6V1A

immune receptor complex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	HLA class II histocompatibility antigen, DR alpha chain	polymer	189	21919.6	1	UniProt (P01903) Pfam (PF00993) Pfam (PF07654)	Homo sapiens (Human)	MHC class II antigen DRA
2	B (B)	HLA class II histocompatibility antigen, DRB1-4 beta chain	polymer	198	23080.5	1	UniProt (P13760) Pfam (PF00969) Pfam (PF07654) UniProt (by SIFTS) (P01911)	Homo sapiens (Human)	MHC class II antigen DRB1*4,DR4
3	C (C)	Fibrinogen beta 74cit69-81	polymer	13	1292.4	1	UniProt (by SIFTS) (P02675)	Homo sapiens
4	D (D)	M134 TCR alpha chain	polymer	209	22871.1	1		Mus musculus
5	E (E)	M134 TCR beta chain	polymer	242	27609.9	1		Mus musculus
6	F, G, H (A, B)	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	3	Chemie (NAG)
7	AA, BA, CA, I, J... (E, B, C, D)	GLYCEROL	non-polymer		92.1	20	Chemie (GOL)
8	N (D)	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
9	DA, EA, FA, GA, HA (A, B, C, D, E)	water	water		18.0	289	Chemie (HOH)

Sequence modifications

A: 1 - 181 (UniProt: P01903)

PDB	External Database	Details
Thr 182	-	expression tag
Ser 183	-	expression tag
Gly 184	-	expression tag
Asp 185	-	expression tag
Asp 186	-	expression tag
Asp 187	-	expression tag
Asp 188	-	expression tag
Lys 189	-	expression tag

B: 1 - 190 (UniProt: P13760)

PDB	External Database	Details
Thr 191	-	expression tag
Gly 192	-	expression tag
Gly 193	-	expression tag
Asp 194	-	expression tag
Asp 195	-	expression tag
Asp 196	-	expression tag
Asp 197	-	expression tag
Lys 198	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	96773.5
Non-Polymers*	Number of molecules	24
	Total formula weight	2528.5
All*	Total formula weight	99302.0

*Water molecules are not included.