4G7Y | pdb_00004g7y

Crystal structure of voltage sensing domain of Ci-VSP with fragment antibody (R217E, 2.8 A)

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B [auth L]	d4g7yl2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth L]	d4g7yl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A [auth H]	d4g7yh_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth S]	HisKA_3	e4g7yS1	A: alpha bundles	X: jelly-roll	H: Galactose-binding domain-like	T: Galactose-binding domain-like	F: HisKA_3	ECOD (develop294)
B [auth L]	CblD	e4g7yL1	A: alpha bundles	X: DEATH domain	H: 40S ribosomal protein S13 N-terminal domain	T: 40S ribosomal protein S13 N-terminal domain	F: CblD	ECOD (develop294)
A [auth H]	CblD	e4g7yH1	A: alpha bundles	X: DEATH domain	H: 40S ribosomal protein S13 N-terminal domain	T: 40S ribosomal protein S13 N-terminal domain	F: CblD	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
B [auth L]	FRAGMENT ANTIBODY	L-KAPPA	Homo sapiens (human)	IGKV1-501, IGKV1-503, IGKJ101, IGKC01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202610-0)
A [auth H]	FRAGMENT ANTIBODY	VH-CH1	Homo sapiens (human)	IGHV3-6601, IGHV3-6602, IGHV3-6604, IGHJ601, IGHJ602, IGHG101, IGHG102, IGHG104	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202610-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L]	Light Chain	IGKV1	Kappa	voltage-sensor containing phosphatase	SAbDab (2026-03-20)
A [auth H]	Heavy Chain	IGHV3	-	voltage-sensor containing phosphatase	SAbDab (2026-03-20)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth S]	Voltage-sensor containing phosphatase	passive transmembrane transporter activity monoatomic ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity phosphoric ester hydrolase activity hydrolase activity, acting on ester bonds phosphatase activity hydrolase activity catalytic activity	-	cellular anatomical structure membrane
B [auth L]	Fragment antibody light chain	-	-	-
A [auth H]	Fragment antibody heavy chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth S]	IPR005821	Ion transport domain	Domain
C [auth S]	IPR045102	TPTE, protein tyrosine phosphatase-like catalytic domain	Domain
C [auth S]	IPR029021	Protein-tyrosine phosphatase-like	Homologous Superfamily
C [auth S]	IPR000387	Tyrosine-specific protein phosphatases domain	Domain
C [auth S]	IPR035892	C2 domain superfamily	Homologous Superfamily
C [auth S]	IPR029023	Tensin-type phosphatase domain	Domain
C [auth S]	IPR014020	Tensin phosphatase, C2 domain	Domain
C [auth S]	IPR016130	Protein-tyrosine phosphatase, active site	Active Site
C [auth S]	IPR051281	Dual-specificity lipid and protein phosphatase	Family
C [auth S]	IPR027359	Voltage-dependent channel domain superfamily	Homologous Superfamily

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
C [auth S]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
C [auth S]	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
C [auth S]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Potassium, Sodium, & Proton Ion-Selective	Voltage-sensing domain of a voltage-sensitive phosphatase (R217E mutant)

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.