RPS-BLAST 2.2.26 [Sep-21-2011]
Database: CDD.v3.10
44,354 sequences; 10,937,602 total letters
Searching..................................................done
Query= psy9174
(127 letters)
>gnl|CDD|107357 cd06362, PBP1_mGluR, Ligand binding domain of the metabotropic
glutamate receptors (mGluR). Ligand binding domain of
the metabotropic glutamate receptors (mGluR), which are
members of the family C of G-protein-coupled receptors
that transduce extracellular signals into G-protein
activation and ultimately into cellular responses.
mGluRs bind to glutamate and function as an excitatory
neurotransmitter; they are involved in learning, memory,
anxiety, and the perception of pain. Eight subtypes of
mGluRs have been cloned so far, and are classified into
three groups according to their sequence similarities,
transduction mechanisms, and pharmacological profiles.
Group I is composed of mGlu1R and mGlu5R that both
stimulate PLC hydrolysis. Group II includes mGlu2R and
mGlu3R, which inhibit adenylyl cyclase, as do mGlu4R,
mGlu6R, mGlu7R, and mGlu8R, which form group III.
Length = 452
Score = 109 bits (274), Expect = 3e-29
Identities = 36/81 (44%), Positives = 54/81 (66%), Gaps = 3/81 (3%)
Query: 49 GDVLLGGLMMIHSRSESSV-CGPIMAQGGIQALETMLYTIDRINAELTM--NLTLGAHVL 105
GD++LGGL +HS+ CG I Q GIQ LE ML+ +D IN + T+ +TLGAH+L
Sbjct: 1 GDIILGGLFPVHSKGTGGEPCGEIKEQRGIQRLEAMLFALDEINNDPTLLPGITLGAHIL 60
Query: 106 DDCDQDTHGLEMAVDFIKGRV 126
D C +DT+ LE +++F++ +
Sbjct: 61 DTCSRDTYALEQSLEFVRASL 81
>gnl|CDD|107370 cd06375, PBP1_mGluR_groupII, Ligand binding domain of the group II
metabotropic glutamate receptor. Ligand binding domain
of the group II metabotropic glutamate receptor, a
family that contains mGlu2R and mGlu3R, all of which
inhibit adenylyl cyclase. The metabotropic glutamate
receptor is a member of the family C of
G-protein-coupled receptors that transduce extracellular
signals into G-protein activation and ultimately into
intracellular responses. The mGluRs are classified into
three groups which comprise eight subtypes.
Length = 458
Score = 86.0 bits (213), Expect = 7e-21
Identities = 34/78 (43%), Positives = 51/78 (65%), Gaps = 3/78 (3%)
Query: 49 GDVLLGGLMMIHSRSE-SSVCGPIMAQGGIQALETMLYTIDRINAELTM--NLTLGAHVL 105
GD++LGGL +H + E + CG I GIQ LE ML+ IDRIN + + + LG H+L
Sbjct: 1 GDLVLGGLFPVHEKGEGTEECGRINEDRGIQRLEAMLFAIDRINNDPRILPGIKLGVHIL 60
Query: 106 DDCDQDTHGLEMAVDFIK 123
D C +DT+ LE +++F++
Sbjct: 61 DTCSRDTYALEQSLEFVR 78
>gnl|CDD|107371 cd06376, PBP1_mGluR_groupIII, Ligand-binding domain of the group
III metabotropic glutamate receptor. Ligand-binding
domain of the group III metabotropic glutamate receptor,
a family which contains mGlu4R, mGluR6R, mGluR7, and
mGluR8; all of which inhibit adenylyl cyclase. The
metabotropic glutamate receptor is a member of the
family C of G-protein-coupled receptors that transduce
extracellular signals into G-protein activation and
ultimately into intracellular responses. The mGluRs are
classified into three groups which comprise eight
subtypes.
Length = 463
Score = 84.9 bits (210), Expect = 2e-20
Identities = 36/78 (46%), Positives = 53/78 (67%), Gaps = 3/78 (3%)
Query: 49 GDVLLGGLMMIHSRSESSV-CGPIMAQGGIQALETMLYTIDRINA--ELTMNLTLGAHVL 105
GD+ LGGL +H+R + V CG I + GI LE MLY +D+IN+ +L N+TLGA +L
Sbjct: 1 GDITLGGLFPVHARGPAGVPCGDIKKENGIHRLEAMLYALDQINSDPDLLPNVTLGARIL 60
Query: 106 DDCDQDTHGLEMAVDFIK 123
D C +DT+ LE ++ F++
Sbjct: 61 DTCSRDTYALEQSLTFVQ 78
>gnl|CDD|107369 cd06374, PBP1_mGluR_groupI, Ligand binding domain of the group I
metabotropic glutamate receptor. Ligand binding domain
of the group I metabotropic glutamate receptor, a family
containing mGlu1R and mGlu5R, all of which stimulate
phospholipase C (PLC) hydrolysis. The metabotropic
glutamate receptor is a member of the family C of
G-protein-coupled receptors that transduce extracellular
signals into G-protein activation and ultimately into
intracellular responses. The mGluRs are classified into
three groups which comprise eight subtypes.
