ID B9NPN3_9RHOB Unreviewed; 462 AA.
AC B9NPN3;
DT 24-MAR-2009, integrated into UniProtKB/TrEMBL.
DT 24-MAR-2009, sequence version 1.
DT 27-MAR-2024, entry version 48.
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:EEE37060.1};
GN ORFNames=RKLH11_896 {ECO:0000313|EMBL:EEE37060.1};
OS Rhodobacteraceae bacterium KLH11.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Paracoccaceae.
OX NCBI_TaxID=467661 {ECO:0000313|EMBL:EEE37060.1, ECO:0000313|Proteomes:UP000005135};
RN [1] {ECO:0000313|Proteomes:UP000005135}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KLH11 {ECO:0000313|Proteomes:UP000005135};
RX PubMed=21742885; DOI=10.1128/jb.05556-11;
RA Zan J., Fricke W.F., Fuqua C., Ravel J., Hill R.T.;
RT "Genome Sequence of Ruegeria sp. Strain KLH11, an N-Acylhomoserine Lactone-
RT Producing Bacterium Isolated from the Marine Sponge Mycale laxissima.";
RL J. Bacteriol. 193:5011-5012(2011).
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; DS999531; EEE37060.1; -; Genomic_DNA.
DR AlphaFoldDB; B9NPN3; -.
DR STRING; 467661.RKLH11_896; -.
DR eggNOG; COG0498; Bacteria.
DR HOGENOM; CLU_015170_1_0_5; -.
DR OrthoDB; 9763107at2; -.
DR UniPathway; UPA00050; UER00065.
DR Proteomes; UP000005135; 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:EEE37060.1};
KW Pyridoxal phosphate {ECO:0000256|ARBA:ARBA00022898,
KW ECO:0000256|PIRSR:PIRSR604450-51};
KW Reference proteome {ECO:0000313|Proteomes:UP000005135};
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 92..331
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; 50685 MW; A39583662FB86253 CRC64;
MKYISTRGQA PELTFEEAML TGLARDGGLY LPAEIPVMSQ DEIAALAGLS YEEIAFRVMW
PYVSGSFAED EFKAIIARAY EGFGHDARAP LKQLNENHFL LELFHGPTLA FKDFAMQLIG
QLFQVALKRR NDRVTIVGAT SGDTGSAAIE AFRGLDAVDV FILFPHGRVS EVQRRQMTTP
ADNNVHALAV DGDFDDCQAA LKDMFNDFDF RDGVKLAGVN SINFARVLAQ IVYYFSAAVS
LGAPQRKVSF TVPTGNFGDI FAGFLAKRMG LPIDRLVVAT NQNDILHRCL SGEGYFKGDT
IPSISPSMDI QVSSNFERAL YYAYGEDGSA VAQLMDELKN GGFNVSQGAM EALRENFDSG
RVSEDETLET IKQTLAHSAE LVCPHTAVGI KIGEEHRTTD VPMITLATAH PAKFPAAVEK
ASGEHPPLPS RMADLYERPE RVTRIANDLG ALEDHIRRHI AE
//
