Annotations: 8DFI

Crystal structure of moderately neutralizing / interfering human monoclonal antibody 42C11 Fab in complex with MSP1-19

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth L]	PDEase_I	e8dfiL1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: PDEase_I	ECOD (v294.1)
B [auth H]	PDEase_I	e8dfiH1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: PDEase_I	ECOD (v294.1)
A	PDEase_I	e8dfiA1	A: a/b three-layered sandwiches	X: RNase A-like	H: Cytochrome P450	T: Cytochrome P450	F: PDEase_I	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

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

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth L]	Light Chain	IGLV1	Lambda	merozoite surface protein 1	SAbDab (2026-04-24)
B [auth H]	Heavy Chain	IGHV3	-	merozoite surface protein 1	SAbDab (2026-04-24)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF12946	MSP1 EGF domain 1 (EGF_MSP1_1)	MSP1 EGF domain 1	This EGF-like domain is found at the C-terminus of the malaria parasite MSP1 protein. MSP1 is the merozoite surface protein 1. This domain is part of the C-terminal fragment that is proteolytically processed from the the rest of the protein and is le ...	This EGF-like domain is found at the C-terminus of the malaria parasite MSP1 protein. MSP1 is the merozoite surface protein 1. This domain is part of the C-terminal fragment that is proteolytically processed from the the rest of the protein and is left attached to the surface of the invading parasite.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth L]	42C11 Fab Light Chain	-	-	-
B [auth H]	42C11 Fab Heavy Chain	-	-	-
A	Merozoite surface protein 1	-	biological process involved in interspecies interaction between organisms symbiont entry into host cell viral process symbiont entry into host viral life cycle entry into host cell by a symbiont-containing vacuole biological process involved in interaction with host biological process involved in symbiotic interaction	cellular anatomical structure membrane side of membrane cell periphery plasma membrane vacuolar membrane membrane-bounded organelle intracellular anatomical structure vacuole intracellular membrane-bounded organelle intracellular organelle bounding membrane of organelle organelle cytoplasm cellular anatomical structure membrane side of membrane cell periphery plasma membrane vacuolar membrane membrane-bounded organelle intracellular anatomical structure vacuole intracellular membrane-bounded organelle intracellular organelle bounding membrane of organelle organelle cytoplasm organelle membrane extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR010901	Merozoite surface 1, C-terminal	Domain
A	IPR024730	Merozoite surface protein, EGF domain 1	Domain

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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.