InterPro domain: IPR044788

This entry represents a group of plant proteins, including Ole e 10 from Olea europaea (Common olive), and PLASMODESMATA CALLOSE-BINDING PROTEIN 1-8 (PDCB1-8)/CBX8D from Arabidopsis. They contain the carbohydrate-binding module, which is the most common non-catalytic module associated with enzymes active in plant cell-wall hydrolysis. Ole e 10 has been shown to bind preferentially 1,3-beta-glucans. It is a major pollen allergen that may be involved in pollen tube wall re-formation during germination [ 1 ]. In Arabidopsis, PDCBs may be involved in cell-to-cell trafficking regulation [ 2 ].

1. An olive pollen protein with allergenic activity, Ole e 10, defines a novel family of carbohydrate-binding modules and is potentially implicated in pollen germination. Biochem J 390, 77-84
2. An Arabidopsis GPI-anchor plasmodesmal neck protein with callose binding activity and potential to regulate cell-to-cell trafficking. Plant Cell 21, 581-94