4E42

Structural basis for the recognition of mutant self by a tumor-specific, MHC class II-restricted T cell receptor G4

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (A, C)	T cell receptor G4 alpha chain	polymer	203	22671.0	2		Homo sapiens
2	B, D (B, D)	T cell receptor G4 beta chain	polymer	239	27154.2	2		Homo sapiens
3	E, G, H, I, J... (A, B, D)	CHLORIDE ION	non-polymer		35.5	9	Chemie (CL)
4	F, L (B, D)	NITRATE ION	non-polymer		62.0	2	Chemie (NO3)
5	K, Q (B, D)	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
6	R, S, T, U (A, B, C, D)	water	water		18.0	205	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	99650.2
Non-Polymers*	Number of molecules	13
	Total formula weight	489.1
All*	Total formula weight	100139.3

*Water molecules are not included.