P21 (disambiguation)
p21 is a cyclin-dependent kinase inhibitor.
P21 or P-21 may also refer to:
Proteins
- p21/ras, part of the RAt Sarcoma family of proteins
- Transforming protein p21, encoded by the HRAS gene in humans
Vessels
- ARA King (P-21), a minelayer and patrol ship of the Argentine Navy
- HMS Oberon (P21), a submarine of the Royal Navy
- LÉ Emer (P21), a patrol vessel of the Irish Navy
- Maltese patrol boat P21, of the Armed Forces of Malta
Other uses
- Curtiss XP-21, an American experimental fighter aircraft
- P21 road (Ukraine)
- Papyrus 21, a biblical manuscript
- Yao language
- Partnership for 21st Century Skills; see 21st century skills
- Prophet 21, Distribution Software for businesses published by Epicor
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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