invertase/pectin methylesterase inhibitor family protein. similar to invertase/pectin methylesterase inhibitor family protein [Arabidopsis thaliana] (TAIR:AT3G17230.1); similar to Pectinesterase inhibitor precursor (Pectin methylesterase inhibitor) (PMEI) (AdPMEI) (GB:P83326); contains InterPro domain Pectinesterase inhibitor; (InterPro:IPR006501)