TRPA_ACAM1
ID TRPA_ACAM1 Reviewed; 267 AA.
AC B0C6F8;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 26-FEB-2008, sequence version 1.
DT 25-MAY-2022, entry version 69.
DE RecName: Full=Tryptophan synthase alpha chain {ECO:0000255|HAMAP-Rule:MF_00131};
DE EC=4.2.1.20 {ECO:0000255|HAMAP-Rule:MF_00131};
GN Name=trpA {ECO:0000255|HAMAP-Rule:MF_00131}; OrderedLocusNames=AM1_1347;
OS Acaryochloris marina (strain MBIC 11017).
OC Bacteria; Cyanobacteria; Synechococcales; Acaryochloridaceae;
OC Acaryochloris.
OX NCBI_TaxID=329726;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MBIC 11017;
RX PubMed=18252824; DOI=10.1073/pnas.0709772105;
RA Swingley W.D., Chen M., Cheung P.C., Conrad A.L., Dejesa L.C., Hao J.,
RA Honchak B.M., Karbach L.E., Kurdoglu A., Lahiri S., Mastrian S.D.,
RA Miyashita H., Page L., Ramakrishna P., Satoh S., Sattley W.M., Shimada Y.,
RA Taylor H.L., Tomo T., Tsuchiya T., Wang Z.T., Raymond J., Mimuro M.,
RA Blankenship R.E., Touchman J.W.;
RT "Niche adaptation and genome expansion in the chlorophyll d-producing
RT cyanobacterium Acaryochloris marina.";
RL Proc. Natl. Acad. Sci. U.S.A. 105:2005-2010(2008).
CC -!- FUNCTION: The alpha subunit is responsible for the aldol cleavage of
CC indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate.
CC {ECO:0000255|HAMAP-Rule:MF_00131}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(1S,2R)-1-C-(indol-3-yl)glycerol 3-phosphate + L-serine = D-
CC glyceraldehyde 3-phosphate + H2O + L-tryptophan;
CC Xref=Rhea:RHEA:10532, ChEBI:CHEBI:15377, ChEBI:CHEBI:33384,
CC ChEBI:CHEBI:57912, ChEBI:CHEBI:58866, ChEBI:CHEBI:59776; EC=4.2.1.20;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00131};
CC -!- PATHWAY: Amino-acid biosynthesis; L-tryptophan biosynthesis; L-
CC tryptophan from chorismate: step 5/5. {ECO:0000255|HAMAP-
CC Rule:MF_00131}.
CC -!- SUBUNIT: Tetramer of two alpha and two beta chains. {ECO:0000255|HAMAP-
CC Rule:MF_00131}.
CC -!- SIMILARITY: Belongs to the TrpA family. {ECO:0000255|HAMAP-
CC Rule:MF_00131}.
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DR EMBL; CP000828; ABW26379.1; -; Genomic_DNA.
DR RefSeq; WP_012161914.1; NC_009925.1.
DR AlphaFoldDB; B0C6F8; -.
DR SMR; B0C6F8; -.
DR STRING; 329726.AM1_1347; -.
DR EnsemblBacteria; ABW26379; ABW26379; AM1_1347.
DR KEGG; amr:AM1_1347; -.
DR eggNOG; COG0159; Bacteria.
DR HOGENOM; CLU_016734_0_2_3; -.
DR OMA; LVMTYWN; -.
DR OrthoDB; 912786at2; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000000268; Chromosome.
DR GO; GO:0004834; F:tryptophan synthase activity; IEA:UniProtKB-UniRule.
DR CDD; cd04724; Tryptophan_synthase_alpha; 1.
DR Gene3D; 3.20.20.70; -; 1.
DR HAMAP; MF_00131; Trp_synth_alpha; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR011060; RibuloseP-bd_barrel.
DR InterPro; IPR018204; Trp_synthase_alpha_AS.
DR InterPro; IPR002028; Trp_synthase_suA.
DR PANTHER; PTHR43406; PTHR43406; 1.
DR Pfam; PF00290; Trp_syntA; 1.
DR SUPFAM; SSF51366; SSF51366; 1.
DR TIGRFAMs; TIGR00262; trpA; 1.
DR PROSITE; PS00167; TRP_SYNTHASE_ALPHA; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis; Aromatic amino acid biosynthesis; Lyase;
KW Reference proteome; Tryptophan biosynthesis.
FT CHAIN 1..267
FT /note="Tryptophan synthase alpha chain"
FT /id="PRO_1000076344"
FT ACT_SITE 49
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
FT ACT_SITE 60
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00131"
SQ SEQUENCE 267 AA; 28682 MW; C0F5CA98FA79828E CRC64;
MTSVSDCFAQ LRDRGQCALI PFLTAGDPDL ATTASALRQL DASGADLIEL GVPYSDPLAD
GPVIQAAATR ALQRGTRLDQ VLEMVTELSP EIRAPIILFT YYNPIYHRGV AEFLQQIAKA
GVRGLVVPDL PLEESENLLQ QAADLGIEVT LLVAPTSSKE RIEKIALRSQ GFIYLVSTTG
VTGMRTKVEN RVQDLIADLR QVTDKPIGVG FGISRTEHAR QVMDWGADAA IVGSAFVNRL
SEGSPSQGLS AISTFCRSLK SSLLLDA