Length = 472
Score = 66.1 bits (161), Expect = 8e-14
Identities = 31/86 (36%), Positives = 49/86 (56%), Gaps = 7/86 (8%)
Query: 45 AEISGDVLLGGLMMIH-----SRSESSVCGPIMAQGGIQALETMLYTIDRINAELTM--N 97
A + GD+++G L +H + CG I Q GIQ +E M +T+DRINA+ + N
Sbjct: 4 ARMDGDIIIGALFSVHHQPAAEKVPERKCGEIREQYGIQRVEAMFHTLDRINADPVLLPN 63
Query: 98 LTLGAHVLDDCDQDTHGLEMAVDFIK 123
+TLG + D C + LE +++FI+
Sbjct: 64 ITLGCEIRDSCWHSSVALEQSIEFIR 89
>gnl|CDD|153138 cd06350, PBP1_GPCR_family_C_like, Ligand-binding domain of
membrane-bound glutamate receptors that mediate
excitatory transmission on the cellular surface through
initial binding of glutamate and are categorized into
ionotropic glutamate receptors (iGluRs) and metabotropic
glutamate receptors (mGluRs). Ligand-binding domain of
membrane-bound glutamate receptors that mediate
excitatory transmission on the cellular surface through
initial binding of glutamate and are categorized into
ionotropic glutamate receptors (iGluRs) and metabotropic
glutamate receptors (mGluRs). The metabotropic glutamate
receptors (mGluR) are key receptors in the modulation of
excitatory synaptic transmission in the central nervous
system. The mGluRs are coupled to G proteins and are
thus distinct from the iGluRs which internally contain
ligand-gated ion channels. The mGluR structure is
divided into three regions: the extracellular region,
the seven-spanning transmembrane region and the
cytoplasmic region. The extracellular region is further
devided into the ligand-binding domain (LBD) and the
cysteine-rich domain. The LBD has sequence similarity to
the LIVBP, which is a bacterial periplasmic protein
(PBP), as well as to the extracellular region of both
iGluR and the gamma-aminobutyric acid (GABA)b receptor.
iGluRs are divided into three main subtypes based on
pharmacological profile: NMDA, AMPA, and kainate
receptors. All family C GPCRs have a large extracellular
N terminus that contain a domain with homology to
bacterial periplasmic amino acid-binding proteins.
Length = 348
Score = 55.1 bits (133), Expect = 5e-10
Identities = 26/76 (34%), Positives = 40/76 (52%), Gaps = 3/76 (3%)
Query: 52 LLGGLMMIHSRSESSVCGPI-MAQGGIQALETMLYTIDRINAELTM--NLTLGAHVLDDC 108
++GGL +HS SES + G+QA E ML+ ++ IN + + N+TLG H+ D C
Sbjct: 1 IIGGLFPLHSGSESVSLKCGRFGKKGLQAAEAMLFAVEEINNDPDLLPNITLGYHIYDSC 60
Query: 109 DQDTHGLEMAVDFIKG 124
L A+D +
Sbjct: 61 CSPAVALRAALDLLLS 76
>gnl|CDD|107359 cd06364, PBP1_CaSR, Ligand-binding domain of the CaSR
calcium-sensing receptor, which is a member of the
family C receptors within the G-protein coupled receptor
superfamily. Ligand-binding domain of the CaSR
calcium-sensing receptor, which is a member of the
family C receptors within the G-protein coupled receptor
superfamily. CaSR provides feedback control of
extracellular calcium homeostasis by responding
sensitively to acute fluctuations in extracellular
ionized Ca2+ concentration. This ligand-binding domain
has homology to the bacterial leucine-isoleucine-valine
binding protein (LIVBP) and a leucine binding protein
(LBP). CaSR is widely expressed in mammalian tissues and
is active in tissues that are not directly involved in
extracellular calcium homeostasis. Moreover, CaSR
responds to aromatic, aliphatic, and polar amino acids,
but not to positively charged or branched chain amino
acids, which suggests that changes in plasma amino acid
levels are likely to modulate whole body calcium
metabolism. Additionally, the family C GPCRs includes at
least two receptors with broad-spectrum amino
acid-sensing properties: GPRC6A which recognizes basic
and various aliphatic amino acids, its gold-fish homolog
the 5.24 chemoreceptor, and a specific taste receptor
(T1R) which responds to aliphatic, polar, charged, and
branched amino acids, but not to aromatic amino acids.
