ID   KHSE_STAAE              Reviewed;         304 AA.
AC   A6QGN2;
DT   26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-AUG-2007, sequence version 1.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=Homoserine kinase {ECO:0000255|HAMAP-Rule:MF_00384};
DE            Short=HK {ECO:0000255|HAMAP-Rule:MF_00384};
DE            Short=HSK {ECO:0000255|HAMAP-Rule:MF_00384};
DE            EC=2.7.1.39 {ECO:0000255|HAMAP-Rule:MF_00384};
GN   Name=thrB {ECO:0000255|HAMAP-Rule:MF_00384}; OrderedLocusNames=NWMN_1242;
OS   Staphylococcus aureus (strain Newman).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=426430;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Newman;
RX   PubMed=17951380; DOI=10.1128/jb.01000-07;
RA   Baba T., Bae T., Schneewind O., Takeuchi F., Hiramatsu K.;
RT   "Genome sequence of Staphylococcus aureus strain Newman and comparative
RT   analysis of staphylococcal genomes: polymorphism and evolution of two major
RT   pathogenicity islands.";
RL   J. Bacteriol. 190:300-310(2008).
CC   -!- FUNCTION: Catalyzes the ATP-dependent phosphorylation of L-homoserine
CC       to L-homoserine phosphate. {ECO:0000255|HAMAP-Rule:MF_00384}.
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:0000255|HAMAP-Rule:MF_00384};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine
CC       from L-aspartate: step 4/5. {ECO:0000255|HAMAP-Rule:MF_00384}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00384}.
CC   -!- SIMILARITY: Belongs to the GHMP kinase family. Homoserine kinase
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00384}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AP009351; BAF67514.1; -; Genomic_DNA.
DR   RefSeq; WP_000073184.1; NZ_CP023390.1.
DR   AlphaFoldDB; A6QGN2; -.
DR   SMR; A6QGN2; -.
DR   EnsemblBacteria; BAF67514; BAF67514; NWMN_1242.
DR   KEGG; sae:NWMN_1242; -.
DR   HOGENOM; CLU_041243_0_0_9; -.
DR   OMA; CANRIPH; -.
DR   UniPathway; UPA00050; UER00064.
DR   Proteomes; UP000006386; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
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   Gene3D; 3.30.230.10; -; 1.
DR   Gene3D; 3.30.70.890; -; 1.
DR   HAMAP; MF_00384; Homoser_kinase; 1.
DR   InterPro; IPR013750; GHMP_kinase_C_dom.
DR   InterPro; IPR036554; GHMP_kinase_C_sf.
DR   InterPro; IPR006204; GHMP_kinase_N_dom.
DR   InterPro; IPR006203; GHMP_knse_ATP-bd_CS.
DR   InterPro; IPR000870; Homoserine_kinase.
DR   InterPro; IPR020568; Ribosomal_S5_D2-typ_fold.
DR   InterPro; IPR014721; Ribosomal_S5_D2-typ_fold_subgr.
DR   Pfam; PF08544; GHMP_kinases_C; 1.
DR   Pfam; PF00288; GHMP_kinases_N; 1.
DR   PIRSF; PIRSF000676; Homoser_kin; 1.
DR   SUPFAM; SSF54211; SSF54211; 1.
DR   SUPFAM; SSF55060; SSF55060; 1.
DR   TIGRFAMs; TIGR00191; thrB; 1.
DR   PROSITE; PS00627; GHMP_KINASES_ATP; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; ATP-binding; Cytoplasm; Kinase;
KW   Nucleotide-binding; Threonine biosynthesis; Transferase.
FT   CHAIN           1..304
FT                   /note="Homoserine kinase"
FT                   /id="PRO_1000072189"
FT   BINDING         90..100
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00384"
SQ   SEQUENCE   304 AA;  33267 MW;  BB6FACEF01A3C0E9 CRC64;
     MSNVLELTIP ASTANLGVGF DSIGMALDKF LHLSVKETSG TKWEYIFHDD ASKQLPTDET
     NFIYHVAQQV ASKYSVDLPN LCIEMRSDIP LARGLGSSAS ALVGAIYIAN YFGDIQLSKH
     EVLQLATEIE GHPDNVAPTI YGGLIAGYYN DVSKETSVAH IDIPDVDVIV TIPTYELKTE
     ASRRALPQKL THSEAVKSSA ISNTMICALA QHNYELAGKL MQQDGFHEPY RQHLIAEFDE
     VKTIASQHNA YATVISGAGP TILIFSRKEN SGELVRSLNS QVVSCHSELV DINISGVKER
     IVYQ