Annotations: 6IAN

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth C]	PF18383	e6ianC1	A: alpha bundles	X: CH domain-like	H: Calponin-homology domain-like (From Topology)	T: Calponin-homology domain-like	F: PF18383	ECOD (1.6)
E	PF08477	e6ianE1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF08477	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth C], D	PF18383	Intraflagellar transport 81 calponin homology domain (IFT81_CH)	Intraflagellar transport 81 calponin homology domain	This is the N-terminal domain found in IFT81 proteins. Crystal structure analysis revealed that IFT81-N adopts the fold of a calponin homology (CH) domain with structural similarity to the kinetochore complex component NDC80 with microtubule (MT)-bin ...	This is the N-terminal domain found in IFT81 proteins. Crystal structure analysis revealed that IFT81-N adopts the fold of a calponin homology (CH) domain with structural similarity to the kinetochore complex component NDC80 with microtubule (MT)-binding properties. Functional analysis show that IFT74 and IFT81 form a tubulin-binding module required for ciliogenesis. It is suggested that IFT81-N binds the globular domain of tubulin to provide specificity, and IFT74-N recognizes the beta-tubulin tail to increase affinity [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C [auth B]	Intraflagellar transport protein 74	monoatomic cation transmembrane transporter activity proton transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity cytoskeletal protein binding beta-tubulin binding protein binding binding tubulin binding	ribose phosphate metabolic process ATP metabolic process ATP biosynthetic process nucleotide biosynthetic process organonitrogen compound biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process purine ribonucleoside triphosphate biosynthetic process proton motive force-driven ATP synthesis nucleobase-containing compound metabolic process ribonucleotide biosynthetic process purine nucleotide metabolic process organic substance metabolic process ribonucleotide metabolic process purine nucleoside triphosphate biosynthetic process ribose phosphate metabolic process ATP metabolic process ATP biosynthetic process nucleotide biosynthetic process organonitrogen compound biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process purine ribonucleoside triphosphate biosynthetic process proton motive force-driven ATP synthesis nucleobase-containing compound metabolic process ribonucleotide biosynthetic process purine nucleotide metabolic process organic substance metabolic process ribonucleotide metabolic process purine nucleoside triphosphate biosynthetic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process purine ribonucleoside triphosphate metabolic process phosphate-containing compound metabolic process organic substance biosynthetic process small molecule metabolic process phosphorus metabolic process ribose phosphate biosynthetic process ribonucleoside triphosphate metabolic process nucleoside phosphate metabolic process carbohydrate derivative biosynthetic process purine nucleoside triphosphate metabolic process organonitrogen compound metabolic process nucleoside triphosphate biosynthetic process cellular metabolic process primary metabolic process nucleotide metabolic process nucleobase-containing compound biosynthetic process ribonucleoside triphosphate biosynthetic process purine-containing compound metabolic process organic cyclic compound metabolic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process organic cyclic compound biosynthetic process nucleoside phosphate biosynthetic process metabolic process cellular process nucleoside triphosphate metabolic process purine ribonucleotide metabolic process purine nucleotide biosynthetic process cellular localization cell projection organization transport plasma membrane bounded cell projection assembly cellular component biogenesis cellular component organization localization cellular component assembly establishment of localization in cell cilium assembly transport along microtubule cellular component organization or biogenesis cilium organization intraciliary transport organelle assembly plasma membrane bounded cell projection organization intraciliary transport involved in cilium assembly intracellular transport establishment of localization protein-containing complex localization organelle organization microtubule-based transport cytoskeleton-dependent intracellular transport microtubule-based movement microtubule-based process cell projection assembly	membrane-bounded organelle cell projection organelle cilium cellular anatomical entity plasma membrane bounded cell projection protein-containing complex intraciliary transport particle intracellular anatomical structure cytoplasm ATPase complex mitochondrial membrane organelle inner membrane mitochondrion membrane-bounded organelle cell projection organelle cilium cellular anatomical entity plasma membrane bounded cell projection protein-containing complex intraciliary transport particle intracellular anatomical structure cytoplasm ATPase complex mitochondrial membrane organelle inner membrane mitochondrion membrane protein complex intracellular organelle organelle envelope proton-transporting two-sector ATPase complex proton-transporting ATP synthase complex, coupling factor F(o) mitochondrial proton-transporting ATP synthase complex, coupling factor F(o) mitochondrial protein-containing complex catalytic complex membrane proton-transporting ATP synthase complex intracellular membrane-bounded organelle proton-transporting two-sector ATPase complex, proton-transporting domain mitochondrial inner membrane mitochondrial proton-transporting ATP synthase complex inner mitochondrial membrane protein complex mitochondrial envelope organelle membrane centrosome microtubule organizing center cytoskeleton intracellular non-membrane-bounded organelle microtubule cytoskeleton non-membrane-bounded organelle intraciliary transport particle B