Length = 510
Score = 50.4 bits (120), Expect = 2e-08
Identities = 30/91 (32%), Positives = 46/91 (50%), Gaps = 14/91 (15%)
Query: 45 AEISGDVLLGGLMMIH-----------SRSESSVCGPIMAQGGIQALETMLYTIDRINAE 93
A+ GD++LGGL IH SR ES C +G + L+ M++ I+ IN
Sbjct: 7 AQKKGDIILGGLFPIHFGVAAKDQDLKSRPESVECIRYNFRG-FRWLQAMIFAIEEINNS 65
Query: 94 LTM--NLTLGAHVLDDCDQDTHGLEMAVDFI 122
T+ N+TLG + D C+ + LE + F+
Sbjct: 66 PTLLPNITLGYRIFDTCNTVSKALEATLSFV 96
>gnl|CDD|153137 cd06269, PBP1_glutamate_receptors_like, Family C G-protein couples
receptors (GPCRs), membrane bound guanylyl cyclases such
as the family of natriuretic peptide receptors (NPRs),
and the N-terminal leucine/isoleucine/valine- binding
protein (LIVBP)-like domain of the ionotropic glutamate
receptors. This CD represents the ligand-binding domain
of the family C G-protein couples receptors (GPCRs),
membrane bound guanylyl cyclases such as the family of
natriuretic peptide receptors (NPRs), and the N-terminal
leucine/isoleucine/valine- binding protein (LIVBP)-like
domain of the ionotropic glutamate receptors, all of
which are structurally similar and related to the
periplasmic-binding fold type I family. The family C
GPCRs consist of metabotropic glutamate receptor (mGluR)
receptors, a calcium-sensing receptor (CaSR),
gamma-aminobutyric receptors (GABAb), the promiscuous
L-alpha-amino acid receptor GPR6A, families of taste and
pheromone receptors, and orphan receptors. Truncated
splicing variants of the orphan receptors are not
included in this CD. The family C GPCRs are activated by
endogenous agonists such as amino acids, ions, and sugar
based molecules. Their amino terminal ligand-binding
region is homologous to the bacterial
leucine-isoleucine-valine binding protein (LIVBP) and a
leucine binding protein (LBP). The ionotropic glutamate
receptors (iGluRs) have an integral ion channel and are
subdivided into three major groups based on their
pharmacology and structural similarities: NMDA
receptors, AMPA receptors, and kainate receptors. The
family of membrane bound guanylyl cyclases is further
divided into three subfamilies: the ANP receptor
(GC-A)/C-type natriuretic peptide receptor (GC-B), the
heat-stable enterotoxin receptor (GC-C)/sensory organ
specific membrane GCs such as retinal receptors (GC-E,
GC-F), and olfactory receptors (GC-D and GC-G).
Length = 298
Score = 40.2 bits (94), Expect = 7e-05
Identities = 18/72 (25%), Positives = 28/72 (38%), Gaps = 8/72 (11%)
Query: 53 LGGLMMIHSRSESSVCGPIMAQGGIQALETMLYTIDRINAELTMNLTLGAHVLDDCDQDT 112
+GGL +HS + G L+ ++ IN +L N TLG + D C +
Sbjct: 2 IGGLFPLHSGGRFG-------EEGAFRAAAALFAVEEINNDLP-NTTLGYEIYDSCCSPS 53
Query: 113 HGLEMAVDFIKG 124
A+D
Sbjct: 54 DAFSAALDLCSL 65
>gnl|CDD|107356 cd06361, PBP1_GPC6A_like, Ligand-binding domain of the promiscuous
L-alpha-amino acid receptor GPRC6A which is a
broad-spectrum amino acid-sensing receptor. This family
includes the ligand-binding domain of the promiscuous
L-alpha-amino acid receptor GPRC6A which is a
broad-spectrum amino acid-sensing receptor, and its fish
homolog, the 5.24 chemoreceptor. GPRC6A is a member of
the family C of G-protein-coupled receptors that
transduce extracellular signals into G-protein
activation and ultimately into cellular responses.
