Three-dimensional structures of human phospholipase A2 from pancreas and synovial fluid by model building

TY - JOUR

T1 - Three-dimensional structures of human phospholipase A2 from pancreas and synovial fluid by model building

AU - Christensen, I T

AU - Jørgensen, Flemming Steen

AU - Svensson, L A

AU - Högberg, T

PY - 1993

Y1 - 1993

N2 - Three-dimensional structures of the enzyme phospholipase A2 (PLA2) from human pancreas and from human synovial fluid were constructed by model building based on high-resolution X-ray crystallographic structures and homology considerations. The structure of the human pancreatic PLA2 was based on the X-ray structure of the highly homologous bovine pancreatic PLA2 (Type I) by amino acid substitution and modification of the C-terminal part followed by geometry relaxation. The structure of the PLA2 from human synovial fluid was constructed from the X-ray structure of PLA2 from Crotalus atrox (Type II) by modification of the calcium binding loop, amino acid substitution, and insertion of two additional amino acid residues followed by geometry relaxation. The structure of the two human PLA2's have been compared and their use as targets for rational design of enzyme inhibitors discussed.

AB - Three-dimensional structures of the enzyme phospholipase A2 (PLA2) from human pancreas and from human synovial fluid were constructed by model building based on high-resolution X-ray crystallographic structures and homology considerations. The structure of the human pancreatic PLA2 was based on the X-ray structure of the highly homologous bovine pancreatic PLA2 (Type I) by amino acid substitution and modification of the C-terminal part followed by geometry relaxation. The structure of the PLA2 from human synovial fluid was constructed from the X-ray structure of PLA2 from Crotalus atrox (Type II) by modification of the calcium binding loop, amino acid substitution, and insertion of two additional amino acid residues followed by geometry relaxation. The structure of the two human PLA2's have been compared and their use as targets for rational design of enzyme inhibitors discussed.

KW - Amino Acid Sequence

KW - Animals

KW - Binding Sites

KW - Calcium

KW - Crotalus

KW - Humans

KW - Models, Molecular

KW - Molecular Sequence Data

KW - Pancreas

KW - Phospholipases A

KW - Phospholipases A2

KW - Protein Conformation

KW - Sequence Alignment

KW - Synovial Fluid

KW - Thermodynamics

M3 - Journal article

C2 - 8399996

SN - 1055-9612

VL - 10

SP - 101

EP - 113

JO - Drug Design and Discovery

JF - Drug Design and Discovery

IS - 2

ER -