User:Benjamin Elliott/Crystal Structure of the Bromodomain-PHD Finger Module of Human Transcriptional Co-Activator CBP in complex with Acetylated Histone 4 Peptide (H4K20ac)
From Proteopedia
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== Function == | == Function == | ||
| - | Bromodomains, in general, function as acetyl-lysine binding domains to regulate gene transcription in chromatin. This particular | + | Bromodomains (BrD), in general, function as acetyl-lysine binding domains to regulate gene transcription in chromatin. This particular BrD of human transcriptional co-activator CBP binds with relatively high specificity to Lys20-acetylated histone H4 (H4K20), though this preference is not well understood. The PHD finger is hypothesized to play a structural role, since the entire module functions as one unit. It has been experimentally demonstrated that the module binds most effectively to singly acetylated peptide chains, with affinity significantly reduced with more acetylations. |
== Disease == | == Disease == | ||
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Bromodomains have become a popular target for their role in human disease since they recognize an epigenetic tag. | Bromodomains have become a popular target for their role in human disease since they recognize an epigenetic tag. | ||
== Structural highlights == | == Structural highlights == | ||
| - | This protein is composed of two different domains -- the bromodomain (BrD) and the PHD finger. In this particular module for human CBP, the two come together to form such interactions that they function as a single structural unit.There are two <scene name='76/769329/Zinc_ions/1'>zinc ion coordination centers</scene> that serve as a stable base for an extended interface established between the PHD finger and the BrD. | + | This protein is composed of two different domains -- the bromodomain (BrD) and the PHD finger. In this particular module for human CBP, the two come together to form such interactions that they function as a single structural unit.There are two <scene name='76/769329/Zinc_ions/1'>zinc ion coordination centers</scene> that serve as a stable base for an extended interface established between the PHD finger and the BrD. The PHD finger itself has not shown to bind any specific peptide, whether in tandem or in its individual construct. |
This is a sample scene created with SAT to <scene name="/12/3456/Sample/1">color</scene> by Group, and another to make <scene name="/12/3456/Sample/2">a transparent representation</scene> of the protein. You can make your own scenes on SAT starting from scratch or loading and editing one of these sample scenes. | This is a sample scene created with SAT to <scene name="/12/3456/Sample/1">color</scene> by Group, and another to make <scene name="/12/3456/Sample/2">a transparent representation</scene> of the protein. You can make your own scenes on SAT starting from scratch or loading and editing one of these sample scenes. | ||
Revision as of 23:18, 4 October 2017
Your Heading Here (maybe something like 'Structure')
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References
- ↑ Hanson, R. M., Prilusky, J., Renjian, Z., Nakane, T. and Sussman, J. L. (2013), JSmol and the Next-Generation Web-Based Representation of 3D Molecular Structure as Applied to Proteopedia. Isr. J. Chem., 53:207-216. doi:http://dx.doi.org/10.1002/ijch.201300024
- ↑ Herraez A. Biomolecules in the computer: Jmol to the rescue. Biochem Mol Biol Educ. 2006 Jul;34(4):255-61. doi: 10.1002/bmb.2006.494034042644. PMID:21638687 doi:10.1002/bmb.2006.494034042644
