3LEL

Structural Insight into the Sequence-Dependence of Nucleosome Positioning

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, E, K, O (A, E, K, O)	Histone H3.2	polymer	136	15435.1	4	UniProt (P84233) Pfam (PF00125)	Xenopus laevis (African clawed frog)	Histone 3.2
2	B, F, L, P (B, F, L, P)	Histone H4	polymer	102	11263.2	4	UniProt (P62799) Pfam (PF15511)	Xenopus laevis (African clawed frog)	Histone 4
3	C, G, M, Q (C, G, M, Q)	Histone H2A	polymer	128	13907.2	4	UniProt (Q6AZJ8) Pfam (PF00125) Pfam (PF16211)	Xenopus laevis (African clawed frog)	Histone 2A
4	D, H, N, R (D, H, N, R)	Histone H2B 1.1	polymer	125	13848.1	4	UniProt (P02281) Pfam (PF00125)	Xenopus laevis (African clawed frog)	H2B1.1, Histone 2B
5	I, S (I, S)	147-MER DNA	polymer	147	45363.1	2
6	J, T (J, T)	147-MER DNA	polymer	147	45354.1	2
7	AA, AB, BA, BB, CA... (I, T, J, N, O...)	MANGANESE (II) ION	non-polymer		54.9	34	Chemie (MN)

Sequence modifications

A, E, K, O: 0 - 135 (UniProt: P84233)

PDB	External Database	Details
Ala 102	Gly 103	SEE REMARK 999

C, G, M, Q: 1 - 128 (UniProt: Q6AZJ8)

PDB	External Database	Details
-	Ala 127	deletion

D, H, N, R: -2 - 122 (UniProt: P02281)

PDB	External Database	Details
Thr 29	Ser 33	SEE REMARK 999

Contents of the asymmetric unit

Polymers	Number of chains	20
	Total formula weight	399248.9
Non-Polymers*	Number of molecules	34
	Total formula weight	1867.9
All*	Total formula weight	401116.8

*Water molecules are not included.