X-ray studies on crystalline complexes involving amino acids and peptides. XXIII. Variability in ionization state, conformation and molecular aggregation in the complexes of succinic acid with DL- and L-lysine [0.03%]
氨基酸和多肽结晶复合物的X射线研究。XXIII. DL-和L-赖氨酸与琥珀酸复盐离子化状态、构象及分子聚集体的变化性研究表明
G S Prasad,M Vijayan
G S Prasad
Crystalline complexes of succinic acid with DL- and L-lysine have been prepared and analysed by X-ray diffraction. DL-Lysine complex: C6H15N2O2+.-1/2C4H4O4(2-).1/2C4H6O4, Mr = 264.2, P1, a = 5.506 (4), b = 8.070 (2), c = 14.089 (2) A, alpha...
Structure solution and molecular dynamics refinement of the yeast Cu,Zn enzyme superoxide dismutase [0.03%]
酵母Cu,Zn超氧化物歧化酶的结构测定及分子动力学优化
K Djinović,G Gatti,A Coda et al.
K Djinović et al.
Cu,Zn yeast superoxide dismutase was crystallized from polyethylene glycol solutions. The crystals belong to the P2(1)2(1)2 space group, with cell dimensions a = 105.3, b = 143.0, c = 62.1 A; two dimers of Mr = 32,000 each are contained in ...
C I Brändén,Y Lindqvist,G Schneider
C I Brändén
Modification of the kinetic parameters of enzymes by protein engineering requires extensive knowledge of the structural details of the enzyme and its complexes with different reaction intermediate analogues. Such structural studies are desc...
Low-resolution models for ribosomal particles reconstructed from electron micrographs of tilted two-dimensional sheets [0.03%]
根据二维倾斜薄片的电子显微镜照片重建核糖体颗粒的低分辨率模型
Z Berkovitch-Yellin,H G Wittmann,A Yonath
Z Berkovitch-Yellin
Models of the whole ribosome (70S) and its large subunit (50S) were obtained at low resolution (47 and 28 A respectively) by three-dimensional image reconstruction using diffraction data collected from electron micrographs of two-dimensiona...
The use of single-wavelength anomalous scattering to solve the crystal structure of a gramicidin A/caesium chloride complex [0.03%]
单波长色散法测定杀念球菌素A/氯化铯复盐晶体结构的研究
B A Wallace,W A Hendrickson,K Ravikumar
B A Wallace
Single-wavelength Cu K alpha anomalous scattering has been used to determine the structure of a crystalline complex of gramicidin A and caesium chloride. The asymmetric unit in these crystals, with space group P2(1)2(1)2(1) and a = 32.118 (...
Characterization of two crystal forms of cytochrome c from Valida membranaefaciens [0.03%]
来自Valdivia膜形成菌的两种细胞色素c晶体形式的表征
J Day,A McPherson
J Day
Two different crystal forms of cytochrome c from the yeast Valida membranaefaciens have been grown by vapor diffusion from polyethylene glycol 4000. Both have been characterized by X-ray diffraction. The first crystal form was grown at 277 ...
Determination and restrained least-squares refinement of the structures of ribonuclease Sa and its complex with 3'-guanylic acid at 1.8 A resolution [0.03%]
1.8埃分辨率的核糖核酸酶Sa及其与3'-鸟苷酸复台物结构的限定和受约束最小二乘优化法 refinements
J Sevcik,E J Dodson,G G Dodson
J Sevcik
The crystal structures of ribonuclease from Streptomyces aureofaciens (RNase Sa) and its complex with 3'-guanylic acid (guanosine 3'-monophosphate, 3'-GMP) have been determined by the method of isomorphous replacement. The atomic parameters...
J Tsao,M S Chapman,H Wu et al.
J Tsao et al.
The three-dimensional structure of the single-stranded DNA canine parvovirus has been determined to 3.25 A resolution. Monoclinic crystals belonging to space group P2(1) (a = 263.1, b = 348.9, c = 267.2 A, beta = 90.82 degrees) were selecte...
The segmented anisotropic refinement of monoclinic papain by the application of the rigid-body TLS model and comparison to bovine ribonuclease A [0.03%]
单斜构象巴豆蛋白的分段各向异性精修正刚体TLS模型并与牛核糖核酸酶A比较
G W Harris,R W Pickersgill,B Howlin et al.
G W Harris et al.
The anisotropic displacements of selected rigid groups in monoclinic papain have been refined from X-ray diffraction data by application of the rigid-body TLS model. The rigid groups chosen were the aromatic side chains of tryptophan, tyros...
Refinement of rubredoxin from Desulfovibrio vulgaris at 1.0 A with and without restraints [0.03%]
restrained和无约束的副氏肠杆菌rubredoxin的1.0埃结构精修
Z Dauter,L C Sieker,K S Wilson
Z Dauter
X-ray data have been recorded from crystals of rubredoxin derived from the bacterium Desulfovibrio vulgaris to a resolution of 1.0 A using in part synchrotron radiation and in part X-rays from a sealed-tube Mo K alpha source. In both cases ...