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PAPS2

Gene
PAPS2
Protein
Nuclear poly(A) polymerase 2
Organism
Arabidopsis thaliana
Length
800 amino acids
Function
Essential protein (PubMed:19956626). Polymerase that creates the 3'-poly(A) tail of mRNA's (PubMed:15297145). Also required for the endoribonucleolytic cleavage reaction at some polyadenylation sites. May acquire specificity through interaction with a cleavage and polyadenylation specificity factor (CPSF) at its C-terminus (By similarity). Mediates the polyadenylation of RNAs that are associated with polynucleotide phosphorylase (e.g. PNP1) (PubMed:10872823).
Similarity
Belongs to the poly(A) polymerase family.
Mass
90.968 kDa
Sequence
MVSTQQRTDDDSSQPVKASLKSYGITEPLSIAGPSAADVKRNLELEKFLVDEGLYESKEETMRREEVVVRIDQIVKHWVKQLTRQRGYTDQMVEDANAVIFTFGSYRLGVHGPMADIDTLCVGPSYVNREEDFFIFFRDILAEMEEVTELQPVTDAHVPVMKFKFQGISIDLLYASISLLVIPQDLDISNSSVLCDVDEQTVRSLNGCRVADQILKLVPNSEHFRTTLRCLKYWAKKRGVYSNVTGFLGGVNWALLVARLCQFYPNAIPSMLVSRFFRVYTQWRWPNPVMLCAIEEDDLSFPVWDPRKNHRDRYHLMPIITPAYPCMNSSYNVSQSTLRVMTEQFQFGNTICQEIELNKQHWSSLFQQYMFFEAYKNYLQVDVLAADAEDLLAWKGWVESRFRQLTLKIERDTNGMLMCHPQPNEYVDTSKQFRHCAFFMGLQRADGFGGQECQQFDIRGTVDEFRQEVNMYMFWRPGMDVHVSHVRRRQLPSFVFPNGYKRSRQSRHQSQQCREPGDEGVGSLSDSVERYAKRKNDDEIMNSRPEKREKRASCSLHTLDAASPDSSGITTSGTPQIGIVPGPRAECLVTGDLVCNVTSLPNVEVEAEKFISKITELRKFSQYEHTSGSEQILEVDSRALVQSYHDLAEPVAKHVRPDLSALLACEGGQNKEIGHDMGSESINDTDTQHLPRRLNVNEDVDEVEREAKLGEIAGGVLWNGHCGRNLDHEGFVTPANLDSAVENRNLHSDGLFKSGLPEELQSNSLLSGTGKLDDGARSESLQNEMMRHVFLQPIIGLCKS