>tr|A0A101ELK1|A0A101ELK1_9EURY RNA 3'-terminal phosphate cyclase OS=Thermococcus sibiricus GN=rtcA MRVIDGSYGEGGGQILRTAVALSVITGEPIKIINIRAKRSNPGLRPQHLHGILALKELSD AKVKGAKEGSTELEFYPKSTRVRHVKVLIKTAGSISLVLQALLPAMVFAEEEVTFEITGG TDVAWSPPVDYLKHITLYALEKLGIKVEIEIRRRGHYPRGGGFVIGKVYPWGTKRPLVAR TFDKIYSFEGISHAVRLPSHVAIRQAKAAKEALERVYPSIPIKIHEEYYEQGKDPHFGPG SGIVIWANTDVLRLGGDALGERGKPAEIVGREAAKALIEQLGPRHAVDKFLGDQLIPFLT FAGGDIWVSEVTKHLITNVWVVEQFFGRVFEMEGEIGKPGKVRVVKKVEL