ID   KHSE_BRUA4              Reviewed;         326 AA.
AC   A6WWG7;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-AUG-2007, sequence version 1.
DT   03-AUG-2022, entry version 84.
DE   RecName: Full=Homoserine kinase {ECO:0000255|HAMAP-Rule:MF_00301};
DE            Short=HK {ECO:0000255|HAMAP-Rule:MF_00301};
DE            Short=HSK {ECO:0000255|HAMAP-Rule:MF_00301};
DE            EC=2.7.1.39 {ECO:0000255|HAMAP-Rule:MF_00301};
GN   Name=thrB {ECO:0000255|HAMAP-Rule:MF_00301}; OrderedLocusNames=Oant_0590;
OS   Brucella anthropi (strain ATCC 49188 / DSM 6882 / CCUG 24695 / JCM 21032 /
OS   LMG 3331 / NBRC 15819 / NCTC 12168 / Alc 37) (Ochrobactrum anthropi).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Brucellaceae; Brucella/Ochrobactrum group; Brucella.
OX   NCBI_TaxID=439375;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 49188 / DSM 6882 / CCUG 24695 / JCM 21032 / LMG 3331 / NBRC
RC   15819 / NCTC 12168 / Alc 37;
RX   PubMed=21685287; DOI=10.1128/jb.05335-11;
RA   Chain P.S., Lang D.M., Comerci D.J., Malfatti S.A., Vergez L.M., Shin M.,
RA   Ugalde R.A., Garcia E., Tolmasky M.E.;
RT   "Genome of Ochrobactrum anthropi ATCC 49188 T, a versatile opportunistic
RT   pathogen and symbiont of several eukaryotic hosts.";
RL   J. Bacteriol. 193:4274-4275(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:0000255|HAMAP-Rule:MF_00301};
CC   -!- PATHWAY: Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine
CC       from L-aspartate: step 4/5. {ECO:0000255|HAMAP-Rule:MF_00301}.
CC   -!- SIMILARITY: Belongs to the pseudomonas-type ThrB family.
CC       {ECO:0000255|HAMAP-Rule:MF_00301}.
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DR   EMBL; CP000758; ABS13321.1; -; Genomic_DNA.
DR   RefSeq; WP_012090853.1; NC_009667.1.
DR   AlphaFoldDB; A6WWG7; -.
DR   SMR; A6WWG7; -.
DR   STRING; 439375.Oant_0590; -.
DR   EnsemblBacteria; ABS13321; ABS13321; Oant_0590.
DR   KEGG; oan:Oant_0590; -.
DR   PATRIC; fig|439375.7.peg.630; -.
DR   eggNOG; COG2334; Bacteria.
DR   HOGENOM; CLU_053300_1_0_5; -.
DR   OMA; DPTHFER; -.
DR   OrthoDB; 1003984at2; -.
DR   PhylomeDB; A6WWG7; -.
DR   UniPathway; UPA00050; UER00064.
DR   Proteomes; UP000002301; Chromosome 1.
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   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   Pfam; PF01636; APH; 1.
DR   SUPFAM; SSF56112; SSF56112; 1.
DR   TIGRFAMs; TIGR00938; thrB_alt; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; ATP-binding; Kinase; Nucleotide-binding;
KW   Reference proteome; Threonine biosynthesis; Transferase.
FT   CHAIN           1..326
FT                   /note="Homoserine kinase"
FT                   /id="PRO_1000022587"
SQ   SEQUENCE   326 AA;  36526 MW;  E3D9B659A2482F63 CRC64;
     MAVYTDINEI ELGAFLQQYD IGTLTSYKGI AEGVENSNYL LHTTSGSFIL TLYEKRTNRE
     DLPFFLGLMQ HLASRGLECP QPVVRRDGTT IGELAGRPAA IVTFLEGMWM RRPTVEHCEA
     VGEGLAHMHL AGADFSLRRR NGLTLADWRP LWNLSRGRAD TVEPGLVREA EADLAFLEKN
     WPADLPQGVI HADLFPDNVF FLGDRLSGFI DFYFACTDTL AYDVAVCLNA WCFEKDFSYN
     RTKGAALLRG YTSVRPLSAA EADALPVLAR GAAIRFMLTR LYDWLNVPEG SFVVKKDPME
     YVRKIRFHRQ IETAAEYGLE QQGAAA