9D90

Cryo-EM structure of partially open HIV-1 BG505 SOSIP.664 Env bound to 3-sCD4, 3-17b Fab and 3-VRC34.01 Fab

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C (A, B, C)	Surface protein gp120	polymer	469	52508.4	3	UniProt (Q2N0S5) Pfam (PF00516) UniProt (by SIFTS) (Q2N0S6)	Human immunodeficiency virus 1
2	D, E, F (D, E, F)	Transmembrane protein gp41	polymer	149	16734.0	3	UniProt (Q2N0S5) Pfam (PF00517) UniProt (by SIFTS) (D0PUM0)	Human immunodeficiency virus 1
3	G, I, K (G, I, K)	VRC34.01 heavy chain	polymer	223	23797.6	3		Homo sapiens
4	H, J, L (H, J, L)	VRC34.01 light chain	polymer	212	23138.8	3		Homo sapiens
5	M, N, O (M, N, O)	T-cell surface glycoprotein CD4	polymer	181	20129.9	3	UniProt (P01730) Pfam (PF00047) Pfam (PF05790)	Homo sapiens (human)	T-cell surface antigen T4/Leu-3
6	P, R, T (P, R, T)	17b Fab light chain	polymer	214	23399.9	3		Homo sapiens
7	Q, S, U (Q, S, U)	17b Fab heavy chain	polymer	229	24457.4	3		Homo sapiens
8	V, W, X (V, a, f)	alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		910.8	3	In PDB GlyTouCan (G22768VO)
9	AA, Y, Z (F, D, E)	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	3	Chemie (NAG)

Sequence modifications

A, B, C: 33 - 503 (UniProt: Q2N0S5)

PDB	External Database	Details
Asn 332	Thr 330	engineered mutation
Cys 501	Ala 498	engineered mutation

D, E, F: 512 - 660 (UniProt: Q2N0S5)

PDB	External Database	Details
Pro 559	Ile 556	engineered mutation
Cys 605	Thr 602	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	21
	Total formula weight	552497.9
Branched	Number of molecules	3
	Total formula weight	2732.5
Non-Polymers*	Number of molecules	3
	Total formula weight	663.6
All*	Total formula weight	555894.0

*Water molecules are not included.