Annotations: 7O3B

Crystal structure of the TTBK2-CEP164 complex bound to a camelid nanobody

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody 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	zf-C3HC4	e7o3bA1	A: beta barrels	X: CNF1/YfiH-like putative cysteine hydrolases	H: RIFT-related	T: FMN-binding split barrel 2	F: zf-C3HC4	ECOD (v294.2)
B	zf-C3HC4	e7o3bB1	A: beta barrels	X: CNF1/YfiH-like putative cysteine hydrolases	H: RIFT-related	T: FMN-binding split barrel 2	F: zf-C3HC4	ECOD (v294.2)
C	zf-C3HC4	e7o3bC1	A: beta barrels	X: CNF1/YfiH-like putative cysteine hydrolases	H: RIFT-related	T: FMN-binding split barrel 2	F: zf-C3HC4	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A, B, C	Heavy Chain	IGHV1	-	tau-tubulin kinase 2,centrosomal protein of 164 kda	SAbDab (2026-05-08)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Nanobody 36Z	-	-	-
D [auth G], E [auth H], F [auth I]	Tau-tubulin kinase 2,Centrosomal protein of 164 kDa	cytoskeletal protein binding protein binding binding kinesin binding protein serine/threonine kinase activity tau-protein kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein serine kinase activity cytoskeletal protein binding protein binding binding kinesin binding protein serine/threonine kinase activity tau-protein kinase activity catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein serine kinase activity 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 tau protein binding microtubule plus-end binding microtubule binding tubulin binding	cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation smoothened signaling pathway cell communication cellular process signal transduction regulation of signaling regulation of signal transduction regulation of response to stimulus cellular response to stimulus regulation of biological process regulation of cellular process cell surface receptor signaling pathway response to stimulus signaling biological regulation smoothened signaling pathway cell communication cellular process signal transduction regulation of signaling regulation of signal transduction regulation of response to stimulus regulation of cell communication regulation of smoothened signaling pathway developmental process multicellular organismal process head development animal organ development brain development nervous system development multicellular organism development cerebellum development central nervous system development metencephalon development anatomical structure development hindbrain development system development protein localization to microtubule cytoskeleton regulation of localization negative regulation of protein localization to microtubule regulation of protein localization negative regulation of biological process localization protein localization to microtubule regulation of protein localization to microtubule macromolecule localization protein localization to cytoskeleton protein localization to organelle intracellular protein localization negative regulation of protein localization positive regulation of organelle organization regulation of cellular component organization positive regulation of cellular component organization cell projection organization positive regulation of biological process plasma membrane bounded cell projection assembly cellular component biogenesis cellular component organization cellular component assembly positive regulation of non-motile cilium assembly cilium assembly positive regulation of cell projection organization cellular component organization or biogenesis cilium organization positive regulation of cellular process regulation of non-motile cilium assembly organelle assembly plasma membrane bounded cell projection organization positive regulation of cellular component biogenesis regulation of cell projection organization regulation of cell projection assembly regulation of cellular component biogenesis regulation of organelle organization regulation of plasma membrane bounded cell projection assembly organelle organization positive regulation of cilium assembly regulation of cilium assembly regulation of organelle assembly non-motile cilium assembly cell projection assembly regulation of plasma membrane bounded cell projection organization positive regulation of plasma membrane bounded cell projection assembly positive regulation of organelle assembly regulation of cell motility regulation of locomotion regulation of cell migration cell migration cell motility locomotion cerebellar granule cell precursor tangential migration hindbrain tangential cell migration cell migration in hindbrain embryonic brain development embryonic organ development embryo development cerebellar granular layer development cerebellar cortex development forebrain development microtubule cytoskeleton organization microtubule-based process cytoskeleton organization protein phosphorylation phosphorylation primary metabolic process peptidyl-serine modification peptidyl-serine phosphorylation macromolecule modification