ID   TRPB_CLONN              Reviewed;         389 AA.
AC   A0PYH3;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   09-JAN-2007, sequence version 1.
DT   25-MAY-2022, entry version 89.
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=NT01CX_1342;
OS   Clostridium novyi (strain NT).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Clostridiaceae;
OC   Clostridium.
OX   NCBI_TaxID=386415;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NT;
RX   PubMed=17115055; DOI=10.1038/nbt1256;
RA   Bettegowda C., Huang X., Lin J., Cheong I., Kohli M., Szabo S.A., Zhang X.,
RA   Diaz L.A. Jr., Velculescu V.E., Parmigiani G., Kinzler K.W., Vogelstein B.,
RA   Zhou S.;
RT   "The genome and transcriptomes of the anti-tumor agent Clostridium novyi-
RT   NT.";
RL   Nat. Biotechnol. 24:1573-1580(2006).
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; CP000382; ABK60984.1; -; Genomic_DNA.
DR   RefSeq; WP_011721433.1; NC_008593.1.
DR   AlphaFoldDB; A0PYH3; -.
DR   SMR; A0PYH3; -.
DR   STRING; 386415.NT01CX_1342; -.
DR   EnsemblBacteria; ABK60984; ABK60984; NT01CX_1342.
DR   KEGG; cno:NT01CX_1342; -.
DR   PATRIC; fig|386415.7.peg.450; -.
DR   eggNOG; COG0133; Bacteria.
DR   HOGENOM; CLU_016734_3_1_9; -.
DR   OMA; GPEHAMF; -.
DR   OrthoDB; 912282at2; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000008220; 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; Reference proteome; Tryptophan biosynthesis.
FT   CHAIN           1..389
FT                   /note="Tryptophan synthase beta chain"
FT                   /id="PRO_1000076384"
FT   MOD_RES         84
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00133"
SQ   SEQUENCE   389 AA;  42728 MW;  5C9725A4F32C5208 CRC64;
     MKKQFGKFGG QYVSKELTST LKNLEENFFK YCNDDDFKKE YIYYLNNYIG RPSLLYYAKR
     LTKSLGGAKI YLKREDLNHT GAHKINNAIG QILLAKRMGK KKVIAETGAG QHGVATATAA
     ALFGMECTIF MGEEDIKRQK LNTFKMELLG AKIKPVKSGN GTLKDAVDEA IKQWVKSSDD
     TFYVLGSAVG PHPYPTMVRE FQKIIGEETK DQILRMEGRL PDTLIACVGG GSNAIGLFYP
     FIKDENIEII GVEAGGKGVE TGEHGAAFAD GRVGVIHGMK TVIMEDDNGN VKEAYSISAG
     LDYPGVGPEH AYLNDIGRAK YVSITDEEAV EAFKYLCANE GIIPALESSH AIAYTMKLAP
     NMDKDKIIVV NLSGRGDKDV ETISEYLNK