2X7R

Crystal structure of a late fusion intermediate of HIV-1 gp41

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D, F (A, D, N)	TRANSMEMBRANE PROTEIN GP41	polymer	62	6837.9	3	UniProt (P04578) UniProt (by SIFTS) (Q70626)	HUMAN IMMUNODEFICIENCY VIRUS TYPE 1 LW12.3 ISOLATE
2	B, C, E (B, C, E)	TRANSMEMBRANE PROTEIN GP41	polymer	63	7825.5	3	UniProt (P04578) UniProt (by SIFTS) (Q70626)	HUMAN IMMUNODEFICIENCY VIRUS TYPE 1 LW12.3 ISOLATE
3	G, H, I (A, B, E)	SODIUM ION	non-polymer		23.0	3	Chemie (NA)
4	J (E)	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
5	K, L, M, N, O... (A, B, C, D, E...)	water	water		18.0	56	Chemie (HOH)

Sequence modifications

A, D, N: 520 - 527 (PDB: 2X7R)
A, D, N: 528 - 581 (UniProt: P04578)
B, C, E: 621 - 628 (PDB: 2X7R)
B, C, E: 629 - 683 (UniProt: P04578)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	43990.2
Non-Polymers*	Number of molecules	4
	Total formula weight	104.4
All*	Total formula weight	44094.6

*Water molecules are not included.