Crystallization and preliminary X-ray diffraction analysis of the P3 RNA domain of yeast ribonuclease MRP in a complex with RNase P/MRP protein components Pop6 and Pop7.
Eukaryotic ribonucleases P and MRP are closely related RNA-based enzymes which contain a catalytic RNA component and several protein subunits. The roles of the protein subunits in the structure and function of eukaryotic ribonucleases P and MRP are not clear. Crystals of a complex that included a circularly permuted 46-nucleotide-long P3 domain of the RNA component of Saccharomyces cerevisiae ribonuclease MRP and selenomethionine derivatives of the shared ribonuclease P/MRP protein components Pop6 (18.2 kDa) and Pop7 (15.8 kDa) were obtained using the sitting-drop vapour-diffusion method. The crystals belonged to space group P4(2)22 (unit-cell parameters a = b = 127.2, c = 76.8 A, alpha = beta = gamma = 90 degrees ) and diffracted to 3.25 A resolution.
Perederina
Anna
A
Department of Biochemistry and Molecular Biology, Pennsylvania State University, USA.
Esakova
Olga
O
Quan
Chao
C
Khanova
Elena
E
Krasilnikov
Andrey S
AS
D003460:Crystallization; D018360:Crystallography, X-Ray; D004722:Endoribonucleases / Q000737:chemistry*; D017434:Protein Structure, Tertiary; D043262:Ribonuclease P / Q000737:chemistry*; D012441:Saccharomyces cerevisiae / Q000201:enzymology
D004722:Endoribonucleases; C058330:mitochondrial RNA-processing endoribonuclease; D043262:Ribonuclease P