>sp|C3MQG8|PYRI_SULIL Aspartate carbamoyltransferase regulatory chain OS=Sulfolobus islandicus GN=pyrI MISSSKRDELIVSKIRKGTVIDHIPAGRALAVLRILGIRGSEGYRVALVMNVESKKIGRK DIVKIEDRVIDEKEASLITLIAPSATINIIRDYVVTEKRHLEVPKQIRGLIKCPNPQCIT NNDVEAESRFTTISIKPLKLKCEYCEIYITEEDVIRQIL