6MG7 | pdb_00006mg7

Crystal structure of the RV144 C1-C2 specific antibody CH54 Fab in complex with HIV-1 CLADE A/E GP120 and M48U1

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth G]	SCOP2B Superfamily	gp120 core	8096276	3001390	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D [auth L]	Peptidase_M13,Peptidase_M13_N	e6mg7L1	A: alpha bundles	X: P-loop domains-like	H: Hemagglutinin HA2 chain	T: Hemagglutinin HA2 chain	F: Peptidase_M13,Peptidase_M13_N	ECOD (develop294)
C [auth H]	Peptidase_M13,Peptidase_M13_N	e6mg7H1	A: alpha bundles	X: P-loop domains-like	H: Hemagglutinin HA2 chain	T: Hemagglutinin HA2 chain	F: Peptidase_M13,Peptidase_M13_N	ECOD (develop294)
B [auth N]	Peptidase_M13,Peptidase_M13_N	e6mg7N1	A: alpha bundles	X: P-loop domains-like	H: Hemagglutinin HA2 chain	T: Hemagglutinin HA2 chain	F: Peptidase_M13,Peptidase_M13_N	ECOD (develop294)
A [auth G]	Peptidase_M13,Peptidase_M13_N	e6mg7G1	A: alpha bundles	X: P-loop domains-like	H: Hemagglutinin HA2 chain	T: Hemagglutinin HA2 chain	F: Peptidase_M13,Peptidase_M13_N	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

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

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
D [auth L]	Fab CH54	V-KAPPA-C-LAMBDA	Homo sapiens (human)	IGKV1-3901, IGKV1D-3901, IGKJ201, IGLC201, IGLC202, IGLC304	V-DOMAIN V-KAPPA, C-DOMAIN C-LAMBDA	IG	FAB-GAMMA-1_V-KAPPA-C-LAMBDA	IMGT (202610-0)
C [auth H]	Fab CH54	VH-CH1	Homo sapiens (human)	IGHV1-5802, IGHJ401, IGHJ402, IGHJ403, IGHG103, IGHG108, IGHG1*06	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_V-KAPPA-C-LAMBDA	IMGT (202610-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D [auth L]	Light Chain	IGKV1	Kappa	clade a/e 93th057 hiv-1 gp120 core	SAbDab (2026-03-20)
C [auth H]	Heavy Chain	IGHV1	-	clade a/e 93th057 hiv-1 gp120 core	SAbDab (2026-03-20)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D [auth L]	CH54 Fab light chain	-	-	-
C [auth H]	CH54 Fab heavy chain	-	-	-
B [auth N]	M48U1 CD4 mimetic peptide	-	-	-
A [auth G]	clade A/E 93TH057 HIV-1 gp120 core	-	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 virion membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth G]	IPR000777	Human immunodeficiency virus 1, envelope glycoprotein Gp120	Domain
A [auth G]	IPR036377	Gp120 core superfamily	Homologous Superfamily

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B [auth N]	DPR
B [auth N]	MPT
B [auth N]	NH2	RESID: AA0081 , AA0083 , AA0084 , AA0086 , AA0087 , AA0088 , AA0090 , AA0091 , AA0092 , AA0093 , AA0095 , AA0096 , AA0097 , AA0098 , AA0099 , AA0100 PSI-MOD : L-alanine amide MOD:00090 , L-asparagine amide MOD:00092 , L-aspartic acid 1-amide MOD:00093 , L-glutamine amide MOD:00095 , L-glutamic acid 1-amide MOD:00096 , glycine amide MOD:00097 , L-isoleucine amide MOD:00099 , L-leucine amide MOD:00100 , L-lysine amide MOD:00101 , L-methionine amide MOD:00102 , L-proline amide MOD:00104 , L-serine amide MOD:00105 , L-threonine amide MOD:00106 , L-tryptophan amide MOD:00107 , L-tyrosine amide MOD:00108 , L-valine amide MOD:00109
B [auth N]	U2X	Parent Component: TYR RESID: AA0081 , AA0083 , AA0084 , AA0086 , AA0087 , AA0088 , AA0090 , AA0091 , AA0092 , AA0093 , AA0095 , AA0096 , AA0097 , AA0098 , AA0099 , AA0100

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.