Crystallization and preliminary X-ray diffraction studies of the guanylate kinase-like domain of PSD-95 protein from rat.
The PSD-95 (postsynaptic density-95) protein, one of the members of the MAGUK (membrane-associated guanylate kinase) family, is composed of three PDZ domains, one SH3 domain and one guanylate kinase-like (GK) domain. The GK domain mediates the scaffolding function of PSD-95 by protein--protein interaction. Here, the GK domain was subcloned, expressed as an intein fusion protein, purified without the intein and then crystallized at room temperature by the hanging-drop vapour-diffusion method using PEG 8000 as a precipitant. The complete native data set was collected to a resolution of 2.35 A using flash-cooling. The crystals belong to the primitive tetragonal space group P4(3) (or P4(1)), with unit-cell parameters a = b = 70.03 (4), c = 37.64 (1) A.
Department of Life Science, Kwangju Institute of Science and Technology, Kwangju 500-712, South Korea.
J J
JJ
Kim
S H
SH
Rho
Y J
YJ
Im
E J
EJ
Kim
S H
SH
Eom
D000818:Animals; D002846:Chromatography, Affinity; D003460:Crystallization; D000076122:Disks Large Homolog 4 Protein; D051528:Guanylate Kinases; D047908:Intracellular Signaling Peptides and Proteins; D008565:Membrane Proteins; D009419:Nerve Tissue Proteins / Q000737:chemistry* / Q000302:isolation & purification; D009703:Nucleoside-Phosphate Kinase / Q000737:chemistry*; D017434:Protein Structure, Tertiary; D051381:Rats; D011993:Recombinant Fusion Proteins / Q000737:chemistry / Q000302:isolation & purification; D013379:Substrate Specificity; D014961:X-Ray Diffraction
D000076122:Disks Large Homolog 4 Protein; C501449:Dlg4 protein, rat; D047908:Intracellular Signaling Peptides and Proteins; D008565:Membrane Proteins; C501451:Mpp2 protein, rat; D009419:Nerve Tissue Proteins; D011993:Recombinant Fusion Proteins; C033652:postsynaptic density proteins; D009703:Nucleoside-Phosphate Kinase; D051528:Guanylate Kinases