ID E1WL32_BACF6 Unreviewed; 433 AA.
AC E1WL32;
DT 30-NOV-2010, integrated into UniProtKB/TrEMBL.
DT 30-NOV-2010, sequence version 1.
DT 27-MAR-2024, entry version 56.
DE RecName: Full=Threonine synthase {ECO:0000256|ARBA:ARBA00018679};
DE EC=4.2.3.1 {ECO:0000256|ARBA:ARBA00013028};
GN Name=thrC {ECO:0000313|EMBL:CBW21195.1};
GN OrderedLocusNames=BF638R_0607 {ECO:0000313|EMBL:CBW21195.1};
OS Bacteroides fragilis (strain 638R).
OC Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Bacteroidaceae;
OC Bacteroides.
OX NCBI_TaxID=862962 {ECO:0000313|EMBL:CBW21195.1, ECO:0000313|Proteomes:UP000008560};
RN [1] {ECO:0000313|EMBL:CBW21195.1, ECO:0000313|Proteomes:UP000008560}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=638R {ECO:0000313|EMBL:CBW21195.1,
RC ECO:0000313|Proteomes:UP000008560};
RX PubMed=20829291; DOI=10.1099/mic.0.042978-0;
RA Patrick S., Blakely G.W., Houston S., Moore J., Abratt V.R., Bertalan M.,
RA Cerdeno-Tarraga A.M., Quail M.A., Corton N., Corton C., Bignell A.,
RA Barron A., Clark L., Bentley S.D., Parkhill J.;
RT "Twenty-eight divergent polysaccharide loci specifying within- and amongst-
RT strain capsule diversity in three strains of Bacteroides fragilis.";
RL Microbiology 156:3255-3269(2010).
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + O-phospho-L-homoserine = L-threonine + phosphate;
CC Xref=Rhea:RHEA:10840, ChEBI:CHEBI:15377, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:57590, ChEBI:CHEBI:57926; EC=4.2.3.1;
CC Evidence={ECO:0000256|ARBA:ARBA00000051};
CC -!- COFACTOR:
CC Name=pyridoxal 5'-phosphate; Xref=ChEBI:CHEBI:597326;
CC Evidence={ECO:0000256|ARBA:ARBA00001933,
CC ECO:0000256|PIRSR:PIRSR604450-51};
CC -!- PATHWAY: Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine
CC from L-aspartate: step 5/5. {ECO:0000256|ARBA:ARBA00004979}.
CC -!- SIMILARITY: Belongs to the threonine synthase family.
CC {ECO:0000256|ARBA:ARBA00005517}.
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DR EMBL; FQ312004; CBW21195.1; -; Genomic_DNA.
DR RefSeq; WP_008658391.1; NC_016776.1.
DR AlphaFoldDB; E1WL32; -.
DR KEGG; bfg:BF638R_0607; -.
DR PATRIC; fig|862962.3.peg.624; -.
DR HOGENOM; CLU_015170_0_0_10; -.
DR UniPathway; UPA00050; UER00065.
DR Proteomes; UP000008560; Chromosome.
DR GO; GO:0030170; F:pyridoxal phosphate binding; IEA:InterPro.
DR GO; GO:0004795; F:threonine synthase activity; IEA:UniProtKB-EC.
DR GO; GO:0009088; P:threonine biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd01560; Thr-synth_2; 1.
DR Gene3D; 3.40.50.1100; -; 2.
DR Gene3D; 3.90.1380.10; Threonine synthase, N-terminal domain; 1.
DR InterPro; IPR000634; Ser/Thr_deHydtase_PyrdxlP-BS.
DR InterPro; IPR029144; Thr_synth_N.
DR InterPro; IPR037158; Thr_synth_N_sf.
DR InterPro; IPR004450; Thr_synthase-like.
DR InterPro; IPR001926; TrpB-like_PALP.
DR InterPro; IPR036052; TrpB-like_PALP_sf.
DR NCBIfam; TIGR00260; thrC; 1.
DR PANTHER; PTHR42690; THREONINE SYNTHASE FAMILY MEMBER; 1.
DR PANTHER; PTHR42690:SF1; THREONINE SYNTHASE-LIKE 2; 1.
DR Pfam; PF00291; PALP; 1.
DR Pfam; PF14821; Thr_synth_N; 1.
DR SUPFAM; SSF53686; Tryptophan synthase beta subunit-like PLP-dependent enzymes; 1.
DR PROSITE; PS00165; DEHYDRATASE_SER_THR; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000313|EMBL:CBW21195.1};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898,
KW ECO:0000256|PIRSR:PIRSR604450-51};
KW Threonine biosynthesis {ECO:0000256|ARBA:ARBA00022697}.
FT DOMAIN 2..78
FT /note="Threonine synthase N-terminal"
FT /evidence="ECO:0000259|Pfam:PF14821"
FT DOMAIN 95..376
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT MOD_RES 107
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|PIRSR:PIRSR604450-51"
SQ SEQUENCE 433 AA; 47886 MW; 925828D47B0488A4 CRC64;
MKYYSTNKQA PLASLEEAVV KGLASDKGLF MPMTIKPLPQ EFYDEIENLS FREIAYRVAD
VFFGEDVPAE TLKEIVYDTL NFDVPLVPVK ENIYSLELFH GPTLAFKDVG GRFMARLLGY
FIRKEGRKQV NVLVATSGDT GSAVANGFLG VEGIHVYVLY PKGKVSEIQE KQFTTLGRNI
TALEVDGTFD DCQALVKAAF MDQELNEQLL LTSANSINVA RFLPQAFYYF YAYAQLKKAG
RAENVVICVP SGNFGNITAG LFGKKMGLPV RRFIAANNKN DIFYQYLQTG QYNPRPSVAT
IANAMDVGDP SNFARVLDLY GGSHAAIAAE ISGTTYTDEQ IRESVKACWQ QTGYLLDPHG
ACGYRALEEG LQPGETGVFL ETAHPAKFLQ TVESIIGTEV EIPAKLRAFM KGEKKSLPMT
KEFADFKSYL LGK
//
