Dehydrin (IPR000167)

Short name: Dehydrin

Overlapping homologous superfamilies


Family relationships



A number of proteins are produced by plants that experience water-stress. Water-stress takes place when the water available to a plant falls below a critical level. The plant hormone abscisic acid (ABA) appears to modulate the response of plant to water-stress. Proteins that are expressed during water- stress are called dehydrins [PMID: 2562763, PMID: 1387328]. Dehydrins contribute to freezing stress tolerance in plants and it was suggested that this could be partly due to their protective effect on membranes [PMID: 15356392].

Dehydrins share a number of structural features. One of the most notable features is the presence, in their central region, of a continuous run of five to nine serines followed by a cluster of charged residues. Such a region has been found in all known dehydrins so far with the exception of pea dehydrins. A second conserved feature is the presence of two copies of a lysine-rich octapeptide; the first copy is located just after the cluster of charged residues that follows the poly-serine region and the second copy is found at the C-terminal extremity.

GO terms

Biological Process

GO:0006950 response to stress
GO:0009415 response to water

Molecular Function

No terms assigned in this category.

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.