The CRISPR-Cpf1 system is a class 2 CRISPR-Cas system that mediates robust DNA interference. Cpf1 differ from Cas9 in many aspects including the guide RNAs and substrate specificity. The Cpf1-crRNA complex cleaves a target double-stranded DNA contain ...
The CRISPR-Cpf1 system is a class 2 CRISPR-Cas system that mediates robust DNA interference. Cpf1 differ from Cas9 in many aspects including the guide RNAs and substrate specificity. The Cpf1-crRNA complex cleaves a target double-stranded DNA containing a short T-rich PAM motif on the 5' end of the non-target strand. This PAM motif is recognized by the Cpf1 PI (PAM-interacting) domain. This domain folds into array of four helices and along with the helix-loop-helix motif in the REC1 domain, channel the PAM strand into a cavity leading to the nuclease site [1-2].
This is a nuclease (NUC) domain found in Cpf1, an RNA-guided endonuclease of a type V CRISPR-Cas system. Structural and functional analysis indicate that this domain is involved in DNA cleavage [1].
This Pfam entry represents the REC2 domain from the Cpf1 protein, an RNA-guided endonuclease of a type V CRISPR-Cas system that has been harnessed for genome editing. The REC2 domain is a part of the REC lobe of the bilobed architecture of Cpf1, whic ...
This Pfam entry represents the REC2 domain from the Cpf1 protein, an RNA-guided endonuclease of a type V CRISPR-Cas system that has been harnessed for genome editing. The REC2 domain is a part of the REC lobe of the bilobed architecture of Cpf1, which consists of both REC1 and REC2 domains. The REC2 domain comprises 10 alpha helices and 2 beta strands that form a small antiparallel sheet. The crRNA-target DNA heteroduplex is accommodated within the positively charged, central channel formed by the REC1, REC2, and RuvC domains, and is recognized by the protein in a sequence-independent manner.
Cpf1 is an RNA-guided endonuclease of a type V CRISPR-Cas system. Cpf1 adopts a bilobed architecture consisting of an alpha-helical recognition (REC) lobe and a nuclease (NUC) lobe, with the small CRISPR RNAs (crRNAs)-target DNA heteroduplex bound to ...
Cpf1 is an RNA-guided endonuclease of a type V CRISPR-Cas system. Cpf1 adopts a bilobed architecture consisting of an alpha-helical recognition (REC) lobe and a nuclease (NUC) lobe, with the small CRISPR RNAs (crRNAs)-target DNA heteroduplex bound to the positively charged, central channel between the two lobes. The REC lobe consists of the REC1 and REC2 domains where REC1 comprises 13 alpha helices, and REC2 comprises ten alpha helices and two beta strands that form a small antiparallel sheet [1]. This entry represents REC1 domain.
This is a RuvC nuclease domain found in type V CRISPR-associated protein Cas12a (Cpf1), used for genome editing applications. These proteins carry out endoribonuclease activity for processing its own guide RNAs and RNA-guided DNase activity for targe ...
This is a RuvC nuclease domain found in type V CRISPR-associated protein Cas12a (Cpf1), used for genome editing applications. These proteins carry out endoribonuclease activity for processing its own guide RNAs and RNA-guided DNase activity for target DNA cleavage. The C-terminal region of Cas12a carries the RUVC domain, NUC domain Pfam:PF18510 and the arginine-rich bridge helix (BH). Both the NUC and BH domains are nested in the RuvC domain. Mutations in the RuvC domain impair cleavage of both strands in a target DNA duplex, while a mutation in the Nuc domain impaired target strand cleavage only. This indicates that the DNA nuclease active sites are located at the interface of the RuvC and Nuc domains and that cleavage of the non-target DNA strand by the RuvC domain is a prerequisite for target strand cleavage by the Nuc domain [1].
