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UPF2

Gene
UPF2
Protein
Regulator of nonsense transcripts 2
Organism
Homo sapiens
Length
1272 amino acids
Function
Involved in nonsense-mediated decay (NMD) of mRNAs containing premature stop codons by associating with the nuclear exon junction complex (EJC). Recruited by UPF3B associated with the EJC core at the cytoplasmic side of the nuclear envelope and the subsequent formation of an UPF1-UPF2-UPF3 surveillance complex (including UPF1 bound to release factors at the stalled ribosome) is believed to activate NMD. In cooperation with UPF3B stimulates both ATPase and RNA helicase activities of UPF1. Binds spliced mRNA.
Mass
147.81 kDa
Sequence
MPAERKKPASMEEKDSLPNNKEKDCSERRTVSSKERPKDDIKLTAKKEVSKAPEDKKKRLEDDKRKKEDKERKKKDEEKVKAEEESKKKEEEEKKKHQEEERKKQEEQAKRQQEEEAAAQMKEKEESIQLHQEAWERHHLRKELRSKNQNAPDSRPEENFFSRLDSSLKKNTAFVKKLKTITEQQRDSLSHDFNGLNLSKYIAEAVASIVEAKLKISDVNCAVHLCSLFHQRYADFAPSLLQVWKKHFEARKEEKTPNITKLRTDLRFIAELTIVGIFTDKEGLSLIYEQLKNIINADRESHTHVSVVISFCRHCGDDIAGLVPRKVKSAAEKFNLSFPPSEIISPEKQQPFQNLLKEYFTSLTKHLKRDHRELQNTERQNRRILHSKGELSEDRHKQYEEFAMSYQKLLANSQSLADLLDENMPDLPQDKPTPEEHGPGIDIFTPGKPGEYDLEGGIWEDEDARNFYENLIDLKAFVPAILFKDNEKSCQNKESNKDDTKEAKESKENKEVSSPDDLELELENLEINDDTLELEGGDEAEDLTKKLLDEQEQEDEEASTGSHLKLIVDAFLQQLPNCVNRDLIDKAAMDFCMNMNTKANRKKLVRALFIVPRQRLDLLPFYARLVATLHPCMSDVAEDLCSMLRGDFRFHVRKKDQINIETKNKTVRFIGELTKFKMFTKNDTLHCLKMLLSDFSHHHIEMACTLLETCGRFLFRSPESHLRTSVLLEQMMRKKQAMHLDARYVTMVENAYYYCNPPPAEKTVKKKRPPLQEYVRKLLYKDLSKVTTEKVLRQMRKLPWQDQEVKDYVICCMINIWNVKYNSIHCVANLLAGLVLYQEDVGIHVVDGVLEDIRLGMEVNQPKFNQRRISSAKFLGELYNYRMVESAVIFRTLYSFTSFGVNPDGSPSSLDPPEHLFRIRLVCTILDTCGQYFDRGSSKRKLDCFLVYFQRYVWWKKSLEVWTKDHPFPIDIDYMISDTLELLRPKIKLCNSLEESIRQVQDLEREFLIKLGLVNDKDSKDSMTEGENLEEDEEEEEGGAETEEQSGNESEVNEPEEEEGSDNDDDEGEEEEEENTDYLTDSNKENETDEENTEVMIKGGGLKHVPCVEDEDFIQALDKMMLENLQQRSGESVKVHQLDVAIPLHLKSQLRKGPPLGGGEGEAESADTMPFVMLTRKGNKQQFKILNVPMSSQLAANHWNQQQAEQEERMRMKKLTLDINERQEQEDYQEMLQSLAQRPAPANTNRERRPRYQHPKGAPNADLIFKTGGRRR

