ID   TRPB_BRUC2              Reviewed;         406 AA.
AC   A9M9U2;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-FEB-2008, sequence version 1.
DT   25-MAY-2022, entry version 76.
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=BCAN_A2154;
OS   Brucella canis (strain ATCC 23365 / NCTC 10854).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Brucellaceae; Brucella/Ochrobactrum group; Brucella.
OX   NCBI_TaxID=483179;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 23365 / NCTC 10854;
RA   Setubal J.C., Bowns C., Boyle S., Crasta O.R., Czar M.J., Dharmanolla C.,
RA   Gillespie J.J., Kenyon R.W., Lu J., Mane S., Mohapatra S., Nagrani S.,
RA   Purkayastha A., Rajasimha H.K., Shallom J.M., Shallom S., Shukla M.,
RA   Snyder E.E., Sobral B.W., Wattam A.R., Will R., Williams K., Yoo H.,
RA   Bruce D., Detter C., Munk C., Brettin T.S.;
RT   "Brucella canis ATCC 23365 whole genome shotgun sequencing project.";
RL   Submitted (OCT-2007) 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; CP000872; ABX63137.1; -; Genomic_DNA.
DR   AlphaFoldDB; A9M9U2; -.
DR   SMR; A9M9U2; -.
DR   EnsemblBacteria; ABX63137; ABX63137; BCAN_A2154.
DR   KEGG; bcs:BCAN_A2154; -.
DR   HOGENOM; CLU_016734_3_1_5; -.
DR   OMA; HGMKSYF; -.
DR   UniPathway; UPA00035; UER00044.
DR   PRO; PR:A9M9U2; -.
DR   Proteomes; UP000001385; Chromosome I.
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..406
FT                   /note="Tryptophan synthase beta chain"
FT                   /id="PRO_1000076381"
FT   MOD_RES         99
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00133"
SQ   SEQUENCE   406 AA;  43571 MW;  5DC87B86C3CDFFA1 CRC64;
     MNKPVAPNSY KTGPDEEGMF GIFGGRFVAE TLMPLILELQ QAYETAKNDP EFKAELNALS
     TFYAGRPSKL YYAEGLSKHL GGAKIYFKRE DLNHTGSHKI NNCLGQILLA KRMGKTRIIA
     ETGAGQHGVA SATVAARFGL PCIVYMGATD VERQKPNVFR MKLLGAEVKP VSAGNGTLKD
     AMNEALRDWV TNVEDTYYLI GTAAGPHPYP ELVRDFQSVI GTEARQQILE QEGRLPDVIV
     AAVGGGSNAI GLFHPFLDDA SVKIVGVEAG GRGLEGEEHC ASMSAGRPGV LHGNRTYLLQ
     NADGQILEGH SVSAGLDYPG VGPEHSWLKD SGRVDYVPIL DNEALDAFQL CTRTEGIIPA
     LESAHAIAQA VKMAPTMGKD KVMIVNLSGR GDKDVHTVGK LLGMDI