Annotations: 7Z12

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth A]	Proton_antipo_M,Proton_antipo_N	e7z12A01	A: beta barrels	X: Fe-binding domain in prismane-like proteins	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Proton_antipo_M,Proton_antipo_N	ECOD (v294.2)
B [auth C]	KRAB	e7z12C1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: KRAB	ECOD (v294.2)
A [auth B]	KRAB	e7z12B1	A: beta barrels	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: KRAB	ECOD (v294.2)

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth C]	Light Chain	IGKV1	Kappa	var2csa	SAbDab (2026-05-15)
A [auth B]	Heavy Chain	IGHV3	-	var2csa	SAbDab (2026-05-15)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth A]	VAR2CSA	host cell surface binding binding host cell surface receptor binding	-	cellular anatomical structure membrane
B [auth C]	PAM1.4, light Chain	-	-	-
A [auth B]	PAM1.4, Heavy Chain	-	-	-

Chains	Accession	Name	Type
C [auth A]	IPR008602	Duffy-antigen binding domain	Domain
C [auth A]	IPR044932	Plasmodium falciparum erythrocyte membrane protein 1, acidic terminal segment superfamily	Homologous Superfamily
C [auth A]	IPR042202	Duffy-antigen binding superfamily	Homologous Superfamily
C [auth A]	IPR032761	Plasmodium falciparum erythrocyte membrane protein 1, N-terminal	Domain
C [auth A]	IPR029211	Plasmodium falciparum erythrocyte membrane protein 1, acidic terminal segment	Domain

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.

7Z12 | pdb_00007z12