ID E3HDJ1_ILYPC Unreviewed; 250 AA.
AC E3HDJ1;
DT 11-JAN-2011, integrated into UniProtKB/TrEMBL.
DT 11-JAN-2011, sequence version 1.
DT 27-MAR-2024, entry version 78.
DE RecName: Full=Tryptophan synthase alpha chain {ECO:0000256|HAMAP-Rule:MF_00131};
DE EC=4.2.1.20 {ECO:0000256|HAMAP-Rule:MF_00131};
GN Name=trpA {ECO:0000256|HAMAP-Rule:MF_00131};
GN OrderedLocusNames=Ilyop_2418 {ECO:0000313|EMBL:ADO84177.1};
OS Ilyobacter polytropus (strain ATCC 51220 / DSM 2926 / LMG 16218 / CuHBu1).
OG Plasmid pILYOP01 {ECO:0000313|EMBL:ADO84177.1,
OG ECO:0000313|Proteomes:UP000006875}.
OC Bacteria; Fusobacteriota; Fusobacteriia; Fusobacteriales; Fusobacteriaceae;
OC Ilyobacter.
OX NCBI_TaxID=572544 {ECO:0000313|EMBL:ADO84177.1, ECO:0000313|Proteomes:UP000006875};
RN [1] {ECO:0000313|EMBL:ADO84177.1, ECO:0000313|Proteomes:UP000006875}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51220 / DSM 2926 / LMG 16218 / CuHBu1
RC {ECO:0000313|Proteomes:UP000006875};
RC PLASMID=pILYOP01 {ECO:0000313|Proteomes:UP000006875};
RX PubMed=21304735; DOI=10.4056/sigs.1273360;
RA Sikorski J., Chertkov O., Lapidus A., Nolan M., Lucas S., Del Rio T.G.,
RA Tice H., Cheng J.F., Tapia R., Han C., Goodwin L., Pitluck S., Liolios K.,
RA Ivanova N., Mavromatis K., Mikhailova N., Pati A., Chen A., Palaniappan K.,
RA Land M., Hauser L., Chang Y.J., Jeffries C.D., Brambilla E., Yasawong M.,
RA Rohde M., Pukall R., Spring S., Goker M., Woyke T., Bristow J., Eisen J.A.,
RA Markowitz V., Hugenholtz P., Kyrpides N.C., Klenk H.P.;
RT "Complete genome sequence of Ilyobacter polytropus type strain (CuHbu1).";
RL Stand. Genomic Sci. 3:304-314(2010).
CC -!- FUNCTION: The alpha subunit is responsible for the aldol cleavage of
CC indoleglycerol phosphate to indole and glyceraldehyde 3-phosphate.
CC {ECO:0000256|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:0000256|ARBA:ARBA00000003, ECO:0000256|HAMAP-
CC Rule:MF_00131};
CC -!- PATHWAY: Amino-acid biosynthesis; L-tryptophan biosynthesis; L-
CC tryptophan from chorismate: step 5/5. {ECO:0000256|ARBA:ARBA00004733,
CC ECO:0000256|HAMAP-Rule:MF_00131}.
CC -!- SUBUNIT: Tetramer of two alpha and two beta chains.
CC {ECO:0000256|ARBA:ARBA00011270, ECO:0000256|HAMAP-Rule:MF_00131}.
CC -!- SIMILARITY: Belongs to the TrpA family. {ECO:0000256|HAMAP-
CC Rule:MF_00131, ECO:0000256|RuleBase:RU003662}.
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DR EMBL; CP002282; ADO84177.1; -; Genomic_DNA.
DR RefSeq; WP_013388836.1; NC_014633.1.
DR AlphaFoldDB; E3HDJ1; -.
DR KEGG; ipo:Ilyop_2418; -.
DR HOGENOM; CLU_016734_0_0_0; -.
DR OrthoDB; 9804578at2; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000006875; Plasmid pILYOP01.
DR GO; GO:0004834; F:tryptophan synthase activity; IEA:UniProtKB-UniRule.
DR CDD; cd04724; Tryptophan_synthase_alpha; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 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 NCBIfam; TIGR00262; trpA; 1.
DR PANTHER; PTHR43406:SF1; TRYPTOPHAN SYNTHASE ALPHA CHAIN, CHLOROPLASTIC; 1.
DR PANTHER; PTHR43406; TRYPTOPHAN SYNTHASE, ALPHA CHAIN; 1.
DR Pfam; PF00290; Trp_syntA; 1.
DR SUPFAM; SSF51366; Ribulose-phoshate binding barrel; 1.
DR PROSITE; PS00167; TRP_SYNTHASE_ALPHA; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_00131};
KW Aromatic amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023141,
KW ECO:0000256|HAMAP-Rule:MF_00131};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00131};
KW Plasmid {ECO:0000313|EMBL:ADO84177.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000006875};
KW Tryptophan biosynthesis {ECO:0000256|ARBA:ARBA00022822, ECO:0000256|HAMAP-
KW Rule:MF_00131}.
FT ACT_SITE 45
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00131"
FT ACT_SITE 56
FT /note="Proton acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00131"
SQ SEQUENCE 250 AA; 27006 MW; 1CCFC49E2111BF7E CRC64;
MGRIENALKK GEKNLIAYLT AGDPCIEKTP ELVLGMESGG AALVEIGIPY SDPLADGPVI
QAASTRALSK DISIEKIFDA VEKIRKESQI PLVFLVYYNT IHNYGGEEFL KKCEETGVDG
LIIPDLPMEE QKELPKNAAV SIIPLVALNS GDRIENIVKD ATGFVYCISS FGVTGTRDTI
SNKASEIVSE IKKYTDIPVA LGFGISHNKM VEDVNRYADA AIVGSAIVKV IEKTKGSAKE
VEDFVASLLR
//
