLPNSCGSKILEGYVPPFNAHVIEKLLDAGAVILGKTNLDEFAMGSSTETSYYGPT 132
Query: 65 VNPYDFSRTPGGSSGG 80
NP+D R PGGSSGG
Sbjct: 133 ANPWDLERVPGGSSGG 148
Allows the formation of correctly charged Gln-tRNA(Gln) through the transamidation of misacylated Glu-tRNA(Gln) in organisms which lack glutaminyl-tRNA synthetase. The reaction takes place in the presence of glutamine and ATP through an activated gamma-phospho-Glu-tRNA(Gln).
Score = 53.1 bits (126), Expect = 5e-07, Method: Compositional matrix adjust.
Identities = 28/72 (38%), Positives = 41/72 (56%)
Query: 9 GLSNATGALKLKGRKASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTVNPY 68
GL+ + L+G DA +++ L+EAGA+ + TN+ E T + G T+NP+
Sbjct: 76 GLATTCSSKILEGYVPPYDAHVIERLKEAGAVIIGKTNMDEFAMGTSTESSCYGVTLNPW 135
Query: 69 DFSRTPGGSSGG 80
D R PGGSSGG
Sbjct: 136 DHERVPGGSSGG 147
Allows the formation of correctly charged Gln-tRNA(Gln) through the transamidation of misacylated Glu-tRNA(Gln) in organisms which lack glutaminyl-tRNA synthetase. The reaction takes place in the presence of glutamine and ATP through an activated gamma-phospho-Glu-tRNA(Gln).
Score = 51.6 bits (122), Expect = 1e-06, Method: Compositional matrix adjust.
Identities = 32/78 (41%), Positives = 47/78 (60%), Gaps = 4/78 (5%)
Query: 5 VFVDGLSNATGALKLKGRKASEDAPIVKILREAGAIPLCNTNVPELC--TSWETTNYITG 62
+ V GL N+ G+ L+G +A +++ L AGA+ L TN+ E +S ET+++ G
Sbjct: 73 ISVVGLPNSCGSKILEGYVPPFNAHVIEKLLSAGAVILGKTNMDEFAMGSSTETSHF--G 130
Query: 63 KTVNPYDFSRTPGGSSGG 80
T NP+D R PGGSSGG
Sbjct: 131 PTANPWDLERVPGGSSGG 148
Allows the formation of correctly charged Gln-tRNA(Gln) through the transamidation of misacylated Glu-tRNA(Gln) in organisms which lack glutaminyl-tRNA synthetase. The reaction takes place in the presence of glutamine and ATP through an activated gamma-phospho-Glu-tRNA(Gln).
Score = 48.5 bits (114), Expect = 1e-05, Method: Compositional matrix adjust.
Identities = 29/76 (38%), Positives = 40/76 (52%)
Query: 5 VFVDGLSNATGALKLKGRKASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKT 64
+ V GL N+ G+ L+ +A +++ L AGA+ L TN+ E T G T
Sbjct: 72 ISVVGLPNSCGSKILEDYIPPFNAYVIEKLLAAGAVILGKTNMDEFAMGSSTETSYFGPT 131
Query: 65 VNPYDFSRTPGGSSGG 80
NP+D R PGGSSGG
Sbjct: 132 ANPWDLERVPGGSSGG 147
Allows the formation of correctly charged Gln-tRNA(Gln) through the transamidation of misacylated Glu-tRNA(Gln) in organisms which lack glutaminyl-tRNA synthetase. The reaction takes place in the presence of glutamine and ATP through an activated gamma-phospho-Glu-tRNA(Gln).