B [auth C], D	Intraflagellar transport protein 81	cytoskeletal protein binding protein binding binding tubulin binding	cellular localization plasma membrane bounded cell projection organization cell projection organization transport intracellular transport establishment of localization protein-containing complex localization cellular component organization localization organelle organization establishment of localization in cell microtubule-based transport cellular process transport along microtubule cellular localization plasma membrane bounded cell projection organization cell projection organization transport intracellular transport establishment of localization protein-containing complex localization cellular component organization localization organelle organization establishment of localization in cell microtubule-based transport cellular process transport along microtubule cytoskeleton-dependent intracellular transport microtubule-based movement microtubule-based process cellular component organization or biogenesis cilium organization intraciliary transport intraciliary retrograde transport organelle assembly plasma membrane bounded cell projection assembly cellular component biogenesis cellular component assembly cilium assembly cell projection assembly	membrane-bounded organelle cell projection organelle cilium cellular anatomical entity plasma membrane bounded cell projection protein-containing complex intraciliary transport particle intracellular organelle centrosome microtubule organizing center intracellular anatomical structure cytoskeleton intracellular non-membrane-bounded organelle membrane-bounded organelle cell projection organelle cilium cellular anatomical entity plasma membrane bounded cell projection protein-containing complex intraciliary transport particle intracellular organelle centrosome microtubule organizing center intracellular anatomical structure cytoskeleton intracellular non-membrane-bounded organelle microtubule cytoskeleton non-membrane-bounded organelle intraciliary transport particle B
E	Rab-like 5	binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding organic cyclic compound binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding organic cyclic compound binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity GTPase 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	protein localization cellular localization establishment of protein localization nitrogen compound transport transport organic substance transport intracellular transport establishment of localization localization protein transport establishment of localization in cell cellular macromolecule localization macromolecule localization cellular process protein localization cellular localization establishment of protein localization nitrogen compound transport transport organic substance transport intracellular transport establishment of localization localization protein transport establishment of localization in cell cellular macromolecule localization macromolecule localization cellular process intracellular protein transport 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	cellular anatomical entity endomembrane system membrane-bounded organelle cell projection organelle cilium plasma membrane bounded cell projection intracellular anatomical structure cytoplasm motile cilium intracellular organelle ciliary basal body microtubule organizing center cytoskeleton cellular anatomical entity endomembrane system membrane-bounded organelle cell projection organelle cilium plasma membrane bounded cell projection intracellular anatomical structure cytoplasm motile cilium intracellular organelle ciliary basal body microtubule organizing center cytoskeleton intracellular non-membrane-bounded organelle microtubule cytoskeleton non-membrane-bounded organelle intraciliary transport particle B protein-containing complex intraciliary transport particle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C [auth B]	IPR036228	ATP synthase, F0 complex, subunit D superfamily, mitochondrial	Homologous Superfamily
A, C [auth B]	IPR029602	Intraflagellar transport protein 74	Family
B [auth C], D	IPR043016	IFT81, N-terminal domain superfamily	Homologous Superfamily
B [auth C], D	IPR041146	IFT81, calponin homology domain	Domain
B [auth C], D	IPR013087	Zinc finger C2H2-type	Domain
B [auth C], D	IPR029600	Intraflagellar transport protein 81	Family
E	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.