3KBT | pdb_00003kbt

Crystal structure of the ankyrin binding domain of human erythroid beta spectrin (repeats 13-15) in complex with the spectrin binding domain of human erythroid ankyrin (ZU5-ANK)

External Resource: Annotation

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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	ZU5 domain-like	8019804	3002026	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	ZU5 domain-like	8019804	3002026	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	Trypsin	e3kbtD1	A: a/b three-layered sandwiches	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Trypsin	ECOD (v294.1)
C	Trypsin	e3kbtC1	A: a/b three-layered sandwiches	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Trypsin	ECOD (v294.1)
B	Pyr_redox_dim	e3kbtB5	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Pyr_redox_dim	ECOD (v294.1)
B	YadA_stalk	e3kbtB2	A: a/b three-layered sandwiches	X: SMI1/KNR4-like	H: SMI1/KNR4-like	T: SMI1/KNR4-like	F: YadA_stalk	ECOD (v294.1)
A	Peptidase_M42	e3kbtA1	A: a/b three-layered sandwiches	X: OB-fold	H: Nucleic acid-binding protein	T: Nucleic acid-binding protein	F: Peptidase_M42	ECOD (v294.1)
A	YadA_stalk	e3kbtA2	A: a/b three-layered sandwiches	X: SMI1/KNR4-like	H: SMI1/KNR4-like	T: SMI1/KNR4-like	F: YadA_stalk	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	2.60.220.30	Mainly Beta	Sandwich	Chondroitinase Ac	Chain A, domain 3	CATH (4.3.0)
C	2.60.220.30	Mainly Beta	Sandwich	Chondroitinase Ac	Chain A, domain 3	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)
A	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
C, D	PF00791	ZU5 domain (ZU5)	ZU5 domain	-	Family
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
C, D	Ankyrin-1	cytoskeletal protein binding spectrin binding protein-containing complex binding protein binding binding protein phosphatase binding phosphatase binding enzyme binding transmembrane transporter binding structural constituent of cytoskeleton structural molecule activity protein-macromolecule adaptor activity cytoskeletal anchor activity molecular adaptor activity cytoskeletal protein binding spectrin binding protein-containing complex binding protein binding binding protein phosphatase binding phosphatase binding enzyme binding transmembrane transporter binding structural constituent of cytoskeleton structural molecule activity protein-macromolecule adaptor activity cytoskeletal anchor activity molecular adaptor activity ATPase binding	localization protein localization to cell periphery cellular localization protein localization to plasma membrane macromolecule localization cellular process intracellular protein localization localization within membrane protein localization to membrane establishment or maintenance of bipolar cell polarity establishment or maintenance of epithelial cell apical/basal polarity maintenance of cell polarity maintenance of epithelial cell apical/basal polarity maintenance of apical/basal cell polarity localization protein localization to cell periphery cellular localization protein localization to plasma membrane macromolecule localization cellular process intracellular protein localization localization within membrane protein localization to membrane establishment or maintenance of bipolar cell polarity establishment or maintenance of epithelial cell apical/basal polarity maintenance of cell polarity maintenance of epithelial cell apical/basal polarity maintenance of apical/basal cell polarity establishment or maintenance of apical/basal cell polarity establishment or maintenance of cell polarity transport intracellular transport endoplasmic reticulum to Golgi vesicle-mediated transport establishment of localization vesicle-mediated transport intercellular transport establishment of localization in cell Golgi vesicle transport cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation signal transduction cell communication cellular component organization organelle organization cellular component organization or biogenesis cytoskeleton organization secretion by cell exocytosis secretion export from cell	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane M band intracellular anatomical structure intracellular membraneless organelle sarcomere cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane M band intracellular anatomical structure intracellular membraneless organelle sarcomere intracellular organelle organelle membraneless organelle contractile muscle fiber A band cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex Z disc I band ankyrin-1 complex protein-containing complex membrane protein complex cytosol sarcolemma basal part of cell basal plasma membrane basolateral plasma membrane cell projection neuron projection plasma membrane bounded cell projection cytoskeleton axon cell leading edge axolemma leading edge membrane neuron projection membrane main axon cell projection membrane membrane-bounded organelle intracellular membrane-bounded organelle endomembrane system sarcoplasm endoplasmic reticulum sarcoplasmic reticulum spectrin-associated cytoskeleton cytoplasmic side of plasma membrane cytoplasmic side of membrane side of membrane
A, B	Spectrin beta chain, erythrocyte	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding ankyrin binding structural constituent of cytoskeleton structural molecule activity	cellular component organization organelle organization actin cytoskeleton organization actin filament-based process cellular process cellular component organization or biogenesis cytoskeleton organization cell junction organization modification of postsynaptic actin cytoskeleton synapse organization modification of postsynaptic structure modification of synaptic structure regulation of cellular process regulation of cellular component size cellular component organization organelle organization actin cytoskeleton organization actin filament-based process cellular process cellular component organization or biogenesis cytoskeleton organization cell junction organization modification of postsynaptic actin cytoskeleton synapse organization modification of postsynaptic structure modification of synaptic structure regulation of cellular process 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 regulation of biological process 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 biological regulation 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	cellular anatomical structure cell junction intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cell surface cytoplasm cytosol cell periphery plasma membrane cellular anatomical structure cell junction intracellular organelle intracellular anatomical structure cytoskeleton organelle membraneless organelle intracellular membraneless organelle actin cytoskeleton cell surface cytoplasm cytosol cell periphery plasma membrane membrane protein-containing complex synapse glutamatergic synapse spectrin cell cortex cortical cytoskeleton cortical actin cytoskeleton spectrin-associated cytoskeleton cytoplasmic side of plasma membrane cytoplasmic side of membrane side of membrane postsynapse cell projection

