1XFD

Structure of a human A-type Potassium Channel Accelerating factor DPPX, a member of the dipeptidyl aminopeptidase family

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1xfda1	All beta proteins	8-bladed beta-propeller	DPP6 N-terminal domain-like	DPP6 N-terminal domain-like	Dipeptidyl aminopeptidase-like protein 6, DPP6, N-terminal domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d1xfda2	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	DPP6 catalytic domain-like	Dipeptidyl aminopeptidase-like protein 6, DPP6, C-terminal domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1xfdb1	All beta proteins	8-bladed beta-propeller	DPP6 N-terminal domain-like	DPP6 N-terminal domain-like	Dipeptidyl aminopeptidase-like protein 6, DPP6, N-terminal domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d1xfdb2	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	DPP6 catalytic domain-like	Dipeptidyl aminopeptidase-like protein 6, DPP6, C-terminal domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d1xfdc1	All beta proteins	8-bladed beta-propeller	DPP6 N-terminal domain-like	DPP6 N-terminal domain-like	Dipeptidyl aminopeptidase-like protein 6, DPP6, N-terminal domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d1xfdc2	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	DPP6 catalytic domain-like	Dipeptidyl aminopeptidase-like protein 6, DPP6, C-terminal domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d1xfdd1	All beta proteins	8-bladed beta-propeller	DPP6 N-terminal domain-like	DPP6 N-terminal domain-like	Dipeptidyl aminopeptidase-like protein 6, DPP6, N-terminal domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d1xfdd2	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	DPP6 catalytic domain-like	Dipeptidyl aminopeptidase-like protein 6, DPP6, C-terminal domain	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	DPP6 N-terminal domain-like	8031487	4002753	SCOP2 (2022-06-29)
A	SCOP2 Family	DPP6 catalytic domain-like	8031489	4003115	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	DPP6 N-terminal domain-like	8043865	3001705	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	alpha/beta-Hydrolases	8043867	3000102	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	alpha/beta-Hydrolases	8043867	3000102	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	DPP6 N-terminal domain-like	8043865	3001705	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	alpha/beta-Hydrolases	8043867	3000102	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	DPP6 N-terminal domain-like	8043865	3001705	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	alpha/beta-Hydrolases	8043867	3000102	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	DPP6 N-terminal domain-like	8043865	3001705	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)
A	DPPIV_N	e1xfdA1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 8-bladed	F: DPPIV_N	ECOD (1.6)
A	Hydrolase_4	e1xfdA2	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases (From Topology)	H: alpha/beta-Hydrolases (From Topology)	T: alpha/beta-Hydrolases	F: Hydrolase_4	ECOD (1.6)
B	DPPIV_N	e1xfdB1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 8-bladed	F: DPPIV_N	ECOD (1.6)
B	Hydrolase_4	e1xfdB2	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases (From Topology)	H: alpha/beta-Hydrolases (From Topology)	T: alpha/beta-Hydrolases	F: Hydrolase_4	ECOD (1.6)
C	DPPIV_N	e1xfdC1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 8-bladed	F: DPPIV_N	ECOD (1.6)
C	Hydrolase_4	e1xfdC2	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases (From Topology)	H: alpha/beta-Hydrolases (From Topology)	T: alpha/beta-Hydrolases	F: Hydrolase_4	ECOD (1.6)
D	DPPIV_N	e1xfdD1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 8-bladed	F: DPPIV_N	ECOD (1.6)
D	Hydrolase_4	e1xfdD2	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases (From Topology)	H: alpha/beta-Hydrolases (From Topology)	T: alpha/beta-Hydrolases	F: Hydrolase_4	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.140.10.30	Mainly Beta	8 Propeller	Methanol Dehydrogenase	Chain A	CATH (4.3.0)
A	3.40.50.1820	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Alpha/Beta hydrolase fold, catalytic domain	CATH (4.3.0)
B	2.140.10.30	Mainly Beta	8 Propeller	Methanol Dehydrogenase	Chain A	CATH (4.3.0)
B	3.40.50.1820	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Alpha/Beta hydrolase fold, catalytic domain	CATH (4.3.0)
C	2.140.10.30	Mainly Beta	8 Propeller	Methanol Dehydrogenase	Chain A	CATH (4.3.0)
