3UUN | pdb_00003uun

Crystal Structure of N-terminal first spectrin repeat of dystrophin

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Spectrin	e3uunA1	A: alpha bundles	X: Spectrin repeat-like	H: Spectrin repeat (From Topology)	T: Spectrin repeat	F: Spectrin	ECOD (1.6)
B	Spectrin	e3uunB2	A: alpha bundles	X: Spectrin repeat-like	H: Spectrin repeat (From Topology)	T: Spectrin repeat	F: Spectrin	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.58.60	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)
B	1.20.58.60	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00435	Spectrin repeat (Spectrin)	Spectrin repeat	Spectrin repeat-domains are found in several proteins involved in cytoskeletal structure. These include spectrin, alpha-actinin and dystrophin. The sequence repeat used in this family is taken from the structural repeat in reference [2]. The spectr ...	Spectrin repeat-domains are found in several proteins involved in cytoskeletal structure. These include spectrin, alpha-actinin and dystrophin. The sequence repeat used in this family is taken from the structural repeat in reference [2]. The spectrin domain- repeat forms a three helix bundle. The second helix is interrupted by proline in some sequences. The repeats are defined by a characteristic tryptophan (W) residue at position 17 in helix A and a leucine (L) at 2 residues from the carboxyl end of helix C. Although the domain occurs in multiple repeats along sequences, the domains are actually stable on their own - ie they act, biophysically, like domains rather than repeats that along function when aggregated.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Dystrophin	structural molecule activity structural constituent of muscle nitric-oxide synthase binding protein binding binding enzyme binding cytoskeletal protein binding vinculin binding dystroglycan binding actin binding myosin binding structural constituent of cytoskeleton cation binding transition metal ion binding structural molecule activity structural constituent of muscle nitric-oxide synthase binding protein binding binding enzyme binding cytoskeletal protein binding vinculin binding dystroglycan binding actin binding myosin binding structural constituent of cytoskeleton cation binding transition metal ion binding zinc ion binding ion binding metal ion binding small molecule binding	peptide biosynthetic process biosynthetic process metabolic process cellular process peptide metabolic process heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation peptide biosynthetic process biosynthetic process metabolic process cellular process peptide metabolic process heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation regulation of multicellular organismal process regulation of biological quality heart contraction blood circulation regulation of heart rate organelle assembly plasma membrane bounded cell projection organization motile cilium assembly cell projection organization plasma membrane bounded cell projection assembly cellular component biogenesis cellular component organization organelle organization cellular component assembly cilium assembly cellular component organization or biogenesis cilium organization cell projection assembly localization macromolecule localization intracellular protein localization nervous system process neuromuscular process skeletal muscle contraction muscle contraction muscle system process regulation of muscle system process striated muscle contraction multicellular organismal movement musculoskeletal movement regulation of striated muscle contraction regulation of muscle contraction regulation of skeletal muscle contraction regulation of calcium ion transport regulation of localization regulation of cellular process intracellular calcium ion homeostasis negative regulation of biological process sarcoplasmic reticulum calcium ion transport release of sequestered calcium ion into cytosol by sarcoplasmic reticulum calcium ion transport monoatomic cation homeostasis monoatomic cation transport intracellular monoatomic ion homeostasis release of sequestered calcium ion into cytosol by endoplasmic reticulum regulation of release of sequestered calcium ion into cytosol regulation of monoatomic ion transport establishment of localization maintenance of location transmembrane transport release of sequestered calcium ion into cytosol regulation of transmembrane transport chemical homeostasis cellular localization inorganic ion homeostasis transport homeostatic process monoatomic ion transmembrane transport calcium ion homeostasis regulation of monoatomic ion transmembrane transport negative regulation of sequestering of calcium ion metal ion transport maintenance of location in cell regulation of calcium ion transmembrane transport monoatomic cation transmembrane transport intracellular monoatomic cation homeostasis monoatomic ion homeostasis negative regulation of cellular process monoatomic ion transport intracellular chemical homeostasis regulation of metal ion transport regulation of sequestering of calcium ion calcium ion transmembrane import into cytosol regulation of transport sequestering of calcium ion cellular homeostasis regulation of monoatomic cation transmembrane transport calcium ion transmembrane transport regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum developmental process muscle structure development animal organ development anatomical structure development muscle organ development regulation of neuron projection development regulation of cellular component organization positive regulation of cellular component organization cellular developmental process positive regulation of biological process cell development neuron projection development neurogenesis multicellular organism development neuron differentiation positive