Annotations: 8X2U

Radial spoke head-neck dimer

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
N [auth M]	e8x2uM1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F:	ECOD (v295)
D [auth E]	e8x2uE1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F:	ECOD (v295)
L [auth K]	e8x2uK1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F:	ECOD (v295)
B	e8x2uB1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F:	ECOD (v295)
K [auth C]	e8x2uC1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F:	ECOD (v295)
A	e8x2uA1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F:	ECOD (v295)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
F [auth G], I [auth J], P [auth O], S [auth R]	PF04712	Radial spokehead-like protein (Radial_spoke)	Radial spokehead-like protein	-	Family
E [auth F], H [auth I], O [auth N], R [auth Q]	PF02493	MORN repeat (MORN)	MORN repeat	-	Repeat
D [auth E], N [auth M]	PF05186	Dpy-30 motif (Dpy-30)	Dpy-30 motif	-	Motif
D [auth E], N [auth M]	PF00334	Nucleoside diphosphate kinase (NDK)	Nucleoside diphosphate kinase		Domain
B, L [auth K]	PF01556	DnaJ C terminal domain (DnaJ_C)	DnaJ C terminal domain	This family consists of the C terminal region of the DnaJ protein. It is always found associated with Pfam:PF00226 and Pfam:PF00684. DnaJ is a chaperone associated with the Hsp70 heat-shock system involved in protein folding and renaturation after ...	This family consists of the C terminal region of the DnaJ protein. It is always found associated with Pfam:PF00226 and Pfam:PF00684. DnaJ is a chaperone associated with the Hsp70 heat-shock system involved in protein folding and renaturation after stress. The two C-terminal domains CTDI and CTDII, both incorporated in this family are necessary for maintaining the J-domains in their specific relative positions [2]. Structural analysis of PDB:1nlt shows that PF00684 is nested within this DnaJ C-terminal region [3].	Domain
A, K [auth C]	PF05186	Dpy-30 motif (Dpy-30)	Dpy-30 motif	-	Motif

