InterPro domain: IPR027942

This entry represents the N terminus of the sieve element occlusion (SEO) proteins (also known as forisomes), which are phloem proteins accumulated during sieve element differentiation [ 1 , 2 ]. This domain mediates homologous dimerisation of the forisome protein MtSEO-F, probably via hydrophobic interplay [ 3 ].

1. Molecular and phylogenetic characterization of the sieve element occlusion gene family in Fabaceae and non-Fabaceae plants. BMC Plant Biol. 10, 219
2. Arabidopsis P-protein filament formation requires both AtSEOR1 and AtSEOR2. Plant Cell Physiol. 53, 1033-42
3. Identification and molecular analysis of interaction sites in the MtSEO-F1 protein involved in forisome assembly. Int J Biol Macromol 144, 603-614