| pubmed-article:19287002 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:19287002 | lifeskim:mentions | umls-concept:C0085356 | lld:lifeskim |
| pubmed-article:19287002 | lifeskim:mentions | umls-concept:C1707176 | lld:lifeskim |
| pubmed-article:19287002 | lifeskim:mentions | umls-concept:C0033684 | lld:lifeskim |
| pubmed-article:19287002 | lifeskim:mentions | umls-concept:C0017857 | lld:lifeskim |
| pubmed-article:19287002 | lifeskim:mentions | umls-concept:C1332826 | lld:lifeskim |
| pubmed-article:19287002 | lifeskim:mentions | umls-concept:C1414968 | lld:lifeskim |
| pubmed-article:19287002 | lifeskim:mentions | umls-concept:C0205369 | lld:lifeskim |
| pubmed-article:19287002 | lifeskim:mentions | umls-concept:C0205355 | lld:lifeskim |
| pubmed-article:19287002 | pubmed:issue | 19 | lld:pubmed |
| pubmed-article:19287002 | pubmed:dateCreated | 2009-5-4 | lld:pubmed |
| pubmed-article:19287002 | pubmed:abstractText | A new role is reported for CP12, a highly unfolded and flexible protein, mainly known for its redox function with A(4) glyceraldehyde-3-phosphate dehydrogenase (GAPDH). Both reduced and oxidized CP12 can prevent the in vitro thermal inactivation and aggregation of GAPDH from Chlamydomonas reinhardtii. This mechanism is thus not redox-dependent. The protection is specific to CP12, because other proteins, such as bovine serum albumin, thioredoxin, and a general chaperone, Hsp33, do not fully prevent denaturation of GAPDH. Furthermore, CP12 acts as a specific chaperone, since it does not protect other proteins, such as catalase, alcohol dehydrogenase, or lysozyme. The interaction between CP12 and GAPDH is necessary to prevent the aggregation and inactivation, since the mutant C66S that does not form any complex with GAPDH cannot accomplish this protection. Unlike the C66S mutant, the C23S mutant that lacks the N-terminal bridge is partially able to protect and to slow down the inactivation and aggregation. Tryptic digestion coupled to mass spectrometry confirmed that the S-loop of GAPDH is the interaction site with CP12. Thus, CP12 not only has a redox function but also behaves as a specific "chaperone-like protein" for GAPDH, although a stable and not transitory interaction is observed. This new function of CP12 may explain why it is also present in complexes involving A(2)B(2) GAPDHs that possess a regulatory C-terminal extension (GapB subunit) and therefore do not require CP12 to be redox-regulated. | lld:pubmed |
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| pubmed-article:19287002 | pubmed:language | eng | lld:pubmed |
| pubmed-article:19287002 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:19287002 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:19287002 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:19287002 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:19287002 | pubmed:month | May | lld:pubmed |
| pubmed-article:19287002 | pubmed:issn | 0021-9258 | lld:pubmed |
| pubmed-article:19287002 | pubmed:author | pubmed-author:GonteroBrigit... | lld:pubmed |
| pubmed-article:19287002 | pubmed:author | pubmed-author:EralesJennyJ | lld:pubmed |
| pubmed-article:19287002 | pubmed:author | pubmed-author:LignonSabrina... | lld:pubmed |
| pubmed-article:19287002 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:19287002 | pubmed:day | 8 | lld:pubmed |
| pubmed-article:19287002 | pubmed:volume | 284 | lld:pubmed |
| pubmed-article:19287002 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:19287002 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:19287002 | pubmed:pagination | 12735-44 | lld:pubmed |
| pubmed-article:19287002 | pubmed:dateRevised | 2010-9-22 | lld:pubmed |