regulation of neuron projection development cell differentiation positive regulation of cell projection organization positive regulation of cellular process system development regulation of cell projection organization nervous system development generation of neurons neuron development regulation of plasma membrane bounded cell projection organization cellular response to stimulus response to stimulus cardiac muscle contraction intracellular signal transduction cell communication intracellular signaling cassette signal transduction regulation of cardiac muscle contraction calcium-mediated signaling signaling regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion regulation of cardiac muscle contraction by calcium ion signaling muscle cell development muscle cell differentiation action potential cardiac muscle cell action potential regulation of membrane potential muscle cell cellular homeostasis cellular response to endogenous stimulus cellular response to growth factor stimulus regulation of response to stimulus response to endogenous stimulus regulation of cellular response to growth factor stimulus response to growth factor protein-containing complex organization protein-containing complex assembly skeletal muscle organ development skeletal muscle tissue development muscle tissue development tissue development striated muscle tissue development sodium ion transmembrane transport regulation of sodium ion transport regulation of sodium ion transmembrane transport sodium ion transport regulation of developmental process regulation of cell differentiation positive regulation of neuron differentiation positive regulation of developmental process positive regulation of cell differentiation regulation of neuron differentiation synaptic signaling cell-cell signaling maintenance of blood-brain barrier multicellular organismal-level homeostasis anatomical structure homeostasis tissue homeostasis regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion regulation of skeletal muscle contraction by calcium ion signaling response to mechanical stimulus response to abiotic stimulus response to external stimulus response to muscle stretch	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane intracellular anatomical structure intracellular membraneless organelle Z disc sarcomere cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane intracellular anatomical structure intracellular membraneless organelle Z disc sarcomere intracellular organelle I band organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex cytosol sarcolemma costamere glycoprotein complex protein-containing complex syntrophin complex plasma membrane protein complex membrane protein complex dystrophin-associated glycoprotein complex anchoring junction cell-substrate junction cytoskeleton cell projection actin-based cell projection filopodium plasma membrane bounded cell projection cell surface membrane microdomain membrane raft neuron projection terminus neuron projection filopodium membrane cell projection membrane membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR043145	Zinc finger, ZZ-type superfamily	Homologous Superfamily
A, B	IPR015154	EF-hand domain, type 2	Domain
A, B	IPR036020	WW domain superfamily	Homologous Superfamily
A, B	IPR000433	Zinc finger, ZZ-type	Domain
A, B	IPR001589	Actinin-type actin-binding domain, conserved site	Conserved Site
A, B	IPR036872	CH domain superfamily	Homologous Superfamily
A, B	IPR050774	KCMF1 and Dystrophin	Family
A, B	IPR002017	Spectrin repeat	Repeat
A, B	IPR015153	EF-hand domain, type 1	Domain
A, B	IPR001715	Calponin homology domain	Domain
A, B	IPR011992	EF-hand domain pair	Homologous Superfamily
A, B	IPR035436	Dystrophin/utrophin	Family
A, B	IPR018159	Spectrin/alpha-actinin	Repeat
A, B	IPR001202	WW domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: P11532	Duchenne muscular dystrophy dilated cardiomyopathy Becker muscular dystrophy dilated cardiomyopathy 3B cardiomyopathy embryonal rhabdomyosarcoma gastrointestinal stromal tumor leiomyosarcoma status epilepticus muscular dystrophy polycystic ovary syndrome muscular dystrophy, non-human animal myxoid leiomyosarcoma Neoplasm Invasiveness calcinosis Duchenne muscular dystrophy dilated cardiomyopathy Becker muscular dystrophy dilated cardiomyopathy 3B cardiomyopathy embryonal rhabdomyosarcoma gastrointestinal stromal tumor leiomyosarcoma status epilepticus muscular dystrophy polycystic ovary syndrome muscular dystrophy, non-human animal myxoid leiomyosarcoma Neoplasm Invasiveness calcinosis epithelioid leiomyosarcoma X-linked recessive disease cystic fibrosis dilated cardiomyopathy 1A distal myopathy ductal breast carcinoma in situ non-small cell lung carcinoma adrenal cortex carcinoma endomyocardial fibrosis pancreatic intraductal papillary-mucinous carcinoma arthropathy familial isolated dilated cardiomyopathy hereditary spastic paraplegia psoriasis large cell medulloblastoma lung adenocarcinoma swine influenza colorectal cancer malignant ependymoma medulloblastoma ulcerative colitis congenital muscular dystrophy dermatomyositis nasopharyngeal carcinoma Duchenne and Becker muscular dystrophy ovarian cancer amyotrophic lateral sclerosis pancreatic intraductal papillary-mucinous neoplasm atypical teratoid rhabdoid tumor pituitary cancer breast cancer intellectual disability rhabdomyolysis lung cancer tuberculosis cutaneous lupus erythematosus myopathy endogenous depression pancreatic ductal adenocarcinoma arthrogryposis familial dilated cardiomyopathy pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia B-cell chronic lymphocytic leukemia breast carcinoma invasive ductal breast carcinoma limb-girdle muscular dystrophy Charcot-Marie-Tooth disease malignant colon neoplasm malignant pancreatic neoplasm

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.