peptidyl-amino acid modification phosphate-containing compound metabolic process metabolic process protein metabolic process macromolecule metabolic process protein modification process phosphorus metabolic process epithelium development neural tube development tube development chordate embryonic development tissue development embryo development ending in birth or egg hatching regulation of cytoskeleton organization regulation of microtubule polymerization or depolymerization negative regulation of microtubule depolymerization protein-containing complex disassembly regulation of protein-containing complex disassembly microtubule polymerization or depolymerization regulation of microtubule depolymerization negative regulation of protein-containing complex disassembly negative regulation of cellular process negative regulation of supramolecular fiber organization cellular component disassembly negative regulation of cellular component organization negative regulation of microtubule polymerization or depolymerization protein-containing complex organization regulation of protein depolymerization negative regulation of cytoskeleton organization regulation of microtubule-based process negative regulation of protein depolymerization negative regulation of organelle organization microtubule depolymerization regulation of supramolecular fiber organization supramolecular fiber organization protein depolymerization regulation of microtubule cytoskeleton organization limb development appendage development embryonic limb morphogenesis embryonic morphogenesis embryonic appendage morphogenesis anatomical structure morphogenesis appendage morphogenesis embryonic digit morphogenesis limb morphogenesis DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress DNA repair cell division	membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection ciliary transition zone intracellular organelle microtubule organizing center intracellular anatomical structure cytoskeleton membraneless organelle centriole intracellular membraneless organelle membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection ciliary transition zone intracellular organelle microtubule organizing center intracellular anatomical structure cytoskeleton membraneless organelle centriole intracellular membraneless organelle microtubule cytoskeleton cytoplasm cytosol ciliary base ciliary basal body nucleus intracellular membrane-bounded organelle protein-containing complex ciliary transition fiber intracellular protein-containing complex centrosome sperm principal piece 9+2 motile cilium sperm flagellum motile cilium membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
D [auth G], E [auth H], F [auth I]	IPR017441	Protein kinase, ATP binding site	Binding Site
D [auth G], E [auth H], F [auth I]	IPR000719	Protein kinase domain	Domain
D [auth G], E [auth H], F [auth I]	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
D [auth G], E [auth H], F [auth I]	IPR050235	Casein kinase 1/Serine/threonine-protein kinase-like	Family
D [auth G], E [auth H], F [auth I]	IPR047915	Tau-Tubulin Kinase 2, catalytic domain	Domain
D [auth G], E [auth H], F [auth I]	IPR036020	WW domain superfamily	Homologous Superfamily
D [auth G], E [auth H], F [auth I]	IPR051841	Microtubule and Golgi organization protein	Family
D [auth G], E [auth H], F [auth I]	IPR001202	WW domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
D [auth G], E [auth H], F [auth I]	: Q9UPV0	spinocerebellar ataxia type 11 autosomal dominant cerebellar ataxia oligodendroglioma Pick disease psoriasis Small cell carcinoma of lung spinocerebellar ataxia type 2 adrenal cortex carcinoma spinocerebellar ataxia type 6 bipolar I disorder Charcot-Marie-Tooth disease intellectual disability malignant colon neoplasm medulloblastoma osteosarcoma spinocerebellar ataxia type 11 autosomal dominant cerebellar ataxia oligodendroglioma Pick disease psoriasis Small cell carcinoma of lung spinocerebellar ataxia type 2 adrenal cortex carcinoma spinocerebellar ataxia type 6 bipolar I disorder Charcot-Marie-Tooth disease intellectual disability malignant colon neoplasm medulloblastoma osteosarcoma pilocytic astrocytoma rheumatoid arthritis spinocerebellar ataxia type 1 spinocerebellar ataxia type 4 Alzheimer disease spinocerebellar ataxia type 7 atypical teratoid rhabdoid tumor breast cancer glioblastoma invasive ductal breast carcinoma malignant ependymoma neurodegenerative disease ovarian cancer progressive supranuclear palsy Sjogren syndrome spinocerebellar ataxia type 5 astrocytic tumor cerebellar ataxia hereditary ataxia large cell medulloblastoma malignant glioma nephronophthisis 15 nephronophthisis Senior-Loken syndrome Ciliopathies malignant ependymoma ovarian cancer pituitary cancer ciliopathy medulloblastoma oligodendroglioma pancreatic ductal adenocarcinoma polydactyly ulcerative colitis osteosarcoma Pick disease

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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.