4awl

From Proteopedia

(Difference between revisions)

Revision as of 21:46, 5 August 2016

The NF-Y transcription factor is structurally and functionally a sequence specific histone

Structural highlights

4awl is a 5 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1n1j
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[NFYA_HUMAN] Component of the sequence-specific heterotrimeric transcription factor (NF-Y) which specifically recognizes a 5'-CCAAT-3' box motif found in the promoters of its target genes. NF-Y can function as both an activator and a repressor, depending on its interacting cofactors. NF-YA positively regulates the transcription of the core clock component ARNTL/BMAL1.^[1] [NFYC_HUMAN] Stimulates the transcription of various genes by recognizing and binding to a CCAAT motif in promoters, for example in type 1 collagen, albumin and beta-actin genes. [NFYB_HUMAN] Stimulates the transcription of various genes by recognizing and binding to a CCAAT motif in promoters, for example in type 1 collagen, albumin and beta-actin genes.

Publication Abstract from PubMed

The sequence-specific transcription factor NF-Y binds the CCAAT box, one of the sequence elements most frequently found in eukaryotic promoters. NF-Y is composed of the NF-YA and NF-YB/NF-YC subunits, the latter two hosting histone-fold domains (HFDs). The crystal structure of NF-Y bound to a 25 bp CCAAT oligonucleotide shows that the HFD dimer binds to the DNA sugar-phosphate backbone, mimicking the nucleosome H2A/H2B-DNA assembly. NF-YA both binds to NF-YB/NF-YC and inserts an alpha helix deeply into the DNA minor groove, providing sequence-specific contacts to the CCAAT box. Structural considerations and mutational data indicate that NF-YB ubiquitination at Lys138 precedes and is equivalent to H2B Lys120 monoubiquitination, important in transcriptional activation. Thus, NF-Y is a sequence-specific transcription factor with nucleosome-like properties of nonspecific DNA binding and helps establish permissive chromatin modifications at CCAAT promoters. Our findings suggest that other HFD-containing proteins may function in similar ways.

Sequence-Specific Transcription Factor NF-Y Displays Histone-like DNA Binding and H2B-like Ubiquitination.,Nardini M, Gnesutta N, Donati G, Gatta R, Forni C, Fossati A, Vonrhein C, Moras D, Romier C, Bolognesi M, Mantovani R Cell. 2013 Jan 17;152(1-2):132-43. doi: 10.1016/j.cell.2012.11.047. PMID:23332751^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Kawata H, Yamada K, Shou Z, Mizutani T, Yazawa T, Yoshino M, Sekiguchi T, Kajitani T, Miyamoto K. Zinc-fingers and homeoboxes (ZHX) 2, a novel member of the ZHX family, functions as a transcriptional repressor. Biochem J. 2003 Aug 1;373(Pt 3):747-57. PMID:12741956 doi:10.1042/BJ20030171
↑ Nardini M, Gnesutta N, Donati G, Gatta R, Forni C, Fossati A, Vonrhein C, Moras D, Romier C, Bolognesi M, Mantovani R. Sequence-Specific Transcription Factor NF-Y Displays Histone-like DNA Binding and H2B-like Ubiquitination. Cell. 2013 Jan 17;152(1-2):132-43. doi: 10.1016/j.cell.2012.11.047. PMID:23332751 doi:http://dx.doi.org/10.1016/j.cell.2012.11.047

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4awl"

@@ Line 1: / Line 1: @@
 ==The NF-Y transcription factor is structurally and functionally a sequence specific histone==
 <StructureSection load='4awl' size='340' side='right' caption='[[4awl]], [[Resolution|resolution]] 3.08&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4awl]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4AWL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4AWL FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4awl]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4AWL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4AWL FirstGlance]. <br>
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1n1j|1n1j]]</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4awl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4awl OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4awl RCSB], [http://www.ebi.ac.uk/pdbsum/4awl PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4awl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4awl OCA], [http://pdbe.org/4awl PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4awl RCSB], [http://www.ebi.ac.uk/pdbsum/4awl PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4awl ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/NFYC_HUMAN NFYC_HUMAN]] Stimulates the transcription of various genes by recognizing and binding to a CCAAT motif in promoters, for example in type 1 collagen, albumin and beta-actin genes. [[http://www.uniprot.org/uniprot/NFYB_HUMAN NFYB_HUMAN]] Stimulates the transcription of various genes by recognizing and binding to a CCAAT motif in promoters, for example in type 1 collagen, albumin and beta-actin genes.
+[[http://www.uniprot.org/uniprot/NFYA_HUMAN NFYA_HUMAN]] Component of the sequence-specific heterotrimeric transcription factor (NF-Y) which specifically recognizes a 5'-CCAAT-3' box motif found in the promoters of its target genes. NF-Y can function as both an activator and a repressor, depending on its interacting cofactors. NF-YA positively regulates the transcription of the core clock component ARNTL/BMAL1.<ref>PMID:12741956</ref>  [[http://www.uniprot.org/uniprot/NFYC_HUMAN NFYC_HUMAN]] Stimulates the transcription of various genes by recognizing and binding to a CCAAT motif in promoters, for example in type 1 collagen, albumin and beta-actin genes. [[http://www.uniprot.org/uniprot/NFYB_HUMAN NFYB_HUMAN]] Stimulates the transcription of various genes by recognizing and binding to a CCAAT motif in promoters, for example in type 1 collagen, albumin and beta-actin genes.
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 16: / Line 17: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4awl" style="background-color:#fffaf0;"></div>
 ==See Also==
 *[[NF-Y Transcription Factor|NF-Y Transcription Factor]]
+*[[Nuclear transcription factor Y|Nuclear transcription factor Y]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Homo sapiens]]
+[[Category: Human]]
 [[Category: Bolognesi, M]]
 [[Category: Donati, G]]

4awl

From Proteopedia

Revision as of 21:46, 5 August 2016

The NF-Y transcription factor is structurally and functionally a sequence specific histone

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox