Annotations: 9MI0

61-12A01 Fab in complex with HIV-1 GT1.1 v4.1 SOSIP Env trimer and RM20A3 Fab

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody 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)
O	Beta-Casp	e9mi0O1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
I [auth J]	Beta-Casp	e9mi0J1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
C [auth G]	Beta-Casp	e9mi0G1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
R [auth F]	Beta-Casp	e9mi0F1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
L [auth D]	Beta-Casp	e9mi0D1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
F [auth B]	Beta-Casp	e9mi0B1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
Q [auth E]	Beta-Casp	e9mi0E1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
K [auth C]	Beta-Casp	e9mi0C1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
E [auth A]	Beta-Casp	e9mi0A1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
P [auth Q]	Beta-Casp	e9mi0Q1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
J [auth M]	Beta-Casp	e9mi0M1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)
D [auth I]	Beta-Casp	e9mi0I1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth G], I [auth J], O	Heavy Chain	IGHV3	-	envelope glycoprotein gp160	SAbDab (2026-06-05)
D [auth I], J [auth M], P [auth Q]	Light Chain	IGLV2	Lambda	envelope glycoprotein gp160	SAbDab (2026-06-05)
B [auth L], H [auth N], N [auth R]	Light Chain	IGKV3	Kappa	gt1.1 v4.1 sosip gp120	SAbDab (2026-06-05)
A [auth H], G [auth K], M [auth P]	Heavy Chain	IGHV1	-	gt1.1 v4.1 sosip gp120	SAbDab (2026-06-05)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth G], I [auth J], O	RM20A3 heavy chain Fv	-	-	-
F [auth B], L [auth D], R [auth F]	Envelope glycoprotein gp160	structural molecule activity	viral process membrane fusion involved in viral entry into host cell virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral life cycle adhesion of symbiont to host biological process involved in interaction with host biological process involved in symbiotic interaction symbiont entry into host cell symbiont entry into host	virion component viral membrane viral envelope host cell plasma membrane host cellular component cellular anatomical structure host cell part host cell membrane other organism part virion membrane host intracellular membrane-bounded organelle host intracellular part host cell cytoplasm part host intracellular organelle virion component viral membrane viral envelope host cell plasma membrane host cellular component cellular anatomical structure host cell part host cell membrane other organism part virion membrane host intracellular membrane-bounded organelle host intracellular part host cell cytoplasm part host intracellular organelle host cell endosome membrane host cell cytoplasm host cell endosome host intracellular region
E [auth A], K [auth C], Q [auth E]	GT1.1 v4.1 SOSIP gp120	-	-	-
D [auth I], J [auth M], P [auth Q]	RM20A3 light chain Fv	-	-	-
B [auth L], H [auth N], N [auth R]	61_12A01 kappa chain Fv	-	-	-
A [auth H], G [auth K], M [auth P]	61_12A01 heavy chain Fv	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
F [auth B], L [auth D], R [auth F]	IPR000777	Human immunodeficiency virus 1, envelope glycoprotein Gp120	Domain
F [auth B], L [auth D], R [auth F]	IPR036377	Gp120 core superfamily	Homologous Superfamily
F [auth B], L [auth D], R [auth F]	IPR000328	Retroviral envelope protein GP41-like	Domain

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

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.

9MI0 | pdb_00009mi0

61-12A01 Fab in complex with HIV-1 GT1.1 v4.1 SOSIP Env trimer and RM20A3 Fab

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

SAbDab Antibody Annotation SAbDab Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage