ID I2B848_SHIBC Unreviewed; 399 AA.
AC I2B848;
DT 11-JUL-2012, integrated into UniProtKB/TrEMBL.
DT 11-JUL-2012, sequence version 1.
DT 27-MAR-2024, entry version 61.
DE RecName: Full=Tryptophan synthase beta chain {ECO:0000256|ARBA:ARBA00021362, ECO:0000256|HAMAP-Rule:MF_00133};
DE EC=4.2.1.20 {ECO:0000256|ARBA:ARBA00012043, ECO:0000256|HAMAP-Rule:MF_00133};
GN Name=trpB {ECO:0000256|HAMAP-Rule:MF_00133,
GN ECO:0000313|EMBL:AFJ46702.1};
GN OrderedLocusNames=EBL_c16080 {ECO:0000313|EMBL:AFJ46702.1};
OS Shimwellia blattae (strain ATCC 29907 / DSM 4481 / JCM 1650 / NBRC 105725 /
OS CDC 9005-74) (Escherichia blattae).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Shimwellia.
OX NCBI_TaxID=630626 {ECO:0000313|EMBL:AFJ46702.1, ECO:0000313|Proteomes:UP000001955};
RN [1] {ECO:0000313|EMBL:AFJ46702.1, ECO:0000313|Proteomes:UP000001955}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 29907 / DSM 4481 / JCM 1650 / NBRC 105725 / CDC 9005-74
RC {ECO:0000313|Proteomes:UP000001955};
RX PubMed=22843577; DOI=10.1128/JB.00829-12;
RA Brzuszkiewicz E., Waschkowitz T., Wiezer A., Daniel R.;
RT "Complete genome sequence of the B12-producing Shimwellia blattae strain
RT DSM 4481, isolated from a cockroach.";
RL J. Bacteriol. 194:4436-4436(2012).
CC -!- FUNCTION: The beta subunit is responsible for the synthesis of L-
CC tryptophan from indole and L-serine. {ECO:0000256|ARBA:ARBA00002786,
CC ECO:0000256|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:0000256|ARBA:ARBA00000003, ECO:0000256|HAMAP-
CC Rule:MF_00133};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933,
CC ECO:0000256|HAMAP-Rule:MF_00133};
CC -!- PATHWAY: Amino-acid biosynthesis; L-tryptophan biosynthesis; L-
CC tryptophan from chorismate: step 5/5. {ECO:0000256|ARBA:ARBA00004733,
CC ECO:0000256|HAMAP-Rule:MF_00133}.
CC -!- SUBUNIT: Tetramer of two alpha and two beta chains.
CC {ECO:0000256|ARBA:ARBA00011270, ECO:0000256|HAMAP-Rule:MF_00133}.
CC -!- SIMILARITY: Belongs to the TrpB family. {ECO:0000256|ARBA:ARBA00009982,
CC ECO:0000256|HAMAP-Rule:MF_00133}.
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DR EMBL; CP001560; AFJ46702.1; -; Genomic_DNA.
DR AlphaFoldDB; I2B848; -.
DR STRING; 630626.EBL_c16080; -.
DR KEGG; ebt:EBL_c16080; -.
DR PATRIC; fig|630626.3.peg.1552; -.
DR eggNOG; COG0133; Bacteria.
DR HOGENOM; CLU_016734_3_1_6; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000001955; 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; IPR006653; Trp_synth_b_CS.
DR InterPro; IPR006654; Trp_synth_beta.
DR InterPro; IPR023026; Trp_synth_beta/beta-like.
DR InterPro; IPR001926; TrpB-like_PALP.
DR InterPro; IPR036052; TrpB-like_PALP_sf.
DR NCBIfam; TIGR00263; trpB; 1.
DR PANTHER; PTHR48077:SF3; TRYPTOPHAN SYNTHASE; 1.
DR PANTHER; PTHR48077; TRYPTOPHAN SYNTHASE-RELATED; 1.
DR Pfam; PF00291; PALP; 1.
DR PIRSF; PIRSF001413; Trp_syn_beta; 1.
DR SUPFAM; SSF53686; Tryptophan synthase beta subunit-like PLP-dependent enzymes; 1.
DR PROSITE; PS00168; TRP_SYNTHASE_BETA; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_00133};
KW Aromatic amino acid biosynthesis {ECO:0000256|ARBA:ARBA00023141,
KW ECO:0000256|HAMAP-Rule:MF_00133};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|HAMAP-Rule:MF_00133};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898, ECO:0000256|HAMAP-
KW Rule:MF_00133}; Reference proteome {ECO:0000313|Proteomes:UP000001955};
KW Tryptophan biosynthesis {ECO:0000256|ARBA:ARBA00022822, ECO:0000256|HAMAP-
KW Rule:MF_00133}.
FT DOMAIN 55..376
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT MOD_RES 89
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00133"
SQ SEQUENCE 399 AA; 43397 MW; E9F43E744CDF1852 CRC64;
MRMTTLLNPY FGEFGGMYVP QLLMPALRQL EEAFVSAQSD PAFQQEFHDL LKNYAGRPTA
LTKCRNITAG TRTTLYLKRE DLLHGGAHKT NQVLGQALLA KRMGKTEIIA ETGAGQHGVA
SAIACALLGL KCRIYMGAKD VERQSPNVFR MRLMGAEVIP VHSGSATLKD ACNEALRDWS
GSYEKAHYML GTAAGPHPFP TIVREFQRMI GEETKAQLQE KEGRLPDAVI AAVGGGSNAI
GMFADFIDNP GVKLIGVEPA GHGIETGEHG APLKHGRVGI YFGMKSPMMQ TDEGQIEESY
SISAGLDFPS VGPQHAYLNS TGRADYVSIT DNEALDAFQT LCRHEGILPA LESSHALAYA
LKMMKQDPEK EQLLVVNLSG RGDKDIFTVY DILQARGEI
//
