>sp|Q5MQC9|NS12_CVHN1 Non-structural protein 4 OS=Human coronavirus HKU1 GN=4 MDVWRPSYTHSLVIREFGVTNLEDLCLKYNYCQPIVGYCIVPLNVWCRKFGKFASHFTLR SHDISHSNNFGVVTSFTTYGNTVSEAVSRLVESASEFIVWRAEALNKYG