1BKR

CALPONIN HOMOLOGY (CH) DOMAIN FROM HUMAN BETA-SPECTRIN AT 1.1 ANGSTROM RESOLUTION

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1bkra_	All alpha proteins	CH domain-like	Calponin-homology domain, CH-domain	Calponin-homology domain, CH-domain	beta-spectrin	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Calponin-homology domain, type 1/2 family	8025025	4004022	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Calponin-homology domain, CH-domain	8037404	3000264	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	CH	e1bkrA1	A: alpha bundles	X: CH domain-like	H: Calponin-homology domain-like (From Topology)	T: Calponin-homology domain-like	F: CH	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.418.10	Mainly Alpha	Orthogonal Bundle	Actin-binding Protein, T-fimbrin	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00307	Calponin homology (CH) domain (CH)	Calponin homology (CH) domain	The CH domain is found in both cytoskeletal proteins and signal transduction proteins [1]. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its ac ...	The CH domain is found in both cytoskeletal proteins and signal transduction proteins [1]. The CH domain is involved in actin binding in some members of the family. However in calponins there is evidence that the CH domain is not involved in its actin binding activity [4]. Most member proteins have from two to four copies of the CH domain, however some proteins such as calponin and Swiss:P15498 have only a single copy.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	SPECTRIN BETA CHAIN	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding ankyrin binding phospholipid binding lipid binding RNA binding nucleic acid binding enzyme binding GTPase binding cell adhesion molecule binding cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding ankyrin binding phospholipid binding lipid binding RNA binding nucleic acid binding enzyme binding GTPase binding cell adhesion molecule binding cadherin binding calmodulin binding structural constituent of cytoskeleton structural molecule activity	protein localization Golgi to plasma membrane transport establishment of protein localization cellular localization nitrogen compound transport post-Golgi vesicle-mediated transport transport establishment of protein localization to plasma membrane Golgi to plasma membrane protein transport vesicle-mediated transport localization cellular macromolecule localization protein localization to cell periphery establishment of protein localization to membrane protein localization Golgi to plasma membrane transport establishment of protein localization cellular localization nitrogen compound transport post-Golgi vesicle-mediated transport transport establishment of protein localization to plasma membrane Golgi to plasma membrane protein transport vesicle-mediated transport localization cellular macromolecule localization protein localization to cell periphery establishment of protein localization to membrane protein localization to plasma membrane localization within membrane protein localization to membrane establishment of localization vesicle-mediated transport to the plasma membrane protein transport macromolecule localization cellular process Golgi vesicle transport developmental process multicellular organism development multicellular organismal process central nervous system development anatomical structure development nervous system development system development mitotic cell cycle process cytoskeleton-dependent cytokinesis mitotic cytokinesis cytokinesis cell division cell cycle mitotic cell cycle cell cycle process membrane organization cellular component organization plasma membrane organization cellular component organization or biogenesis endomembrane system organization positive regulation of protein localization to plasma membrane regulation of localization regulation of cellular process regulation of protein localization positive regulation of biological process regulation of protein localization to membrane positive regulation of cellular process positive regulation of protein localization to cell periphery regulation of biological process biological regulation positive regulation of protein localization to membrane regulation of protein localization to cell periphery regulation of cellular localization positive regulation of protein localization regulation of protein localization to plasma membrane organelle organization actin cytoskeleton organization actin filament-based process cytoskeleton organization central nervous system formation anatomical structure morphogenesis anatomical structure formation involved in morphogenesis central nervous system morphogenesis cellular response to stimulus regulation of signaling cell surface receptor protein serine/threonine kinase signaling pathway response to stimulus cell surface receptor signaling pathway signaling regulation of signal transduction intracellular signal transduction cell communication SMAD protein signal transduction regulation of intracellular signal transduction regulation of response to stimulus intracellular signaling cassette regulation of cell communication regulation of SMAD protein signal transduction signal transduction enzyme-linked receptor protein signaling pathway regulation of cellular component size negative regulation of biological process protein-containing complex disassembly regulation of protein-containing complex disassembly actin filament depolymerization regulation of actin filament depolymerization cellular component biogenesis actin filament capping cellular component assembly regulation of biological quality negative regulation of supramolecular fiber organization negative regulation of actin filament polymerization cellular component disassembly negative regulation of cellular component organization actin filament organization regulation of organelle organization negative regulation of protein depolymerization negative regulation of protein-containing complex assembly regulation of protein polymerization regulation of supramolecular fiber organization supramolecular fiber organization regulation of cytoskeleton organization regulation of cellular component organization regulation of actin filament-based process regulation of protein-containing complex assembly negative regulation of protein-containing complex disassembly negative regulation of cellular process protein-containing complex assembly negative regulation of protein polymerization regulation of actin filament polymerization actin polymerization or depolymerization protein polymerization regulation of actin filament organization actin filament polymerization protein-containing complex organization regulation of protein depolymerization negative regulation of cytoskeleton organization regulation of actin polymerization or depolymerization regulation of cellular component biogenesis negative regulation of organelle organization regulation of actin filament length regulation of actin cytoskeleton organization negative regulation of actin filament depolymerization protein depolymerization regulation of anatomical structure size membrane biogenesis membrane assembly positive regulation of macromolecule biosynthetic process positive regulation of metabolic process positive regulation of biosynthetic process regulation of cytokine production cytokine production regulation of multicellular organismal process positive regulation of macromolecule metabolic process regulation of biosynthetic process regulation of interleukin-2 production interleukin-2 production regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of interleukin-2 production regulation of gene expression biosynthetic process positive regulation of gene expression positive regulation of multicellular organismal process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process positive regulation of cytokine production regulation of metabolic process	cellular anatomical structure cell junction membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle membraneless organelle cellular anatomical structure cell junction membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle membraneless organelle nuclear lumen M band sarcomere contractile muscle fiber A band cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space vesicle extracellular membrane-bounded organelle cytosol cell periphery plasma membrane membrane synapse glutamatergic synapse spectrin protein-containing complex cell cortex cortical cytoskeleton actin cytoskeleton cytoskeleton cortical actin cytoskeleton postsynaptic density postsynapse neuron to neuron synapse postsynaptic specialization asymmetric synapse axon cell leading edge axolemma neuron projection leading edge membrane plasma membrane bounded cell projection neuron projection membrane cell projection main axon plasma membrane region cell projection membrane spectrin-associated cytoskeleton cuticular plate

