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KHSE_BRASO
ID   KHSE_BRASO              Reviewed;         323 AA.
AC   A4Z217;
DT   11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT   29-MAY-2007, sequence version 1.
DT   03-AUG-2022, entry version 81.
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=BRADO6587;
OS   Bradyrhizobium sp. (strain ORS 278).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bradyrhizobiaceae; Bradyrhizobium; unclassified Bradyrhizobium.
OX   NCBI_TaxID=114615;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ORS 278;
RX   PubMed=17540897; DOI=10.1126/science.1139548;
RA   Giraud E., Moulin L., Vallenet D., Barbe V., Cytryn E., Avarre J.-C.,
RA   Jaubert M., Simon D., Cartieaux F., Prin Y., Bena G., Hannibal L.,
RA   Fardoux J., Kojadinovic M., Vuillet L., Lajus A., Cruveiller S., Rouy Z.,
RA   Mangenot S., Segurens B., Dossat C., Franck W.L., Chang W.-S., Saunders E.,
RA   Bruce D., Richardson P., Normand P., Dreyfus B., Pignol D., Stacey G.,
RA   Emerich D., Vermeglio A., Medigue C., Sadowsky M.;
RT   "Legumes symbioses: absence of nod genes in photosynthetic bradyrhizobia.";
RL   Science 316:1307-1312(2007).
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; CU234118; CAL80193.1; -; Genomic_DNA.
DR   RefSeq; WP_012030065.1; NC_009445.1.
DR   AlphaFoldDB; A4Z217; -.
DR   SMR; A4Z217; -.
DR   STRING; 114615.BRADO6587; -.
DR   EnsemblBacteria; CAL80193; CAL80193; BRADO6587.
DR   KEGG; bra:BRADO6587; -.
DR   eggNOG; COG2334; Bacteria.
DR   HOGENOM; CLU_053300_1_0_5; -.
DR   OMA; DPTHFER; -.
DR   OrthoDB; 1003984at2; -.
DR   BioCyc; BSP114615:BRADO_RS30570-MON; -.
DR   UniPathway; UPA00050; UER00064.
DR   Proteomes; UP000001994; Chromosome.
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..323
FT                   /note="Homoserine kinase"
FT                   /id="PRO_0000300781"
SQ   SEQUENCE   323 AA;  35355 MW;  32852EC32770C260 CRC64;
     MAVYTDVAAD ELADFLKTYD IGELLSYKGI AEGVENSNFL LHTTKGSYIL TLYEKRVAVD
     DLPYFLGLMA HLAERGVNCP QPARNRDGAV YSSLAGRPAA IINFLEGMWP RKPAVVHCAG
     VGEALARMHL AGRDFPLVRK NPLSVSGWQS LFAQAADRAD TVQAGLSALL STELDYLARA
     WPTDLPEGVI HADLFPDNVF FLGDHLSGLI DFPFSCNDIL AYDVAICLNA WCFEADHSLN
     VTKARAFFNA YGRARPLSDA ELEALPLLAR GAAIRFLLTR LVDWLNVPAG ALVKPKDPLE
     YVRKLRFHQA VTSARDYGIG ASA
 
 
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