Molecular characterization and expression of a putative ATPase domain from Eimeria tenella.
VCP (Valosin-Containing Protein), a member of the AAA (ATPases Associated to a variety of cellular Activities) family of proteins, possesses a duplicated highly conserved ATPase domain. An expressed sequence tag (EST), representing a clone from the Eimeria tenella merozoite cDNA library, was found to have high similarity to VCP genes from other organisms. A complete sequence derived from the corresponding clone (designated eth060) shows amino acid identity of 42-62% with other members of the VCP subfamily. Sequence analysis identified a putative ATPase domain in the eth060 sequence. This domain was PCR-amplified using gene-specific primers and cloned into a pBAD/Thio-TOPO expression vector. Expression in Escherichia coli demonstrated that the putative ATPase domain, which consists of 414 amino acid residues, produced a fusion protein of approximately 60 kDa in size.
Centre for Gene Analysis and Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor DE, Malaysia.
Saw-Peng
SP
Chong
Mohd Sanusi
MS
Jangi
Kiew-Lian
KL
Wan
D000251:Adenosine Triphosphatases / Q000737:chemistry / Q000235:genetics*; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D018076:DNA, Complementary / Q000235:genetics; D016054:DNA, Protozoan / Q000235:genetics; D016786:Eimeria tenella / Q000201:enzymology* / Q000235:genetics*; D004926:Escherichia coli; D020224:Expressed Sequence Tags; D015870:Gene Expression; D017125:Genes, Protozoan; D008969:Molecular Sequence Data; D017434:Protein Structure, Tertiary; D015800:Protozoan Proteins / Q000737:chemistry / Q000235:genetics*; D011993:Recombinant Fusion Proteins / Q000737:chemistry / Q000235:genetics; D017386:Sequence Homology, Amino Acid
D018076:DNA, Complementary; D016054:DNA, Protozoan; D015800:Protozoan Proteins; D011993:Recombinant Fusion Proteins; D000251:Adenosine Triphosphatases