TRPB_METPB
ID TRPB_METPB Reviewed; 413 AA.
AC B1ZG57;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 20-MAY-2008, sequence version 1.
DT 25-MAY-2022, entry version 94.
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=Mpop_0201;
OS Methylorubrum populi (strain ATCC BAA-705 / NCIMB 13946 / BJ001)
OS (Methylobacterium populi).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Methylobacteriaceae; Methylorubrum.
OX NCBI_TaxID=441620;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-705 / NCIMB 13946 / BJ001;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA Bruce D., Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C.,
RA Han C., Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L.,
RA Kyrpides N., Mikhailova N., Marx C., Richardson P.;
RT "Complete sequence of chromosome of Methylobacterium populi BJ001.";
RL Submitted (APR-2008) 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; CP001029; ACB78389.1; -; Genomic_DNA.
DR RefSeq; WP_012452153.1; NC_010725.1.
DR AlphaFoldDB; B1ZG57; -.
DR SMR; B1ZG57; -.
DR STRING; 441620.Mpop_0201; -.
DR EnsemblBacteria; ACB78389; ACB78389; Mpop_0201.
DR KEGG; mpo:Mpop_0201; -.
DR eggNOG; COG0133; Bacteria.
DR HOGENOM; CLU_016734_3_1_5; -.
DR OMA; HGMKSYF; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000007136; 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..413
FT /note="Tryptophan synthase beta chain"
FT /id="PRO_1000198749"
FT MOD_RES 106
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00133"
SQ SEQUENCE 413 AA; 44651 MW; 10E4F834EADB30DF CRC64;
MTLNPAPNSF RTGPDERGRF GIFGGRFVAE TLMPLILDLE KAYAEAKADP SFKADMESYG
THYIGRPSPL YYAERLTEHL RASAPAGQGA KIYFKREELN HTGSHKVNNV LGQILLARRM
GKPRIIAETG AGQHGVATAT LCARFGLKCV VYMGAVDVER QAPNVFRMKM LGAEVVPVQS
GTRTLKDAMN EALRDWVTNV ADTFYCIGTV AGPHPYPAMV RDFQSVIGIE TKQQMLALEG
RLPDSLVACI GGGSNAMGLF HPFLDDREVE IYGVEAAGHG VQSGLHAASL TGGRPGVLHG
NRTYLLMNED GQIADAHSIS AGLDYPGIGP EHAWLHEMGR VTYLSATDTE TLEAFKLCSM
LEGIIPALEP AHALSKVLEL APTKPAEHLM VMNLSGRGDK DIPQVAQIFG QTL