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001849	Pleckstrin homology domain	Domain
A	IPR001605	Pleckstrin homology domain, spectrin-type	Domain
A	IPR041681	Pleckstrin homology domain 9	Domain
A	IPR001715	Calponin homology domain	Domain
A	IPR011993	PH-like domain superfamily	Homologous Superfamily
A	IPR001589	Actinin-type actin-binding domain, conserved site	Conserved Site
A	IPR036872	CH domain superfamily	Homologous Superfamily
A	IPR018159	Spectrin/alpha-actinin	Repeat
A	IPR016343	Spectrin, beta subunit	Family
A	IPR002017	Spectrin repeat	Repeat

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q01082	Weight Gain lung cancer malignant glioma non-small cell lung carcinoma ovarian cancer acute myeloid leukemia pilocytic astrocytoma psoriasis atypical teratoid rhabdoid tumor breast carcinoma Duchenne muscular dystrophy esophageal adenocarcinoma glioblastoma large cell medulloblastoma lymphoplasmacytic lymphoma Weight Gain lung cancer malignant glioma non-small cell lung carcinoma ovarian cancer acute myeloid leukemia pilocytic astrocytoma psoriasis atypical teratoid rhabdoid tumor breast carcinoma Duchenne muscular dystrophy esophageal adenocarcinoma glioblastoma large cell medulloblastoma lymphoplasmacytic lymphoma malignant pancreatic neoplasm oligodendroglioma pancreatic ductal adenocarcinoma adrenal cortex carcinoma plasma cell myeloma subependymal giant cell astrocytoma bone disease X-linked mixed deafness with perilymphatic gusher cutaneous lupus erythematosus ductal breast carcinoma in situ hepatocellular carcinoma lung adenocarcinoma malignant ependymoma medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm polycystic ovary syndrome astrocytic tumor tuberculosis bone fracture Down syndrome Emery-Dreifuss muscular dystrophy invasive ductal breast carcinoma

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.