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NDB ID: PD0044    PDB ID: 3PJR 


Title:

HELICASE SUBSTRATE COMPLEX

Molecular Description:

HELICASE PCRA (E.C. 3.6.1.-)/DNA COMPLEX

Structural Keywords:

RH DOUBLE HELIX, FLIPPED-OUT BASES, OVERHANGING BASES

Nucleic Acid Sequence:

Click to show/hide 2 nucleic acid sequences

Protein Sequence:

Click to show/hide 1 protein sequences

Primary Citation:

Velankar, S.S., Soultanas, P., Dillingham, M.S., Subramanya, H.S., Wigley, D.B.
Crystal structures of complexes of PcrA DNA helicase with a DNA substrate indicate an inchworm mechanism 
Cell(Cambridge,Mass.), 97, pp. 75 - 98, 1999.

Experimental Information:

X-RAY DIFFRACTION

Space Group:

P 61 2 2

Cell Constants:

a = 105.12   b = 105.12   c = 380.8 (Ångstroms)

α = 90.0   β = 90.0   γ = 120.0 (degrees)

Refinement:

The structure was refined using the REFMAC program. The R value is 0.0 for 17365 reflections in the resolution range 10.0 to 3.3 Ångstroms with Fobs >  0.0 sigma(Fobs) and with I >  0.0 sigma(I)