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RESEARCH PRODUCT
Folding and stability of the aquaglyceroporin GlpF: Implications for human aqua(glycero)porin diseases
Jennifer NeumannJoe D. O'neilNoreen KleinDirk Schneidersubject
Models MolecularProtein activityAmino Acid MotifsMolecular Sequence DataBiophysicsGene ExpressionPorinsAquaporinDiabetes Insipidus NephrogenicEndoplasmic-reticulum-associated protein degradationAquaporinsBiochemistryCataractProtein Structure SecondaryProtein structureNeoplasmsEscherichia coliGlpFHumansProtein foldingConserved SequenceProtein StabilityChemistryurogenital systemEscherichia coli ProteinsAquaporinWaterCell BiologyTransmembrane proteinCell biologyFolding (chemistry)Membrane proteinBiochemistryMembrane proteinPorinProtein foldingdescription
AbstractAquaporins are highly selective polytopic transmembrane channel proteins that facilitate the permeation of water across cellular membranes in a large diversity of organisms. Defects in aquaporin function are associated with common diseases, such as nephrogenic diabetes insipidus, congenital cataract and certain types of cancer. In general, aquaporins have a highly conserved structure; from prokaryotes to humans. The conserved structure, together with structural dynamics and the structural framework for substrate selectivity is discussed. The folding pathway of aquaporins has been a topic of several studies in recent years. These studies revealed that a conserved protein structure can be reached by following different folding pathways. Based on the available data, we suggest a complex folding pathway for aquaporins, starting from the insertion of individual helices up to the formation of the tetrameric aquaporin structure. The consequences of some known mutations in human aquaporin-encoding genes, which most likely affect the folding and stability of human aquaporins, are discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-02-01 | Biochimica et Biophysica Acta (BBA) - Biomembranes |