ID   TRPB_SHEDO              Reviewed;         401 AA.
AC   Q12LE2;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   22-AUG-2006, sequence version 1.
DT   25-MAY-2022, entry version 99.
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=Sden_2454;
OS   Shewanella denitrificans (strain OS217 / ATCC BAA-1090 / DSM 15013).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales;
OC   Shewanellaceae; Shewanella.
OX   NCBI_TaxID=318161;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=OS217 / ATCC BAA-1090 / DSM 15013;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Brettin T., Bruce D., Han C., Tapia R., Gilna P., Kiss H., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Lykidis A., Richardson P.;
RT   "Complete sequence of Shewanella denitrificans OS217.";
RL   Submitted (MAR-2006) 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; CP000302; ABE55734.1; -; Genomic_DNA.
DR   RefSeq; WP_011496885.1; NC_007954.1.
DR   AlphaFoldDB; Q12LE2; -.
DR   SMR; Q12LE2; -.
DR   STRING; 318161.Sden_2454; -.
DR   EnsemblBacteria; ABE55734; ABE55734; Sden_2454.
DR   KEGG; sdn:Sden_2454; -.
DR   eggNOG; COG0133; Bacteria.
DR   HOGENOM; CLU_016734_3_1_6; -.
DR   OMA; HGMKSYF; -.
DR   OrthoDB; 912282at2; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000001982; 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..401
FT                   /note="Tryptophan synthase beta chain"
FT                   /id="PRO_1000018388"
FT   MOD_RES         88
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00133"
SQ   SEQUENCE   401 AA;  43156 MW;  CFA329AEE9732334 CRC64;
     MTELKLDPYF GEYGGMYVPQ ILVPALKQLE SAFVDAQQDP AFQAEFTDLL KNYAGRPTAL
     TLTRNLSPNP LVKIYLKRED LLHGGAHKTN QVLGQALLAK RMGKKEIIAE TGAGQHGVAT
     ALACALLGLK CKVYMGAKDV ERQSPNVFRM KLMGAEVIPV TSGSATLKDA CNEAMRDWSA
     SYDKAHYLLG TAAGPHPFPT IVREFQRMIG EETKQQILEK EGRLPDAVIA CVGGGSNAIG
     MFADFIDEPS VELIGVEPAG KGIDTPMHGA PLKHGKTGIF FGMKAPLMQD RDGQIEESYS
     VSAGLDFPSV GPQHAHLNAI GRARYESATD DEALAMFQQL ARCEGIIPAL ESAHALAYAV
     KLAKTATKET ILVVNLSGRG DKDIFTVSDI LAAKEQESGN D