ID   TRPB_SALA4              Reviewed;         397 AA.
AC   B5F4M4;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   14-OCT-2008, sequence version 1.
DT   25-MAY-2022, entry version 72.
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=SeAg_B1420;
OS   Salmonella agona (strain SL483).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=454166;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SL483;
RX   PubMed=21602358; DOI=10.1128/jb.00297-11;
RA   Fricke W.F., Mammel M.K., McDermott P.F., Tartera C., White D.G.,
RA   Leclerc J.E., Ravel J., Cebula T.A.;
RT   "Comparative genomics of 28 Salmonella enterica isolates: evidence for
RT   CRISPR-mediated adaptive sublineage evolution.";
RL   J. Bacteriol. 193:3556-3568(2011).
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; CP001138; ACH50791.1; -; Genomic_DNA.
DR   RefSeq; WP_000209485.1; NC_011149.1.
DR   AlphaFoldDB; B5F4M4; -.
DR   SMR; B5F4M4; -.
DR   EnsemblBacteria; ACH50791; ACH50791; SeAg_B1420.
DR   KEGG; sea:SeAg_B1420; -.
DR   HOGENOM; CLU_016734_3_1_6; -.
DR   OMA; HGMKSYF; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000008819; Chromosome.
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; Tryptophan biosynthesis.
FT   CHAIN           1..397
FT                   /note="Tryptophan synthase beta chain"
FT                   /id="PRO_1000095815"
FT   MOD_RES         87
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00133"
SQ   SEQUENCE   397 AA;  42868 MW;  73D210F5C6F2FEBD CRC64;
     MTTLLNPYFG EFGGMYVPQI LMPALNQLEE AFVSAQKDPE FQAQFADLLK NYAGRPTALT
     KCQNITAGTR TTLYLKREDL LHGGAHKTNQ VLGQALLAKR MGKSEIIAET GAGQHGVASA
     LASALLGLKC RIYMGAKDVE RQSPNVFRMR LMGAEVIPVH SGSATLKDAC NEALRDWSGS
     YETAHYMLGT AAGPHPYPTI VREFQRMIGE ETKAQILDKE GRLPDAVIAC VGGGSNAIGM
     FADFINDTSV GLIGVEPGGH GIETGEHGAP LKHGRVGIYF GMKAPMMQTA DGQIEESYSI
     SAGLDFPSVG PQHAYLNSIG RADYVSITDD EALEAFKTLC RHEGIIPALE SSHALAHALK
     MMREQPEKEQ LLVVNLSGRG DKDIFTVHDI LKARGEI