Score = 86.6 bits (215), Expect = 1e-21
Identities = 34/75 (45%), Positives = 42/75 (56%)
Query: 7 VDGLSNATGALKLKGRKASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTVN 66
V G+ G+ L+G DA +V+ LR AGA+ L TN+ E T N G T N
Sbjct: 60 VKGVPTTAGSKALEGYPPPYDATVVERLRAAGAVILGKTNMDEFAMGSTTENSAFGPTRN 119
Query: 67 PYDFSRTPGGSSGGE 81
P+D SRTPGGSSGG
Sbjct: 120 PWDLSRTPGGSSGGS 134
Length = 431
>gnl|CDD|223232 COG0154, GatA, Asp-tRNAAsn/Glu-tRNAGln amidotransferase A subunit and related amidases [Translation, ribosomal structure and biogenesis]
Score = 82.0 bits (203), Expect = 4e-20
Identities = 30/74 (40%), Positives = 38/74 (51%)
Query: 7 VDGLSNATGALKLKGRKASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTVN 66
GL G+ L+ DA +V+ LR AGA+ L TN+ E T N G T N
Sbjct: 87 TAGLPTTAGSKALEDYVPPYDATVVERLRAAGAVILGKTNMDEFAMGSSTENSAFGPTRN 146
Query: 67 PYDFSRTPGGSSGG 80
P++ R PGGSSGG
Sbjct: 147 PWNLERVPGGSSGG 160
Score = 64.3 bits (157), Expect = 7e-14
Identities = 27/56 (48%), Positives = 31/56 (55%)
Query: 25 SEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTVNPYDFSRTPGGSSGG 80
DAP V LREAGA+ L T PE T + + G T NP+D T GGSSGG
Sbjct: 104 DVDAPAVARLREAGAVLLGKTTTPEFGWKGVTDSPLYGITRNPWDTRLTAGGSSGG 159
Score = 50.0 bits (120), Expect = 8e-09
Identities = 26/68 (38%), Positives = 37/68 (54%), Gaps = 1/68 (1%)
Query: 14 TGALK-LKGRKASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTVNPYDFSR 72
T A K L+ DA +++ L++AGA+ + TN+ E T G T NP++ R
Sbjct: 75 TCASKILENYIPPYDATVIERLKQAGALIIGKTNMDEFAMGSSTETSAFGPTKNPWNLDR 134
Query: 73 TPGGSSGG 80
PGGSSGG
Sbjct: 135 VPGGSSGG 142
In many species, Gln--tRNA ligase is missing. tRNA(Gln) is misacylated with Glu after which a heterotrimeric amidotransferase converts Glu to Gln. This model represents the amidase chain of that heterotrimer, encoded by the gatA gene. In the Archaea, Asn--tRNA ligase is also missing. This amidase subunit may also function in the conversion of Asp-tRNA(Asn) to Asn-tRNA(Asn), presumably with a different recognition unit to replace gatB. Both Methanococcus jannaschii and Methanobacterium thermoautotrophicum have both authentic gatB and a gatB-related gene, but only one gene like gatA. It has been shown that gatA can be expressed only when gatC is also expressed. In most species expressing the amidotransferase, the gatC ortholog is about 90 residues in length, but in Mycoplasma genitalium and Mycoplasma pneumoniae the gatC equivalent is as the C-terminal domain of a much longer protein. Not surprisingly, the Mycoplasmas also represent the most atypical lineage of gatA orthology. This orthology group is more narrowly defined here than in Proc Natl Acad Aci USA 94, 11819-11826 (1997). In particular, a Rhodococcus homolog found in association with nitrile hydratase genes and described as an enantiomer-selective amidase active on several 2-aryl propionamides, is excluded here. It is likely, however, that the amidase subunit GatA is not exclusively a part of the Glu-tRNA(Gln) amidotransferase heterotrimer and restricted to that function in all species [Protein synthesis, tRNA aminoacylation]. Length = 460
Score = 44.8 bits (106), Expect = 7e-07
Identities = 29/75 (38%), Positives = 39/75 (52%), Gaps = 1/75 (1%)
Query: 7 VDGLSNATGA-LKLKGRKASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTV 65
V GL+ GA + A DA +V+ L AGA+ + N+ E + T N G T
Sbjct: 78 VAGLTTLAGAKINRDLAPAKRDATLVQRLSAAGAVLVGALNMDEFAYGFTTENAHYGPTR 137
Query: 66 NPYDFSRTPGGSSGG 80
NP+D +R GGSSGG
Sbjct: 138 NPHDLTRIAGGSSGG 152
