Loading...
Please wait, while we are loading the content...
Similar Documents
A cryoprotectant induces conformational change in glyceraldehyde-3-phosphate dehydrogenase
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kim, Yong Ju |
| Copyright Year | 2018 |
| Abstract | Glyceraldehyde-3-phosphate dehydrogenase (GAPDH), a glycolytic enzyme, catalyses the conversion of D-glyceraldehyde 3-phosphate to 1,3-bisphosphoglycerate. While mammalian and yeast GAPDHs are multifunctional proteins that have additional functions beyond those involved in glycolysis, including reactions related to nuclear RNA transport, DNA replication/repair, membrane fusion and cellular apoptosis, Escherichia coli GAPDH (ecGAPDH) has only been reported to function in glycolysis. The S-loop of GAPDH is required for interaction with its cofactor and with other proteins. In this study, the three-dimensional crystal structure of GAPDH treated with trehalose is reported at 2.0 Å resolution. Trehalose was used as a cryoprotectant for the GAPDH crystals. The structure of trehalose-bound ecGAPDH was compared with the structures of both NAD+-free and NAD+-bound ecGAPDH. At the S-loop, the bound trehalose in the GAPDH structure induces a 2.4° rotation compared with the NAD+-free ecGAPDH structure and a 3.1° rotation compared with the NAD+-bound ecGAPDH structure. |
| Starting Page | 277 |
| Ending Page | 282 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://journals.iucr.org/f/issues/2018/05/00/ek5003/ek5003.pdf |
| PubMed reference number | 29717994 |
| Alternate Webpage(s) | https://doi.org/10.1107/S2053230X18004557 |
| DOI | 10.1107/S2053230X18004557 |
| Journal | Acta crystallographica. Section F, Structural biology communications |
| Volume Number | 74 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Apoptosis Catalysis DNA Replication Glyceraldehyde 3-Phosphate Glyceraldehyde-3-phosphate dehydrogenase Glycolysis Mammals Membrane Fusion RNA Transport Trehalose chemical cofactor glycerate 1,3-biphosphate |
| Content Type | Text |
| Resource Type | Article |