ID   TRPB_VIBA3              Reviewed;         396 AA.
AC   B7VGU7;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   25-MAY-2022, entry version 71.
DE   RecName: Full=Tryptophan synthase beta chain {ECO:0000255|HAMAP-Rule:MF_00133};
DE            EC=4.2.1.20 {ECO:0000255|HAMAP-Rule:MF_00133};
GN   Name=trpB {ECO:0000255|HAMAP-Rule:MF_00133}; OrderedLocusNames=VS_1970;
OS   Vibrio atlanticus (strain LGP32) (Vibrio splendidus (strain Mel32)).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Vibrio.
OX   NCBI_TaxID=575788;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=LGP32;
RA   Mazel D., Le Roux F.;
RT   "Vibrio splendidus str. LGP32 complete genome.";
RL   Submitted (FEB-2009) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: The beta subunit is responsible for the synthesis of L-
CC       tryptophan from indole and L-serine. {ECO:0000255|HAMAP-Rule:MF_00133}.
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_00133};
CC   -!- COFACTOR:
CC       Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00133};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-tryptophan biosynthesis; L-
CC       tryptophan from chorismate: step 5/5. {ECO:0000255|HAMAP-
CC       Rule:MF_00133}.
CC   -!- SUBUNIT: Tetramer of two alpha and two beta chains. {ECO:0000255|HAMAP-
CC       Rule:MF_00133}.
CC   -!- SIMILARITY: Belongs to the TrpB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00133}.
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DR   EMBL; FM954972; CAV19147.1; -; Genomic_DNA.
DR   RefSeq; WP_009848758.1; NC_011753.2.
DR   AlphaFoldDB; B7VGU7; -.
DR   SMR; B7VGU7; -.
DR   STRING; 575788.VS_1970; -.
DR   EnsemblBacteria; CAV19147; CAV19147; VS_1970.
DR   KEGG; vsp:VS_1970; -.
DR   eggNOG; COG0133; Bacteria.
DR   HOGENOM; CLU_016734_3_1_6; -.
DR   OMA; HGMKSYF; -.
DR   OrthoDB; 912282at2; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000009100; Chromosome 1.
DR   GO; GO:0004834; F:tryptophan synthase activity; IEA:UniProtKB-UniRule.
DR   CDD; cd06446; Trp-synth_B; 1.
DR   Gene3D; 3.40.50.1100; -; 2.
DR   HAMAP; MF_00133; Trp_synth_beta; 1.
DR   InterPro; IPR001926; PLP-dep.
DR   InterPro; IPR006653; Trp_synth_b_CS.
DR   InterPro; IPR006654; Trp_synth_beta.
DR   InterPro; IPR023026; Trp_synth_beta/beta-like.
DR   InterPro; IPR036052; Trypto_synt_PLP_dependent.
DR   Pfam; PF00291; PALP; 1.
DR   PIRSF; PIRSF001413; Trp_syn_beta; 1.
DR   SUPFAM; SSF53686; SSF53686; 1.
DR   TIGRFAMs; TIGR00263; trpB; 1.
DR   PROSITE; PS00168; TRP_SYNTHASE_BETA; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Aromatic amino acid biosynthesis; Lyase;
KW   Pyridoxal phosphate; Reference proteome; Tryptophan biosynthesis.
FT   CHAIN           1..396
FT                   /note="Tryptophan synthase beta chain"
FT                   /id="PRO_1000198760"
FT   MOD_RES         86
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00133"
SQ   SEQUENCE   396 AA;  42903 MW;  7CA055B25029EF49 CRC64;
     MAKLDAYFGE YGGQYVPQIL VPALDQLEQA FIDAQADPEF RSEFMTLLQE YAGRPTALTL
     TRNLTKGTKT KLYLKREDLL HGGAHKTNQV LGQALLAKRM GKQEIIAETG AGQHGVATAL
     ACALLGLKCR VYMGAKDVER QSPNVFRMKL MGAEVIPVHS GSSTLKDACN EALRDWSATY
     EDAHYLLGTA AGPHPFPTIV RDFQRMIGEE TKNQILAREG RLPDAVIACV GGGSNAIGMF
     ADFIEEESVR LIGVEPAGKG IDTDQHGAPL KHGKTGIFFG MKAPLMQDEN GQVEESYSVS
     AGLDFPSVGP QHAHLNAIGR AEYDNVTDDE ALEAFQLIAR KEGIIAALES SHALAHAVKM
     AHDDPEKEQL LVVNLSGRGD KDIFSVHDIL KEKGAL