enzyme inhibitor/ pectinesterase. 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); similar to Chain B, Crystal Structure Of The Complex Between Pectin Methylesterase And Its Inhibitor Protein (GB:1XG2); similar to pectinmethylesterase inhibitor [Actinidia deliciosa] (GB:BAC54966.1); contains InterPro domain Pectinesterase inhibitor; (InterPro:IPR006501)