Phage integrase

Phage integrase (PIN) mediates recombination between DNA recognition sequences - the phage attachment site attP and the bacterial attachment site attB. The Tyrosine family PIN uses a catalytic tyrosine to mediate strand cleavage while the Serine family PIN uses a serine residue. The High-Pathogenicity Island (HPI) is a genomic island essential for virulence of the family of Enterobacteria.

spinqualitylabelsall models Se-Met Enterobacteria phage λ integrase:DNA tetramer complex (Holiday Junction) 1z1g Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image

3D Structures of phage integrase3D Structures of phage integrase

Update June 2011

3nrw – PIN/site-specific recombinase N-terminal – Haloarcula marismortui
3jtz – PIN arm-type binding domain – Yersinia pestis
3ju0 – HPI PIN arm-type binding domain – Pectobacterium atrosepticum
2kkp – PIN SAM-like domain – Moorella thermoacetica – NMR
2kkv – PIN fragment – Salmonella enterica – NMR
2khq - PIN fragment – Staphylococcus saprophyticus – NMR
2wcc – λPIN DBD+ DNA – Enterobacteria phage λ - NMR
1kjk – λPIN N-terminal - NMR
2oxo, 1z19, 1z1b - λPIN core binding domain + DNA
1ae9 - λPIN catalytic core domain (mutant)
1z1g – λPIN + DNA (Holliday junction)
1p7d – λPIN fragment + DNA
3bvp – PIN catalytic core domain – Lactococcus phage TP101-1
1aih - PIN catalytic core domain – Haemophilus phage HP1
2khv, 2kj5 – PIN residues 102-199 – Nitrosospira multiformis - NMR