Annotations: 4Q66

Structure of Exomer bound to Arf1.

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
K [auth C]	SCOP2B Superfamily	Ras-like P-loop GTPases	8089854	3002022	SCOP2B (2022-06-29)
J [auth L]	SCOP2B Superfamily	Ras-like P-loop GTPases	8089854	3002022	SCOP2B (2022-06-29)
I [auth F]	SCOP2B Superfamily	Ras-like P-loop GTPases	8089854	3002022	SCOP2B (2022-06-29)
G [auth B]	SCOP2B Superfamily	TPR-like	8051938	3001345	SCOP2B (2022-06-29)
F [auth E]	SCOP2B Superfamily	TPR-like	8051938	3001345	SCOP2B (2022-06-29)
E [auth K]	SCOP2B Superfamily	TPR-like	8051938	3001345	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Fibronectin type III	8093399	3002063	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	RBP8/CHS5 N-terminal domain-like	8093391	3002702	SCOP2B (2022-06-29)
C [auth G]	SCOP2B Superfamily	RBP8/CHS5 N-terminal domain-like	8093391	3002702	SCOP2B (2022-06-29)
C [auth G]	SCOP2B Superfamily	Fibronectin type III	8093399	3002063	SCOP2B (2022-06-29)
B [auth J]	SCOP2B Superfamily	RBP8/CHS5 N-terminal domain-like	8093391	3002702	SCOP2B (2022-06-29)
B [auth J]	SCOP2B Superfamily	Fibronectin type III	8093399	3002063	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Fibronectin type III	8093399	3002063	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	RBP8/CHS5 N-terminal domain-like	8093391	3002702	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
L [auth I]		e4q66I1	A: alpha arrays	X: DP domain	H: DP domain	T: DP domain	F:	ECOD (v295.2)
K [auth C]		e4q66C1	A: alpha arrays	X: DP domain	H: DP domain	T: DP domain	F:	ECOD (v295.2)
J [auth L]		e4q66L1	A: alpha arrays	X: DP domain	H: DP domain	T: DP domain	F:	ECOD (v295.2)
I [auth F]		e4q66F1	A: alpha arrays	X: DP domain	H: DP domain	T: DP domain	F:	ECOD (v295.2)
H		e4q66H1	A: alpha arrays	X: DP domain	H: DP domain	T: DP domain	F:	ECOD (v295.2)
G [auth B]	Mtrc-MtrF_II-IV_dom	e4q66B1	A: alpha arrays	X: Alpha-beta plaits	H: Pseudouridine synthase	T: Pseudouridine synthase	F: Mtrc-MtrF_II-IV_dom	ECOD (v295.2)
F [auth E]	Mtrc-MtrF_II-IV_dom	e4q66E1	A: alpha arrays	X: Alpha-beta plaits	H: Pseudouridine synthase	T: Pseudouridine synthase	F: Mtrc-MtrF_II-IV_dom	ECOD (v295.2)
E [auth K]	Mtrc-MtrF_II-IV_dom	e4q66K1	A: alpha arrays	X: Alpha-beta plaits	H: Pseudouridine synthase	T: Pseudouridine synthase	F: Mtrc-MtrF_II-IV_dom	ECOD (v295.2)
D	CHS5_N	e4q66D1	A: alpha arrays	X: DP domain	H: DP domain	T: DP domain	F: CHS5_N	ECOD (v295.2)
C [auth G]	CHS5_N	e4q66G3	A: alpha arrays	X: Alpha helical domain of ribonucleotide reductases	H: Alpha helical domain of ribonucleotide reductases	T: Alpha helical domain of ribonucleotide reductases	F: CHS5_N	ECOD (v295.2)
C [auth G]		e4q66G1	A: alpha arrays	X: Alpha helical domain of ribonucleotide reductases	H: Alpha helical domain of ribonucleotide reductases	T: Alpha helical domain of ribonucleotide reductases	F:	ECOD (v295.2)
B [auth J]	CHS5_N	e4q66J1	A: alpha arrays	X: DP domain	H: DP domain	T: DP domain	F: CHS5_N	ECOD (v295.2)
A	CHS5_N	e4q66A1	A: alpha arrays	X: DP domain	H: DP domain	T: DP domain	F: CHS5_N	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
L [auth I]	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
K [auth C]	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
J [auth L]	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
I [auth F]	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
D	6.20.120.50	Special	Other non-globular	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (4.3.0)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
C [auth G]	6.20.120.50	Special	Other non-globular	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (utative)
C [auth G]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B [auth J]	6.20.120.50	Special	Other non-globular	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (4.3.0)
B [auth J]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A	6.20.120.50	Special	Other non-globular	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (utative)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
I [auth F], J [auth L], K [auth C], L [auth I]	PF00025	ADP-ribosylation factor family (Arf)	ADP-ribosylation factor family	Pfam combines a number of different Prosite families together	Domain
A, B [auth J], C [auth G], D	PF16893	Fibronectin type III domain (fn3_2)	Fibronectin type III domain	This fibronectin type III domain is found in fungal chitin biosynthesis protein CHS5 where, together with the neighbouring BRCT domain (Pfam:PF00533), it binds to the Arf1 GTPase [1].	Domain
A, B [auth J], C [auth G], D	PF16892	Chitin biosynthesis protein CHS5 N-terminus (CHS5_N)	Chitin biosynthesis protein CHS5 N-terminus	This domain is found at the N-terminus of fungal chitin biosynthesis protein CHS5. It functions as a dimerisation domain [1].	Domain
A, B [auth J], C [auth G], D	PF00533	BRCA1 C Terminus (BRCT) domain (BRCT)	BRCA1 C Terminus (BRCT) domain	The BRCT domain is found predominantly in proteins involved in cell cycle checkpoint functions responsive to DNA damage. The BRCT domain of XRCC1 forms a homodimer in the crystal structure. This suggests that pairs of BRCT domains associate as homo- ...	The BRCT domain is found predominantly in proteins involved in cell cycle checkpoint functions responsive to DNA damage. The BRCT domain of XRCC1 forms a homodimer in the crystal structure. This suggests that pairs of BRCT domains associate as homo- or heterodimers. BRCT domains are often found as tandem-repeat pairs [2]. Structures of the BRCA1 BRCT domains revealed a basis for a widely utilised head-to-tail BRCT-BRCT oligomerisation mode [3]. This conserved tandem BRCT architecture facilitates formation of the canonical BRCT phospho-peptide interaction cleft at a groove between the BRCT domains. Disease associated missense and nonsense mutations in the BRCA1 BRCT domains disrupt peptide binding by directly occluding this peptide binding groove, or by disrupting key conserved BRCT core folding determinants [5].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