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, D	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
C, D	IPR040745	Ankyrin, UPA domain	Domain
C, D	IPR000906	ZU5 domain	Domain
C, D	IPR002110	Ankyrin repeat	Repeat
C, D	IPR011029	Death-like domain superfamily	Homologous Superfamily
C, D	IPR051165	Multifunctional Ankyrin Repeat Domain-Containing Protein	Family
C, D	IPR000488	Death domain	Domain
A, B	IPR001715	Calponin homology domain	Domain
A, B	IPR001589	Actinin-type actin-binding domain, conserved site	Conserved Site
A, B	IPR036872	CH domain superfamily	Homologous Superfamily
A, B	IPR018159	Spectrin/alpha-actinin	Repeat
A, B	IPR016343	Spectrin, beta subunit	Family
A, B	IPR002017	Spectrin repeat	Repeat

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C, D	Pharos: P16157	hereditary spherocytosis hereditary spherocytosis type 1 8p11.2 deletion syndrome Bone Diseases, Developmental familial hemolytic anemia hereditary elliptocytosis pilocytic astrocytoma subependymal giant cell astrocytoma hemolytic anemia myopathy primitive neuroectodermal tumor type 2 diabetes mellitus congenital anemia malignant ependymoma maturity-onset diabetes of the young hereditary spherocytosis hereditary spherocytosis type 1 8p11.2 deletion syndrome Bone Diseases, Developmental familial hemolytic anemia hereditary elliptocytosis pilocytic astrocytoma subependymal giant cell astrocytoma hemolytic anemia myopathy primitive neuroectodermal tumor type 2 diabetes mellitus congenital anemia malignant ependymoma maturity-onset diabetes of the young osteosarcoma atypical teratoid rhabdoid tumor cystic fibrosis glioblastoma malignant glioma medulloblastoma
A, B	Pharos: P11277	hereditary spherocytosis hereditary elliptocytosis hereditary spherocytosis type 2 elliptocytosis 3 hemolytic anemia neonatal anemia familial hemolytic anemia medulloblastoma osteosarcoma psoriasis SPECTRIN TLEMCEN PHENOTYPE glioblastoma large cell medulloblastoma malignant glioma pilocytic astrocytoma hereditary spherocytosis hereditary elliptocytosis hereditary spherocytosis type 2 elliptocytosis 3 hemolytic anemia neonatal anemia familial hemolytic anemia medulloblastoma osteosarcoma psoriasis SPECTRIN TLEMCEN PHENOTYPE glioblastoma large cell medulloblastoma malignant glioma pilocytic astrocytoma lung adenocarcinoma MALT lymphoma primitive neuroectodermal tumor atypical teratoid rhabdoid tumor malignant ependymoma

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.