invertase/pectin methylesterase inhibitor family protein. similar to invertase/pectin methylesterase inhibitor family protein [Arabidopsis thaliana] (TAIR:AT4G15750.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO47926.1); similar to hypothetical protein [Vitis vinifera] (GB:CAN62928.1); contains InterPro domain Pectinesterase inhibitor; (InterPro:IPR006501)