Crystal Form II of Pre-Reactive Complex of Restriction Endonuclease HinP1I with Cognate DNA and Calcium Ions

DNA nicking by HinP1I endonuclease: bending, base flipping and minor groove expansion.

Structure of HinP1I endonuclease reveals a striking similarity to the monomeric restriction enzyme MspI

MNLVELGSKTAKDGFKNEKDIADRFENWKENSEAQDWLVTMGHNLDEIKSVKAVVLSGYKSDINVQVLVFYKDALDIHNI
QVKLVSNKRGFNQIDKHWLAHYQEMWKFDDNLLRILRHFTGELPPYHSNTKDKRRMFMTEFSQEEQNIVLNWLEKNRVLV
LTDILRGRGDFAAEWVLVAQKVSNNARWILRNINEVLQHYGSGDISLSPRGSINFGRVTIQRKGGDNGRETANMLQFKID
PTELFDI

30% PEG4000, 100mM Tris pH 8.5, 0.2M Li2SO4, 20mM CaCl2, VAPOR DIFFUSION, HANGING DROP, temperature 289K

The same protein but not complexed with cognate DNA and metal ion.

Synthesized Self-Annealing Oligonucleotide

RESTRICTION ENDONUCLEASE, PROTEIN DIMERIZATON, DNA SUPERHELIX, PROTEIN-DNA-METAL ION COMPLEX, HYDROLASE-DNA COMPLEX