Length = 403
Score = 37.5 bits (87), Expect = 7e-04
Identities = 22/83 (26%), Positives = 37/83 (44%), Gaps = 12/83 (14%)
Query: 52 LLGGLMMIHSRSESS----------VCGPIMAQGGIQALETMLYTIDRIN-AELTMNLTL 100
++GGL IH S C +G +Q L M++ I+ IN + L + +TL
Sbjct: 1 IIGGLFAIHEAMLSVEDTPSRPQIQECVGFEIKGFLQTL-AMIHAIEMINNSTLLLGVTL 59
Query: 101 GAHVLDDCDQDTHGLEMAVDFIK 123
G + D C + T + + F+
Sbjct: 60 GYEIYDTCSEVTTAMAAVLRFLS 82
>gnl|CDD|107358 cd06363, PBP1_Taste_receptor, Ligand-binding domain of the T1R
taste receptor. Ligand-binding domain of the T1R taste
receptor. The T1R is a member of the family C receptors
within the G-protein coupled receptor superfamily, which
also includes the metabotropic glutamate receptors,
GABAb receptors, the calcium-sensing receptor (CaSR),
the V2R pheromone receptors, and a small group of
uncharacterized orphan receptors.
Length = 410
Score = 34.6 bits (80), Expect = 0.009
Identities = 22/78 (28%), Positives = 29/78 (37%), Gaps = 25/78 (32%)
Query: 49 GDVLLGGLMMIHS--------RSESSVC--------GPIMAQGGIQALETMLYTIDRINA 92
GD LLGGL +H R E C G + Q M + ++ IN
Sbjct: 5 GDYLLGGLFPLHYATSALPHRRPEPLDCSSYRFNLSGYRLFQA-------MRFAVEEINN 57
Query: 93 --ELTMNLTLGAHVLDDC 108
L +TLG + D C
Sbjct: 58 STSLLPGVTLGYEIFDHC 75
>gnl|CDD|107261 cd04509, PBP1_ABC_transporter_GCPR_C_like, Family C of G-protein
coupled receptors and their close homologs, the type I
periplasmic-binding proteins of ATP-binding cassette
transporter-like systems. This CD includes members of
the family C of G-protein coupled receptors and their
close homologs, the type I periplasmic-binding proteins
of ATP-binding cassette transporter-like systems. The
family C GPCR includes glutamate/glycine-gated ion
channels such as the NMDA receptor, G-protein-coupled
receptors, metabotropic glutamate, GABA-B, calcium
sensing, phermone receptors, and atrial natriuretic
peptide-guanylate cyclase receptors. The glutamate
receptors that form cation-selective ion channels,
iGluR, can be classified into three different subgroups
according to their binding-affinity for the agonists
NMDA (N-methyl-D-asparate), AMPA
(alpha-amino-3-dihydro-5-methyl-3-oxo-4-
isoxazolepropionic acid), and kainate. L-glutamate is a
major neurotransmitter in the brain of vertebrates and
acts through either mGluRs or iGluRs. mGluRs subunits
possess seven transmembrane segments and a large
N-terminal extracellular domain. ABC-type
leucine-isoleucine-valine-binding protein (LIVBP) is a
bacterial periplasmic binding protein that has homology
with the amino-terminal domain of the glutamate-receptor
ion channels (iGluRs). The extracellular regions of
iGluRs are made of two PBP-like domains in tandem, a
LIVBP-like domain that constitutes the N terminus -
which is included in this CD - followed by a domain
related to lysine-arginine-ornithine-binding protein
(LAOBP) that belongs to the type II periplasmic binding
fold protein superfamily. The uncharacterized
periplasmic components of various ABC-type transport
systems are included in this group.
Length = 299
Score = 32.1 bits (73), Expect = 0.050
Identities = 13/72 (18%), Positives = 22/72 (30%), Gaps = 10/72 (13%)
Query: 53 LGGLMMIHSRSESSVCGPIMAQGGIQALETMLYTIDRINAELTM-NLTLGAHVLDDCDQD 111
+G L + A+ G L ++ INA+ + L + DD
Sbjct: 2 IGVLFPLSG---------PYAEYGAFRLAGAQLAVEEINAKGGIPGRKLELVIYDDQSDP 52
Query: 112 THGLEMAVDFIK 123
L A +
Sbjct: 53 ARALAAARRLCQ 64
>gnl|CDD|216296 pfam01094, ANF_receptor, Receptor family ligand binding region.
This family includes extracellular ligand binding
domains of a wide range of receptors. This family also
includes the bacterial amino acid binding proteins of
known structure.
