9FND | pdb_00009fnd

Transcriptional activator PafBC bound to mycobacterial RNA polymerase


Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
B [auth Y]PF19187PafC helix-turn-helix domain (HTH_PafC)PafC helix-turn-helix domainThis entry is an N-terminal HTH domain found in the PafC protein. Transcriptional activator PafBC is responsible for upregulating the majority of genes induced by DNA damage [1]. Domain
B [auth Y]PF13280WYL domain (WYL)WYL domainWYL is a Sm-like SH3 beta-barrel fold containing domain. It is a member of the WYL-like superfamily, named for three conserved amino acids found in a subset of the superfamily. However, these residues are not strongly conserved throughout the family. ...WYL is a Sm-like SH3 beta-barrel fold containing domain. It is a member of the WYL-like superfamily, named for three conserved amino acids found in a subset of the superfamily. However, these residues are not strongly conserved throughout the family. Rather, the conservation pattern includes four basic residues and a position often occupied by a cysteine [1], which are predicted to line a ligand-binding groove typical of the Sm-like SH3 beta-barrels. A WYL domain protein (sll7009) is a negative regulator of the I-D CRISPR-Cas system in Synechocystis sp [2]. It is predicted to be a ligand-sensing domain that could bind negatively charged ligands, such as nucleotides or nucleic acid fragments, to regulate CRISPR-Cas and other defense systems such as the abortive infection AbiG system.
Domain
B [auth Y]PF25583WCX domain (WCX)WCX domainThis domain is found in the PafB and PafC heteromeric regulators that act as transcriptional activators and belong to the large bacterial family of WYL domain- containing proteins. In these proteins, WCX domain (WYL C-terminal extension) is found nex ...This domain is found in the PafB and PafC heteromeric regulators that act as transcriptional activators and belong to the large bacterial family of WYL domain- containing proteins. In these proteins, WCX domain (WYL C-terminal extension) is found next to the WYL domain. WCX domain is involved in heterodimer formation. It folds into an alpha/beta structure composed of four-stranded beta-sheet with alpha-helices packed on it with topology similar to ferredoxin-like domains.
Domain