6K6A

Application of anti-helix antibodies in protein structure determination (8188cys-3LRHcys)

External Resource: Annotation

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth B]	d6k6ab_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth A]	d6k6aa_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d6k6ac1	All alpha proteins	immunoglobulin/albumin-binding domain-like	Bacterial immunoglobulin/albumin-binding domains	Immunoglobulin-binding protein A modules	automated matches	(Staphylococcus aureus ) [TaxId: 1280 ],	SCOPe (2.08)
C	d6k6ac2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Staphylococcus aureus ) [TaxId: 1280 ],	SCOPe (2.08)
D	d6k6ad_	All alpha proteins	immunoglobulin/albumin-binding domain-like	Bacterial immunoglobulin/albumin-binding domains	Immunoglobulin-binding protein A modules	automated matches	(Staphylococcus aureus ) [TaxId: 1280 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth B]	PF07686	e6k6aB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)
B [auth A]	PF07686	e6k6aA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)
C	PF02216	e6k6aC1	A: alpha bundles	X: immunoglobulin/albumin-binding domain-like	H: Bacterial immunoglobulin/albumin-binding domains (From Topology)	T: Bacterial immunoglobulin/albumin-binding domains	F: PF02216	ECOD (1.6)
D	PF02216	e6k6aD1	A: alpha bundles	X: immunoglobulin/albumin-binding domain-like	H: Bacterial immunoglobulin/albumin-binding domains (From Topology)	T: Bacterial immunoglobulin/albumin-binding domains	F: PF02216	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	1.20.5.420	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Immunoglobulin FC, subunit C	CATH (utative)
D	1.20.5.420	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Immunoglobulin FC, subunit C	CATH (utative)

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
A [auth B], B [auth A]	3LRH	V-LAMBDA	Homo sapiens (human)	IGLV1-3601, TRAJ5701	V-DOMAIN V-LAMBDA	TR	V-LAMBDA	IMGT (202416-0)
C, D	SpA IgG-binding domain proteinA	SPA	Homo sapiens (human)	SpA*01	R-LIKE-DOMAIN SPA-DOMAIN	RPI	SPA	IMGT (202416-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A [auth B], B [auth A]	Light Chain	IGLV1	Lambda	engineered protein a	SAbDab (2024-04-26)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C, D	PF02216	B domain (B)	B domain	This family contains the B domain of Staphylococcal protein A, which specifically binds to the Fc portion of immunoglobulin G.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B], B [auth A]	3LRH intrabody	-	-	-
C, D	Engineered Protein A	protein-containing complex binding binding immunoglobulin binding IgG binding	-	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, D	IPR009063	Immunoglobulin/albumin-binding domain superfamily	Homologous Superfamily
C, D	IPR005877	YSIRK Gram-positive signal peptide	Domain
C, D	IPR036779	LysM domain superfamily	Homologous Superfamily
C, D	IPR005038	Octapeptide repeat	Repeat
C, D	IPR003132	Protein A, Ig-binding domain	Domain
C, D	IPR018392	LysM domain	Domain
C, D	IPR019931	LPXTG cell wall anchor domain	Domain

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.