T. A. Darden

Publication List Details

Period

2008 - 2008

Number

21

Co-Authors

Atomic-level accuracy in simulations of large protein crystals.

York, D M, Wlodawer, A, Pedersen, L G, Darden, T A

Proper treatment of long-range Coulombic forces presents a major obstacle to providing realistic molecular dynamics simulations of macromolecules. Traditional approximations made to lessen...

Multiple steroid-binding orientations: alteration of regiospecificity of dehydroepiandrosterone 2- and 7-hydroxylase activities of cytochrome P-450 2a-5 by mutation of residue 209.

Iwasaki, M, Davis, D G, Darden, T A, Pedersen, L G, Negishi, M

The mutation of Ala-117 to Val conferred dehydroepiandrosterone (DHEA) hydroxylase activity on cytochrome P-450 2a-4, with the production of both 2 alpha- and 7 alpha-hydroxyDHEA at similar rates....

An atomic model for the pleated beta-sheet structure of Abeta amyloid protofilaments.

Li, L, Darden, T A, Bartolotti, L, Kominos, D, Pedersen, L G

Synchrotron x-ray studies on amyloid fibrils have suggested that the stacked pleated beta-sheets are twisted so that a repeating unit of 24 beta-strands forms a helical turn around the fibril axis (....

Probing the structural changes in the light chain of human coagulation factor VIIa due to tissue factor association.

Perera, L, Darden, T A, Pedersen, L G

The crystallographic structure of human coagulation factor VIIa/tissue factor complex bound with calcium ions was used to model the solution structure of the light chain of factor VIIa (residues...

Molecular dynamics simulations of the d(CCAACGTTGG)(2) decamer: influence of the crystal environment.

Bevan, D R, Li, L, Pedersen, L G, Darden, T A

Molecular dynamics (MD) simulations of the DNA duplex d(CCAACGTTGG)(2) were used to study the relationship between DNA sequence and structure. Two crystal simulations were carried out; one consisted...

Heparan sulfate biosynthesis: a theoretical study of the initial sulfation step by N-deacetylase/N-sulfotransferase.

Gorokhov, A, Perera, L, Darden, T A, Negishi, M, Pedersen, L C, Pedersen, L G

Heparan sulfate N-deacetylase/N-sulfotransferase (NDST) catalyzes the deacetylation and sulfation of N-acetyl-D-glucosamine residues of heparan sulfate, a key step in its biosynthesis. Recent...

Modeling zymogen protein C.

Perera, L, Foley, C, Darden, T A, Stafford, D, Mather, T, Esmon, C T, ...

A solution structure for the complete zymogen form of human coagulation protein C is modeled. The initial core structure is based on the x-ray crystallographic structure of the gamma-carboxyglutamic...

Selected new developments in computational chemistry.

Darden, T A, Bartolotti, L, Pedersen, L G

Molecular dynamics is a general technique for simulating the time-dependent properties of molecules and their environments. Quantum mechanics, as applied to molecules or clusters of molecules,...

Molecular modeling studies suggest that zinc ions inhibit HIV-1 protease by binding at catalytic aspartates.

York, D M, Darden, T A, Pedersen, L G, Anderson, M W

Human immunodeficiency virus type 1 protease is inhibited in vitro by zinc ions at neutral pH. The binding site of these ions is not known; however, experimental data suggest that binding may occur...

Atomic-level accuracy in simulations of large protein crystals.

York, D M, Wlodawer, A, Pedersen, L G, Darden, T A

Proper treatment of long-range Coulombic forces presents a major obstacle to providing realistic molecular dynamics simulations of macromolecules. Traditional approximations made to lessen...

Multiple steroid-binding orientations: alteration of regiospecificity of dehydroepiandrosterone 2- and 7-hydroxylase activities of cytochrome P-450 2a-5 by mutation of residue 209.

Iwasaki, M, Davis, D G, Darden, T A, Pedersen, L G, Negishi, M

The mutation of Ala-117 to Val conferred dehydroepiandrosterone (DHEA) hydroxylase activity on cytochrome P-450 2a-4, with the production of both 2 alpha- and 7 alpha-hydroxyDHEA at similar rates....

An atomic model for the pleated beta-sheet structure of Abeta amyloid protofilaments.

Li, L, Darden, T A, Bartolotti, L, Kominos, D, Pedersen, L G

Synchrotron x-ray studies on amyloid fibrils have suggested that the stacked pleated beta-sheets are twisted so that a repeating unit of 24 beta-strands forms a helical turn around the fibril axis (....

Probing the structural changes in the light chain of human coagulation factor VIIa due to tissue factor association.

Perera, L, Darden, T A, Pedersen, L G

The crystallographic structure of human coagulation factor VIIa/tissue factor complex bound with calcium ions was used to model the solution structure of the light chain of factor VIIa (residues...

Molecular dynamics simulations of the d(CCAACGTTGG)(2) decamer: influence of the crystal environment.

Bevan, D R, Li, L, Pedersen, L G, Darden, T A

Molecular dynamics (MD) simulations of the DNA duplex d(CCAACGTTGG)(2) were used to study the relationship between DNA sequence and structure. Two crystal simulations were carried out; one consisted...

Heparan sulfate biosynthesis: a theoretical study of the initial sulfation step by N-deacetylase/N-sulfotransferase.

Gorokhov, A, Perera, L, Darden, T A, Negishi, M, Pedersen, L C, Pedersen, L G

Heparan sulfate N-deacetylase/N-sulfotransferase (NDST) catalyzes the deacetylation and sulfation of N-acetyl-D-glucosamine residues of heparan sulfate, a key step in its biosynthesis. Recent...

Modeling zymogen protein C.

Perera, L, Foley, C, Darden, T A, Stafford, D, Mather, T, Esmon, C T, ...

A solution structure for the complete zymogen form of human coagulation protein C is modeled. The initial core structure is based on the x-ray crystallographic structure of the gamma-carboxyglutamic...

Selected new developments in computational chemistry.

Darden, T A, Bartolotti, L, Pedersen, L G

Molecular dynamics is a general technique for simulating the time-dependent properties of molecules and their environments. Quantum mechanics, as applied to molecules or clusters of molecules,...

Molecular modeling studies suggest that zinc ions inhibit HIV-1 protease by binding at catalytic aspartates.

York, D M, Darden, T A, Pedersen, L G, Anderson, M W

Human immunodeficiency virus type 1 protease is inhibited in vitro by zinc ions at neutral pH. The binding site of these ions is not known; however, experimental data suggest that binding may occur...