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TRPB_PROMH
ID   TRPB_PROMH              Reviewed;         396 AA.
AC   B4EWH7;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   23-SEP-2008, sequence version 1.
DT   25-MAY-2022, entry version 83.
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=PMI1347;
OS   Proteus mirabilis (strain HI4320).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Morganellaceae; Proteus.
OX   NCBI_TaxID=529507;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HI4320;
RX   PubMed=18375554; DOI=10.1128/jb.01981-07;
RA   Pearson M.M., Sebaihia M., Churcher C., Quail M.A., Seshasayee A.S.,
RA   Luscombe N.M., Abdellah Z., Arrosmith C., Atkin B., Chillingworth T.,
RA   Hauser H., Jagels K., Moule S., Mungall K., Norbertczak H.,
RA   Rabbinowitsch E., Walker D., Whithead S., Thomson N.R., Rather P.N.,
RA   Parkhill J., Mobley H.L.T.;
RT   "Complete genome sequence of uropathogenic Proteus mirabilis, a master of
RT   both adherence and motility.";
RL   J. Bacteriol. 190:4027-4037(2008).
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; AM942759; CAR42849.1; -; Genomic_DNA.
DR   RefSeq; WP_004243066.1; NC_010554.1.
DR   AlphaFoldDB; B4EWH7; -.
DR   SMR; B4EWH7; -.
DR   STRING; 529507.PMI1347; -.
DR   EnsemblBacteria; CAR42849; CAR42849; PMI1347.
DR   GeneID; 6801562; -.
DR   KEGG; pmr:PMI1347; -.
DR   eggNOG; COG0133; Bacteria.
DR   HOGENOM; CLU_016734_3_1_6; -.
DR   OMA; HGMKSYF; -.
DR   UniPathway; UPA00035; UER00044.
DR   Proteomes; UP000008319; 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..396
FT                   /note="Tryptophan synthase beta chain"
FT                   /id="PRO_1000095803"
FT   MOD_RES         86
FT                   /note="N6-(pyridoxal phosphate)lysine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00133"
SQ   SEQUENCE   396 AA;  43041 MW;  665E46F9BDA88493 CRC64;
     MRKLNPYFGE FGGQYVPEIL IPALDQLEQA FIDAQNDPSF QQEFQDLLKN YAGRPTALTL
     CRNLTQGTRT RLYLKREDLL HGGAHKTNQV LGQALLAKRM GKTEIIAETG AGQHGVATAL
     ACALLNMKCR IYMGAKDVER QSPNVFRMRL MGAEVIPVHS GSSTLKDACN EALRDWSGCY
     ERAHYLLGTA AGPHPYPTIV REFQRMIGDE AKAQILAREG RLPDAVIACI GGGSNAIGLF
     ASFIPETSVQ LIGVEPAGKG IETGEHGAPL KHGKLGIYFG MKSPIMQTEE GQIEESYSIS
     AGLDFPSVGP QHAHLNSIGR ADYVSVTDDE AIEAFKTLSR REGIIPALES SHALAYALKL
     IAQNPDKEQL LIVNLSGRGD KDIFTVNDIL AARGEI
 
 
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