C	3.40.50.1820	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Alpha/Beta hydrolase fold, catalytic domain	CATH (4.3.0)
D	2.140.10.30	Mainly Beta	8 Propeller	Methanol Dehydrogenase	Chain A	CATH (4.3.0)
D	3.40.50.1820	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Alpha/Beta hydrolase fold, catalytic domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00930	Dipeptidyl peptidase IV (DPP IV) N-terminal region (DPPIV_N)	Dipeptidyl peptidase IV (DPP IV) N-terminal region	-	Repeat
A, B, C, D	PF00326	Prolyl oligopeptidase family (Peptidase_S9)	Prolyl oligopeptidase family	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Dipeptidyl aminopeptidase-like protein 6	potassium channel regulator activity channel regulator activity ion channel regulator activity molecular function regulator activity transporter regulator activity peptidase activity serine hydrolase activity catalytic activity, acting on a protein serine-type peptidase activity hydrolase activity catalytic activity	regulation of localization regulation of potassium ion transport regulation of cellular process transport monoatomic ion transmembrane transport potassium ion transmembrane transport regulation of monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport localization monoatomic ion transport monoatomic cation transport regulation of metal ion transport regulation of biological process regulation of localization regulation of potassium ion transport regulation of cellular process transport monoatomic ion transmembrane transport potassium ion transmembrane transport regulation of monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport localization monoatomic ion transport monoatomic cation transport regulation of metal ion transport regulation of biological process regulation of transport regulation of monoatomic ion transport biological regulation inorganic ion transmembrane transport regulation of potassium ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport regulation of transmembrane transport potassium ion transport cellular process regulation of monoatomic cation transmembrane transport protein localization protein localization to cell periphery cellular localization protein localization to plasma membrane cellular macromolecule localization macromolecule localization localization within membrane protein localization to membrane proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	cell periphery plasma membrane membrane cellular anatomical entity voltage-gated potassium channel complex protein-containing complex plasma membrane protein complex potassium channel complex membrane protein complex cation channel complex transporter complex transmembrane transporter complex monoatomic ion channel complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR001375	Peptidase S9, prolyl oligopeptidase, catalytic domain	Domain
A, B, C, D	IPR002469	Dipeptidylpeptidase IV, N-terminal domain	Domain
A, B, C, D	IPR050278	Serine protease S9B/DPPIV	Family
A, B, C, D	IPR029058	Alpha/Beta hydrolase fold	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: P42658	intellectual disability, autosomal dominant 33 amyotrophic lateral sclerosis ventricular fibrillation, paroxysmal familial, 2 autosomal dominant primary microcephaly ventricular fibrillation, paroxysmal familial, type 1 intellectual disability neurodegenerative disease pancreatic intraductal papillary-mucinous carcinoma Paroxysmal ventricular fibrillation adenoma cutaneous lupus erythematosus malignant colon neoplasm medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia intellectual disability, autosomal dominant 33 amyotrophic lateral sclerosis ventricular fibrillation, paroxysmal familial, 2 autosomal dominant primary microcephaly ventricular fibrillation, paroxysmal familial, type 1 intellectual disability neurodegenerative disease pancreatic intraductal papillary-mucinous carcinoma Paroxysmal ventricular fibrillation adenoma cutaneous lupus erythematosus malignant colon neoplasm medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia Pick disease primitive neuroectodermal tumor atypical teratoid rhabdoid tumor glioblastoma large cell medulloblastoma malignant ependymoma ovarian cancer paroxysmal familial ventricular fibrillation pituitary cancer subependymal giant cell astrocytoma autism spectrum disorder breast cancer lung carcinoma malignant glioma

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.