Macromolecule Annotations for the Entities in PDB 1NA6

Protein Family Annotation Pfam Database Homepage

Chains Pfam Accession Pfam Identifier Pfam Description Type Source
A PF09019 EcoRII-C EcoRII C terminal Domain The C-terminal catalytic domain of the Restriction Endonuclease EcoRII has a restriction endonuclease-like fold with a central five-stranded mixed beta-sheet surrounded on both sides by alpha-helices. It cleaves DNA specifically at single 5' CCWGG sites [1]. PFAM PF09019
A PF09217 EcoRII-N Restriction endonuclease EcoRII, N-terminal Domain The N-terminal effector-binding domain of the Restriction Endonuclease EcoRII has a DNA recognition fold, allowing for binding to 5'-CCWGG sequences. It assumes a structure composed of an eight-stranded beta-sheet with the strands in the order of b2, b5, b4, b3, b7, b6, b1 and b8. They are mostly antiparallel to each other except that b3 is parallel to b7. Alternatively, it may also be viewed as consisting of two mini beta-sheets of four antiparallel beta-strands, sheet I from beta-strands b2, b5, b4, b3 and sheet II from strands b7, b6, b1, b8, folded into an open mixed beta-barrel with a novel topology. Sheet I has a simple Greek key motif while sheet II does not [1]. PFAM PF09217

Gene Product Annotation Gene Ontology Consortium Homepage

Protein Modification Annotation

Type PDB Residue Nr. Description