Members of this protein family are aminohydrolases related to, but distinct from, glutamyl-tRNA(Gln) amidotransferase subunit A. The best characterized member is the biuret hydrolase of Pseudomonas sp. ADP, which hydrolyzes ammonia from the three-nitrogen compound biuret to yield allophanate. Allophanate is also an intermediate in urea degradation by the urea carboxylase/allophanate hydrolase pathway, an alternative to urease [Unknown function, Enzymes of unknown specificity]. Length = 452
Score = 44.3 bits (105), Expect = 9e-07
Identities = 29/77 (37%), Positives = 36/77 (46%), Gaps = 3/77 (3%)
Query: 7 VDGLSNATGALKLKGRK-ASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTV 65
V G G++ L AS DA +V +L AG + + TN+ E S N G V
Sbjct: 83 VAGSVTTAGSVVLANAAPASRDAAVVALLARAGMVSIGRTNMSEFAFSGLGLNPHYGTPV 142
Query: 66 NPY--DFSRTPGGSSGG 80
NP D R PGGSS G
Sbjct: 143 NPRSTDVPRIPGGSSSG 159
Score = 43.2 bits (102), Expect = 2e-06
Identities = 23/57 (40%), Positives = 31/57 (54%)
Query: 24 ASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTVNPYDFSRTPGGSSGG 80
A DA IV+ LR AGA+ + T++ E + N G+ N D +R PGGSS G
Sbjct: 77 AGADALIVQRLRNAGAVIIGKTHMTEFAFTPVGLNPHYGEPGNAIDPARIPGGSSSG 133
Score = 42.7 bits (101), Expect = 4e-06
Identities = 22/57 (38%), Positives = 29/57 (50%)
Query: 24 ASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTVNPYDFSRTPGGSSGG 80
EDA +V +LR AGAI + TN+ + T T G N +D + GGSS G
Sbjct: 61 PEEDATVVALLRAAGAIVVGKTNLDQFATGLVGTRSPYGAVRNAFDPAYISGGSSSG 117
Allophanate hydrolase catalyzes the second reaction in an ATP-dependent two-step degradation of urea to ammonia and C02, following the action of the biotin-containing urea carboxylase. The yeast enzyme, a fusion of allophanate hydrolase to urea carboxylase, is designated urea amidolyase [Central intermediary metabolism, Nitrogen metabolism]. Length = 561
Score = 38.0 bits (89), Expect = 1e-04
Identities = 24/76 (31%), Positives = 32/76 (42%)
Query: 5 VFVDGLSNATGALKLKGRKASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKT 64
V V GL G+ R A D+ + G I L T +PE S T + G
Sbjct: 85 VDVAGLPTMHGSDAWTPRPAKADSDFARQFLATGLISLGKTQLPEFGFSASTEHPRLGPV 144
Query: 65 VNPYDFSRTPGGSSGG 80
NP++ + G SSGG
Sbjct: 145 RNPWNTDYSAGASSGG 160
Score = 36.9 bits (86), Expect = 3e-04
Identities = 24/57 (42%), Positives = 27/57 (47%)
Query: 24 ASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTVNPYDFSRTPGGSSGG 80
A+ AP V+ L AGA + T EL S N G VNP R PGGSS G
Sbjct: 58 ATRTAPAVEKLLAAGARFVGKTQTDELAFSLNGQNAHYGTPVNPAAPDRVPGGSSSG 114
Score = 36.4 bits (84), Expect = 5e-04
Identities = 20/57 (35%), Positives = 25/57 (43%)
Query: 24 ASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTVNPYDFSRTPGGSSGG 80
A+ AP V + GA + T + E+ S N G NP R PGGSS G
Sbjct: 59 ATSTAPAVLAVLRGGATCVGKTIMDEMAYSINGENAHYGTPTNPIAPDRVPGGSSSG 115
This orthology group is more narrowly defined here than in Proc Natl Acad Aci USA 94, 11819-11826 (1997). In particular, a Rhodococcus homolog found in association with nitrile hydratase genes and described as an enantiomer-selective amidase active on several 2-aryl propionamides, is excluded here. It is likely, however, that the amidase subunit GatA is not exclusively a part of the Glu-tRNA(Gln) amidotransferase heterotrimer and restricted to that function in all species.
Members of this protein family are aminohydrolases related to, but distinct from, glutamyl-tRNA(Gln) amidotransferase subunit A. The best characterized member is the biuret hydrolase of Pseudomonas sp. ADP, which hydrolyzes ammonia from the three-nitrogen compound biuret to yield allophanate. Allophanate is also an intermediate in urea degradation by the urea carboxylase/allophanate hydrolase pathway, an alternative to urease.
