Example sentences for: ypop
How can you use “ypop” in a sentence? Here are some example sentences to help you improve your vocabulary:
Here we report the identification of nineteen yCCR4-like proteins in eukaryotes and show, by phylogenetic and genomic analyses, that they are grouped into four distinct families, one of which contains the yCCR4 orthologs : these orthologs, in animals, have conserved the yCCR4 leucine-rich repeat, and we show, using two-hybrid assays and far-Western experiments, that the human protein binds to the human yPOP2 homologs, i.e. hCAF1 and hPOP2, in a LRR-dependent manner.
Indeed, both human homologs of yPOP2, hCAF1 and hPOP2, lack the 148 N-terminal amino acids which are, in yPOP2, required for transcriptional activation, whereas the yPOP2 C-terminus, which is involved in the interaction with yCCR4, is conserved in hCAF1 [ 11 ] and hPOP2 [ 19 ] . Similarly, hNOT2, the human homolog of the yNOT2 component of the CCR4-NOT complex, harbors a N-terminal domain divergent from that of yNOT2 -required for transcriptional activation and interaction with the yeast ADA2 factor-, but has conserved the C-terminal domain which is absolutely required for the yCCR4-associated function of yNOT2 [ 19 20 ] . Therefore, it looks as if genes of the CCR4-NOT complex have undergone a "concerted" phylogenetic evolution, with the yeast genes encoding multifunctional proteins and the animal genes only encoding "specialized" proteins specific for the CCR4-NOT complex.
Interestingly, we found that hCCR4 also binds to the second human yPOP2 paralog, hCAF1.
Several components of the yCCR4-associated complexes have already been identified in humans: two homologs of yPOP2 (named hCAF1 and hPOP2/hCALIF) [ 16 17 18 19 ] , and homologs of NOT proteins (named hNOT1, hNOT2, hNOT3, hNOT4) [ 19 ] . Moreover, interactions between these proteins were demonstrated [ 19 20 ] . Yet, at the present time there has been no report of a human protein that would be structurally and functionally close to yCCR4.
In yeast, yCCR4 is one of the components of the 1.0 MDa CCR4-NOT complex, which also includes yPOP2 and at least five yNOT proteins.
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