TRPB_STAA1
ID TRPB_STAA1 Reviewed; 404 AA.
AC A7X238;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 23-OCT-2007, sequence version 1.
DT 25-MAY-2022, entry version 82.
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=SAHV_1360;
OS Staphylococcus aureus (strain Mu3 / ATCC 700698).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC Staphylococcus.
OX NCBI_TaxID=418127;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Mu3 / ATCC 700698;
RX PubMed=17954695; DOI=10.1128/aac.00534-07;
RA Neoh H.-M., Cui L., Yuzawa H., Takeuchi F., Matsuo M., Hiramatsu K.;
RT "Mutated response regulator graR is responsible for phenotypic conversion
RT of Staphylococcus aureus from heterogeneous vancomycin-intermediate
RT resistance to vancomycin-intermediate resistance.";
RL Antimicrob. Agents Chemother. 52:45-53(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; AP009324; BAF78243.1; -; Genomic_DNA.
DR RefSeq; WP_001041351.1; NC_009782.1.
DR AlphaFoldDB; A7X238; -.
DR SMR; A7X238; -.
DR KEGG; saw:SAHV_1360; -.
DR HOGENOM; CLU_016734_3_1_9; -.
DR OMA; HGMKSYF; -.
DR UniPathway; UPA00035; UER00044.
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..404
FT /note="Tryptophan synthase beta chain"
FT /id="PRO_1000018404"
FT MOD_RES 94
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00133"
SQ SEQUENCE 404 AA; 43907 MW; 474B792208114378 CRC64;
MNKQIQTEAD ELGFFGEYGG QYVPETLMPA IIELKKAYKE AKADPEFQRE LEYYLSEYVG
RATPLTYAAS YTESLGGAKI YLKREDLNHT GAHKINNALG QALLAKRMGK KKLVAETGAG
QHGVASATVA ALFDMELVVF MGSEDIKRQQ LNVFRMELLG AKVVAVEEGQ GTLSDAVNKA
LQYWVSHVDD THYLLGSALG PDPFPTIVRD FQSVIGKEIK SQILKKEGRL PDAIVACIGG
GSNAIGTFYP FIKDDVALYG VEAAGQGEDT DKHALAIGKG SPGVLHGTKM YLIQDEGGQV
QLAHSISAGL DYPGIGPEHS YYHDIGRVTF ENASDTQAMN ALINFTKHEG IIPAIESAHA
LSYVERLAPT MSKEDIIVVT ISGRGDKDME TIRQYMAERG LAND