Annotations: 8SJK

Pembrolizumab Caffeine crystal

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Thera-SAbDab Antibody Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B		e8sjkB1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
A		e8sjkA1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B	Heavy Chain	IGHV1	-	CAFFEINE	SAbDab (2026-09-11)
A	Light Chain	IGKV3	Kappa	CAFFEINE	SAbDab (2026-09-11)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

Chain	Name	Target	Provenance Source
B	Pembrolizumab	PDCD1/CD279/PD1	Therapeutic SAbDab (2026-09-11)
A	Pembrolizumab	PDCD1/CD279/PD1	Therapeutic SAbDab (2026-09-11)

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