ID A0A1E8GMX3_9LACT Unreviewed; 400 AA.
AC A0A1E8GMX3;
DT 15-FEB-2017, integrated into UniProtKB/TrEMBL.
DT 15-FEB-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=BG261_03160 {ECO:0000313|EMBL:OFI49595.1};
OS Floricoccus tropicus.
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Streptococcaceae;
OC Floricoccus.
OX NCBI_TaxID=1859473 {ECO:0000313|EMBL:OFI49595.1, ECO:0000313|Proteomes:UP000178622};
RN [1] {ECO:0000313|Proteomes:UP000178622}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DF1 {ECO:0000313|Proteomes:UP000178622};
RA Chuah L.-O., Yap K.-P., Thong K.L., Liong M.T., Ahmad R., Rusul G.;
RT "Draft genome sequence of a novel species of the family Streptococcaceae
RT isolated from flowers.";
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}.
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:OFI49595.1}.
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DR EMBL; MKIR01000012; OFI49595.1; -; Genomic_DNA.
DR RefSeq; WP_070792110.1; NZ_MKIR01000012.1.
DR AlphaFoldDB; A0A1E8GMX3; -.
DR STRING; 1859473.BG261_03160; -.
DR OrthoDB; 9766131at2; -.
DR UniPathway; UPA00035; UER00044.
DR Proteomes; UP000178622; 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:UP000178622};
KW Tryptophan biosynthesis {ECO:0000256|ARBA:ARBA00022822, ECO:0000256|HAMAP-
KW Rule:MF_00133}.
FT DOMAIN 58..381
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT MOD_RES 91
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00133"
SQ SEQUENCE 400 AA; 43163 MW; A3E655C8448F2F9B CRC64;
MTYSNPDAKG FYGEFGGQFI PESLMAAVKE LQETYEESKN DPEFQKEFDD LLKNYVGREN
PLYYAKNLTE YAGGAKIYLK REDLNHTGAH KINNALGQVL LAKKMGKNKI IAETGAGQHG
VATATAAALF GMECTIYMGA EDVKRQALNV FRIELLGGKV VSVTDGSSVL KDAVNAALRA
WATQVEDTHY VIGSALGPHP YPEIVRDYQS VIGREARKQI LEAEGKLPDA LVACVGGGSN
AIGLFYPFVD DEEVAFYGVE AAGLGLDTNE HAATITKGKP GVLHGTLMDI LQDENGQILE
AYSISAGLDY PGLGPEHCHF NETGRAKYES ATDKEALEAF VLLSQKEGII PALESSHAVA
YAIKLAKELG PDATMIVNLS GRGDKDVDQV RKILAEKGEN
//
