Annotations: 5YBE

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Ankyrin repeat	8086370	4000366	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Ankyrin repeat	8089693	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	e5ybeA1	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
A	Kank1 protein	-	regulation of cytoskeleton organization regulation of cellular process regulation of cellular component organization regulation of actin filament-based process regulation of cellular component size negative regulation of biological process cellular component organization cellular component biogenesis regulation of protein-containing complex assembly cellular component assembly protein-containing complex assembly actin filament-based process negative regulation of cellular process negative regulation of protein polymerization regulation of cytoskeleton organization regulation of cellular process regulation of cellular component organization regulation of actin filament-based process regulation of cellular component size negative regulation of biological process cellular component organization cellular component biogenesis regulation of protein-containing complex assembly cellular component assembly protein-containing complex assembly actin filament-based process negative regulation of cellular process negative regulation of protein polymerization regulation of actin filament polymerization cellular component organization or biogenesis regulation of biological quality negative regulation of supramolecular fiber organization negative regulation of actin filament polymerization protein polymerization actin polymerization or depolymerization regulation of biological process regulation of actin filament organization actin filament polymerization actin cytoskeleton organization negative regulation of cellular component organization protein-containing complex organization negative regulation of cytoskeleton organization biological regulation actin filament organization regulation of actin polymerization or depolymerization regulation of cellular component biogenesis regulation of organelle organization negative regulation of protein-containing complex assembly organelle organization negative regulation of organelle organization regulation of protein polymerization regulation of actin filament length regulation of actin cytoskeleton organization regulation of supramolecular fiber organization cellular process supramolecular fiber organization cytoskeleton organization regulation of anatomical structure size	intracellular anatomical structure cytoplasm cellular anatomical entity intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle non-membrane-bounded organelle
B	KIF21A	ankyrin repeat binding protein binding binding protein domain specific binding microtubule motor activity cytoskeletal motor activity ATP-dependent activity adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding ankyrin repeat binding protein binding binding protein domain specific binding microtubule motor activity cytoskeletal motor activity ATP-dependent activity adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound 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 pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic 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 cortical cytoskeleton organization microtubule cytoskeleton organization cytoplasmic microtubule organization cortical microtubule organization organelle organization microtubule-based process 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 microtubule-based movement 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 distal axon neuron projection axonal growth cone cellular anatomical entity plasma membrane bounded cell projection site of polarized growth intracellular anatomical structure cytoplasm cytosol protein-containing complex intracellular organelle growth cone axon cell projection distal axon neuron projection axonal growth cone cellular anatomical entity plasma membrane bounded cell projection site of polarized growth intracellular anatomical structure cytoplasm cytosol protein-containing complex intracellular organelle cytoskeleton organelle intracellular non-membrane-bounded organelle microtubule associated complex kinesin complex microtubule cytoskeleton non-membrane-bounded organelle somatodendritic compartment dendrite dendritic tree polymeric cytoskeletal fiber supramolecular fiber microtubule supramolecular polymer supramolecular complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
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
B	IPR036961	Kinesin motor domain superfamily	Homologous Superfamily
B	IPR001752	Kinesin motor domain	Domain
B	IPR019775	WD40 repeat, conserved site	Conserved Site
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	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
B	IPR001680	WD40 repeat	Repeat
B	IPR019821	Kinesin motor domain, conserved site	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.