9GMK: SIRT7:H3K18DTU nucleosome complex

SIRT7:H3K18DTU nucleosome complex. Determined by electron microscopy at 3.5 Å resolution. Released 29 Jan 2025.

Method
Electron microscopy
Resolution
3.5 Å
Organism
Homo sapiens
Chains
11
Atoms
14,643
Mol. weight
245.89 kDa
Released
29 Jan 2025

Explore 9GMK in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

9GMK contains 55 α-helices and 27 β-strands across 9 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: 5 helices, 2 β-strands

ElementResiduesLengthSheet
α-helix41-422
α-helix45-5612
α-helix64-7512
β-strand8311
α-helix86-11328
β-strand118-11922
α-helix121-13111
Chain B: 4 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix26-283
α-helix31-4111
β-strand45-4622
α-helix51-7525
β-strand8011
α-helix83-9210
β-strand9713
Chain C: 5 helices, 2 β-strands
ElementResiduesLengthSheet
α-helix17-215
α-helix28-358
α-helix47-7226
β-strand7714
α-helix80-8910
α-helix91-966
β-strand10115
Chain D: 4 helices, 1 β-strand
ElementResiduesLengthSheet
α-helix38-4811
β-strand5314
α-helix57-8327
α-helix91-10111
α-helix104-12320
Chain E: 5 helices, 1 β-strand
ElementResiduesLengthSheet
α-helix41-422
α-helix45-5410
α-helix64-7512
β-strand8316
α-helix86-11328
α-helix121-13111
Chain F: 4 helices, 2 β-strands
ElementResiduesLengthSheet
α-helix26-283
α-helix31-4010
α-helix51-7525
β-strand8016
α-helix83-9210
β-strand9715
Chain G: 6 helices, 1 β-strand
ElementResiduesLengthSheet
α-helix17-215
α-helix28-358
α-helix47-7226
α-helix80-889
α-helix91-977
β-strand10113
α-helix113-1153
Chain H: 4 helices, 0 β-strands
ElementResiduesLengthSheet
α-helix38-4811
α-helix56-8328
α-helix91-10111
α-helix104-12320

1 more chain groups are not listed. Open the entry in the viewer and use the sequence panel to see them.

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Histone H3.2A, Eprotein136Homo sapiensQ71DI3 (AlphaFold model)
Histone H4B, Fprotein103Homo sapiensP62805 (AlphaFold model)
Histone H2A type 2-AC, Gprotein129Homo sapiensQ6FI13 (AlphaFold model)
Histone H2B type 1-JD, Hprotein126Homo sapiensP06899 (AlphaFold model)
NAD-dependent protein deacetylase sirtuin-7Kprotein401Homo sapiensQ9NRC8
DNA (148-mer)LDNA148Homo sapiens
DNA (148-mer)MDNA148Homo sapiens
Sequence of entity 1 (A, E), FASTA
>9GMK_1 Histone H3.2 (chains A, E)
MARTKQTARKSTGGKAPRKQLATKAARKSAPATGGVKKPHRYRPGTVCLREIRRYQKSTE
LLIRKLPFQRLVREIAQDFKTDLRFQSSAVMALQEASEAYLVGLFEDTNLAAIHAKRVTI
MPKDIQLARRIRGERA
Sequence of entity 2 (B, F), FASTA
>9GMK_2 Histone H4 (chains B, F)
MSGRGKGGKGLGKGGAKRHRKVLRDNIQGITKPAIRRLARRGGVKRISGLIYEETRGVLK
VFLENVIRDAVTYTEHAKRKTVTAMDVVYALKRQGRTLYGFGG
Sequence of entity 3 (C, G), FASTA
>9GMK_3 Histone H2A type 2-A (chains C, G)
SGRGKQGGKARAKAKSRSSRAGLQFPVGRVHRLLRKGNYAERVGAGAPVYMAAVLEYLTA
EILELAGNAARDNKKTRIIPRHLQLAIRNDEELNKLLGKVTIAQGGVLPNIQAVLLPKKT
ESHHKAKGK
Sequence of entity 4 (D, H), FASTA
>9GMK_4 Histone H2B type 1-J (chains D, H)
MPEPAKSAPAPKKGSKKAVTKAQKKDGKKRKRSRKESYSIYVYKVLKQVHPDTGISSKAM
GIMNSFVNDIFERIAGEASRLAHYNKRSTITSREIQTAVRLLLPGELAKHAVSEGTKAVT
KYTSAK
Sequence of entity 5 (K), FASTA
>9GMK_5 NAD-dependent protein deacetylase sirtuin-7 (chains K)
GMAAGGLSRSERKAAERVRRLREEQQRERLRQVSRILRKAAAERSAEEGRLLAESADLVT
ELQGRSRRREGLKRRQEEVCDDPEELRGKVRELASAVRNAKYLVVYTGAGISTAASIPDY
RGPNGVWTLLQKGRSVSAADLSEAEPTLTHMSITRLHEQKLVQHVVSQNCDGLHLRSGLP
RTAISELHGNMYIEVCTSCVPNREYVRVFDVTERTALHRHQTGRTCHKCGTQLRDTIVHF
GERGTLGQPLNWEAATEAASRADTILCLGSSLKVLKKYPRLWCMTKPPSRRPKLYIVNLQ
WTPKDDWAALKLHGKCDDVMRLLMAELGLEIPAYSRWQDPIFSLATPLRAGEEGSHSRKS
LCRSREEAPPGDRGAPLSSAPILGGWFGRGCTKRTKRKKVT
Sequence of entity 6 (L), FASTA
>9GMK_6 DNA (148-MER) (chains L)
AGAATCCCGGTGCCGAGGCCGCTCAATTGGTCGTAGACAGCTCTAGCACCGCTTAAACGC
ACGTACGCGCTGTCCCCCGCGTTTTAACCGCCAAGGGGATTACTCCCTAGTCTCCAGGCA
CGTGTCAGATATATACAATTTTTTTTTT
Sequence of entity 7 (M), FASTA
>9GMK_7 DNA (148-MER) (chains M)
AAAAAAAAAATTGTATATATCTGACACGTGCCTGGAGACTAGGGAGTAATCCCCTTGGCG
GTTAAAACGCGGGGGACAGCGCGTACGTGCGTTTAAGCGGTGCTAGAGCTGTCTACGACC
AATTGAGCGGCCTCGGCACCGGGATTCT

Primary citation

Structural basis of SIRT7 nucleosome engagement and substrate specificity. Moreno-Yruela, C., Ekundayo, B.E., Foteva, P.N. et al. Nat Commun (2025) 16:1328-1328. DOI 10.1038/s41467-025-56529-y · 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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