7U0I: LIN28b nucleosome bound 2 OCT4

Structure of LIN28b nucleosome bound 2 OCT4. Determined by electron microscopy at 2.6 Å resolution. Released 28 Jun 2023.

Method
Electron microscopy
Resolution
2.6 Å
Organisms
Homo sapiens, Escherichia coli K-12, Mus musculus
Chains
14
Atoms
16,888
Mol. weight
390.19 kDa
Released
28 Jun 2023

Explore 7U0I in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

7U0I contains 54 α-helices and 72 β-strands across 12 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-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-helix83-919
β-strand96-9833
Chain C: 5 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix17-204
α-helix27-3610
β-strand42-4324
α-helix47-7125
β-strand77-7825
α-helix80-889
α-helix91-966
β-strand100-10236
Chain D: 4 helices, 2 β-strands
ElementResiduesLengthSheet
α-helix39-4911
β-strand54-5525
α-helix57-8428
β-strand89-9024
α-helix92-10211
α-helix105-12218
Chain E: 5 helices, 2 β-strands
ElementResiduesLengthSheet
α-helix41-422
α-helix45-5410
α-helix64-7512
β-strand83-8427
α-helix86-11328
β-strand118-11928
α-helix121-13111
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-strand96-9836
Chain G: 6 helices, 3 β-strands
ElementResiduesLengthSheet
α-helix17-215
α-helix27-3610
β-strand42-4329
α-helix47-7226
β-strand77-78210
α-helix80-889
α-helix91-966
β-strand100-10233
α-helix113-1153
Chain H: 5 helices, 2 β-strands
ElementResiduesLengthSheet
α-helix32-343
α-helix39-4911
β-strand54-55210
α-helix57-8428
β-strand89-9029
α-helix92-10211
α-helix105-12420

4 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 H3.1A, Eprotein136Homo sapiensP68431 (AlphaFold model)
Histone H4B, Fprotein103Homo sapiensP62805 (AlphaFold model)
Histone H2A type 2-CC, Gprotein129Homo sapiensQ16777 (AlphaFold model)
Histone H2B type 2-ED, Hprotein126Homo sapiensQ16778 (AlphaFold model)
DNA (162-mer)IDNA162Homo sapiens
DNA (162-mer)JDNA162Homo sapiens
Maltodextrin-binding protein,POU domain, class 5, transcription factor 1L, Mprotein550Escherichia coli K-12, Homo sapiensP0AEX9, Q01860
Single-chain variable fragmentK, Nprotein265Mus musculus
Sequence of entity 1 (A, E), FASTA
>7U0I_1 Histone H3.1 (chains A, E)
MARTKQTARKSTGGKAPRKQLATKAARKSAPATGGVKKPHRYRPGTVALREIRRYQKSTE
LLIRKLPFQRLVREIAQDFKTDLRFQSSAVMALQEACEAYLVGLFEDTNLCAIHAKRVTI
MPKDIQLARRIRGERA
Sequence of entity 2 (B, F), FASTA
>7U0I_2 Histone H4 (chains B, F)
MSGRGKGGKGLGKGGAKRHRKVLRDNIQGITKPAIRRLARRGGVKRISGLIYEETRGVLK
VFLENVIRDAVTYTEHAKRKTVTAMDVVYALKRQGRTLYGFGG
Sequence of entity 3 (C, G), FASTA
>7U0I_3 Histone H2A type 2-C (chains C, G)
MSGRGKQGGKARAKAKSRSSRAGLQFPVGRVHRLLRKGNYAERVGAGAPVYMAAVLEYLT
AEILELAGNAARDNKKTRIIPRHLQLAIRNDEELNKLLGKVTIAQGGVLPNIQAVLLPKK
TESHKAKSK
Sequence of entity 4 (D, H), FASTA
>7U0I_4 Histone H2B type 2-E (chains D, H)
MPEPAKSAPAPKKGSKKAVTKAQKKDGKKRKRSRKESYSIYVYKVLKQVHPDTGISSKAM
GIMNSFVNDIFERIAGEASRLAHYNKRSTITSREIQTAVRLLLPGELAKHAVSEGTKAVT
KYTSSK
Sequence of entity 5 (I), FASTA
>7U0I_5 DNA (162-MER) (chains I)
AGTGGTATTAACATATCCTCAGTGGTGAGTATTAACATGGAACTTACTCCAACAATACAG
ATGCTGAATAAATGTAGTCTAAGTGAAGGAAGAAGGAAAGGTGGGAGCTGCCATCACTCA
GAATTGTCCAGCAGGGATTGTGCAAGCTTGTGAATAAAGACA
Sequence of entity 6 (J), FASTA
>7U0I_6 DNA (162-MER) (chains J)
TGTCTTTATTCACAAGCTTGCACAATCCCTGCTGGACAATTCTGAGTGATGGCAGCTCCC
ACCTTTCCTTCTTCCTTCACTTAGACTACATTTATTCAGCATCTGTATTGTTGGAGTAAG
TTCCATGTTAATACTCACCACTGAGGATATGTTAATACCACT
Sequence of entity 7 (L, M), FASTA
>7U0I_7 Maltodextrin-binding protein,POU domain, class 5, transcription factor 1 (chains L, M)
MKEAKIEEGKLVIWINGDKGYNGLAEVGKKFEKDTGIKVTVEHPDKLEEKFPQVAATGDG
PDIIFWAHDRFGGYAQSGLLAEITPDKAFQDKLYPFTWDAVRYNGKLIAYPIAVEALSLI
YNKDLLPNPPKTWEEIPALDKELKAKGKSALMFNLQEPYFTWPLIAADGGYAFKYENGKY
DIKDVGVDNAGAKAGLTFLVDLIKNKHMNADTDYSIAEAAFNKGETAMTINGPWAWSNID
TSKVNYGVTVLPXFKGQPSKPFVGVLSAGINAASPNKELAKEFLENYLLTDEGLEAVNKD
KPLGAVALKSYEEELAKDPRIAATMENAQKGEIMPNIPQMSAFWYAVRTAVINAASGRQT
VDAALAAAQTNAGSENLYFQGSVDSAAASDIKALQKELEQFAKLLKQKRITLGYTQADVG
LTLGVLFGKVFSQTTICRFEALQLSFKNMCKLRPLLQKWVEEADNNENLQEICKAETLVQ
ARKRKRTSIENRVRGNLENLFLQCPKPTLQQISHIAQQLGLEKDVVRVWFCNRRQKGKRS
SSEFHHHHHH
Sequence of entity 8 (K, N), FASTA
>7U0I_8 Single-chain variable fragment (chains K, N)
MKSSHHHHHHENLYFQSNAMEVQLQQSGPELVEPGTSVKMPCKASGYTFTSYTIQWVKQT
PRQGLEWIGYIYPYNAGTKYNEKFKGKATLTSDKSSSTVYMELSSLTSEDSAVYYCARKS
SRLRSTLDYWGQGTSVTVSSGGGGSGGGGSGGGGSMDIKMTQSPSSMHASLGERVTITCK
ASQDIRSYLSWYQQKPWKSPKTLIYYATSLADGVPSRFSGSGSGQDFSLTINNLESDDTA
TYYCLQHGESPYTFGSGTKLEIKRA

Primary citation

Structural mechanism of LIN28B nucleosome targeting by OCT4. Guan, R., Lian, T., Zhou, B.R. et al. Mol Cell (2023) 83:1970-1982.e6. DOI 10.1016/j.molcel.2023.05.030 · PubMed

Other PDB entries of the same protein (UniProt P68431 (AlphaFold model), which also has an AlphaFold model), best resolution first:

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