>sp|C3NGZ8|PYRI_SULIN Aspartate carbamoyltransferase regulatory chain OS=Sulfolobus islandicus GN=pyrI MISSSKRDELIVSKIRKGTVIDHIPAGRALAVLRILGIRGSEGYRVALVMNVESKKIGRK DIVKIEDRVIDEKEASLITLIAPSATINIIRDYVVTEKRHLEVPKQIRGLIKCPNPQCIT NNDVEAESRFTTISIKPLKLKCEYCEIYITEEDVIRQIL