ID A0A1D8FYZ8_9ACTN Unreviewed; 427 AA.
AC A0A1D8FYZ8;
DT 18-JAN-2017, integrated into UniProtKB/TrEMBL.
DT 18-JAN-2017, sequence version 1.
DT 24-JAN-2024, entry version 28.
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 ECO:0000313|EMBL:AOT58411.1};
GN ORFNames=A4G23_01221 {ECO:0000313|EMBL:AOT58411.1};
OS Streptomyces rubrolavendulae.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=285473 {ECO:0000313|EMBL:AOT58411.1, ECO:0000313|Proteomes:UP000095349};
RN [1] {ECO:0000313|EMBL:AOT58411.1, ECO:0000313|Proteomes:UP000095349}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MJM4426 {ECO:0000313|EMBL:AOT58411.1,
RC ECO:0000313|Proteomes:UP000095349};
RA Kim J.-G.;
RT "Streptomyces rubrolavendulae MJM4426 Genome sequencing and assembly.";
RL Submitted (SEP-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}.
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DR EMBL; CP017316; AOT58411.1; -; Genomic_DNA.
DR RefSeq; WP_069975979.1; NZ_CP017316.1.
DR AlphaFoldDB; A0A1D8FYZ8; -.
DR STRING; 285473.A4G23_01221; -.
DR KEGG; srn:A4G23_01221; -.
DR PATRIC; fig|285473.5.peg.1270; -.
DR OrthoDB; 9766131at2; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000095349; 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:UP000095349};
KW Tryptophan biosynthesis {ECO:0000256|ARBA:ARBA00022822, ECO:0000256|HAMAP-
KW Rule:MF_00133}.
FT DOMAIN 66..390
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT MOD_RES 100
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00133"
SQ SEQUENCE 427 AA; 45253 MW; 37C68CA5425DA087 CRC64;
MSSQFFRPDP EGRVPDAEGY FGAFGGKFIP EALVAAVDEV AVEYEKAKSD PEFARELDDL
LAHYTGRPSA LTEVPRFAEH AGGARIFLKR EDLNHTGSHK INNVLGQALL TRRMGKTRVI
AETGAGQHGV ATATACALFG LDCTIYMGEV DTRRQALNVA RMRILGAEVV AVKSGSRTLK
DAINEAFRDW VANVDSTHYL FGTVAGPHPF PAMVRDFHRV IGVEARRQLL ERAGRLPDAA
VACVGGGSNA IGLFHAFLPD EGVRLVGCEP AGHGVESGEH AATLTAGEPG ILHGSRSYVL
QDDEGQITEP YSISAGLDYP GIGPEHAHLK DTGRAEYRAV TDDAAMGALR LLSRTEGIIP
AIESAHALAG ALEVGRELGQ GGLIVVNLSG RGDKDMDTAA RYFGLYDTDA EVAADGAGAA
EIEGDAK
//
