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Linking Biochemical and Structural States of SERCA: Achievements, Challenges, and New Opportunities

Aguayo-Ortiz, Rodrigo ; Espinoza-Fonseca, L Michel

International journal of molecular sciences, 2020-06, Vol.21 (11), p.4146 [Periódico revisado por pares]

Switzerland: MDPI AG

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Título:
Linking Biochemical and Structural States of SERCA: Achievements, Challenges, and New Opportunities
Autor: Aguayo-Ortiz, Rodrigo ; Espinoza-Fonseca, L Michel
Assuntos: Active transport ; Adenosine Triphosphate - metabolism ; Animals ; Binding Sites ; Biochemistry ; Ca2+-transporting ATPase ; calcium ; Calcium ions ; Calcium transport ; Computer applications ; Computer simulation ; Crystal structure ; Crystallography ; Crystallography, X-Ray ; Cytoplasm ; Endoplasmic reticulum ; Enzyme Inhibitors - chemistry ; Enzyme Inhibitors - metabolism ; Enzyme kinetics ; Homology ; Humans ; inhibition ; Lipids ; Muscles ; Musculoskeletal system ; P-type ATPase ; Phosphorylation ; Protein Conformation ; Protein Domains ; Proteins ; regulation ; Regulators ; Review ; Sarcoplasmic reticulum ; Sarcoplasmic Reticulum Calcium-Transporting ATPases - antagonists & inhibitors ; Sarcoplasmic Reticulum Calcium-Transporting ATPases - chemistry ; Sarcoplasmic Reticulum Calcium-Transporting ATPases - metabolism ; SERCA ; Spectroscopy ; Structure-function relationships ; Thapsigargin - chemistry ; Thapsigargin - metabolism ; X-ray crystallography
É parte de: International journal of molecular sciences, 2020-06, Vol.21 (11), p.4146
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-3
content type line 23
ObjectType-Review-1
Descrição: Sarcoendoplasmic reticulum calcium ATPase (SERCA), a member of the P-type ATPase family of ion and lipid pumps, is responsible for the active transport of Ca from the cytoplasm into the sarcoplasmic reticulum lumen of muscle cells, into the endoplasmic reticulum (ER) of non-muscle cells. X-ray crystallography has proven to be an invaluable tool in understanding the structural changes of SERCA, and more than 70 SERCA crystal structures representing major biochemical states (defined by bound ligand) have been deposited in the Protein Data Bank. Consequently, SERCA is one of the best characterized components of the calcium transport machinery in the cell. Emerging approaches in the field, including spectroscopy and molecular simulation, now help integrate and interpret this rich structural information to understand the conformational transitions of SERCA that occur during activation, inhibition, and regulation. In this review, we provide an overview of the crystal structures of SERCA, focusing on identifying metrics that facilitate structure-based categorization of major steps along the catalytic cycle. We examine the integration of crystallographic data with different biophysical approaches and computational methods to link biochemical and structural states of SERCA that are populated in the cell. Finally, we discuss the challenges and new opportunities in the field, including structural elucidation of functionally important and novel regulatory complexes of SERCA, understanding the structural basis of functional divergence among homologous SERCA regulators, and bridging the gap between basic and translational research directed toward therapeutic modulation of SERCA.
Editor: Switzerland: MDPI AG
Idioma: Inglês

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Linking Biochemical and Structural States of SERCA: Achievements, Challenges, and New Opportunities

Aguayo-Ortiz, Rodrigo ; Espinoza-Fonseca, L Michel

Switzerland: MDPI AG

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