7EPZ

Overall structure of Erastin-bound xCT-4F2hc 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)	4F2 cell-surface antigen heavy chain	polymer	647	70160.8	1	UniProt (J3KPF3) Pfam (PF16028) Pfam (PF00128) UniProt (by SIFTS) (P08195)	Homo sapiens (human)	4F2hc, Solute carrier family 3 (Activators of dibasic and neutral amino acid transport),member 2,isoform CRA_a
2	B (B)	Cystine/glutamate transporter	polymer	521	57609.8	1	UniProt (Q9UPY5) Pfam (PF13520)	Homo sapiens (human)	Amino acid transport system xc-,Calcium channel blocker resistance protein CCBR1,Solute carrier family 7 member 11,xCT
3	C, D, E, F (C, D, E, F)	2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		424.4	4	In PDB GlyTouCan (G42666HT)
4	G (B)	2-[(1S)-1-[4-[2-(4-chloranylphenoxy)ethanoyl]piperazin-1-yl]ethyl]-3-(2-ethoxyphenyl)quinazolin-4-one	non-polymer		547.0	1	Chemie (J9O)
5	H, I (B)	1,2-DISTEAROYL-SN-GLYCERO-3-PHOSPHATE	non-polymer		704.0	2	Chemie (PX8)

Sequence modifications

A: 2 - 631 (UniProt: J3KPF3)

PDB	External Database	Details
Met -13	-	initiating methionine
Ala -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
Ser -1	-	expression tag
Gly 0	-	expression tag
Arg 1	-	expression tag
Leu 632	-	expression tag
Glu 633	-	expression tag

B: 2 - 501 (UniProt: Q9UPY5)

PDB	External Database	Details
Met -19	-	initiating methionine
Ala -18	-	expression tag
Asp -17	-	expression tag
Tyr -16	-	expression tag
Lys -15	-	expression tag
Asp -14	-	expression tag
Asp -13	-	expression tag
Asp -12	-	expression tag
Asp -11	-	expression tag
Lys -10	-	expression tag
Ser -9	-	expression tag
Gly -8	-	expression tag
Pro -7	-	expression tag
Asp -6	-	expression tag
Glu -5	-	expression tag
Val -4	-	expression tag
Asp -3	-	expression tag
Ala -2	-	expression tag
Ser -1	-	expression tag
Gly 0	-	expression tag
Arg 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	127770.6
Branched	Number of molecules	4
	Total formula weight	1697.6
Non-Polymers*	Number of molecules	3
	Total formula weight	1955.0
All*	Total formula weight	131423.2

*Water molecules are not included.