1I85

CRYSTAL STRUCTURE OF THE CTLA-4/B7-2 COMPLEX

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	T LYMPHOCYTE ACTIVATION ANTIGEN CD86	polymer	110	12849.6	2	UniProt (P42081) Pfam (PF07686) In PDB	Homo sapiens (human)	B7-2
2	C, D	CYTOTOXIC T-LYMPHOCYTE-ASSOCIATED PROTEIN 4	polymer	126	13510.3	2	UniProt (P16410) Pfam (PF07686) In PDB	Homo sapiens (human)	CTLA-4

Sequence modifications

A, B: 1 - 109 (UniProt: P42081)

PDB	External Database	Details
Met 0	-	INITIATING METHIONINE

C, D: 1 - 126 (UniProt: P16410)

PDB	External Database	Details
Met 56	Thr 91	see remark 999

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	52719.9
All*	Total formula weight	52719.9

*Water molecules are not included.