3KXB

Structural characterization of H3K56Q nucleosomes and nucleosomal arrays

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, E	Histone H3.2	polymer	135	15303.9	2	UniProt (P84233) Pfam (PF00125) In PDB	Xenopus laevis (clawed frog common platanna platanna)
2	B, F	Histone H4	polymer	102	11263.2	2	UniProt (P62799) Pfam (PF15511) In PDB	Xenopus laevis (clawed frog common platanna platanna)
3	C, G	Histone H2A	polymer	129	13978.2	2	UniProt (Q6AZJ8) Pfam (PF00125) Pfam (PF16211) In PDB	Xenopus laevis (clawed frog common platanna platanna)
4	D, H	Histone H2B 1.1	polymer	122	13524.8	2	UniProt (P02281) Pfam (PF00125) In PDB	Xenopus laevis (clawed frog common platanna platanna)	H2B1.1
5	I, J	PALINDROMIC 146 BP DNA REPEAT 8/9 FROM HUMAN X-CHROMOSOME ALPHA SATELLITE DNA	polymer	146	45054.8	2
6		water	water		18.0	115	Chemie (HOH)

Sequence modifications

A, E: 1 - 135 (UniProt: P84233)

PDB	External Database	Details
Glu 56	Lys 57	engineered mutation
Ala 102	Gly 103	engineered mutation

D, H: 1 - 122 (UniProt: P02281)

PDB	External Database	Details
Thr 29	Ser 33	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	10
	Total formula weight	198249.9
All*	Total formula weight	198249.9

*Water molecules are not included.