Schmidt, M., Rutkat, K., Rachel, Reinhard, Pfeifer, G., Jaenicke, R., Viitanen, P., Lorimer, G. and Buchner, J.
(1994)
Symmetric complexes of GroE chaperonins as part of the functional cycle.
Science (New York, N.Y.) 265 (5172), pp. 656-659.
Full text not available from this repository.
at PubMed
Abstract
The particular structural arrangement of chaperonins probably contributes to their ability to assist in the folding of proteins. The interaction of the oligomeric bacterial chaperonin GroEL and its cochaperonin, GroES, in the presence of adenosine diphosphate (ADP) forms an asymmetric complex. However, in the presence of adenosine triphosphate (ATP) or its nonhydrolyzable analogs, symmetric ...
Abstract
The particular structural arrangement of chaperonins probably contributes to their ability to assist in the folding of proteins. The interaction of the oligomeric bacterial chaperonin GroEL and its cochaperonin, GroES, in the presence of adenosine diphosphate (ADP) forms an asymmetric complex. However, in the presence of adenosine triphosphate (ATP) or its nonhydrolyzable analogs, symmetric complexes were found by electron microscopy and image analysis. The existence of symmetric chaperonin complexes is not predicted by current models of the functional cycle for GroE-mediated protein folding. Because complete folding of a nonnative substrate protein in the presence of GroEL and GroES only occurs in the presence of ATP, but not with ADP, the symmetric chaperonin complexes formed during the GroE cycle are proposed to be functionally significant.
Export bibliographical data
| Item type: | Article |
|---|
| Date: | 1994 |
|---|
| Institutions: | UNSPECIFIED |
|---|
| Identification Number: | | Value | Type |
|---|
| 7913554 | PubMed ID |
|
|---|
| Classification: | | Notation | Type |
|---|
| Adenosine Diphosphate/pharmacology | MESH | | Adenosine Triphosphatases/metabolism | MESH | | Adenosine Triphosphate/metabolism | MESH | | Bacterial Proteins/ultrastructure | MESH | | Biopolymers | MESH | | Chaperonin 10 | MESH | | Chaperonin 60 | MESH | | Heat-Shock Proteins/ultrastructure | MESH | | Hydrolysis | MESH | | Microscopy, Electron | MESH | | Protein Binding | MESH |
|
|---|
| Dewey Decimal Classification: | UNSPECIFIED |
|---|
| Status: | Published |
|---|
| Refereed: | Unknown |
|---|
| Created at the University of Regensburg: | Unknown |
|---|
| Item ID: | 13267 |
|---|
Altmetric