ID   TRPB_AGRVS              Reviewed;         406 AA.
AC   B9JXV6;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   25-MAY-2022, entry version 67.
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=Avi_0020;
OS   Agrobacterium vitis (strain S4 / ATCC BAA-846) (Rhizobium vitis (strain
OS   S4)).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Rhizobiaceae; Rhizobium/Agrobacterium group; Agrobacterium.
OX   NCBI_TaxID=311402;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=S4 / ATCC BAA-846;
RX   PubMed=19251847; DOI=10.1128/jb.01779-08;
RA   Slater S.C., Goldman B.S., Goodner B., Setubal J.C., Farrand S.K.,
RA   Nester E.W., Burr T.J., Banta L., Dickerman A.W., Paulsen I., Otten L.,
RA   Suen G., Welch R., Almeida N.F., Arnold F., Burton O.T., Du Z., Ewing A.,
RA   Godsy E., Heisel S., Houmiel K.L., Jhaveri J., Lu J., Miller N.M.,
RA   Norton S., Chen Q., Phoolcharoen W., Ohlin V., Ondrusek D., Pride N.,
RA   Stricklin S.L., Sun J., Wheeler C., Wilson L., Zhu H., Wood D.W.;
RT   "Genome sequences of three Agrobacterium biovars help elucidate the
RT   evolution of multichromosome genomes in bacteria.";
RL   J. Bacteriol. 191:2501-2511(2009).
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; CP000633; ACM34986.1; -; Genomic_DNA.
DR   RefSeq; WP_012654516.1; NC_011989.1.
DR   AlphaFoldDB; B9JXV6; -.
DR   SMR; B9JXV6; -.
DR   STRING; 311402.Avi_0020; -.
DR   EnsemblBacteria; ACM34986; ACM34986; Avi_0020.
DR   KEGG; avi:Avi_0020; -.
DR   eggNOG; COG0133; Bacteria.
DR   HOGENOM; CLU_016734_3_1_5; -.
DR   OMA; HGMKSYF; -.
DR   OrthoDB; 912282at2; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000001596; 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..406
FT                   /note="Tryptophan synthase beta chain"
FT                   /id="PRO_1000198736"
FT   MOD_RES         99
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00133"
SQ   SEQUENCE   406 AA;  44030 MW;  42801AD5AF2119FE CRC64;
     MNQNPIPNSF RSGPDEDGRF GIFGGRFVAE TLMPLILDLQ AEWENAKTDP SFKAELDHLN
     THYTGRPSPL YFAERLTAEL GGAKIYFKRD ELNHTGSHKI NNCLGQILLA KRMGKTRIIA
     ETGAGQHGVA SATVAARFGL PCIVYMGATD VERQAPNVFR MKLLGAEVRP VSSGHGTLKD
     AMNEALRDWV TNVDETYYMI GTAAGPHPYP EMVREFQSVI GKESREQMMA AEGRLPDMLV
     AAVGGGSNAI GLFHPFLDDE SVRMIGVEAG GKGLDGNEHC ASLTAGSPGV LHGNRTYLLQ
     DSDGQIKDGH SISAGLDYPG IGPEHSWLKD IGRVEYVPIM DTEALEAFQL LTRTEGIIPA
     LEPSHALAEV MKRAPKMGKD EIILMNLCGR GDKDIFTVGK ILGMGL