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'''PHF21A''' is a gene that encodes the PHD finger protein 21A in humans. This protein is a part of the [[PHD finger proteins]] family, which are known for their involvement in [[chromatin]] remodeling. PHF21A is also known as BHC80, a component of the [[BHC complex]] that plays a crucial role in [[neural development]] and [[neuronal differentiation]].

== Function ==

The PHF21A gene provides instructions for making a protein that is involved in the regulation of [[gene expression]], the process by which information from a gene is used in the synthesis of a functional gene product. This protein is a part of a complex that modifies [[histones]], the structural proteins that attach (bind) to [[DNA]] and give chromosomes their shape. By adding or removing chemical groups to histones, this complex can control the activity of certain genes.

== Clinical Significance ==

Mutations in the PHF21A gene have been associated with [[Potocki-Shaffer syndrome]], a rare genetic disorder characterized by multiple [[exostoses]], [[parietal foramina]], [[intellectual disability]], and [[craniofacial abnormalities]]. The PHF21A gene mutations that cause Potocki-Shaffer syndrome lead to the production of an abnormally short, nonfunctional version of the PHD finger protein 21A. This disrupts the normal regulation of gene expression, which likely contributes to the varied signs and symptoms of Potocki-Shaffer syndrome.

== Research ==

Research is ongoing to understand the full spectrum of PHF21A gene functions and its role in human diseases. Studies have suggested that PHF21A may also be involved in the regulation of [[circadian rhythms]], and its dysregulation may contribute to sleep disorders.

== See Also ==
* [[PHD finger proteins]]
* [[Potocki-Shaffer syndrome]]
* [[Gene expression]]
* [[Histones]]
* [[DNA]]

== References ==
<references />

[[Category:Genes]]
[[Category:Human proteins]]
[[Category:Genetics]]
[[Category:Medicine]]

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PHF21A - Revision history

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