ID B7N7M9_ECOLU Unreviewed; 428 AA.
AC B7N7M9;
DT 10-FEB-2009, integrated into UniProtKB/TrEMBL.
DT 10-FEB-2009, sequence version 1.
DT 27-MAR-2024, entry version 67.
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:CAR11229.1};
GN OrderedLocusNames=ECUMN_0004 {ECO:0000313|EMBL:CAR11229.1};
OS Escherichia coli O17:K52:H18 (strain UMN026 / ExPEC).
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Escherichia.
OX NCBI_TaxID=585056 {ECO:0000313|EMBL:CAR11229.1, ECO:0000313|Proteomes:UP000007097};
RN [1] {ECO:0000313|Proteomes:UP000007097}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UMN026 / ExPEC {ECO:0000313|Proteomes:UP000007097};
RX PubMed=19165319; DOI=10.1371/journal.pgen.1000344;
RA Touchon M., Hoede C., Tenaillon O., Barbe V., Baeriswyl S., Bidet P.,
RA Bingen E., Bonacorsi S., Bouchier C., Bouvet O., Calteau A., Chiapello H.,
RA Clermont O., Cruveiller S., Danchin A., Diard M., Dossat C., Karoui M.E.,
RA Frapy E., Garry L., Ghigo J.M., Gilles A.M., Johnson J., Le Bouguenec C.,
RA Lescat M., Mangenot S., Martinez-Jehanne V., Matic I., Nassif X., Oztas S.,
RA Petit M.A., Pichon C., Rouy Z., Ruf C.S., Schneider D., Tourret J.,
RA Vacherie B., Vallenet D., Medigue C., Rocha E.P.C., Denamur E.;
RT "Organised genome dynamics in the Escherichia coli species results in
RT highly diverse adaptive paths.";
RL PLoS Genet. 5:E1000344-E1000344(2009).
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; CU928163; CAR11229.1; -; Genomic_DNA.
DR RefSeq; WP_000781055.1; NC_011751.1.
DR RefSeq; YP_002410784.1; NC_011751.1.
DR AlphaFoldDB; B7N7M9; -.
DR STRING; 585056.ECUMN_0004; -.
DR KEGG; eum:ECUMN_0004; -.
DR PATRIC; fig|585056.7.peg.188; -.
DR HOGENOM; CLU_015170_0_0_6; -.
DR UniPathway; UPA00050; UER00065.
DR Proteomes; UP000007097; 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 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:CAR11229.1};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898,
KW ECO:0000256|PIRSR:PIRSR604450-51};
KW Threonine biosynthesis {ECO:0000256|ARBA:ARBA00022697}.
FT DOMAIN 8..80
FT /note="Threonine synthase N-terminal"
FT /evidence="ECO:0000259|Pfam:PF14821"
FT DOMAIN 97..367
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 428 AA; 47133 MW; 021388CDA20C8E9D CRC64;
MKLYNLKDHN EQVSFAQAVT QGLGKNQGLF FPHDLPEFSL TEIDEMLKLD FVTRSAKILS
AFIGDEIPQE ILEERVRAAF AFPAPVANVE SDVGCLELFH GPTLAFKDFG GRFMAQMLTH
IAGDKPVTIL TATSGDTGAA VAHAFYGLPN VKVVILYPRG KISPLQEKLF CTLGGNIETV
AIDGDFDACQ ALVKQAFDDE ELKVALGLNS ANSINISRLL AQICYYFEAV AQLPQEARNQ
LVVSVPSGNF GDLTAGLLAK SLGLPVKRFI AATNVNDTVP RFLHDGQWLP KATQATLSNA
MDVSQPNNWP RVEELFRRKI WQLKELGYAA VDDETTQQTM RELKELGYTS EPHAAVAYRA
LRDQLHPGEY GLFLGTAHPA KFKESVEAIL GETLDLPKEL AERADLPLLS HNLPADFAAL
RKLMMNHQ
//
