The Arms Race Between KRAB-Zinc Finger Proteins and Endogenous Retroelements and Its Impact on Mammals
Nearly half of the human genome consists of endogenous retroelements (EREs) and their genetic remnants, a small fraction of which carry the potential to propagate in the host genome, posing a threat to genome integrity and cell organismal survival. The largest family of transcription factors in tetr...
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| Veröffentlicht in: | Annual review of genetics 2019-12, Vol.53 (1), p.393-416 |
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| creator | Bruno, Melania Mahgoub, Mohamed Macfarlan, Todd S |
| description | Nearly half of the human genome consists of endogenous retroelements (EREs) and their genetic remnants, a small fraction of which carry the potential to propagate in the host genome, posing a threat to genome integrity and cell organismal survival. The largest family of transcription factors in tetrapods, the Krüppel-associated box domain zinc finger proteins (KRAB-ZFPs), binds to specific EREs and represses their transcription. Since their first appearance over 400 million years ago, KRAB-ZFPs have undergone dramatic expansion and diversification in mammals, correlating with the invasions of new EREs. In this article we review our current understanding of the structure, function, and evolution of KRAB-ZFPs and discuss growing evidence that the arms race between KRAB-ZFPs and the EREs they target is a major driving force for the evolution of new traits in mammals, often accompanied by domestication of EREs themselves. |
| doi_str_mv | 10.1146/annurev-genet-112618-043717 |
| format | Article |
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| fulltext | fulltext |
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| ispartof | Annual review of genetics, 2019-12, Vol.53 (1), p.393-416 |
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| language | eng |
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| source | Annual Reviews Complete A-Z List |
| subjects | Cell survival Domestication endogenous retroelements EREs Evolution evolutionary arms race Genomes genomic imprinting KRAB-ZFPs Mammals Proteins Structure-function relationships Transcription factors Zinc Zinc finger proteins |
| title | The Arms Race Between KRAB-Zinc Finger Proteins and Endogenous Retroelements and Its Impact on Mammals |
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