7SG1

XPA5 TCR in complex with HLA-DQ2-alpha1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, F	HLA class II histocompatibility antigen, DQ alpha 1 chain	polymer	183	20683.1	2	UniProt (P01909) Pfam (PF00993) Pfam (PF07654) In PDB	Homo sapiens (Human)	DC-1 alpha chain,DC-alpha,HLA-DCA,MHC class II DQA1
2	B, G	MHC class II HLA-DQ-beta-1	polymer	202	23355.3	2	UniProt (O19712) Pfam (PF00969) Pfam (PF07654) UniProt (by SIFTS) (Q5Y7D3) In PDB	Homo sapiens (Human)
3	D, I	T-cell receptor, xpa5, alpha chain	polymer	203	22661.2	2		Homo sapiens (Human)
4	E, J	T-cell receptor, xpa5, beta chain	polymer	259	28748.0	2		Homo sapiens (Human)
5	C, H	DQ2-glia-alpha1a peptide	polymer	16	1673.8	2		Homo sapiens (Human)
6	A, F	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	2	Chemie (NAG)
7	A, F	1,2-ETHANEDIOL	non-polymer		62.1	3	Chemie (EDO)
8	A, E	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)

Sequence modifications

B, G: 1 - 192 (UniProt: O19712)

PDB	External Database	Details
Ile -9	-	expression tag
Glu -8	-	expression tag
Gly -7	-	expression tag
Arg -6	-	expression tag
Gly -5	-	expression tag
Gly -4	-	expression tag
Ser -3	-	expression tag
Gly -2	-	expression tag
Ala -1	-	expression tag
Ser 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	10
	Total formula weight	194242.8
Non-Polymers*	Number of molecules	7
	Total formula weight	708.8
All*	Total formula weight	194951.6

*Water molecules are not included.