I [auth F], J [auth L], K [auth C], L [auth I]	ADP-ribosylation factor 1	pyrophosphatase activity GTPase activity G protein activity ribonucleoside triphosphate phosphatase activity molecular function regulator activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding pyrophosphatase activity GTPase activity G protein activity ribonucleoside triphosphate phosphatase activity molecular function regulator activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding	positive regulation of organelle organization regulation of cellular component organization regulation of cellular process positive regulation of cellular component organization regulation of developmental process positive regulation of biological process cellular component organization positive regulation of developmental process anatomical structure development regulation of mitochondrial fusion cellular component organization or biogenesis mitochondrial fusion positive regulation of cellular process regulation of anatomical structure morphogenesis positive regulation of organelle organization regulation of cellular component organization regulation of cellular process positive regulation of cellular component organization regulation of developmental process positive regulation of biological process cellular component organization positive regulation of developmental process anatomical structure development regulation of mitochondrial fusion cellular component organization or biogenesis mitochondrial fusion positive regulation of cellular process regulation of anatomical structure morphogenesis positive regulation of mitochondrial fusion mitochondrion organization developmental process regulation of biological process biological regulation regulation of organelle organization organelle fusion anatomical structure morphogenesis organelle organization regulation of mitochondrion organization cellular process cellular localization establishment of protein localization transport intracellular transport establishment of localization localization protein transport establishment of localization in cell macromolecule localization intracellular protein localization intracellular protein transport catabolic process macroautophagy autophagy metabolic process process utilizing autophagic mechanism Golgi to plasma membrane transport post-Golgi vesicle-mediated transport localization within membrane vesicle-mediated transport vesicle-mediated transport to the plasma membrane Golgi vesicle transport fatty acid metabolic process oxoacid metabolic process ketone metabolic process regulation of lipid metabolic process carboxylic acid metabolic process primary metabolic process regulation of ketone metabolic process regulation of primary metabolic process regulation of small molecule metabolic process regulation of fatty acid metabolic process small molecule metabolic process monocarboxylic acid metabolic process regulation of metabolic process lipid metabolic process organelle fission mitochondrial fission regulation of mitochondrial fission positive regulation of mitochondrial fission protein localization to Golgi membrane protein localization to Golgi apparatus protein localization to organelle protein localization to membrane endoplasmic reticulum to Golgi vesicle-mediated transport regulation of Golgi organization Golgi organization endomembrane system organization	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure Golgi apparatus organelle cytoplasm intracellular membrane-bounded organelle endomembrane system cytosol cell periphery plasma membrane membrane organelle membrane contact site
E [auth K], F [auth E], G [auth B], H	Protein BCH1	small GTPase binding protein binding binding enzyme binding GTPase binding	Golgi to plasma membrane transport cellular localization post-Golgi vesicle-mediated transport transport localization within membrane establishment of localization vesicle-mediated transport vesicle-mediated transport to the plasma membrane localization cellular process Golgi vesicle transport amino sugar biosynthetic process carbohydrate derivative biosynthetic process chitin biosynthetic process Golgi to plasma membrane transport cellular localization post-Golgi vesicle-mediated transport transport localization within membrane establishment of localization vesicle-mediated transport vesicle-mediated transport to the plasma membrane localization cellular process Golgi vesicle transport amino sugar biosynthetic process carbohydrate derivative biosynthetic process chitin biosynthetic process carbohydrate derivative metabolic process chitin metabolic process macromolecule biosynthetic process glucosamine-containing compound biosynthetic process biosynthetic process aminoglycan metabolic process amino sugar metabolic process aminoglycan biosynthetic process metabolic process macromolecule metabolic process establishment of protein localization protein transport macromolecule localization intracellular protein localization	membrane-bounded organelle protein-containing complex intracellular anatomical structure transport vesicle Golgi apparatus intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle trans-Golgi network transport vesicle cellular anatomical structure cytoplasmic vesicle organelle exomer complex membrane-bounded organelle protein-containing complex intracellular anatomical structure transport vesicle Golgi apparatus intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle trans-Golgi network transport vesicle cellular anatomical structure cytoplasmic vesicle organelle exomer complex clathrin-coated vesicle coated vesicle cytoplasm Golgi-associated vesicle vesicle
