Zinc finger proteins (ZNFs), which bind nucleic acids, perform many key functions, the most important of which is regulating transcription. See ZNF91 (MIM 603971) for general information on ZNFs.[supplied by OMIM, Mar 2008] see less Zinc finger proteins (ZNFs), which bind nucleic acids, perform many key functions, the most important of which is regulating transcription. See ZNF91 (MIM 603971) for general information on ZNFs.[supplied by OMIM, Mar 2008]