7T74 | pdb_00007t74

HIV-1 Envelope ApexGT2 in complex with PCT64.35S Fab and RM20A3 Fab

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Protein Modification Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Gp23	e7t74B1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Gp23	ECOD (v295)
H [auth D]	Gp23	e7t74D1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Gp23	ECOD (v295)
L [auth F]	Gp23	e7t74F1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Gp23	ECOD (v295)
D [auth G]	Complex1_51K	e7t74G1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Complex1_51K	ECOD (v295)
J [auth N]	Gp23	e7t74N1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Gp23	ECOD (v295)
N [auth J]	Gp23	e7t74J1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Gp23	ECOD (v295)
E [auth L]	Complex1_51K	e7t74L1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Complex1_51K	ECOD (v295)
F [auth H]	Complex1_51K	e7t74H1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Complex1_51K	ECOD (v295)
C [auth K]	Complex1_51K	e7t74K1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Complex1_51K	ECOD (v295)
I [auth M]	Gp23	e7t74M1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Gp23	ECOD (v295)
M [auth I]	Gp23	e7t74I1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Gp23	ECOD (v295)
A	Complex1_51K	e7t74A1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Complex1_51K	ECOD (v295)
G [auth C]	Gp23	e7t74C1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Gp23	ECOD (v295)
K [auth E]	Gp23	e7t74E1	A: alpha arrays	X: cradle loop barrel	H: Cytochrome P450	T: Cytochrome P450	F: Gp23	ECOD (v295)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D [auth G], J [auth N], N [auth J]	Light Chain	IGLV2	Lambda	hiv envelope apexgt2 gp41, hiv envelope apexgt2 gp41 \| hiv envelope apexgt2 gp120	SAbDab (2026-06-26)
E [auth L]	Light Chain	IGKV3	Kappa	hiv envelope apexgt2 gp120 \| hiv envelope apexgt2 gp120	SAbDab (2026-06-26)
F [auth H]	Heavy Chain	IGHV3	-	hiv envelope apexgt2 gp120 \| hiv envelope apexgt2 gp120	SAbDab (2026-06-26)
C [auth K], I [auth M], M [auth I]	Heavy Chain	IGHV3	-	hiv envelope apexgt2 gp41, hiv envelope apexgt2 gp41 \| hiv envelope apexgt2 gp120	SAbDab (2026-06-26)

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
F [auth H]	TYS	Parent Component: TYR : AA0172 : O4'-sulfo-L-tyrosine MOD:00181

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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.