8spu
From Proteopedia
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== Function == | == Function == | ||
[https://www.uniprot.org/uniprot/A0A376KDN7_ECOLX A0A376KDN7_ECOLX] Part of the ABC transporter complex MalEFGK involved in maltose/maltodextrin import. Binds maltose and higher maltodextrins.[RuleBase:RU365005][https://www.uniprot.org/uniprot/PO5F1_HUMAN PO5F1_HUMAN] Transcription factor that binds to the octamer motif (5'-ATTTGCAT-3'). Forms a trimeric complex with SOX2 or SOX15 on DNA and controls the expression of a number of genes involved in embryonic development such as YES1, FGF4, UTF1 and ZFP206. Critical for early embryogenesis and for embryonic stem cell pluripotency.<ref>PMID:18035408</ref> | [https://www.uniprot.org/uniprot/A0A376KDN7_ECOLX A0A376KDN7_ECOLX] Part of the ABC transporter complex MalEFGK involved in maltose/maltodextrin import. Binds maltose and higher maltodextrins.[RuleBase:RU365005][https://www.uniprot.org/uniprot/PO5F1_HUMAN PO5F1_HUMAN] Transcription factor that binds to the octamer motif (5'-ATTTGCAT-3'). Forms a trimeric complex with SOX2 or SOX15 on DNA and controls the expression of a number of genes involved in embryonic development such as YES1, FGF4, UTF1 and ZFP206. Critical for early embryogenesis and for embryonic stem cell pluripotency.<ref>PMID:18035408</ref> | ||
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| - | == Publication Abstract from PubMed == | ||
| - | Pioneer transcription factors are essential for cell fate changes by targeting closed chromatin. OCT4 is a crucial pioneer factor that can induce cell reprogramming. However, the structural basis of how pioneer factors recognize the in vivo nucleosomal DNA targets is unknown. Here, we determine the high-resolution structures of the nucleosome containing human LIN28B DNA and its complexes with the OCT4 DNA binding region. Three OCT4s bind the pre-positioned nucleosome by recognizing non-canonical DNA sequences. Two use their POUS domains while the other uses the POUS-loop-POUHD region; POUHD serves as a wedge to unwrap approximately 25 base pair DNA. Our analysis of previous genomic data and determination of the ESRRB-nucleosome-OCT4 structure confirmed the generality of these structural features. Moreover, biochemical studies suggest that multiple OCT4s cooperatively open the H1-condensed nucleosome array containing the LIN28B nucleosome. Thus, our study suggests a mechanism of how OCT4 can target the nucleosome and open closed chromatin. | ||
| - | + | ==See Also== | |
| - | + | *[[Monoclonal Antibodies 3D structures|Monoclonal Antibodies 3D structures]] | |
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== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 08:23, 7 February 2024
Structure of ESRRB nucleosome bound OCT4 at site c
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