Positive Samples: HT-29, SW620 Immunogen sequence: HSVQLTLPPG LEMALGPGRE YRALQLHLHW GAAGRPGSEH TVEGHRFPAE IHVVHLSTAF ARVDEALGRP GGLAVLAAFL EEGPEENSAY EQLLSRLEEI A. Carbonic anhydrase (CA) is an enzyme that assists rapid interconversion of carbon dioxide