8PJE

Human Leukocyte Antigen class II allotype DR1 presenting influenza A virus haemagglutinin (HA)306-318 PKYVKQNTLKLAT

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D (A, D)	HLA class II histocompatibility antigen, DR alpha chain	polymer	186	21562.4	2	UniProt (P01903) Pfam (PF00993) Pfam (PF07654)	Homo sapiens (human)	MHC class II antigen DRA
2	B, E (B, E)	HLA class II histocompatibility antigen, DRB1 beta chain	polymer	194	22487.2	2	UniProt (P01911) Pfam (PF00969) Pfam (PF07654)	Homo sapiens (human)	Human leukocyte antigen DRB1,HLA-DRB1
3	C, F (C, F)	Hemagglutinin	polymer	13	1506.8	2	UniProt (P03435) UniProt (by SIFTS) (P03437)	Influenza A virus
4	CA, G (D, A)	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID	non-polymer		238.3	2	Chemie (EPE)
5	AA, DA, EA, FA, GA... (C, D, A, E, B...)	1,2-ETHANEDIOL	non-polymer		62.1	27	Chemie (EDO)
6	BA, M, N, OA, PA... (C, A, E, B)	GLYCEROL	non-polymer		92.1	11	Chemie (GOL)
7	UA, VA, WA, XA, YA... (A, B, C, D, E...)	water	water		18.0	571	Chemie (HOH)

Sequence modifications

A, D: 1 - 182 (UniProt: P01903)

PDB	External Database	Details
Met -3	-	initiating methionine
Gly -2	-	expression tag
Ser -1	-	expression tag
Met 0	-	expression tag

B, E: 1 - 190 (UniProt: P01911)

PDB	External Database	Details
Met -3	-	initiating methionine
Gly -2	-	expression tag
Ser -1	-	expression tag
Met 0	-	expression tag
Leu 11	Pro 40	variant
Phe 13	Arg 42	variant
Leu 26	Phe 55	variant
Glu 28	Asp 57	variant
Cys 30	Tyr 59	variant
Ile 31	Phe 60	variant
Tyr 47	Phe 76	variant
Leu 67	Ile 96	variant
Arg 71	Ala 100	variant
Gly 86	Val 115	variant
Glu 96	Gln 125	variant
Arg 133	Leu 162	variant
Val 142	Met 171	variant

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	91112.8
Non-Polymers*	Number of molecules	40
	Total formula weight	3165.5
All*	Total formula weight	94278.3

*Water molecules are not included.