4XR8

Crystal structure of the HPV16 E6/E6AP/p53 ternary complex at 2.25 A resolution

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Maltose-binding periplasmic protein, ubiquitin ligase E6AP	polymer	383	41803.3	2	UniProt (P0AEX9) Pfam (PF01547) UniProt (by SIFTS) (Q05086) In PDB	Escherichia coli	MBP,MMBP,Maltodextrin-binding protein,MBP,MMBP,Maltodextrin-binding protein
2	C, D	Cellular tumor antigen p53	polymer	199	22448.5	2	UniProt (P04637) Pfam (PF00870) In PDB	Homo sapiens (Human)	Antigen NY-CO-13,Phosphoprotein p53,Tumor suppressor p53
3	F, H	Protein E6	polymer	151	18301.1	2	UniProt (P03126) Pfam (PF00518) In PDB	Human papillomavirus type 16
4	E, G	alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	branched		342.3	2	In PDB BIRD (PRD_900001) GlyTouCan (G07411ON)		alpha-maltose
5	A, B, D, F	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	4	Chemie (PEG)
6	C, D, F, H	ZINC ION	non-polymer		65.4	6	Chemie (ZN)
7	F	1,2-ETHANEDIOL	non-polymer		62.1	1	Chemie (EDO)
8		water	water		18.0	354	Chemie (HOH)

Sequence modifications

A, B: 2 - 368 (UniProt: P0AEX9)

PDB	External Database	Details
Met 1	-	initiating methionine
Ala 83	Asp 108	engineered mutation
Ala 84	Lys 109	engineered mutation
Ala 240	Lys 265	engineered mutation
Ala 360	Glu 385	engineered mutation
Ala 363	Lys 388	engineered mutation
Ala 364	Asp 389	engineered mutation
Asn 368	Arg 393	linker
Ala 369	-	linker
Ala 370	-	linker
Ala 371	-	linker

A, B: 372 - 383 (PDB: 4XR8)
F, H: 1 - 151 (UniProt: P03126)

PDB	External Database	Details
Ser 80	Cys 87	engineered mutation
Ser 97	Cys 104	engineered mutation
Ser 111	Cys 118	engineered mutation
Ser 140	Cys 147	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	165105.8
Branched	Number of molecules	2
	Total formula weight	684.6
Non-Polymers*	Number of molecules	11
	Total formula weight	879.0
All*	Total formula weight	166669.4

*Water molecules are not included.