2XRA

crystal structure of the HK20 Fab in complex with a gp41 mimetic 5- Helix

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	TRANSMEMBRANE PROTEIN GP41	polymer	228	25721.7	1	UniProt (P04578) Pfam (PF00517) In PDB	SYNTHETIC CONSTRUCT
2	H	HK20, HUMAN MONOCLONAL ANTIBODY HEAVY CHAIN	polymer	223	23609.5	1		HOMO SAPIENS (HUMAN)
3	L	HK20, HUMAN MONOCLONAL ANTIBODY LIGHT CHAIN	polymer	215	23630.2	1		HOMO SAPIENS (HUMAN)
4		water	water		18.0	118	Chemie (HOH)

Sequence modifications

A: 543 - 582 (UniProt: P04578)

PDB	External Database	Details
Met 542	-	expression tag
Leu 4583	-	expression tag
Glu 4584	-	expression tag
Gly 4585	-	expression tag
Gly 4586	-	expression tag
His 4587	-	expression tag
His 4588	-	expression tag
His 4589	-	expression tag
His 4590	-	expression tag
His 4591	-	expression tag
His 4592	-	expression tag
Gly 4593	-	expression tag

A: 1625 - 1662 (UniProt: P04578)

PDB	External Database	Details
Gly 583	-	insertion
Gly 584	-	insertion
Ser 585	-	insertion
Gly 586	-	insertion
Gly 587	-	insertion

A: 2543 - 2582 (UniProt: P04578)

PDB	External Database	Details
Gly 1663	-	insertion
Ser 1664	-	insertion
Ser 1665	-	insertion
Gly 2541	-	insertion
Gly 2542	-	insertion

A: 3625 - 3662 (UniProt: P04578)

PDB	External Database	Details
Gly 3620	-	insertion
Gly 3621	-	insertion
Ser 3622	-	insertion
Gly 3623	-	insertion
Gly 3624	-	insertion

A: 4543 - 4582 (UniProt: P04578)

PDB	External Database	Details
Gly 3663	-	insertion
Ser 3664	-	insertion
Ser 3665	-	insertion
Gly 3666	-	insertion
Gly 3667	-	insertion

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	72961.5
All*	Total formula weight	72961.5

*Water molecules are not included.