5B1L: The mouse nucleosome structure containing H3t

The mouse nucleosome structure containing H3t. Determined by X-ray diffraction at 2.35 Å resolution. Released 15 Feb 2017.

Method
X-ray diffraction
Resolution
2.35 Å
Organisms
Mus musculus, Homo sapiens
Chains
10
Atoms
12,164
Mol. weight
203.32 kDa
Ligands
MN
Released
15 Feb 2017

Explore 5B1L in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

5B1L contains 39 α-helices and 20 β-strands across 8 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chains A and E: 5 helices, 2 β-strands

ElementResiduesLengthSheet
α-helix41-422
α-helix45-5612
α-helix64-7815
β-strand83-8421
α-helix86-11328
β-strand118-11922
α-helix121-13111
Chain B: 4 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix26-283
α-helix31-4010
β-strand45-4622
α-helix50-7526
β-strand80-8121
α-helix83-9210
β-strand97-9823
Chain C: 7 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix12-143
α-helix17-215
α-helix27-3610
β-strand42-4324
α-helix47-7226
β-strand77-7825
α-helix80-889
α-helix91-966
β-strand101-10226
α-helix113-1153
Chains D and H: 4 helices, 2 β-strands
ElementResiduesLengthSheet
α-helix38-4811
β-strand53-5425
α-helix56-8328
β-strand88-8924
α-helix91-10111
α-helix104-12320
Chain F: 4 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix25-284
α-helix31-4010
β-strand45-4628
α-helix50-7526
β-strand80-8127
α-helix83-9210
β-strand97-9826
Chain G: 6 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix17-215
α-helix27-3610
β-strand42-4329
α-helix46-7227
β-strand77-78210
α-helix80-889
α-helix91-966
β-strand101-10223
α-helix113-1153

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Histone H3tA, Eprotein139Mus musculusP68433 (AlphaFold model)
Histone H4B, Fprotein106Mus musculusP62806 (AlphaFold model)
Histone H2A type 1C, Gprotein133Mus musculusC0HKE1 (AlphaFold model)
Histone H2B type 3-AD, Hprotein129Mus musculusQ9D2U9 (AlphaFold model)
DNA (146-mer)I, JDNA146Homo sapiens
Sequence of entity 1 (A, E), FASTA
>5B1L_1 Histone H3t (chains A, E)
GSHMARTKQTARKSTGGKAPRKQLATKVARKSAPATGGVKKPHRYHPGTVALREIRRYQK
STELLIRKLPFQRLVREIAQDFKTDLRFQSSAVMALQEACESYLVGLFEDTNLCAIHAKR
VTIMPKDIQLARRIRGERA
Sequence of entity 2 (B, F), FASTA
>5B1L_2 Histone H4 (chains B, F)
GSHMSGRGKGGKGLGKGGAKRHRKVLRDNIQGITKPAIRRLARRGGVKRISGLIYEETRG
VLKVFLENVIRDAVTYTEHAKRKTVTAMDVVYALKRQGRTLYGFGG
Sequence of entity 3 (C, G), FASTA
>5B1L_3 Histone H2A type 1 (chains C, G)
GSHMSGRGKQGGKARAKAKTRSSRAGLQFPVGRVHRLLRKGNYSERVGAGAPVYLAAVLE
YLTAEILELAGNAARDNKKTRIIPRHLQLAIRNDEELNKLLGRVTIAQGGVLPNIQAVLL
PKKTESHHKAKGK
Sequence of entity 4 (D, H), FASTA
>5B1L_4 Histone H2B type 3-A (chains D, H)
GSHMPEPSRSTPAPKKGSKKAITKAQKKDGKKRKRGRKESYSIYVYKVLKQVHPDTGISS
KAMGIMNSFVNDIFERIASEASRLAHYNKRSTITSREVQTAVRLLLPGELAKHAVSEGTK
AVTKYTSSK
Sequence of entity 5 (I, J), FASTA
>5B1L_5 DNA (146-MER) (chains I, J)
ATCAATATCCACCTGCAGATTCTACCAAAAGTGTATTTGGAAACTGCTCCATCAAAAGGC
ATGTTCAGCTGAATTCAGCTGAACATGCCTTTTGATGGAGCAGTTTCCAAATACACTTTT
GGTAGAATCTGCAGGTGGATATTGAT

Ligands and cofactors

IDNameFormulaCopies
MNManganese (II) ionMn13

Water and common crystallization additives (CL) are not listed.

Primary citation

Testis-Specific Histone Variant H3t Gene Is Essential for Entry into Spermatogenesis. Ueda, J., Harada, A., Urahama, T. et al. Cell Rep (2017) 18:593-600. DOI 10.1016/j.celrep.2016.12.065 · PubMed

Other PDB entries of the same protein (UniProt P68433 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

About this viewer

MolViewer shows 5B1L directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.