ID G5ZXT0_9PROT Unreviewed; 295 AA.
AC G5ZXT0;
DT 25-JAN-2012, integrated into UniProtKB/TrEMBL.
DT 25-JAN-2012, sequence version 1.
DT 27-MAR-2024, entry version 49.
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=HIMB100_00008310 {ECO:0000313|EMBL:EHI49261.1};
OS SAR116 cluster alpha proteobacterium HIMB100.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; SAR116 cluster.
OX NCBI_TaxID=909943 {ECO:0000313|EMBL:EHI49261.1, ECO:0000313|Proteomes:UP000004261};
RN [1] {ECO:0000313|EMBL:EHI49261.1, ECO:0000313|Proteomes:UP000004261}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=strain HIMB100 {ECO:0000313|Proteomes:UP000004261};
RX PubMed=22675578; DOI=10.4056/sigs.1854551;
RA Grote J., Bayindirli C., Bergauer K., Carpintero de Moraes P., Chen H.,
RA D'Ambrosio L., Edwards B., Fernandez-Gomez B., Hamisi M., Logares R.,
RA Nguyen D., Rii Y.M., Saeck E., Schutte C., Widner B., Church M.J.,
RA Steward G.F., Karl D.M., Delong E.F., Eppley J.M., Schuster S.C.,
RA Kyrpides N.C., Rappe M.S.;
RT "Draft genome sequence of strain HIMB100, a cultured representative of the
RT SAR116 clade of marine Alphaproteobacteria.";
RL Stand. Genomic Sci. 5:269-278(2011).
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|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:EHI49261.1}.
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DR EMBL; AFXB01000006; EHI49261.1; -; Genomic_DNA.
DR AlphaFoldDB; G5ZXT0; -.
DR STRING; 909943.HIMB100_00008310; -.
DR PATRIC; fig|909943.3.peg.841; -.
DR eggNOG; COG2334; Bacteria.
DR UniPathway; UPA00050; UER00064.
DR Proteomes; UP000004261; 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|ARBA:ARBA00022777, ECO:0000256|HAMAP-Rule:MF_00301};
KW Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_00301};
KW Reference proteome {ECO:0000313|Proteomes:UP000004261};
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:EHI49261.1}.
FT DOMAIN 3..231
FT /note="Aminoglycoside phosphotransferase"
FT /evidence="ECO:0000259|Pfam:PF01636"
SQ SEQUENCE 295 AA; 32697 MW; FBB5E733C2C2B7E6 CRC64;
MAGIAEGVEN SNYLLRTEKA NFILTLYEKR VNEADLPFFI GLMDHLADAG LQCPVPIKDK
AGTVLQRCAG RTAAIVSFLD GTSQKFPTAE KCAELGRALA HFHMDSADFS LKRTNSLGPD
SWLPLLKSVN GELSDMPAGL KQKAESCIHD LLKAWPTDLP AGHIHADLFP NNALFVGDKL
TGIIDFYFAC HDLYSYDLAV CLNSWCFDKD GSFNVTKSAR LLNAYQTVRP LQEAEKHALP
TLCAGAAMRF FLTRLYDWIN TPADALVKPL DPLEFWARLR FHQKVAGPAD YGLWS
//
