Annotations: 4F3F

Crystal Structure of Msln7-64 MORAb-009 FAB complex

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Thera-SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Protein Modification Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d4f3fb_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d4f3fa2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d4f3fa1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C	SCOP2 Family	Mesothelin-like	8047719	4005781	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	Mesothelin-like	8104137	3002829	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	V-set	e4f3fB5	A: alpha arrays	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: V-set	ECOD (v295.2)
A	ABC_tran	e4f3fA1	A: alpha arrays	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: ABC_tran	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C	1.20.970.40	Mainly Alpha	Up-down Bundle	Transferase, Pyrimidine Nucleoside Phosphorylase	Chain A, domain 3	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

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
B	MORAb-009 Fab	VH-CH1	Chimeric (chimeric)	IGHV1-3701, IGHJ201, IGHJ202, IGHJ203, IGHG101, IGHG102, IGHG1*04	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202636-0)
A	MORAb-009 Fab	L-KAPPA	Chimeric (chimeric)	IGKV4-5901, IGKJ401, IGKC*01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202636-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B	Heavy Chain	IGHV1	-	mesothelin	SAbDab (2026-09-18)
A	Light Chain	IGKV4	Kappa	mesothelin	SAbDab (2026-09-18)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

Chain	Name	Target	Provenance Source
B	Amatuximab	MSLN	Therapeutic SAbDab (2026-09-18)
A	Amatuximab	MSLN	Therapeutic SAbDab (2026-09-18)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C	Mesothelin	-	cell adhesion cell-matrix adhesion cell-substrate adhesion cellular process	cell surface cellular anatomical structure cell periphery plasma membrane membrane membrane-bounded organelle intracellular organelle intracellular anatomical structure Golgi apparatus organelle cytoplasm intracellular membrane-bounded organelle endomembrane system membrane-enclosed lumen cell surface cellular anatomical structure cell periphery plasma membrane 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	MORAb-009 Fab heavy chain	-	-	-
A	MORAb-009 Fab light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C	IPR026664	Stereocilin-related	Family
C	IPR010335	Mesothelin	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C	: 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 cribriform carcinoma psoriasis endometrial carcinoma lung carcinoma nasopharyngeal carcinoma benign neoplasm pancreatic neoplasm cribriform carcinoma of breast endometrioid adenocarcinoma gastric cancer

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B	PCA	Parent Component: GLN : AA0031 : 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420