5BO0: Histone H3.2

Crystal structure of Human MCM2 HBD and ASF1b chaperoning a histone H3.2-H4 dimer. Determined by X-ray diffraction at 2.91 Å resolution. Released 17 Jun 2015.

Method
X-ray diffraction
Resolution
2.91 Å
Organism
Homo sapiens
Chains
4
Atoms
2,970
Mol. weight
46.36 kDa
Released
17 Jun 2015

Explore 5BO0 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

5BO0 contains 16 α-helices and 19 β-strands across 4 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.

Chain A: 3 helices, 2 β-strands

ElementResiduesLengthSheet
α-helix64-7815
β-strand83-8421
α-helix86-11227
β-strand11912
α-helix121-13010
Chain B: 4 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix21-233
α-helix31-4010
β-strand45-4622
α-helix50-7526
β-strand80-8121
α-helix83-919
β-strand95-9733
Chain C: 2 helices, 2 β-strands
ElementResiduesLengthSheet
β-strand70-7122
α-helix77-815
β-strand9511
α-helix108-12013
Chain D: 7 helices, 12 β-strands
ElementResiduesLengthSheet
β-strand4-1294
β-strand16-1723
α-helix211
β-strand22-3094
β-strand3415
β-strand38-4473
α-helix51-533
β-strand55-6283
β-strand6515
β-strand68-7694
α-helix77-793
α-helix81-833
α-helix86-894
β-strand91-101113
β-strand104-117143
α-helix120-1245
α-helix132-1343
β-strand135-13953
β-strand145-14843

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Histone H3.2Aprotein80Homo sapiensQ71DI3 (AlphaFold model)
Histone H4Bprotein102Homo sapiensP62805 (AlphaFold model)
DNA replication licensing factor MCM2Cprotein70Homo sapiensP49736 (AlphaFold model)
Histone chaperone ASF1BDprotein158Homo sapiensQ9NVP2 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>5BO0_1 Histone H3.2 (chains A)
KSTELLIRKLPFQRLVREIAQDFKTDLRFQSSAVMALQEASEAYLVGLFEDTNLCAIHAK
RVTIMPKDIQLARRIRGERA
Sequence of entity 2 (B), FASTA
>5BO0_2 Histone H4 (chains B)
SGRGKGGKGLGKGGAKRHRKVLRDNIQGITKPAIRRLARRGGVKRISGLIYEETRGVLKV
FLENVIRDAVTYTEHAKRKTVTAMDVVYALKRQGRTLYGFGG
Sequence of entity 3 (C), FASTA
>5BO0_3 DNA replication licensing factor MCM2 (chains C)
GPLEEEEDGEELIGDGMERDYRAIPELDAYEAEGLALDDEDVEELTASQREAAERAMRQR
DREAGRGLGR
Sequence of entity 4 (D), FASTA
>5BO0_4 Histone chaperone ASF1B (chains D)
MAKVSVLNVAVLENPSPFHSPFRFEISFECSEALADDLEWKIIYVGSAESEEFDQILDSV
LVGPVPAGRHMFVFQADAPNPSLIPETDAVGVTVVLITCTYHGQEFIRVGYYVNNEYLNP
ELRENPPMKPDFSQLQRNILASNPRVTRFHINWDNNMD

Primary citation

A unique binding mode enables MCM2 to chaperone histones H3-H4 at replication forks. Huang, H., Strmme, C.B., Saredi, G. et al. Nat Struct Mol Biol (2015) 22:618-626. DOI 10.1038/nsmb.3055 · PubMed

Other PDB entries of the same protein (UniProt Q71DI3 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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