Annotations: 6B0A

Crystal structure of Pfs25 in complex with the transmission blocking antibody 1269

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B [auth L]	d6b0al1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth L]	d6b0al2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth A]	Methyltransf_25	e6b0aA1	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II	H: Rubredoxin-related	T: Tetrapyrrole methylase C-terminal domain	F: Methyltransf_25	ECOD (v294.1)
B [auth L]	MH1	e6b0aL1	A: a/b three-layered sandwiches	X: Protein kinase/SAICAR synthase/ATP-grasp	H: Protein kinase/SAICAR synthase/ATP-grasp	T: Undecaprenyl diphosphate synthase	F: MH1	ECOD (v294.1)
A [auth H]	MH1	e6b0aH1	A: a/b three-layered sandwiches	X: Protein kinase/SAICAR synthase/ATP-grasp	H: Protein kinase/SAICAR synthase/ATP-grasp	T: Undecaprenyl diphosphate synthase	F: MH1	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth A]	2.90.20.10	Mainly Beta	Orthogonal Prism	Plasmodium vivax P25 fold	Plasmodium vivax P25 domain	CATH (4.3.0)
B [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A [auth H]	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 [auth L]	Fab 1269	L-KAPPA	Homo sapiens (human)	IGKV3-2001, IGKJ501, IGKC*01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202615-0)
A [auth H]	Fab 1269	VH-CH1	Homo sapiens (human)	IGHV3-2304, IGHJ301, IGHG101, IGHG102, IGHG104, IGHG105	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202615-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L]	Light Chain	IGKV3	Kappa	25 kda ookinete surface antigen	SAbDab (2026-04-24)
A [auth H]	Heavy Chain	IGHV3	-	25 kda ookinete surface antigen	SAbDab (2026-04-24)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth A]	25 kDa ookinete surface antigen	-	-	cell surface cellular anatomical structure membrane side of membrane cell periphery plasma membrane
B [auth L]	1269 antibody, light chain	-	-	-
A [auth H]	1269 antibody, heavy chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth A]	IPR010423	Ookinete surface antigen, EGF domain	Domain
C [auth A]	IPR000742	EGF-like domain	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.