KHSE_STRPS
ID KHSE_STRPS Reviewed; 289 AA.
AC B2IQH7;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 10-JUN-2008, sequence version 1.
DT 03-AUG-2022, entry version 74.
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=SPCG_1349;
OS Streptococcus pneumoniae (strain CGSP14).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=516950;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CGSP14;
RX PubMed=19361343; DOI=10.1186/1471-2164-10-158;
RA Ding F., Tang P., Hsu M.-H., Cui P., Hu S., Yu J., Chiu C.-H.;
RT "Genome evolution driven by host adaptations results in a more virulent and
RT antimicrobial-resistant Streptococcus pneumoniae serotype 14.";
RL BMC Genomics 10:158-158(2009).
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}.
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DR EMBL; CP001033; ACB90601.1; -; Genomic_DNA.
DR RefSeq; WP_000692438.1; NC_010582.1.
DR AlphaFoldDB; B2IQH7; -.
DR SMR; B2IQH7; -.
DR EnsemblBacteria; ACB90601; ACB90601; SPCG_1349.
DR GeneID; 60233312; -.
DR GeneID; 66806477; -.
DR KEGG; spw:SPCG_1349; -.
DR HOGENOM; CLU_041243_0_0_9; -.
DR OMA; CANRIPH; -.
DR UniPathway; UPA00050; UER00064.
DR Proteomes; UP000001682; 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..289
FT /note="Homoserine kinase"
FT /id="PRO_1000122447"
FT BINDING 79..89
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00384"
SQ SEQUENCE 289 AA; 31548 MW; BA1BBA895A72BD18 CRC64;
MKIIVPATSA NIGPGFDSVG VAVTKYLQIE VCEERDEWLI EHQIGKWIPH DERNLLLKIA
LQIVPDLQPR RLKMTSDVPL ARGLGSSSSV IVAGIELANQ LGQLNLSDHE KLQLATKIEG
HPDNVAPAIY GNLVIASSVE GQVSAIVADF PECDFLAYIP NYELRTRDSR SVLPKKLSYK
EAVAASSIAN VAVAALLAGD MVTAGQAIEG DLFHERYRQD LVREFAMIKQ VTKENGAYAT
YLSGAGPTVM VLASHDKMPT IKAELEKQPF KGKLHDLRVD TQGVRVEAK