ID C1DBX4_LARHH Unreviewed; 449 AA.
AC C1DBX4;
DT 26-MAY-2009, integrated into UniProtKB/TrEMBL.
DT 26-MAY-2009, sequence version 1.
DT 27-MAR-2024, entry version 83.
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 OrderedLocusNames=LHK_02546 {ECO:0000313|EMBL:ACO75527.1};
OS Laribacter hongkongensis (strain HLHK9).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Neisseriales;
OC Aquaspirillaceae; Laribacter.
OX NCBI_TaxID=557598 {ECO:0000313|EMBL:ACO75527.1, ECO:0000313|Proteomes:UP000002010};
RN [1] {ECO:0000313|EMBL:ACO75527.1, ECO:0000313|Proteomes:UP000002010}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HLHK9 {ECO:0000313|EMBL:ACO75527.1,
RC ECO:0000313|Proteomes:UP000002010};
RX PubMed=19283063; DOI=10.1371/journal.pgen.1000416;
RA Woo P.C., Lau S.K., Tse H., Teng J.L., Curreem S.O., Tsang A.K., Fan R.Y.,
RA Wong G.K., Huang Y., Loman N.J., Snyder L.A., Cai J.J., Huang J.D., Mak W.,
RA Pallen M.J., Lok S., Yuen K.Y.;
RT "The complete genome and proteome of Laribacter hongkongensis reveal
RT potential mechanisms for adaptations to different temperatures and
RT habitats.";
RL PLoS Genet. 5:E1000416-E1000416(2009).
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; CP001154; ACO75527.1; -; Genomic_DNA.
DR RefSeq; WP_012698013.1; NC_012559.1.
DR AlphaFoldDB; C1DBX4; -.
DR STRING; 557598.LHK_02546; -.
DR GeneID; 75110576; -.
DR KEGG; lhk:LHK_02546; -.
DR eggNOG; COG1350; Bacteria.
DR HOGENOM; CLU_042858_1_0_4; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000002010; Chromosome.
DR GO; GO:0030170; F:pyridoxal phosphate binding; IEA:InterPro.
DR GO; GO:0004834; F:tryptophan synthase activity; IEA:UniProtKB-UniRule.
DR Gene3D; 3.40.50.1100; -; 2.
DR HAMAP; MF_00133; Trp_synth_beta; 1.
DR InterPro; IPR006316; Trp_synth_b-like.
DR InterPro; IPR006653; Trp_synth_b_CS.
DR InterPro; IPR023026; Trp_synth_beta/beta-like.
DR InterPro; IPR001926; TrpB-like_PALP.
DR InterPro; IPR036052; TrpB-like_PALP_sf.
DR NCBIfam; TIGR01415; trpB_rel; 1.
DR PANTHER; PTHR48077:SF6; TRYPTOPHAN SYNTHASE BETA CHAIN; 1.
DR PANTHER; PTHR48077; TRYPTOPHAN SYNTHASE-RELATED; 1.
DR Pfam; PF00291; PALP; 1.
DR PIRSF; PIRSF001413; Trp_syn_beta; 1.
DR PIRSF; PIRSF500824; TrpB_prok; 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:UP000002010};
KW Tryptophan biosynthesis {ECO:0000256|ARBA:ARBA00022822, ECO:0000256|HAMAP-
KW Rule:MF_00133}.
FT DOMAIN 75..411
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT MOD_RES 111
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00133"
SQ SEQUENCE 449 AA; 48776 MW; 22D5E9F9A5F86A3B CRC64;
MNQTKFLLPE SEIPTHWYNV VADMPNKPAP VLGPDGQPIS PDALSAIFVD SLIEQEVSTE
RWIPIPEPVR EIYRLWRPAP LFRAHRLEAE LGTPARIYYK YEGVSPAGSH KLNSAIAQAY
YNREAGIRRM TTETGAGQWG CSLALAGQMF GIDIRVFMVK VSYQQKPFRR SMMQTWGAEV
LASPSPLTAA GRAALEADDN NPGSLGLAIA EAVEEAASRS DTTYGLGSVL NHVLLHQTVI
GLEAKKQFEL AGDYPDMIFA PCGGGSNFGG VAFPFFADKA AGRNVRLVAV EPASCPSLTR
GHYSYDYGDT AGLTPLMKQY TLGHDFMPPS IHAGGLRYHG ASTLVSQLVH EGLVEAVAVP
QLATFEAGVT FARTEGIVPA PESCHGIRAV IDEARRCTES GESKALFFNL SGHGHFDMAS
YDKYLAGDLE DYVYPEEAIR AALARLPRV
//