A, B [auth J], C [auth G], D	Chs5p	small GTPase binding protein binding binding enzyme binding GTPase binding protein dimerization activity	regulation of cellular process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process biological regulation primary metabolic process regulation of cellular process RNA metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process biological regulation primary metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of gene expression biosynthetic process cellular process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process Golgi to plasma membrane transport cellular localization post-Golgi vesicle-mediated transport transport localization within membrane establishment of localization vesicle-mediated transport vesicle-mediated transport to the plasma membrane localization Golgi vesicle transport sexual reproduction cellular developmental process reproductive process cellular component assembly involved in morphogenesis cell wall organization or biogenesis cell development cell wall organization spore wall biogenesis developmental process involved in reproduction meiotic cell cycle process ascospore wall assembly cellular component biogenesis cellular component organization cellular anatomical entity morphogenesis cellular component assembly spore wall assembly sexual sporulation cell differentiation anatomical structure development cell cycle cellular component organization or biogenesis cell cycle process developmental process fungal-type cell wall organization cell wall assembly sexual sporulation resulting in formation of a cellular spore reproductive process in single-celled organism meiotic cell cycle ascospore wall biogenesis fungal-type cell wall assembly sporulation resulting in formation of a cellular spore anatomical structure morphogenesis ascospore formation fungal-type cell wall organization or biogenesis cell wall biogenesis anatomical structure formation involved in morphogenesis sporulation fungal-type cell wall biogenesis external encapsulating structure organization cytoskeleton-dependent cytokinesis mitotic cytokinesis cytokinesis establishment or maintenance of cell polarity mitotic cell cycle establishment of cell polarity mitotic cell cycle process cell division cellular bud site selection establishment of protein localization protein transport macromolecule localization intracellular protein localization carbohydrate derivative catabolic process catabolic process carbohydrate derivative metabolic process chitin metabolic process aminoglycan catabolic process macromolecule catabolic process glucosamine-containing compound catabolic process amino sugar catabolic process aminoglycan metabolic process amino sugar metabolic process chitin catabolic process conjugation with cellular fusion	membrane-bounded organelle protein-containing complex intracellular anatomical structure transport vesicle Golgi apparatus intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle trans-Golgi network transport vesicle cellular anatomical structure cytoplasmic vesicle organelle exomer complex membrane-bounded organelle protein-containing complex intracellular anatomical structure transport vesicle Golgi apparatus intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle trans-Golgi network transport vesicle cellular anatomical structure cytoplasmic vesicle organelle exomer complex clathrin-coated vesicle coated vesicle cytoplasm Golgi-associated vesicle vesicle Golgi apparatus subcompartment organelle subcompartment trans-Golgi network cell projection mating projection cell tip mating projection tip cell pole plasma membrane bounded cell projection site of polarized growth cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
I [auth F], J [auth L], K [auth C], L [auth I]	IPR005225	Small GTP-binding domain	Domain
I [auth F], J [auth L], K [auth C], L [auth I]	IPR045872	ADP-ribosylation factor 1-5	Family
I [auth F], J [auth L], K [auth C], L [auth I]	IPR024156	Small GTPase superfamily, ARF type	Family
I [auth F], J [auth L], K [auth C], L [auth I]	IPR006689	Small GTPase superfamily, ARF/SAR type	Family
I [auth F], J [auth L], K [auth C], L [auth I]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
E [auth K], F [auth E], G [auth B], H	IPR011990	Tetratricopeptide-like helical domain superfamily	Homologous Superfamily
E [auth K], F [auth E], G [auth B], H	IPR015374	Chs5p-Arf1p binding	Family
A, B [auth J], C [auth G], D	IPR003961	Fibronectin type III	Domain
A, B [auth J], C [auth G], D	IPR052827	Exomer complex component Chs5	Family
A, B [auth J], C [auth G], D	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, B [auth J], C [auth G], D	IPR001357	BRCT domain	Domain
A, B [auth J], C [auth G], D	IPR031669	Fibronectin type III domain, fungi	Domain
A, B [auth J], C [auth G], D	IPR031673	Chitin biosynthesis protein Chs5, N-terminal	Domain
A, B [auth J], C [auth G], D	IPR036420	BRCT domain superfamily	Homologous Superfamily
A, B [auth J], C [auth G], D	IPR036116	Fibronectin type III superfamily	Homologous Superfamily