B1ILR0 (KHSE_CLOBK) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Homoserine kinase
Short name=HK
Short name=HSK
EC=2.7.1.39

Gene names

Name:	thrB
Ordered Locus Names:	CLD_2916

Organism

Clostridium botulinum (strain Okra / Type B1) [Complete proteome] [HAMAP]

Taxonomic identifier

498213 [NCBI]

Taxonomic lineage

Bacteria › Firmicutes › Clostridia › Clostridiales › Clostridiaceae › Clostridium

Protein attributes

Sequence length	297 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Catalyzes the ATP-dependent phosphorylation of L-homoserine to L-homoserine phosphate By similarity. HAMAP MF_00384
Catalytic activity	ATP + L-homoserine = ADP + O-phospho-L-homoserine. HAMAP MF_00384
Pathway	Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine from L-aspartate: step 4/5. HAMAP MF_00384
Subcellular location	Cytoplasm Potential HAMAP MF_00384.
Sequence similarities	Belongs to the GHMP kinase family. Homoserine kinase subfamily.

Ontologies

Keywords
Biological process	Amino-acid biosynthesis Threonine biosynthesis
Cellular component	Cytoplasm
Ligand	ATP-binding Nucleotide-binding
Molecular function	Kinase Transferase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	threonine biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	ATP binding Inferred from electronic annotation. Source: UniProtKB-KW homoserine kinase activity Inferred from electronic annotation. Source: EC
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 297	297	Homoserine kinase HAMAP MF_00384		PRO_1000122412
Regions
	Nucleotide binding	82 – 92	11	ATP Potential

Sequences

	Sequence		Length	Mass (Da)
	B1ILR0 [UniParc]. Last modified April 29, 2008. Version 1. Checksum: B8795B903A8934DC	FASTA	297	32,733
	10 20 30 40 50 60 MVEVRVPATS ANIGPGFDCL GVAVNIYNKF FVEEIEDGLI FEGCADKFKN ENNLIYVAMK 70 80 90 100 110 120 KCFDKIGYKP TGLRIKIESD IPVSRGLGSS AACVVGGIVS ANELAGGALN KKELLDLAVE 130 140 150 160 170 180 VEGHPDNVNP AFCGGMTASI SDNREVIYSK VKVSEGIKFC ALIPDFTLST EKARAVLPKS 190 200 210 220 230 240 IDYKDGIFNV GRTALMISAL NNGDFHLIKY ACKDKLHQDY RAKLIENFYS IKKQCEKLNS 250 260 270 280 290 LGVFLSGAGP TIMVMLREED KDFSKNIKSF LETLKNKWEV RELKIDKLGT VVNNRKL

References

[1]

"Analysis of the neurotoxin complex genes in Clostridium botulinum A1-A4 and B1 strains: BoNT/A3, /Ba4 and /B1 clusters are located within plasmids." Smith T.J., Hill K.K., Foley B.T., Detter J.C., Munk A.C., Bruce D.C., Doggett N.A., Smith L.A., Marks J.D., Xie G., Brettin T.S. PLoS ONE 2:E1271-E1271(2007) [PubMed: 18060065] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Okra / Type B1.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP000939 Genomic DNA. Translation: ACA46319.1.
RefSeq	YP_001781272.1. NC_010516.1.
3D structure databases
ProteinModelPortal	B1ILR0.
ModBase	Search...
Protein-protein interaction databases
STRING	B1ILR0.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	6150820.
GenomeReviews	Gene locus CLD_2916 in contig CP000939_GR.
KEGG	cbb:CLD_2916.
PATRIC	19403760. VBICloBot127283_1784.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG646290.
OMA	NNALMST.
ProtClustDB	PRK01212.
Enzyme and pathway databases
BioCyc	CBOT498213:CLD_2916-MONOMER.
Family and domain databases
HAMAP	MF_00384. Homoser_kinase. [Tree]
InterPro	IPR006204. GHMP_kinase. IPR013750. GHMP_kinase_C. IPR006203. GHMP_knse_ATP-bd_CS. IPR000870. Homoserine_kinase. IPR020568. Ribosomal_S5_D2-typ_fold. IPR014721. Ribosomal_S5_D2-typ_fold_subgr. [Graphical view]
Gene3D	G3DSA:3.30.230.10. Ribosomal_S5_D2-type_fold. 1 hit.
KO	K00872.
Pfam	PF08544. GHMP_kinases_C. 1 hit. PF00288. GHMP_kinases_N. 1 hit. [Graphical view]
PIRSF	PIRSF000676. Homoser_kin. 1 hit.
PRINTS	PR00958. HOMSERKINASE.
SUPFAM	SSF54211. Ribosomal_S5_D2-typ_fold. 1 hit.
TIGRFAMs	TIGR00191. ThrB. 1 hit.
PROSITE	PS00627. GHMP_KINASES_ATP. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

KHSE_CLOBK

Accession

Primary (citable) accession number: B1ILR0

Entry history

Integrated into UniProtKB/Swiss-Prot:	April 14, 2009
Last sequence update:	April 29, 2008
Last modified:	January 25, 2012
This is version 33 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program