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
G [auth H], J [auth c], Q [auth P], T [auth d]	Radial spoke head protein 9 homolog	-	sexual reproduction reproductive process mating multi-organism reproductive process organelle assembly plasma membrane bounded cell projection organization protein-containing complex organization cell projection organization microtubule cytoskeleton organization plasma membrane bounded cell projection assembly cellular component organization cellular component biogenesis microtubule bundle formation organelle organization sexual reproduction reproductive process mating multi-organism reproductive process organelle assembly plasma membrane bounded cell projection organization protein-containing complex organization cell projection organization microtubule cytoskeleton organization plasma membrane bounded cell projection assembly cellular component organization cellular component biogenesis microtubule bundle formation organelle organization cellular component assembly protein-containing complex assembly cilium assembly radial spoke assembly cellular process microtubule-based process cellular component organization or biogenesis axoneme assembly cytoskeleton organization cilium organization cell projection assembly microtubule-based movement cilium movement motile cilium assembly cilium-dependent cell motility cilium movement involved in cell motility cell motility cilium or flagellum-dependent cell motility axonemal central apparatus assembly sperm motility flagellated sperm motility localization epithelial cilium movement involved in extracellular fluid movement transport extracellular transport microtubule-based transport establishment of localization	membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection 9+2 non-motile cilium non-motile cilium stereocilium bundle neuron projection kinocilium cluster of actin-based cell projections intracellular anatomical structure axoneme membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection 9+2 non-motile cilium non-motile cilium stereocilium bundle neuron projection kinocilium cluster of actin-based cell projections intracellular anatomical structure axoneme ciliary plasm intracellular membraneless organelle intracellular organelle cytoskeleton membraneless organelle cytoplasm protein-containing complex radial spoke head radial spoke radial spoke 1 radial spoke head 1 extracellular region 9+2 motile cilium sperm flagellum motile cilium radial spoke head 3 radial spoke 3
F [auth G], I [auth J], P [auth O], S [auth R]	Radial spoke head protein 4 homolog A	-	organelle assembly plasma membrane bounded cell projection organization protein-containing complex organization cell projection organization microtubule cytoskeleton organization plasma membrane bounded cell projection assembly cellular component organization cellular component biogenesis microtubule bundle formation organelle organization cellular component assembly protein-containing complex assembly cilium assembly radial spoke assembly organelle assembly plasma membrane bounded cell projection organization protein-containing complex organization cell projection organization microtubule cytoskeleton organization plasma membrane bounded cell projection assembly cellular component organization cellular component biogenesis microtubule bundle formation organelle organization cellular component assembly protein-containing complex assembly cilium assembly radial spoke assembly cellular process microtubule-based process cellular component organization or biogenesis axoneme assembly cytoskeleton organization cilium organization cell projection assembly microtubule-based movement cilium movement cilium-dependent cell motility cilium movement involved in cell motility cell motility cilium or flagellum-dependent cell motility localization epithelial cilium movement involved in extracellular fluid movement transport extracellular transport microtubule-based transport establishment of localization maintenance of ciliary planar beating movement pattern regulation of biological process regulation of cellular process regulation of microtubule-based process biological regulation regulation of microtubule-based movement regulation of cilium movement	membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection protein-containing complex radial spoke head intracellular anatomical structure axoneme ciliary plasm radial spoke intracellular membraneless organelle radial spoke 2 membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection protein-containing complex radial spoke head intracellular anatomical structure axoneme ciliary plasm radial spoke intracellular membraneless organelle radial spoke 2 intracellular organelle radial spoke head 2 cytoskeleton membraneless organelle cytoplasm radial spoke 1 radial spoke head 1 extracellular region radial spoke head 3 radial spoke 3 9+2 motile cilium motile cilium
E [auth F], H [auth I], O [auth N], R [auth Q]	Radial spoke head 1 homolog	-	sexual reproduction reproductive process mating multi-organism reproductive process developmental process spermatid development spermatid differentiation cellular developmental process spermatogenesis multicellular organismal reproductive process cell development cellular process involved in reproduction in multicellular organism developmental process involved in reproduction gamete generation sexual reproduction reproductive process mating multi-organism reproductive process developmental process spermatid development spermatid differentiation cellular developmental process spermatogenesis multicellular organismal reproductive process cell development cellular process involved in reproduction in multicellular organism developmental process involved in reproduction gamete generation male gamete generation cell differentiation anatomical structure development germ cell development cellular process microtubule-based movement microtubule-based process cilium movement meiotic cell cycle cell cycle organelle assembly plasma membrane bounded cell projection organization cell projection organization microtubule cytoskeleton organization plasma membrane bounded cell projection assembly cellular component organization cellular component biogenesis microtubule bundle formation organelle organization cellular component assembly cilium assembly cellular component organization or biogenesis axoneme assembly cytoskeleton organization cilium organization cell projection assembly sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility