Annotations: 5YAY

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Ankyrin repeat	8086371	4000366	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Ankyrin repeat	8089694	3000154	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	Ank_2	e5yayA1	A: alpha superhelices	X: Repetitive alpha hairpins	H: Ankyrin repeat (From Topology)	T: Ankyrin repeat	F: Ank_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.25.40.20	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat	Ankyrin repeat-containing domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF12796	Ankyrin repeats (3 copies) (Ank_2)	Ankyrin repeats (3 copies)	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	Kinesin-like protein KIF21A	ankyrin repeat binding protein binding binding protein domain specific binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding ankyrin repeat binding protein binding binding protein domain specific binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding cytoskeletal protein binding microtubule binding tubulin binding plus-end-directed microtubule motor activity microtubule motor activity polypeptide conformation or assembly isomerase activity isomerase activity cytoskeletal motor activity macromolecular conformation isomerase activity catalytic activity ATP-dependent activity	multicellular organismal process axonogenesis regulation of cellular process response to stimulus cell projection organization neuron projection development multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis taxis regulation of axon guidance cell differentiation anatomical structure development multicellular organismal process axonogenesis regulation of cellular process response to stimulus cell projection organization neuron projection development multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis taxis regulation of axon guidance cell differentiation anatomical structure development system development developmental process chemotaxis regulation of biological process regulation of cell projection organization response to external stimulus nervous system development generation of neurons regulation of response to stimulus response to chemical regulation of locomotion regulation of neuron projection development regulation of cellular component organization cellular developmental process regulation of response to external stimulus plasma membrane bounded cell projection morphogenesis cell development cell morphogenesis cellular component organization neurogenesis cellular component organization or biogenesis locomotion plasma membrane bounded cell projection organization biological regulation axon guidance axon development regulation of chemotaxis cell morphogenesis involved in neuron differentiation anatomical structure morphogenesis neuron projection guidance neuron development cellular process regulation of plasma membrane bounded cell projection organization cellular localization anterograde axonal transport transport intracellular transport axonal transport establishment of localization localization axo-dendritic transport establishment of localization in cell microtubule-based transport transport along microtubule cytoskeleton-dependent intracellular transport microtubule-based movement microtubule-based process cortical cytoskeleton organization microtubule cytoskeleton organization cytoplasmic microtubule organization cortical microtubule organization organelle organization supramolecular fiber organization cytoskeleton organization regulation of cytoskeleton organization regulation of microtubule polymerization or depolymerization protein-containing complex disassembly regulation of protein-containing complex disassembly regulation of microtubule depolymerization microtubule polymerization or depolymerization cellular component disassembly protein-containing complex organization regulation of protein depolymerization regulation of microtubule-based process regulation of organelle organization microtubule depolymerization regulation of supramolecular fiber organization protein depolymerization regulation of microtubule cytoskeleton organization cellular component biogenesis regulation of protein-containing complex assembly cellular component assembly protein-containing complex assembly protein polymerization microtubule polymerization regulation of cellular component biogenesis regulation of microtubule polymerization regulation of protein polymerization	growth cone axon cell projection cellular anatomical structure distal axon neuron projection axonal growth cone plasma membrane bounded cell projection site of polarized growth cell periphery cell cortex intracellular anatomical structure cytoplasm cytosol growth cone axon cell projection cellular anatomical structure distal axon neuron projection axonal growth cone plasma membrane bounded cell projection site of polarized growth cell periphery cell cortex intracellular anatomical structure cytoplasm cytosol presynapse synapse cell junction somatodendritic compartment dendrite dendritic tree polymeric cytoskeletal fiber intracellular membraneless organelle intracellular organelle cytoskeleton organelle membraneless organelle supramolecular fiber microtubule supramolecular polymer supramolecular complex microtubule cytoskeleton neuron projection cytoplasm axon cytoplasm cytoplasmic region plasma membrane bounded cell projection cytoplasm
A	KN motif and ankyrin repeat domains 1	beta-catenin binding protein binding binding protein-macromolecule adaptor activity molecular adaptor activity	regulation of cellular component organization regulation of cellular process regulation of developmental process cell projection organization plasma membrane bounded cell projection morphogenesis negative regulation of biological process negative regulation of lamellipodium morphogenesis cell morphogenesis regulation of cell morphogenesis cellular component organization cell projection morphogenesis regulation of lamellipodium organization anatomical structure development negative regulation of cellular process regulation of cellular component organization regulation of cellular process regulation of developmental process cell projection organization plasma membrane bounded cell projection morphogenesis negative regulation of biological process negative regulation of lamellipodium morphogenesis cell morphogenesis regulation of cell morphogenesis cellular component organization cell projection morphogenesis regulation of lamellipodium organization anatomical structure development negative regulation of cellular process regulation of lamellipodium morphogenesis cellular component organization or biogenesis negative regulation of cell projection organization regulation of anatomical structure morphogenesis developmental process regulation of biological process plasma membrane bounded cell projection organization negative regulation of cellular component organization regulation of cell projection organization negative regulation of developmental process biological regulation anatomical structure morphogenesis negative regulation of lamellipodium organization lamellipodium