InterPro domain: IPR044173

This entry represents a group of CASP domain containing proteins mostly from Poaceae, including 1U1/2/3 from rice. They are uncharacterised membrane proteins.

Casparian Strip Membrane Domain Proteins (CASPs) are four-membrane-span proteins that recruit the lignin polymerisation machinery necessary for the deposition of Casparian strips in the endodermis. CASP-like proteins (CASPLs) are found in all major divisions of land plants as well as in green algae. In Arabidopsis, CASPLs show specific expression in a variety of cell types [ 1 ].

1. Functional and evolutionary analysis of the CASPARIAN STRIP MEMBRANE DOMAIN PROTEIN family. Plant Physiol.