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- ArhGAP11B_and_human_encephalisation abstract "A gene appearing after the divergence from chimpanzee controls neural progenitors proliferation and can cause neocortex folding .ARHGAP11B is a human-specific gene that amplifies basal progenitors and is capable of causing neocortex folding in mouse. This likely reflects a role for ARHGAP11B in development and evolutionary expansion of the human neocortex, a conclusion consistent with the finding that the gene duplication that created ARHGAP11B occurred on the human lineage after the divergence from the chimpanzee lineage but before the divergence from Neandertals, whose brain size was similar to that of modern humans. (*)Structure ARHGAP11B contains 267 amino-acids and is a truncated version of ARHGAP11A. ARHGAP11B arose on the human evolutionary lineage after the divergence from the chimpanzee lineage by partial duplication of ARHGAP11A, which is found throughout the animal kingdom and encodes a Rho GTPase-activating-protein (RhoGAP domain). ARHGAP11B exists not only in present-day humans but also in Neandertals and Denisovans. ARHGAP11B comprises most of the GAP-domain (until lysine-220) followed by a novel C-terminal sequence but lacking the C-terminal 756 amino acids of ARHGAP11A.ActivityIn contrast to full-length ARHGAP11A and ARHGAP11A 1-250, ARHGAP11B, like ARHGAP11A1-220, did not exhibit RhoGAP activity in a RhoA/Rho-kinase–based cell transfection assay . This indicates that the C-terminal 47 amino-acids of ARHGAP11B (after lysine-220) constitute not only a unique sequence, resulting from a frameshifting deletion, but also are functionally distinct from their counterpart in ARHGAP11A. In this assay, co-expression of ARHGAP11B along with ARHGAP11A did not inhibit the latter's RhoGAP activity.FunctionSince several genes involved in mental retardation encode proteins with RhoGAP domains or other proteins in the Rho signalling pathway it does not come as a complete surprise that ARHGAP11B is involved in neocortex folding, however its precise function is still unknown. ARHGAP11B could bind to specific Rho family members, or other partners in this pathway.".
- ArhGAP11B_and_human_encephalisation wikiPageExternalLink 21030649).
- ArhGAP11B_and_human_encephalisation wikiPageID "45532671".
- ArhGAP11B_and_human_encephalisation wikiPageLength "3490".
- ArhGAP11B_and_human_encephalisation wikiPageOutDegree "4".
- ArhGAP11B_and_human_encephalisation wikiPageRevisionID "666414222".
- ArhGAP11B_and_human_encephalisation wikiPageWikiLink Category:Human_evolution.
- ArhGAP11B_and_human_encephalisation wikiPageWikiLink Intellectual_disability.
- ArhGAP11B_and_human_encephalisation wikiPageWikiLink Mental_retardation.
- ArhGAP11B_and_human_encephalisation wikiPageWikiLink RhoGAP_domain.
- ArhGAP11B_and_human_encephalisation wikiPageWikiLinkText "ArhGAP11B and human encephalisation".
- ArhGAP11B_and_human_encephalisation hasPhotoCollection ArhGAP11B_and_human_encephalisation.
- ArhGAP11B_and_human_encephalisation wikiPageUsesTemplate Template:Orphan.
- ArhGAP11B_and_human_encephalisation wikiPageUsesTemplate Template:Reflist.
- ArhGAP11B_and_human_encephalisation subject Category:Human_evolution.
- ArhGAP11B_and_human_encephalisation comment "A gene appearing after the divergence from chimpanzee controls neural progenitors proliferation and can cause neocortex folding .ARHGAP11B is a human-specific gene that amplifies basal progenitors and is capable of causing neocortex folding in mouse.".
- ArhGAP11B_and_human_encephalisation label "ArhGAP11B and human encephalisation".
- ArhGAP11B_and_human_encephalisation sameAs m.012z74bg.
- ArhGAP11B_and_human_encephalisation sameAs Q20311798.
- ArhGAP11B_and_human_encephalisation sameAs Q20311798.
- ArhGAP11B_and_human_encephalisation wasDerivedFrom ArhGAP11B_and_human_encephalisation?oldid=666414222.
- ArhGAP11B_and_human_encephalisation isPrimaryTopicOf ArhGAP11B_and_human_encephalisation.