2KYV

Hybrid solution and solid-state NMR structure ensemble of phospholamban pentamer

Domain Annotation: CATH CATH Database (version 4.2.0) Homepage

Chain	Domain	Class	Architecture	Topology	Homology
A	1.20.5.290	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Phospholamban
B	1.20.5.290	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Phospholamban
C	1.20.5.290	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Phospholamban
D	1.20.5.290	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Phospholamban
E	1.20.5.290	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Phospholamban

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Identifier	Description	Comments	Source
A, B, C, D, E	PF04272	Phospholamban (Phospholamban)	Phospholamban	The regulation of calcium levels across the membrane of the sarcoplasmic reticulum involves the interplay of many membrane proteins. Phospholamban is a 52 residue integral membrane protein that is involved in reversibly inhibiting the Ca(2+) pump and ...	The regulation of calcium levels across the membrane of the sarcoplasmic reticulum involves the interplay of many membrane proteins. Phospholamban is a 52 residue integral membrane protein that is involved in reversibly inhibiting the Ca(2+) pump and regulating the flow of Ca ions across the sarcoplasmic reticulum membrane during muscle contraction and relaxation [1]. Phospholamban is thought to form a pentamer in the membrane [1].	Domain

Gene Product Annotation Gene Product Annotation

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E	Phospholamban	binding protein binding enzyme binding ATPase binding enzyme inhibitor activity enzyme regulator activity ATPase inhibitor activity nucleoside-triphosphatase regulator activity ATPase regulator activity molecular function regulator identical protein binding protein homodimerization activity protein dimerization activity	negative regulation of ATPase activity negative regulation of catalytic activity regulation of ATPase activity negative regulation of molecular function regulation of catalytic activity regulation of hydrolase activity negative regulation of hydrolase activity biological regulation regulation of molecular function regulation of binding negative regulation of binding regulation of calcium ion binding negative regulation of calcium ion binding	membrane integral component of membrane intrinsic component of membrane protein-containing complex cation-transporting ATPase complex calcium ion-transporting ATPase complex membrane protein complex cellular anatomical entity transmembrane transporter complex transporter complex intracellular anatomical structure cytoplasm endoplasmic reticulum endomembrane system organelle membrane-bounded organelle intracellular organelle intracellular membrane-bounded organelle mitochondrion mitochondrial envelope organelle membrane mitochondrial membrane organelle envelope envelope perinuclear region of cytoplasm endoplasmic reticulum membrane sarcoplasm sarcoplasmic reticulum organelle subcompartment sarcoplasmic reticulum membrane nuclear outer membrane-endoplasmic reticulum membrane network bounding membrane of organelle endoplasmic reticulum subcompartment

RCSB PDB is funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.