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FEBS Lett. 2002 Feb 20;513(1):58-66.

The FHA domain.

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Samuel Lumenfeld Research Institute, Mount Sinai Hospital, Toronto, ON, Canada M5G 1 X5.


The forkhead-associated (FHA) domain is a small protein module recently shown to recognize phosphothreonine epitopes on proteins. It is present in a diverse range of proteins in eukaryotic cells, such as kinases, phosphatases, kinesins, transcription factors, RNA-binding proteins, and metabolic enzymes. It is also found in a number of bacterial proteins. This suggests that FHA domain-mediated phospho-dependent assembly of protein complexes is an ancient and widespread regulatory mechanism.

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