Gene
UPF2
Protein
Regulator of nonsense transcripts UPF2
Organism
Arabidopsis thaliana
Length
1181 amino acids
Function
Recruited by UPF3 associated with the EJC core at the cytoplasmic side of the nuclear envelope and the subsequent formation of an UPF1-UPF2-UPF3 surveillance complex (including UPF1 bound to release factors at the stalled ribosome) is believed to activate NMD. In cooperation with UPF3 stimulates both ATPase and RNA helicase activities of UPF1. Binds spliced mRNA (By similarity). Involved in nonsense-mediated decay (NMD) of mRNAs containing premature stop codons by associating with the nuclear exon junction complex (EJC). Required for plant development and adaptation to environmental stresses, including plant defense and response to wounding.
Similarity
Belongs to the RENT2 family.
Mass
133.962 kDa
Sequence
MDHPEDESHSEKQDDEEALARLEEIKKSIEAKLTLRQNNLNPERPDSAYLRTLDSSIKRNTAVIKKLKQINEEQREGLMDDLRGVNLSKFVSEAVTAICEAKLKSSDIQAAVQICSLLHQRYKEFSASLTQGLLKVFFPGKSAEDLEADKNSKAMKKRSTLKLLLELYYVGVIEDSNIFINIIKDLTSVEQLKDRDTTQTNLTLLTSFARQGRIFLGLPISGQDEDFFKGLDVTADQKKSFKKAFNTYYDALADLLQSEHKLLLQMEKENAKLVNAKGELSEDSASSYEKLRKSYDHLYRNISSLAEALDMQPPVMPEDGTTRLTAGDEASPSGTVKDTSVPEPIWDDEDTKTFYECLPDLRAFVPAVLLGEAEPKSNEQSAKAKEKLSESSSEVVENQQTTEDTTEVSADSASMDDRSNAEQPKEKEEVEKEKAKDTKKEKGKEKDSEKKMEHEKEKGKSLDVANFERLLQRLPGCVSRDLIDQLTVEYCYLNSKTNRKKLVKALFNVPRTSLELLAYYSRMVATLASCMKDIPSMLVQMLEDEFNSLVHKKDQMNIETKIRNIRFIGELCKFKIVPAGLVFSCLKACLDEFTHHNIDVACNLLETCGRFLYRSPETTLRMTNMLDILMRLKNVKNLDPRQSTLVENAYYLCKPPERSARISKVRPPLHQYVRKLLFSDLDKDSIANVLKQLRKLPWSECEQYILKCFMKVHKGKYGQIHLIASLTSGLSRHHDEFVVAVVDEVLEEIRVGLELNEYGAQQKRLAHMRFLGELYNYEHVDSSVIFETLYLTLLYGHDTSEQEVLDPPEDFFRVRMVIILLETCGHYFDRGSSKKRLDQFLIHFQRYILSKGHLPLDIEFDLQDLFANLRPNMTRYSTIDEVNAAILQLEEREHASSGDKVSIERHSDTKPSNKSSSDVISSNGKSTAKDIRENGEAHGEESDSDSGSGSVVRDGQNEELDDGNHERGSESGDGDDYDDGDGPGSDDDKFRVRQKVVTVDLEEQADFDQELKALLQESMEQRKLELRGRPALNMTIPMSVFEGSGKDHHHFGRVVGENGEEVLDEENGEQREVQVKVLVKRGNKQQTRQMLIPSDCALVQSTKQKEAAELEEKQDIKRLVLEYNERDEEEANGLGTQILNWTSGGSRGSTRTGEGSGKSGGSRHRFYYHQGGGGSYHARRK

Gene
upf2
Protein
Nonsense-mediated mRNA decay protein 2
Organism
Schizosaccharomyces pombe (strain 972 / ATCC 24843)
Length
1049 amino acids
Function
Involved in nonsense-mediated decay of mRNAs containing premature stop codons. It interacts, via its C-terminus, with NAM7/UPF1. Could be involved in determining the efficiency of translational termination or reinitiation or factors involved in the initial assembly of an initiation- and termination-competent mRNP.
Mass
122.096 kDa
Sequence
MSREEQIKKLNQYLDNRELAFRAKDGDKNIFHTESQLDSSLKKNTAFMKRCKSSLTSENYDSFIKEIKTLSLKKFIPEITAAIVEGMMKCKATKDILSSVKIVWALNLRFSTAFTGPMLANLYCALYPNPGYSLCHESYFELKQNENEVSEKDRSSHLLKVRPLLRFLIEFWLNGVVGTPEDFVSYLPSTDSNDKKFRKPWFEEQNLKKPLVVLLFNDLMDTRFGFLLLPVLTSLVRTFSCELFTTEDFEDKETLELVNRLNPVVWRTYLRKSLNSYVDKLEVYCQKRKSLFEELNKQYQEQSIIRADPNNEKFQRLANFSKSIESEFSSYASLSEVLNRKASEDLLELNFMEKASSGTNSVFNASGERSESANVETAQVWDDREQYFFYEVFPNFNEGSIAEMKSSIYESSQEGIRSSSENNKKEDDLKDSTGDLNTTQVSSRVDNFLLKLPSMVSLELTNEMALEFYDLNTKASRNRLIKALCTIPRTSSFLVPYYVRLARILSQLSSEFSTSLVDHARHSFKRMIHRKAKHEYDTRLLIVRYISELTKFQLMPFHMVFECYKLCINEFTPFDLEVLALLLESCGRFLLRYPETKLQMQSFLEAIQKKKLASALASQDQLVLENALHFVNPPKRGIIVSKKKSLKEEFLYDLIQIRLKDDNVFPTLLLLRKFDWKDDYQILYNTIMEVWNIKYNSLNALARLLSALYKFHPEFCIHVIDDTLESLFSAVNNSDHVEKQKRLAQARFISELCVIHMLDVRAITNFLFHLLPLEKFESFLTMKASTLTNINNDMFRLRLIVVVLQTCGPSIIRSKTKKTMLTYLLAYQCYFLIQPEMPLDMLYEFEDVIGYVRPSMKVYMHYEEARNALTERLQAISDDWEEDDTRPVFQGANDGDISSNEESVYLPEDISDESETDEESSGLEESDLLDSEDEDIDNEMQLSRELDEEFERLTNESLLTRMHEKNPGFDVPLPLRASSLGSPYVTRNEESASESSHVMFTLLTKRGNKQRSQYLEIPSHSSLVRSTKNQQTEEIMERKRVKEMVLNFE