ID A0A1Q5ZX67_9SPHI Unreviewed; 393 AA.
AC A0A1Q5ZX67;
DT 12-APR-2017, integrated into UniProtKB/TrEMBL.
DT 12-APR-2017, sequence version 1.
DT 24-JAN-2024, entry version 21.
DE RecName: Full=Tryptophan synthase beta chain {ECO:0000256|HAMAP-Rule:MF_00133};
DE EC=4.2.1.20 {ECO:0000256|HAMAP-Rule:MF_00133};
GN Name=trpB {ECO:0000256|HAMAP-Rule:MF_00133};
GN ORFNames=RG47T_1807 {ECO:0000313|EMBL:OKS86353.1};
OS Mucilaginibacter polytrichastri.
OC Bacteria; Bacteroidota; Sphingobacteriia; Sphingobacteriales;
OC Sphingobacteriaceae; Mucilaginibacter.
OX NCBI_TaxID=1302689 {ECO:0000313|EMBL:OKS86353.1, ECO:0000313|Proteomes:UP000186720};
RN [1] {ECO:0000313|EMBL:OKS86353.1, ECO:0000313|Proteomes:UP000186720}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=RG4-7 {ECO:0000313|EMBL:OKS86353.1,
RC ECO:0000313|Proteomes:UP000186720};
RA Li Y.;
RT "Whole Genome Sequencing of Mucilaginibacter polytrichastri RG4-7(T)
RT isolated from the moss sample.";
RL Submitted (NOV-2016) 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: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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OKS86353.1}.
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DR EMBL; MPPL01000001; OKS86353.1; -; Genomic_DNA.
DR RefSeq; WP_074489059.1; NZ_MPPL01000001.1.
DR AlphaFoldDB; A0A1Q5ZX67; -.
DR STRING; 1302689.RG47T_1807; -.
DR OrthoDB; 9766131at2; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000186720; Unassembled WGS sequence.
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:UP000186720};
KW Tryptophan biosynthesis {ECO:0000256|ARBA:ARBA00022822, ECO:0000256|HAMAP-
KW Rule:MF_00133}.
FT DOMAIN 56..378
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 393 AA; 43048 MW; DB664E54F8E77162 CRC64;
MKYSVNEQGY YGDFGGAYIP EMLYPNIEEL RQQYEIITND PAYRVEFDAL LKDYVGRPSP
LYLAKRLSAK YGANIYLKRE DLNHTGSHKI NNAIGQILLA ERLGKKRIIA ETGAGQHGVA
TATVCALRGI ECVVYMGEID MERQAPNVAR MKMLGATVVP ATSGSKTLKD ATNEAMRDWI
NNPVDTHYII GSVVGPYPYP EMVARFQSII SFETKKQLLE QTGKELPDYA LACVGGGSNA
MGMFYHFLDD ESVKLIAVEA AGLGVDSGHS AATSVLGREG VLHGSRTILM QTDDGQVVEP
YSISAGLDYP GIGPQHAHLH KVKRAKYVSI TDDEALNAGL LLSQLEGIIP AIESAHAFAY
LEKMTFKPTD NVVICLSGRG DKDLDTYIKH FGY
//
