Annotations: 8GKL

Crystal Structure of the Humanized MUC16 Specific Antibody huAR9.6

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth H]	MIF4G	e8gklH1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: MIF4G	ECOD (v295)
B [auth L]	MIF4G	e8gklL1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: MIF4G	ECOD (v295)
A [auth E]	gp32	e8gklE01	A: alpha arrays	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: gp32	ECOD (v295)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth H]	Heavy Chain	IGHV5	-	mucin-16	SAbDab (2026-06-26)
B [auth L]	Light Chain	IGKV3	Kappa	mucin-16	SAbDab (2026-06-26)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth E]	PF01390	SEA domain (SEA)	SEA domain	Domain found in Sea urchin sperm protein, Enterokinase, Agrin (SEA). Proposed function of regulating or binding carbohydrate side chains. Recently a proteolytic activity has been shown for a SEA domain [4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth H]	MUC16 antibody AR9.6 Fab heavy chain	-	-	-
B [auth L]	MUC16 antibody AR9.6 Fab light chain	-	-	-
A [auth E]	Mucin-16	-	cell adhesion cellular process	membrane-bounded organelle intracellular anatomical structure Golgi apparatus membrane-enclosed lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen Golgi lumen intracellular organelle cellular anatomical structure organelle lumen organelle cytoplasm cell periphery membrane-bounded organelle intracellular anatomical structure Golgi apparatus membrane-enclosed lumen intracellular membrane-bounded organelle endomembrane system intracellular organelle lumen Golgi lumen intracellular organelle cellular anatomical structure organelle lumen organelle cytoplasm cell periphery plasma membrane membrane cell surface external side of plasma membrane side of membrane vesicle extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth E]	IPR036364	SEA domain superfamily	Homologous Superfamily
A [auth E]	IPR028850	Mucin-16	Family
A [auth E]	IPR000082	SEA domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth E]	: Q8WXI7	ovarian cancer proteinuria cystic fibrosis malignant pancreatic neoplasm ovarian disease psoriasis lung adenocarcinoma nasopharyngeal carcinoma ovarian neoplasm Malignant neoplasm of ovary

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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.