cell motility localization epithelial cilium movement involved in extracellular fluid movement transport extracellular transport microtubule-based transport establishment of localization	membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection intracellular anatomical structure axoneme ciliary plasm intracellular membraneless organelle intracellular organelle cytoskeleton membraneless organelle cytoplasm membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection intracellular anatomical structure axoneme ciliary plasm intracellular membraneless organelle intracellular organelle cytoskeleton membraneless organelle cytoplasm protein-containing complex radial spoke head radial spoke radial spoke 1 radial spoke head 1 polymeric cytoskeletal fiber outer dense fiber 9+2 motile cilium motile cilium supramolecular fiber supramolecular polymer supramolecular complex sperm flagellum extracellular region condensed nuclear chromosome nucleus membrane-enclosed lumen nuclear chromosome chromosome intracellular membrane-bounded organelle intracellular organelle lumen organelle lumen condensed chromosome nuclear lumen radial spoke head 3 radial spoke 3 spindle meiotic spindle microtubule cytoskeleton
D [auth E], N [auth M]	Nucleoside diphosphate kinase homolog 5	DNA exonuclease activity catalytic activity, acting on a nucleic acid 3'-5' exonuclease activity hydrolase activity DNA exonuclease activity, producing 5'-phosphomonoesters DNA nuclease activity hydrolase activity, acting on ester bonds nuclease activity catalytic activity, acting on DNA 3'-5'-DNA exonuclease activity exonuclease activity catalytic activity	sexual reproduction reproductive process mating multi-organism reproductive process developmental process spermatid development spermatid differentiation cellular developmental process spermatogenesis multicellular organismal reproductive process cell development cellular process involved in reproduction in multicellular organism developmental process involved in reproduction gamete generation sexual reproduction reproductive process mating multi-organism reproductive process developmental process spermatid development spermatid differentiation cellular developmental process spermatogenesis multicellular organismal reproductive process cell development cellular process involved in reproduction in multicellular organism developmental process involved in reproduction gamete generation male gamete generation cell differentiation anatomical structure development germ cell development cellular process microtubule-based movement microtubule-based process cilium movement catabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process DNA catabolic process nucleic acid catabolic process metabolic process macromolecule metabolic process cellular response to stimulus intrinsic apoptotic signaling pathway in response to oxidative stress regulation of cellular process regulation of oxidative stress-induced intrinsic apoptotic signaling pathway response to stimulus signaling negative regulation of signaling negative regulation of intracellular signal transduction negative regulation of biological process regulation of signal transduction regulation of programmed cell death regulation of intrinsic apoptotic signaling pathway intracellular signal transduction negative regulation of cell communication cell communication regulation of intracellular signal transduction negative regulation of apoptotic signaling pathway negative regulation of cellular process signal transduction intrinsic apoptotic signaling pathway regulation of biological process regulation of signaling negative regulation of response to stimulus negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathway cell death negative regulation of signal transduction apoptotic signaling pathway negative regulation of intrinsic apoptotic signaling pathway negative regulation of apoptotic process regulation of response to stimulus regulation of cell communication apoptotic process programmed cell death regulation of apoptotic signaling pathway ribose phosphate metabolic process nucleotide biosynthetic process carbohydrate derivative metabolic process pyrimidine nucleotide metabolic process ribonucleotide biosynthetic process ribonucleotide metabolic process pyrimidine ribonucleoside triphosphate biosynthetic process nucleobase-containing small molecule metabolic process small molecule metabolic process pyrimidine nucleoside triphosphate biosynthetic process pyrimidine-containing compound biosynthetic process phosphorus metabolic process ribose phosphate biosynthetic process pyrimidine ribonucleotide metabolic process nucleoside phosphate metabolic process carbohydrate derivative biosynthetic process pyrimidine-containing compound metabolic process pyrimidine nucleoside triphosphate metabolic process nucleoside triphosphate biosynthetic process nucleotide metabolic process nucleobase-containing compound biosynthetic process ribonucleoside triphosphate biosynthetic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process pyrimidine ribonucleoside triphosphate metabolic process UTP biosynthetic process nucleoside triphosphate metabolic process UTP metabolic process pyrimidine nucleotide biosynthetic process pyrimidine ribonucleotide biosynthetic process GTP metabolic process GTP biosynthetic process purine ribonucleotide biosynthetic process purine ribonucleoside triphosphate biosynthetic process purine nucleotide metabolic process purine nucleoside triphosphate biosynthetic process purine-containing compound biosynthetic process purine ribonucleoside triphosphate metabolic process purine nucleoside triphosphate metabolic process purine-containing compound metabolic process purine ribonucleotide metabolic process purine nucleotide biosynthetic process CTP biosynthetic process CTP metabolic process response to oxidative stress response to stress response to chemical response to oxygen-containing compound response to reactive oxygen species multicellular organismal process head development animal organ development brain development nervous system development multicellular organism development central nervous system development ventricular system development system development sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility cell motility organelle assembly plasma membrane bounded cell projection organization 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 epithelial cilium movement involved in extracellular fluid movement transport extracellular transport microtubule-based transport establishment of localization	membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection extracellular region protein-containing complex intracellular anatomical structure axoneme ciliary plasm radial spoke intracellular membraneless organelle intracellular organelle membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection extracellular region protein-containing complex intracellular anatomical structure axoneme ciliary plasm radial spoke intracellular membraneless organelle intracellular organelle cytoskeleton membraneless organelle cytoplasm 9+2 motile cilium sperm flagellum motile cilium
