3C1C

The effect of H3 K79 dimethylation and H4 K20 trimethylation on nucleosome and chromatin structure

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-like	polymer	135	15316.9	2	UniProt (P02302) Pfam (PF00125) UniProt (by SIFTS) (P84233) 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 type 1	polymer	129	14008.3	2	UniProt (P06897) Pfam (PF00125) Pfam (PF16211) In PDB	Xenopus laevis (clawed frog common platanna platanna)
4	D, H	Histone 2, H2bf	polymer	125	13808.0	2	UniProt (Q28D68) Pfam (PF00125) In PDB	Xenopus (Silurana) tropicalis (Western clawed frog)
5	I, J	Palindromic 146bp Human Alpha satellite DNA	polymer	146	45054.8	2
6		water	water		18.0	284	Chemie (HOH)

Sequence modifications

A, E: 401 - 535 (UniProt: P02302)

PDB	External Database	Details
Ala 421	Val 22	conflict
Arg 426	Lys 27	conflict
Ser 428	Cys 29	conflict
Ser 486	Arg 87	conflict
Ala 510	Cys 111	conflict

C, G: 801 - 929 (UniProt: P06897)

PDB	External Database	Details
Arg 899	Gly 100	conflict
Ser 923	Ala 124	conflict
Thr 926	Ala 127	conflict

Contents of the asymmetric unit

Polymers	Number of chains	10
	Total formula weight	198902.6
All*	Total formula weight	198902.6

*Water molecules are not included.