9Z3B | pdb_00009z3b

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A, C, E, G	Light Chain	IGKV4	Kappa	mesothelin	SAbDab (2026-03-06)
B, D, F, H	Heavy Chain	IGHV6	-	mesothelin	SAbDab (2026-03-06)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C, E, G	MSLNB703 Light Chain	-	-	-
I, J, K, L	Mesothelin	-	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
B, D, F, H	MSLNB703 Heavy Chain	-	-	-

Chains	Accession	Name	Type
I, J, K, L	IPR026664	Stereocilin-related	Family
I, J, K, L	IPR010335	Mesothelin	Family

Chains	Drug Target	Associated Disease
I, J, K, L	Pharos: Q13421	cholangiocarcinoma pleural disease 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 attention deficit hyperactivity disorder, inattentive type cholangiocarcinoma pleural disease 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 attention deficit hyperactivity disorder, inattentive type ovarian disease bile duct cancer pancreatic intraductal papillary-mucinous neoplasm cystic fibrosis esophageal adenocarcinoma gastric neoplasm mesothelioma non-small cell lung carcinoma benign mesothelioma ovarian neoplasm bone disease pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia cribriform carcinoma psoriasis endometrial carcinoma lung carcinoma nasopharyngeal carcinoma benign neoplasm pancreatic neoplasm cribriform carcinoma of breast endometrioid adenocarcinoma gastric cancer