Lee J H, Bechtel P J, Phillips G N
J Biol Chem. 1985 Aug 5;260(16):9380-1.
Crystals of type I cAMP-dependent protein kinase regulatory subunit have been grown from solutions of ammonium sulfate. The crystals are square bipyramids, space group P4(1)2(1)2 (P4(3)2(1)2), with a = b = 106.9 +/- 0.6 A and c = 212.4 +/- 1.0 A. There are two dimers of the regulatory subunit/crystallographic asymmetric unit. The crystals are stable for 3-4 days in the x-ray beam and diffract to at least 3.5-A resolution.
I型环磷酸腺苷依赖蛋白激酶调节亚基的晶体已从硫酸铵溶液中生长出来。晶体为四方双锥体，空间群为P4(1)2(1)2（P4(3)2(1)2），a = b = 106.9 +/- 0.6 Å，c = 212.4 +/- 1.0 Å。每个晶体学不对称单元中有两个调节亚基二聚体。这些晶体在X射线束中可稳定3 - 4天，衍射分辨率至少达到3.5 Å。
