Annotations: 5MP6

Structure of the Unliganded Fab from HIV-1 Neutralizing Antibody CAP248-2B that Binds to the gp120 C-terminus - gp41 Interface, at two Angstrom resolution.

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Protein Modification Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D [auth L]	d5mp6l2	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)
D [auth L]	d5mp6l1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth Q]	d5mp6q2	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)
B [auth Q]	d5mp6q1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C [auth H]	d5mp6h_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A [auth P]	d5mp6p_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	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)
D [auth L]		e5mp6L1	A: alpha arrays	X: F-type ATP synthase subunit b	H: Bacterial cell wall synthesis membrane enzyme MraY-related	T: Bacterial cell wall synthesis membrane enzyme MraY-related	F:	ECOD (v295.2)
B [auth Q]		e5mp6Q1	A: alpha arrays	X: F-type ATP synthase subunit b	H: Bacterial cell wall synthesis membrane enzyme MraY-related	T: Bacterial cell wall synthesis membrane enzyme MraY-related	F:	ECOD (v295.2)
C [auth H]		e5mp6H1	A: alpha arrays	X: F-type ATP synthase subunit b	H: Bacterial cell wall synthesis membrane enzyme MraY-related	T: Bacterial cell wall synthesis membrane enzyme MraY-related	F:	ECOD (v295.2)
A [auth P]		e5mp6P1	A: alpha arrays	X: F-type ATP synthase subunit b	H: Bacterial cell wall synthesis membrane enzyme MraY-related	T: Bacterial cell wall synthesis membrane enzyme MraY-related	F:	ECOD (v295.2)

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 (4.3.0)
B [auth Q]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
C [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A [auth P]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth Q], D [auth L]	Light Chain	IGLV2	Lambda	-	SAbDab (2026-08-21)
A [auth P], C [auth H]	Heavy Chain	IGHV4	-	-	SAbDab (2026-08-21)

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B [auth Q], D [auth L]	PCA	Parent Component: GLN : AA0031 : 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420
A [auth P], C [auth H]	PCA	Parent Component: GLN : AA0031 , AA0031 : 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420 , 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420

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