ID A0A291P9V4_9GAMM Unreviewed; 400 AA.
AC A0A291P9V4;
DT 20-DEC-2017, integrated into UniProtKB/TrEMBL.
DT 20-DEC-2017, sequence version 1.
DT 24-JAN-2024, entry version 24.
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=BEI_2668 {ECO:0000313|EMBL:ATJ83655.1};
OS Halomonas beimenensis.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Oceanospirillales;
OC Halomonadaceae; Halomonas.
OX NCBI_TaxID=475662 {ECO:0000313|EMBL:ATJ83655.1, ECO:0000313|Proteomes:UP000219993};
RN [1] {ECO:0000313|EMBL:ATJ83655.1, ECO:0000313|Proteomes:UP000219993}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NTU-111 {ECO:0000313|EMBL:ATJ83655.1,
RC ECO:0000313|Proteomes:UP000219993};
RX PubMed=29026163;
RA Chen Y.H., Lin S.S., Shyu Y.T.;
RT "Revealing the Saline Adaptation Strategies of the Halophilic Bacterium
RT Halomonas beimenensis through High-throughput Omics and Transposon
RT Mutagenesis Approaches.";
RL Sci. Rep. 7:13037-13037(2017).
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; CP021435; ATJ83655.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A291P9V4; -.
DR KEGG; hbe:BEI_2668; -.
DR OrthoDB; 9766131at2; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000219993; 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:UP000219993};
KW Tryptophan biosynthesis {ECO:0000256|ARBA:ARBA00022822, ECO:0000256|HAMAP-
KW Rule:MF_00133}.
FT DOMAIN 61..385
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT MOD_RES 95
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00133"
SQ SEQUENCE 400 AA; 43237 MW; AE8B76666F7722F1 CRC64;
MTRSAFAPLP DDAGYFGRFG GQIIPPELKR VMDEISEAYD EIRARDDFQQ ELAGLFADYV
GRPSPIFHAR RLSERLGGAQ IHLKREDLNH TGAHKINHCL GEALLAKFMG KTKVIAETGA
GQHGVALATA CALVGIPCEI HMGQVDIEKE HPNVTKMKIL GARLVPVTRG TATLKDAVDS
AFEEYLKDPR NFLYAIGSVV GPHPFPKMVR DFQAIIGREA REQFQERHGR LPDQVAACVG
GGSNAIGMFT AFLDDEGVRL VGVEPAGEGL DTPRHSATLT LGQPGEIHGM ACYVLEDEAG
NPLPVHSIAS GLDYPGVGPQ HSYLKEHGRV DYVTATDDEC LDAFLTLSRV EGIIPALESA
HAVAWAMRTA PTLGPDQHLL INLSGRGDKD ADYVAARLSL
//
