Q2KBL3 (KHSE_RHIEC) 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:	RHE_CH00962

Organism

Rhizobium etli (strain CFN 42 / ATCC 51251) [Complete proteome] [HAMAP]

Taxonomic identifier

347834 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Alphaproteobacteria › Rhizobiales › Rhizobiaceae › Rhizobium/Agrobacterium group › Rhizobium

Protein attributes

Sequence length	321 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Catalytic activity	ATP + L-homoserine = ADP + O-phospho-L-homoserine. HAMAP MF_00301
Pathway	Amino-acid biosynthesis; L-threonine biosynthesis; L-threonine from L-aspartate: step 4/5. HAMAP MF_00301
Sequence similarities	Belongs to the pseudomonas-type thrB family.

Ontologies

Keywords
Biological process	Amino-acid biosynthesis Threonine biosynthesis
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
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 – 321	321	Homoserine kinase HAMAP MF_00301		PRO_0000300801

Sequences

	Sequence		Length	Mass (Da)
	Q2KBL3 [UniParc]. Last modified March 7, 2006. Version 1. Checksum: 3F514A4222B4C9AD	FASTA	321	35,842
	10 20 30 40 50 60 MAVYTDIAED DLKWFLTEYD VGTLLSYKGI AEGVENSNFL LHTSKAPLIL TLYEKRVEKS 70 80 90 100 110 120 DLPFFLGLMQ HLSARGLSCP LPLPRRDGAL LGSLSGRPAA LISFLEGMWL RKPEAKHCRE 130 140 150 160 170 180 VGRALAEMHV AGEGFELKRP NALSLDGWRG LWEKSEARAD EVESGLQGEI RNELDFLAAA 190 200 210 220 230 240 WPKSLPSGVI HADLFPDNVF FLGDELSGLI DFYFACNDLL AYDVSICLNA WCFEKDGAYN 250 260 270 280 290 300 ITKGMAMLEG YQSVRPLSGE EIAALPLLAR GSALRFFLTR LYDWLMTPEG AMVTKKDPLE 310 320 YLHKLRFHRQ IGSAAEYGLS L

References

[1]

"The partitioned Rhizobium etli genome: genetic and metabolic redundancy in seven interacting replicons." Gonzalez V., Santamaria R.I., Bustos P., Hernandez-Gonzalez I., Medrano-Soto A., Moreno-Hagelsieb G., Janga S.C., Ramirez M.A., Jimenez-Jacinto V., Collado-Vides J., Davila G. Proc. Natl. Acad. Sci. U.S.A. 103:3834-3839(2006) [PubMed: 16505379] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: CFN 42 / ATCC 51251.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP000133 Genomic DNA. Translation: ABC89773.1.
RefSeq	YP_468500.1. NC_007761.1.
3D structure databases
ProteinModelPortal	Q2KBL3.
SMR	Q2KBL3. Positions 5-320.
ModBase	Search...
Protein-protein interaction databases
STRING	Q2KBL3.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	3892509.
GenomeReviews	Gene locus RHE_CH00962 in contig CP000133_GR.
KEGG	ret:RHE_CH00962.
PATRIC	23083244. VBIRhiEtl108884_1298.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG2334.
HOGENOM	HBG309377.
OMA	ICLNAWC.
ProtClustDB	PRK05231.
Family and domain databases
HAMAP	MF_00301. Homoser_kinase_2. [Tree]
InterPro	IPR002575. Aminoglycoside_PTrfase. IPR005280. Homoserine_kinase_ThrB. IPR011009. Kinase-like_dom. [Graphical view]
KO	K02204.
Pfam	PF01636. APH. 1 hit. [Graphical view]
SUPFAM	SSF56112. Kinase_like. 1 hit.
TIGRFAMs	TIGR00938. ThrB_alt. 1 hit.
ProtoNet	Search...

Entry information

Entry name

KHSE_RHIEC

Accession

Primary (citable) accession number: Q2KBL3

Entry history

Integrated into UniProtKB/Swiss-Prot:	September 11, 2007
Last sequence update:	March 7, 2006
Last modified:	January 25, 2012
This is version 39 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program