4C56

X-ray structure of the complex between staphylococcal enterotoxin B, T cell receptor and major histocompatibility complex class II

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, G	T CELL RECEPTOR ALPHA CHAIN	polymer	206	22812.1	2	Pfam (PF09291) UniProt (by SIFTS) (P01848) In PDB	HOMO SAPIENS (HUMAN)
2	B, H	T CELL RECEPTOR BETA CHAIN	polymer	244	27770.8	2	Pfam (PF07654) UniProt (by SIFTS) (A0A5B9) In PDB	HOMO SAPIENS (HUMAN)
3	C, I	ENTEROTOXIN B	polymer	238	28282.0	2	UniProt (Q5MAA8) Pfam (PF01123) Pfam (PF02876) UniProt (by SIFTS) (P01552) In PDB	STAPHYLOCOCCUS AUREUS
4	D, J	HLA CLASS II HISTOCOMPATIBILITY ANTIGEN, DR ALPHA CHAIN	polymer	182	21155.9	2	UniProt (P01903) Pfam (PF00993) Pfam (PF07654) In PDB	HOMO SAPIENS (HUMAN)	MAJOR HISTOCOMPATIBILITY COMPLEX CLASS II ALPHA CHAIN
5	E, K	MHC CLASS II ANTIGEN	polymer	190	22080.7	2	UniProt (A9JJF6) Pfam (PF00969) Pfam (PF07654) UniProt (by SIFTS) (P01911) In PDB	HOMO SAPIENS (HUMAN)	MAJOR HISTOCOMPATIBILITY COMPLEX CLASS II BETA CHAIN
6	F, L	HEMAGGLUTININ	polymer	13	1506.8	2	UniProt (Q03909) UniProt (by SIFTS) (P03437) In PDB	INFLUENZA A VIRUS
7	E	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
8		water	water		18.0	26	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	12
	Total formula weight	247216.5
Non-Polymers*	Number of molecules	1
	Total formula weight	92.1
All*	Total formula weight	247308.5

*Water molecules are not included.