Annotations: 8CZ8

Novel Anti-Mesothelin Antibodies Enable Crystallography of the Intact Mesothelin Ectodo- main and Engineering of Potent, T cell-engaging Bispecific Therapeutics

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
Thera-SAbDab Antibody 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)
F [auth B]	Polyketide_cyc2	e8cz8B1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Polyketide_cyc2	ECOD (v294.2)
D		e8cz8D1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F:	ECOD (v294.2)
A [auth C]		e8cz8C1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F:	ECOD (v294.2)
E [auth A]	Polyketide_cyc2	e8cz8A1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Polyketide_cyc2	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F [auth B]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

Chain	Name	Target	Provenance Source
A [auth C], E [auth A]	Anetumab	MSLN	Therapeutic SAbDab (2026-05-08)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D, F [auth B]	scFv of A12 anti-mesothelin antibody	-	-	-
B [auth M], C [auth E]	Mesothelin, cleaved form	-	cell adhesion cell-matrix adhesion cell-substrate adhesion cellular process	cell surface cellular anatomical structure membrane side of membrane cell periphery plasma membrane membrane-bounded organelle intracellular organelle intracellular anatomical structure Golgi apparatus organelle cytoplasm intracellular membrane-bounded organelle endomembrane system cell surface cellular anatomical structure membrane side of membrane cell periphery plasma membrane membrane-bounded organelle intracellular organelle intracellular anatomical structure Golgi apparatus organelle cytoplasm intracellular membrane-bounded organelle endomembrane system membrane-enclosed lumen intracellular organelle lumen endoplasmic reticulum lumen organelle lumen endoplasmic reticulum extracellular region
A [auth C], E [auth A]	scFv Anetumab	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth M], C [auth E]	IPR026664	Stereocilin-related	Family
B [auth M], C [auth E]	IPR010335	Mesothelin	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B [auth M], C [auth E]	: Q13421	pleural disease cholangiocarcinoma malignant mesothelioma pancreatic ductal adenocarcinoma cancer Lymphatic Metastasis mesothelial neoplasm adenocarcinoma intrahepatic cholangiocarcinoma granular cell carcinoma malignant pancreatic neoplasm ovarian cancer tubular adenocarcinoma hereditary diffuse gastric adenocarcinoma ovarian disease pleural disease cholangiocarcinoma malignant mesothelioma pancreatic ductal adenocarcinoma cancer Lymphatic Metastasis mesothelial neoplasm adenocarcinoma intrahepatic cholangiocarcinoma granular cell carcinoma malignant pancreatic neoplasm ovarian cancer tubular adenocarcinoma hereditary diffuse gastric adenocarcinoma ovarian disease attention deficit hyperactivity disorder, inattentive type pancreatic intraductal papillary-mucinous neoplasm bile duct cancer cystic fibrosis esophageal adenocarcinoma gastric neoplasm mesothelioma non-small cell lung carcinoma ovarian neoplasm benign mesothelioma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia bone disease psoriasis cribriform carcinoma endometrial carcinoma lung carcinoma nasopharyngeal carcinoma benign neoplasm pancreatic neoplasm cribriform carcinoma of breast endometrioid adenocarcinoma gastric cancer

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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.