organization lamellipodium morphogenesis cellular process regulation of plasma membrane bounded cell projection organization cellular response to stimulus small GTPase-mediated signal transduction negative regulation of Rho protein signal transduction response to stimulus signaling negative regulation of signaling regulation of small GTPase mediated signal transduction negative regulation of intracellular signal transduction regulation of signal transduction intracellular signal transduction Rho protein signal transduction negative regulation of cell communication cell communication regulation of intracellular signal transduction intracellular signaling cassette signal transduction regulation of signaling negative regulation of response to stimulus negative regulation of small GTPase mediated signal transduction regulation of Rho protein signal transduction negative regulation of signal transduction regulation of response to stimulus regulation of cell communication epithelium migration multicellular organismal process tissue migration ameboidal-type cell migration podocyte cell migration epithelial cell migration cell migration cell motility positive regulation of response to wounding wound healing positive regulation of biological process regulation of response to wounding positive regulation of response to stimulus positive regulation of wound healing response to stress regulation of response to stress regulation of wound healing response to wounding negative regulation of locomotion regulation of cell motility regulation of locomotion regulation of cell migration negative regulation of cell motility negative regulation of cell migration locomotion cortical cytoskeleton organization microtubule cytoskeleton organization cytoplasmic microtubule organization cortical microtubule organization organelle organization microtubule-based process supramolecular fiber organization cytoskeleton organization cell population proliferation regulation of cell-substrate adhesion regulation of cell adhesion regulation of substrate adhesion-dependent cell spreading cell-substrate adhesion negative regulation of cell adhesion cell adhesion negative regulation of substrate adhesion-dependent cell spreading substrate adhesion-dependent cell spreading negative regulation of cell-substrate adhesion positive regulation of cell communication positive regulation of signal transduction regulation of canonical Wnt signaling pathway canonical Wnt signaling pathway positive regulation of Wnt signaling pathway Wnt signaling pathway positive regulation of cellular process positive regulation of canonical Wnt signaling pathway cell surface receptor signaling pathway regulation of Wnt signaling pathway positive regulation of signaling actin cytoskeleton organization actin filament-based process regulation of neuron projection development cellular developmental process cell development neuron projection development neurogenesis multicellular organism development neuron differentiation cell differentiation system development nervous system development negative regulation of neuron projection development generation of neurons neuron development ruffle organization plasma membrane bounded cell projection assembly negative regulation of ruffle assembly ruffle assembly cellular component biogenesis negative regulation of plasma membrane bounded cell projection assembly cellular component assembly regulation of cell projection assembly regulation of cellular component biogenesis regulation of plasma membrane bounded cell projection assembly regulation of ruffle assembly cell projection assembly regulation of establishment of cell polarity regulation of establishment or maintenance of cell polarity establishment of cell polarity establishment or maintenance of cell polarity regulation of cytoskeleton organization regulation of actin filament-based process regulation of cellular component size regulation of protein-containing complex assembly protein-containing complex assembly negative regulation of protein polymerization regulation of actin filament polymerization regulation of biological quality negative regulation of supramolecular fiber organization negative regulation of actin filament polymerization protein polymerization actin polymerization or depolymerization regulation of actin filament organization actin filament polymerization protein-containing complex organization negative regulation of cytoskeleton organization regulation of actin polymerization or depolymerization actin filament organization regulation of organelle organization negative regulation of protein-containing complex assembly negative regulation of organelle organization regulation of protein polymerization regulation of actin filament length regulation of actin cytoskeleton organization regulation of supramolecular fiber organization regulation of anatomical structure size cellular response to nitrogen compound response to peptide hormone insulin receptor signaling pathway regulation of cellular response to insulin stimulus cell surface receptor protein tyrosine kinase signaling pathway cellular response to endogenous stimulus response to hormone enzyme-linked receptor protein signaling pathway cellular response to hormone stimulus response to endogenous stimulus regulation of insulin receptor signaling pathway response to oxygen-containing compound cellular response to peptide hormone stimulus response to nitrogen compound cellular response to oxygen-containing compound cellular response to chemical stimulus negative regulation of cellular response to insulin stimulus negative regulation of insulin receptor signaling pathway response to chemical response to insulin cellular response to insulin stimulus	cell periphery cell cortex cellular anatomical structure intracellular anatomical structure cytoplasm ruffle cell leading edge plasma membrane membrane leading edge membrane plasma membrane bounded cell projection cell projection ruffle membrane plasma membrane region cell periphery cell cortex cellular anatomical structure intracellular anatomical structure cytoplasm ruffle cell leading edge plasma membrane membrane leading edge membrane plasma membrane bounded cell projection cell projection ruffle membrane plasma membrane region cell projection membrane membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
B	IPR001752	Kinesin motor domain	Domain
B	IPR019775	WD40 repeat, conserved site	Conserved Site
B	IPR056533	KIF21A/B, first helical domain	Domain
B	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily
B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
B	IPR027640	Kinesin-like protein	Family
B	IPR056532	KIF21A/B, second helical domain	Domain
B	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
B	IPR001680	WD40 repeat	Repeat
B	IPR019821	Kinesin motor domain, conserved site	Conserved Site
A	IPR002110	Ankyrin repeat	Repeat
A	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
A	IPR047184	KN motif and ankyrin repeat domain-containing protein 1-4	Family
A	IPR021939	Kank N-terminal motif	Conserved Site

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.