Unknown

Dataset Information

0

Frequency response of a protein to local conformational perturbations.


ABSTRACT: Signals created by local perturbations are known to propagate long distances through proteins via backbone connectivity and nonbonded interactions. In the current study, signal propagation from the flexible ligand binding loop to the rest of Protein Tyrosine Phosphatase 1B (PTP1B) was investigated using frequency response techniques. Using restrained Targeted Molecular Dynamics (TMD) potential on WPD and R loops, PTP1B was driven between its crystal structure conformations at different frequencies. Propagation of the local perturbation signal was manifested via peaks at the fundamental frequency and upper harmonics of 1/f distributed spectral density of atomic variables, such as C? atoms, dihedral angles, or polar interaction distances. Frequency of perturbation was adjusted high enough (simulation length >?10×period of a perturbation cycle) not to be clouded by random diffusional fluctuations, and low enough (

SUBMITTER: Eren D 

PROVIDER: S-EPMC3784495 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

altmetric image

Publications

Frequency response of a protein to local conformational perturbations.

Eren Dilek D   Alakent Burak B  

PLoS computational biology 20130926 9


Signals created by local perturbations are known to propagate long distances through proteins via backbone connectivity and nonbonded interactions. In the current study, signal propagation from the flexible ligand binding loop to the rest of Protein Tyrosine Phosphatase 1B (PTP1B) was investigated using frequency response techniques. Using restrained Targeted Molecular Dynamics (TMD) potential on WPD and R loops, PTP1B was driven between its crystal structure conformations at different frequenci  ...[more]

Similar Datasets

| S-EPMC8508695 | biostudies-literature
| S-EPMC2660149 | biostudies-literature
| S-EPMC1239910 | biostudies-literature
| S-EPMC3354986 | biostudies-literature
| S-EPMC6353097 | biostudies-literature
| S-EPMC2913187 | biostudies-literature
| S-EPMC10821772 | biostudies-literature
| S-EPMC6266865 | biostudies-literature
| S-EPMC9935019 | biostudies-literature
| S-EPMC3191767 | biostudies-literature