Length = 343
Score = 30.5 bits (69), Expect = 0.19
Identities = 15/51 (29%), Positives = 19/51 (37%), Gaps = 2/51 (3%)
Query: 78 QALETMLYTIDRINAELTM--NLTLGAHVLDDCDQDTHGLEMAVDFIKGRV 126
Q L M I+ INA+ + +TLG D CD A V
Sbjct: 1 QVLLAMRLAIEDINADGGLLPGITLGYEDDDTCDDSFAVAAAACLLKSKGV 51
>gnl|CDD|223451 COG0374, HyaB, Ni,Fe-hydrogenase I large subunit [Energy production
and conversion].
Length = 545
Score = 29.7 bits (67), Expect = 0.43
Identities = 13/41 (31%), Positives = 18/41 (43%)
Query: 67 VCGPIMAQGGIQALETMLYTIDRINAELTMNLTLGAHVLDD 107
VC A ++ALE L +NA L N+ A + D
Sbjct: 62 VCTTSHALASVRALEDALGITVPVNALLIRNIMQAALFVHD 102
>gnl|CDD|217184 pfam02684, LpxB, Lipid-A-disaccharide synthetase. This is a
family of lipid-A-disaccharide synthetases,
EC:2.4.2.128. These enzymes catalyze the reaction:
UDP-2,3-bis(3-hydroxytetradecanoyl) glucosamine +
2,3-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl
1-phosphate <=> UDP +
2,3-bis(3-hydroxytetradecanoyl)-D-glucosaminyl-1,6
-beta-D-2,
3-bis(3-hydroxytetradecanoyl)-beta-D-glucosaminyl
1-phosphate. These enzymes catalyze the fist
disaccharide step in the synthesis of
lipid-A-disaccharide.
Length = 373
Score = 26.2 bits (58), Expect = 5.4
Identities = 14/44 (31%), Positives = 20/44 (45%), Gaps = 5/44 (11%)
Query: 45 AEISGDVLLGGLMM-IHSRSESS----VCGPIMAQGGIQALETM 83
E SGD+L G L+ + + V GP M G ++L M
Sbjct: 6 GEASGDILGGELIQNLKEHYPNLRFIGVGGPKMEAEGFESLANM 49
>gnl|CDD|236408 PRK09200, PRK09200, preprotein translocase subunit SecA; Reviewed.
Length = 790
Score = 26.1 bits (58), Expect = 6.0
Identities = 15/35 (42%), Positives = 17/35 (48%), Gaps = 3/35 (8%)
Query: 96 MNLTLGAHVLDDCDQD---THGLEMAVDFIKGRVL 127
+ L L AHVL D D G + VD GRVL
Sbjct: 289 IILALRAHVLFKRDVDYIVYDGEIVLVDRFTGRVL 323
>gnl|CDD|217247 pfam02836, Glyco_hydro_2_C, Glycosyl hydrolases family 2, TIM
barrel domain. This family contains beta-galactosidase,
beta-mannosidase and beta-glucuronidase activities.
Length = 297
Score = 25.8 bits (57), Expect = 7.6
Identities = 16/47 (34%), Positives = 23/47 (48%), Gaps = 6/47 (12%)
Query: 71 IMAQGGIQALETMLYTIDRINAELTMNLT--LGAHVLDDCDQDTHGL 115
+M Q I A+ T Y NA L G +V+D+ + +THGL
Sbjct: 44 LMKQLNINAVRTSHYP----NAPEWYQLCDEYGLYVIDETNLETHGL 86
>gnl|CDD|167141 PRK01021, lpxB, lipid-A-disaccharide synthase; Reviewed.
Length = 608
Score = 25.5 bits (56), Expect = 9.2
Identities = 15/45 (33%), Positives = 18/45 (40%), Gaps = 5/45 (11%)
Query: 44 SAEISGDVLLGGLMM-IHSRSESSVC----GPIMAQGGIQALETM 83
+ E SGD L G L+ I + C GP M G L M
Sbjct: 233 AGEHSGDTLGGNLLKEIKALYPDIHCFGVGGPQMRAEGFHPLFNM 277
Database: CDD.v3.10
Posted date: Mar 20, 2013 7:55 AM
Number of letters in database: 10,937,602
Number of sequences in database: 44,354
Lambda K H
0.322 0.137 0.394
Gapped
Lambda K H
0.267 0.0689 0.140
Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 44354
Number of Hits to DB: 6,146,981
Number of extensions: 513669
Number of successful extensions: 310
Number of sequences better than 10.0: 1
Number of HSP's gapped: 298
Number of HSP's successfully gapped: 25
Length of query: 127
Length of database: 10,937,602
Length adjustment: 85
Effective length of query: 42
Effective length of database: 7,167,512
Effective search space: 301035504
Effective search space used: 301035504
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.4 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.9 bits)
S2: 53 (24.3 bits)