>PF01425 Amidase: Amidase; InterPro: IPR000120 Amidase signature (AS) enzymes are a large group of hydrolytic enzymes that contain a conserved stretch of approximately 130 amino acids known as the AS sequence
Probab=100.00 E-value=5.2e-34 Score=203.28 Aligned_cols=84 Identities=43% Similarity=0.644 Sum_probs=74.1
Q ss_pred CCCccccCCccCCCCcccccCCCCCCcHHHHHHHHHCCCeeEEecCcCcccccCCCCCCCCCcCCCCCCCCCCCCCCChh
Q psy178 1 MGGMVFVDGLSNATGALKLKGRKASEDAPIVKILREAGAIPLCNTNVPELCTSWETTNYITGKTVNPYDFSRTPGGSSGG 80 (84)
Q Consensus 1 ~kD~~~~~G~~tt~G~~~~~~~~~~~~a~~v~~L~~aGai~~gkt~~~e~~~~~~~~~~~~g~~~NP~~~~~~~GGSS~G 80 (84)
|||+|+++|++||+|+..+.+.++++|+++|++|+++|||++||||||||+++.++.|..||+++||||+.++|||||||
T Consensus 55 vKD~~~~~g~~tt~G~~~~~~~~~~~~a~~v~~L~~aGai~~gkt~~~e~~~~~~~~~~~~g~~~Np~~~~~~~GGSS~G 134 (441)
T PF01425_consen 55 VKDNIDVAGLPTTAGSPALADNPPTEDAPVVQRLRAAGAIIIGKTNMPEFAMGPTTSNPLYGRTRNPWNPSRTPGGSSGG 134 (441)
T ss_dssp EETTBSBTTSBB-TTSGGGTTBBBSSS-HHHHHHHHTT-EEEEEE--SGGGCSSSSTTTTTEE-EBTTBTTBE--SSSHH
T ss_pred ccccccccccccccccccccCcCcccccchhhheecccccceeeecccceeccccccccccccccCcccccccccccccc
Confidence 69999999999999999999999999999999999999999999999999999999999999999999999999999999
Q ss_pred hhcC
Q psy178 81 EVLK 84 (84)
Q Consensus 81 saal 84 (84)
||++
T Consensus 135 saaa 138 (441)
T PF01425_consen 135 SAAA 138 (441)
T ss_dssp HHHH
T ss_pred cccc
Confidence 9873
They are widespread, being found in both prokaryotes and eukaryotes. AS enzymes catalyse the hydrolysis of amide bonds (CO-NH2), although the family has diverged widely with regard to substrate specificity and function. Nonetheless, these enzymes maintain a core alpha/beta/alpha structure, where the topologies of the N- and C-terminal halves are similar. AS enzymes characteristically have a highly conserved C-terminal region rich in serine and glycine residues, but devoid of aspartic acid and histidine residues, therefore they differ from classical serine hydrolases. These enzymes posses a unique, highly conserved Ser-Ser-Lys catalytic triad used for amide hydrolysis, although the catalytic mechanism for acyl-enzyme intermediate formation can differ between enzymes []. Examples of AS enzymes include: Peptide amidase (Pam) [], which catalyses the hydrolysis of the C-terminal amide bond of peptides. Fatty acid amide hydrolases [], which hydrolyse fatty acid amid substrates (e.g. cannabinoid anandamide and sleep-inducing oleamide), thereby controlling the level and duration of signalling induced by this diverse class of lipid transmitters. Malonamidase E2 [], which catalyses the hydrolysis of malonamate into malonate and ammonia, and which is involved in the transport of fixed nitrogen from bacteroids to plant cells in symbiotic nitrogen metabolism. Subunit A of Glu-tRNA(Gln) amidotransferase [],a heterotrimeric enzyme that catalyses the formation of Gln-tRNA(Gln) by the transamidation of misacylated Glu-tRNA(Gln) via amidolysis of glutamine. ; GO: 0016884 carbon-nitrogen ligase activity, with glutamine as amido-N-donor; PDB: 1OCL_B 1OBK_A 1OBL_B 1OBJ_A 1OCM_B 1OCH_A 1OCK_B 1OBI_A 1O9Q_A 1O9N_B ....
Allophanate hydrolase catalyzes the second reaction in an ATP-dependent two-step degradation of urea to ammonia and C02, following the action of the biotin-containing urea carboxylase. The yeast enzyme, a fusion of allophanate hydrolase to urea carboxylase, is designated urea amidolyase.
>2dc0_A Probable amidase; structural genomics, NPPSFA, national project on protein structural and functional analyses; 2.00A {Thermus thermophilus} Length = 434
