ID A0A1Y1SAQ4_9GAMM Unreviewed; 313 AA.
AC A0A1Y1SAQ4;
DT 30-AUG-2017, integrated into UniProtKB/TrEMBL.
DT 30-AUG-2017, sequence version 1.
DT 24-JAN-2024, entry version 20.
DE RecName: Full=Homoserine kinase {ECO:0000256|HAMAP-Rule:MF_00301};
DE Short=HK {ECO:0000256|HAMAP-Rule:MF_00301};
DE Short=HSK {ECO:0000256|HAMAP-Rule:MF_00301};
DE EC=2.7.1.39 {ECO:0000256|HAMAP-Rule:MF_00301};
GN Name=thrB {ECO:0000256|HAMAP-Rule:MF_00301};
GN ORFNames=ATO7_14838 {ECO:0000313|EMBL:ORE85508.1};
OS Oceanococcus atlanticus.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Chromatiales;
OC Ectothiorhodospiraceae; Oceanococcus.
OX NCBI_TaxID=1317117 {ECO:0000313|EMBL:ORE85508.1, ECO:0000313|Proteomes:UP000192342};
RN [1] {ECO:0000313|EMBL:ORE85508.1, ECO:0000313|Proteomes:UP000192342}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=22II-S10r2 {ECO:0000313|EMBL:ORE85508.1,
RC ECO:0000313|Proteomes:UP000192342};
RA Lai Q., Li G., Shao Z.;
RT "Oceanococcus atlanticus 22II-S10r2 Genome Sequencing.";
RL Submitted (APR-2013) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-homoserine = ADP + H(+) + O-phospho-L-homoserine;
CC Xref=Rhea:RHEA:13985, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:57476, ChEBI:CHEBI:57590, ChEBI:CHEBI:456216;
CC EC=2.7.1.39; Evidence={ECO:0000256|HAMAP-Rule:MF_00301};
CC -!- PATHWAY: Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine
CC from L-aspartate: step 4/5. {ECO:0000256|HAMAP-Rule:MF_00301}.
CC -!- SIMILARITY: Belongs to the pseudomonas-type ThrB family.
CC {ECO:0000256|ARBA:ARBA00038240, ECO:0000256|HAMAP-Rule:MF_00301}.
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:ORE85508.1}.
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DR EMBL; AQQV01000004; ORE85508.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1Y1SAQ4; -.
DR STRING; 1317117.ATO7_14838; -.
DR OrthoDB; 9777460at2; -.
DR UniPathway; UPA00050; UER00064.
DR Proteomes; UP000192342; Unassembled WGS sequence.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0004413; F:homoserine kinase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR GO; GO:0009088; P:threonine biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd05153; HomoserineK_II; 1.
DR Gene3D; 3.90.1200.10; -; 1.
DR HAMAP; MF_00301; Homoser_kinase_2; 1.
DR InterPro; IPR002575; Aminoglycoside_PTrfase.
DR InterPro; IPR005280; Homoserine_kinase_II.
DR InterPro; IPR011009; Kinase-like_dom_sf.
DR NCBIfam; TIGR00938; thrB_alt; 1.
DR PANTHER; PTHR21064:SF6; APH DOMAIN-CONTAINING PROTEIN; 1.
DR PANTHER; PTHR21064; UNCHARACTERIZED; 1.
DR Pfam; PF01636; APH; 1.
DR SUPFAM; SSF56112; Protein kinase-like (PK-like); 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605, ECO:0000256|HAMAP-
KW Rule:MF_00301}; ATP-binding {ECO:0000256|HAMAP-Rule:MF_00301};
KW Kinase {ECO:0000256|HAMAP-Rule:MF_00301, ECO:0000313|EMBL:ORE85508.1};
KW Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_00301};
KW Reference proteome {ECO:0000313|Proteomes:UP000192342};
KW Threonine biosynthesis {ECO:0000256|ARBA:ARBA00022697, ECO:0000256|HAMAP-
KW Rule:MF_00301};
KW Transferase {ECO:0000256|HAMAP-Rule:MF_00301, ECO:0000313|EMBL:ORE85508.1}.
FT DOMAIN 27..249
FT /note="Aminoglycoside phosphotransferase"
FT /evidence="ECO:0000259|Pfam:PF01636"
SQ SEQUENCE 313 AA; 34832 MW; 870D8CA94194CCEE CRC64;
MSVFTPVSES ELRSYLNAYE LGELVGYKGI EEGIENTNFF LTTSHGEFVL TLFERTPAAD
LPYFLGVMDH LSRAGIPSAR PMPRRDGEVL GTLNGRATAI VERLSGRGVD QPSPEQAAAL
GTVLAKMHKA AADFPAQRPN CRGPSWWTPA LKELHDKLPQ EQLALLQDEV AYQARVDQSA
LPGGVVHADL FRDNALFDGP RLTGLIDFYY ACNDAWAYDV AVCVNDWAIN AEGCFNASVY
DALVGAYAQE RAFSEAECQA WPGQLRRAAL RFWVSRLLDW HFPRAGELTY SKDPAEFERI
LLAHRQRTPQ WPG
//