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A novel protein kinase gene family in Giardia duodenalis



A novel protein kinase gene family in Giardia duodenalis



Gene (amsterdam). 177(1-2): 194



Two protein kinase (PK) genes, gPK1 and gPK2, were cloned from the genome of the ancient protozoan parasite, Giardia duodenalis (Gd). Both gPK genes and their products are highly homologous (85% and 77% identical, respectively). gPK1 and gPK2 contain all the motifs characteristic of PK, but they are not highly homologous to other PK and therefore belong to a novel PK gene family. Northern blot analysis showed that the gPK genes are expressed in vivo. Southern blot analysis indicated that there are other homologous PK genes in the Gd genome. gPK1 and gPK2 are the first full-length PK genes cloned from this primitive eukaryote. The unique amino acid (aa) sequences of gPK1 and gPK2 suggest that they are involved in unique biological functions in Gd.

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Accession: 008061167

Download citation: RISBibTeXText

PMID: 8921866

DOI: 10.1016/0378-1119(96)00300-9


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