Transition nuclear protein

Transition nuclear proteins (TNPs) are proteinsthat are involved in the packaging of spermnuclearDNAduring spermiogenesis. They take the place of histonesassociated with the sperm DNA, and are subsequently themselves replaced by protamines.

See also

• chromatin
• histone
• protamine
• sperm
• spermatogenesis
• spermiogenesis

Reference

• Meistrich ML, Mohapatra B, Shirley CR, Zhao M. 2003. Role of transition nuclear proteins in spermiogenesis. Chromosoma 111:483-488.

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It uses material from the http://en.wikipedia.org/wiki/Transition+nuclear+protein Wikipedia article Transition nuclear protein.