>sp|Q6NTW6|ULA1_XENLA NEDD8-activating enzyme E1 regulatory subunit OS=Xenopus laevis GN=nae1 MAQVVHIKEQKYDRQLRLWGDHGQEALESAHVCLINATATGTEILKNLVLPGIGLFTIVD GNVVAGEDVGNNFFLQKESIGKNRAQTSMELLQELNDDVTGNFVPESPEQLLDKDPSFFC KFTMVISTQLPESTLLRLAETLWDSNIPLLVCRAYGFVGYMRIIVKEHTVIESHPDNALE DLRLDQPFPELREHLQSYDLDHMERKDHSHTPWIIVVAKYLDKWRSENGGQMPKSYKEKE SFRDLIRQGILKNENGVPEDEENFEEAIKNVNTALNITKVSSSVEEILNDDRCTNLTHQS TSFWILARAVKEFMAMEGKGNLPLRGTIPDMIADSDKFIKLQNIYREKAKKDASAVESCV SKLLQSVGRPPESISERDIRLFCRNCAFLRVVRCRSLEEEYGLDTAKKDDIVSLMENPDN EIVLYLMLRAVDRFQKQLGRYPGIYNYQIESDIGKLKSCLNGLLQEYGLSLTVKDEYIQE FCRYGAAEPHTIASFLGGAAAQEAIKIITKQFVIFNNTFIYNAMLQTSATFQL