Reviewed, UniProtKB/Swiss-Prot Q57EP5 (KHSE_BRUAB)

Names and origin

Protein names

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

Gene names

Name:	thrB
Ordered Locus Names:	BruAb1_0498

Organism

Brucella abortus [Complete proteome] [HAMAP]

Taxonomic identifier

235 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Alphaproteobacteria › Rhizobiales › Brucellaceae › Brucella

Protein attributes

Sequence length	326 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: HAMAP
Molecular function	ATP binding Inferred from electronic annotation. Source: UniProtKB-KW homoserine kinase activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 326	326	Homoserine kinase HAMAP MF_00301		PRO_0000300782

Sequences

	Sequence		Length	Mass (Da)
	Q57EP5-1 [UniParc]. Last modified May 10, 2005. Version 1. Checksum: 0503E8758D5F1AFA	FASTA	326	36,645
	10 20 30 40 50 60 MAVYTDINEI ELGAFLRHYD IGTLTSYKGI AEGVENSNYL LHTSSGSFIL TLYEKRTNRE 70 80 90 100 110 120 DLPFFLGLMQ HLAKRGLECP QPVVRNDGAM IGQLAGRPAA IVTFLEGMWM RRPTVAHCEA 130 140 150 160 170 180 VGEGLAHMHL AGADFPMRRR NGLTLPDWRP LWNLSRKCAD TVERGLVAET EADLDFLEKN 190 200 210 220 230 240 WPADLPQGVI HADLFPDNAF FLGDRLSGFI DFYFACTDIL AYDVAVCLNA WCFEKDFSYN 250 260 270 280 290 300 RTKGAALLRG YTSVRPLSEA EADALLVLAR GAAVRFMLTR LYDWLTVPAG SFVVKKDPME 310 320 YVRRMRFHRQ IESAAEYGLE MQGVAA

References

[1]

"Completion of the genome sequence of Brucella abortus and comparison to the highly similar genomes of Brucella melitensis and Brucella suis." Halling S.M., Peterson-Burch B.D., Bricker B.J., Zuerner R.L., Qing Z., Li L.-L., Kapur V., Alt D.P., Olsen S.C. J. Bacteriol. 187:2715-2726(2005) [PubMed: 15805518] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: 9-941 / Biovar 1.

Cross-references

Sequence databases
EMBL GenBank DDBJ	AE017223 Genomic DNA. Translation: AAX73889.1.
RefSeq	YP_221250.1.
3D structure databases
SMR	Q57EP5. Positions 5-319.
ModBase	Search...
Genome annotation databases
GeneID	3340114.
GenomeReviews	Gene locus BruAb1_0498 in contig AE017223_GR.
KEGG	bmb:BruAb1_0498.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	HBG309377.
OMA	ADLFRDN.
Enzyme and pathway databases
BioCyc	BABO262698:BRUAB1_0498-MONOMER.
BRENDA	2.7.1.39. 575.
Family and domain databases
HAMAP	MF_00301. Homoser_kinase_2. [Tree]
InterPro	IPR002575. APH_trans. IPR005280. Homoserine_Kinase_ThrB. IPR011009. Kinase-like_dom. [Graphical view]
Pfam	PF01636. APH. 1 hit. [Graphical view]
TIGRFAMs	TIGR00938. thrB_alt. 1 hit.
ProtoNet	Search...

Entry information

Entry name

KHSE_BRUAB

Accession

Primary (citable) accession number: Q57EP5

Entry history

Integrated into UniProtKB/Swiss-Prot:	September 11, 2007
Last sequence update:	May 10, 2005
Last modified:	February 9, 2010
This is version 39 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)