ID A3X8Z1_9RHOB Unreviewed; 462 AA.
AC A3X8Z1;
DT 03-APR-2007, integrated into UniProtKB/TrEMBL.
DT 03-APR-2007, 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 ORFNames=MED193_08933 {ECO:0000313|EMBL:EAQ45766.1};
OS Roseobacter sp. MED193.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Roseobacteraceae; Roseobacter.
OX NCBI_TaxID=314262 {ECO:0000313|EMBL:EAQ45766.1, ECO:0000313|Proteomes:UP000005943};
RN [1] {ECO:0000313|EMBL:EAQ45766.1, ECO:0000313|Proteomes:UP000005943}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MED193 {ECO:0000313|EMBL:EAQ45766.1,
RC ECO:0000313|Proteomes:UP000005943};
RA Pinhassi J., Pedros-Alio C., Ferriera S., Johnson J., Kravitz S.,
RA Halpern A., Remington K., Beeson K., Tran B., Rogers Y.-H., Friedman R.,
RA Venter J.C.;
RL Submitted (JAN-2006) to the EMBL/GenBank/DDBJ databases.
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}.
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:EAQ45766.1}.
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DR EMBL; AANB01000004; EAQ45766.1; -; Genomic_DNA.
DR RefSeq; WP_009809305.1; NZ_CH902583.1.
DR AlphaFoldDB; A3X8Z1; -.
DR STRING; 314262.MED193_08933; -.
DR eggNOG; COG0498; Bacteria.
DR HOGENOM; CLU_015170_1_0_5; -.
DR OrthoDB; 9763107at2; -.
DR UniPathway; UPA00050; UER00065.
DR Proteomes; UP000005943; Unassembled WGS sequence.
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:EAQ45766.1};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898,
KW ECO:0000256|PIRSR:PIRSR604450-51};
KW Threonine biosynthesis {ECO:0000256|ARBA:ARBA00022697}.
FT DOMAIN 2..80
FT /note="Threonine synthase N-terminal"
FT /evidence="ECO:0000259|Pfam:PF14821"
FT DOMAIN 101..393
FT /note="Tryptophan synthase beta chain-like PALP"
FT /evidence="ECO:0000259|Pfam:PF00291"
FT MOD_RES 112
FT /note="N6-(pyridoxal phosphate)lysine"
FT /evidence="ECO:0000256|PIRSR:PIRSR604450-51"
SQ SEQUENCE 462 AA; 50421 MW; 1CA3E2EFD9CA02F6 CRC64;
MKYISTRGQA PELTFEEAML TGLARDGGLY VPAEIPQMSR EEIAALSGLS YEETAFRVMK
PFIGDCFTDA EFRGIISRAY AGFGHAARAP LKQLAPNHFL LELFHGPTLA FKDFAMQLIG
QLFQVALERR NDRVTIAGAT SGDTGSAAME AFRGLSNVDV FILYPHGRVS EVQRRQMTTP
ADKNVHALAL DGDFDDCQAR VKDMFNHFEF RDGVKLAGVN SINIARVLAQ VVYYFSSAVS
LGAPAREVSF TVPTGNFGDI FAGYIAKQMG LPIKDLVVAT NQNDILHRCL EGKGYHKGDT
VPSISPSMDI QVSSNFERAL YFAYDKDASA VAQLMEELKA GGFEVSQGAM QALTETYKSG
RASEEETLAT IKSELAASGE LLCPHGAVGV KVAAEQRQAE VPMITLATAH PAKFPAAVEQ
ASGQYPDLPD RMADLYERDE RVTQIANDLT TIEDHIRKNI AE
//