C [auth D], M [auth L]	Radial spoke head protein 3 homolog B	-	sexual reproduction reproductive process mating multi-organism reproductive process microtubule-based movement microtubule-based process cellular process cilium movement sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility cell motility sexual reproduction reproductive process mating multi-organism reproductive process microtubule-based movement microtubule-based process cellular process cilium movement sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility cell motility localization epithelial cilium movement involved in extracellular fluid movement transport extracellular transport microtubule-based transport establishment of localization	membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection intracellular anatomical structure axoneme ciliary plasm intracellular membraneless organelle intracellular organelle cytoskeleton membraneless organelle cytoplasm membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection intracellular anatomical structure axoneme ciliary plasm intracellular membraneless organelle intracellular organelle cytoskeleton membraneless organelle cytoplasm protein-containing complex radial spoke head radial spoke radial spoke 1 radial spoke head 1 extracellular region 9+2 motile cilium sperm flagellum motile cilium radial spoke head 3 radial spoke 3
B, L [auth K]	DnaJ homolog subfamily B member 13	protein binding binding protein-folding chaperone binding	sexual reproduction reproductive process mating multi-organism reproductive process protein folding biosynthetic process metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process protein maturation sexual reproduction reproductive process mating multi-organism reproductive process protein folding biosynthetic process metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process protein maturation axonemal central apparatus assembly organelle assembly plasma membrane bounded cell projection organization cell projection organization microtubule cytoskeleton organization plasma membrane bounded cell projection assembly cellular component biogenesis cellular component organization microtubule bundle formation organelle organization cellular component assembly cilium assembly microtubule-based process cellular component organization or biogenesis axoneme assembly cytoskeleton organization cilium organization cell projection assembly sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement cilium movement cell motility localization epithelial cilium movement involved in extracellular fluid movement transport extracellular transport microtubule-based transport establishment of localization	membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection intracellular anatomical structure axoneme ciliary plasm intracellular membraneless organelle intracellular organelle cytoskeleton membraneless organelle cytoplasm membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection intracellular anatomical structure axoneme ciliary plasm intracellular membraneless organelle intracellular organelle cytoskeleton membraneless organelle cytoplasm sperm end piece 9+2 motile cilium sperm flagellum motile cilium cytosol protein-containing complex radial spoke sperm principal piece sperm midpiece sperm head-tail coupling apparatus extracellular region
A, K [auth C]	DPY30 domain containing 2	-	-	membrane-bounded organelle intracellular anatomical structure axoneme ciliary plasm cilium intracellular membraneless organelle plasma membrane bounded cell projection intracellular organelle cell projection cellular anatomical structure cytoskeleton organelle membraneless organelle cytoplasm membrane-bounded organelle intracellular anatomical structure axoneme ciliary plasm cilium intracellular membraneless organelle plasma membrane bounded cell projection intracellular organelle cell projection cellular anatomical structure cytoskeleton organelle membraneless organelle cytoplasm protein-containing complex Set1C/COMPASS complex histone methyltransferase complex catalytic complex nucleus membrane-enclosed lumen nuclear protein-containing complex intracellular membrane-bounded organelle transferase complex intracellular organelle lumen nucleoplasm organelle lumen methyltransferase complex nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
G [auth H], J [auth c], Q [auth P], T [auth d]	IPR055316	Radial spoke head protein 9 homolog	Family
F [auth G], I [auth J], P [auth O], S [auth R]	IPR006802	Radial spokehead-like protein	Family
E [auth F], H [auth I], O [auth N], R [auth Q]	IPR003409	MORN repeat	Repeat
D [auth E], N [auth M]	IPR034907	Nucleoside diphosphate kinase-like domain	Domain
D [auth E], N [auth M]	IPR007858	Dpy-30 motif	Conserved Site
D [auth E], N [auth M]	IPR036850	Nucleoside diphosphate kinase-like domain superfamily	Homologous Superfamily
D [auth E], N [auth M]	IPR012410	Nucleoside-diphosphate kinase-like NDK-H5	Family
D [auth E], N [auth M]	IPR001564	Nucleoside diphosphate kinase	Family
C [auth D], M [auth L]	IPR009290	Radial spoke 3	Family
B, L [auth K]	IPR001623	DnaJ domain	Domain
B, L [auth K]	IPR051339	DnaJ homolog subfamily B	Family
B, L [auth K]	IPR018253	DnaJ domain, conserved site	Conserved Site
B, L [auth K]	IPR002939	Chaperone DnaJ, C-terminal	Domain
B, L [auth K]	IPR036869	Chaperone J-domain superfamily	Homologous Superfamily
B, L [auth K]	IPR008971	HSP40/DnaJ peptide-binding	Homologous Superfamily
A, K [auth C]	IPR007858	Dpy-30 motif	Conserved Site
A, K [auth C]	IPR037856	Sdc1/DPY30	Family
A, K [auth C]	IPR049630	DPY30 domain-containing protein-like, dimerization/docking domain	Domain

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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.

8X2U | pdb_00008x2u

Radial spoke head-neck dimer

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage