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Top: An ancestral gene duplication produces two paralogs (histone H1.1 and 1.2). A speciation event produces orthologs in the two daughter species (human and chimpanzee). Bottom: in a separate species , a gene has a similar function (histone-like nucleoid-structuring protein) but has a separate evolutionary origin and so is an analog.
The PER1 ortholog was first discovered by Ronald Konopka and Seymour Benzer in 1971. During 1997, Period 1 (mPer1) and Period 2 (mPer2) genes were discovered (Sun et al., 1997 and Albretch et al., 1997). Through homology screens with the Drosophila per, these genes were discovered.
In the fruitfly Drosophila, irradiation of germ line cells generates double-strand breaks that result in cell cycle arrest and apoptosis. The Drosophila CHEK2 ortholog mnk and the p53 ortholog dp53 are required for much of the cell death observed in early oogenesis when oocyte selection and meiotic recombination occur.
The French zoologist Etienne Geoffroy Saint-Hilaire showed in 1818 in his theorie d'analogue ("theory of homologues") that structures were shared between fishes, reptiles, birds, and mammals. [5] When Geoffroy went further and sought homologies between Georges Cuvier 's embranchements , such as vertebrates and molluscs, his claims triggered the ...
Top: An ancestral gene duplication produces two paralogs (histone H1.1 and 1.2). A speciation event produces orthologs in the two daughter species (human and chimpanzee). Bottom: in a separate species , a gene has a similar function (histone-like nucleoid-structuring protein) but has a separate evolutionary origin and so is an analog.
126248 384605 Ensembl ENSG00000166359 ENSMUSG00000118454 UniProt Q6ZMY6 n/a RefSeq (mRNA) NM_173479 NM_001370886 RefSeq (protein) NP_775750 n/a Location (UCSC) Chr 19: 33.13 – 33.18 Mb Chr 7: 34.94 – 34.97 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse WDR88 (WD repeat containing protein 88) is a protein, which in humans, is encoded by the gene WDR88. It consists of seven WD40 ...
In eukaryotes, the cell cycle consists of four main stages: G 1, during which a cell is metabolically active and continuously grows; S phase, during which DNA replication takes place; G 2, during which cell growth continues and the cell synthesizes various proteins in preparation for division; and the M phase, during which the duplicated ...
Cyclin-dependent kinase 1 also known as CDK1 or cell division cycle protein 2 homolog is a highly conserved protein that functions as a serine/threonine protein kinase, and is a key player in cell cycle regulation. [5]