ATPP2-A4 (Phloem protein 2-A4); carbohydrate binding. Identical to Uncharacterized protein PHLOEM PROTEIN 2-LIKE A4 (PP2A4) [Arabidopsis Thaliana] (GB:Q9C8U9); similar to ATPP2-A1 (Arabidopsis thaliana phloem protein 2-A1) [Arabidopsis thaliana] (TAIR:AT4G19840.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO41988.1)