Protein: Serine/threonine-protein kinase Smg1 (EC 2.7.11.1) (Q70PP2)
Organism: Drosophila melanogaster (Fruit fly)
Function: Serine/threonine protein kinase involved in mRNA surveillance. Recognizes the substrate consensus sequence [ST]-Q. Involved in nonsense-mediated decay (NMD) of mRNAs containing premature stop codons, probably by phosphorylating Upf1.
Subcellular location: Cytoplasm.
Interaction partners:
- Eukaryotic translation release factor 3, isoform A
- RE04053p
- Regulator of nonsense transcripts 1 homolog
- Eukaryotic peptide chain release factor subunit 1
- LD36341p
- FI21285p1
- Eukaryotic initiation factor 4A-III
- GH14566p
- Nuclear cap-binding protein subunit 2
- RNA-binding protein 8A
Sequence:
MKNAIHPENCNGAGTEEEASSAFHAEIDRVLLNNNGNHGDSSNEGGGGNGSGRGGATGSGNIAGLGGSESMWSPGGGKSHDVAQAFANALLLRNMNHVVGKGQPVVQNHRKAYQCKGDTINPMANGEDLRLSKIIRRLINENNPTVSLELCSKLDQAVRTPINMGYMTCSFVWILDNMLTLYKQCPPPVLEECSKTLGLIGFINRKSYPIYEEFIVKNYKSSKRMQKYMIMALRATLSCDTKCELHMYADKIMLLLKDFLENAESADIFIVVSNTLVQFAASYAETFECHFTDVVDIVIGWQLEAGQPTDLKTHCAQVLEQLTPFFSKQIDFSYGLLDQFVEDITTLEEGEPANTAERVGAFVGAFNTLLKCLARMQIFVGMPTCECIVKMAVDHLIKIMPTLHLNTEALVNINELICICLLNNFTGLDPILLEQVLLDQVKRMISLTELQRQSVLYLLLCTVRRLRARLTPSLVHFIFQSNPYMTKVRLRSPGETSYKLLLRTCQETLLIRNVPLLQQAYKYLVDDIDACLEKLLITAPRSKARKASVLLVFHLSALAALAKQTSSIIGMYACKPSILELLLTNCRAHELKFWSKYPAAQQAIFGLLVVHCQANHNFRTNSSLLRDQELSAENTSPTANSFASILRFLDSVLGQAHQLAPQNLRVLLQWIQMLLRECREKIDLLMEQENFRGICRNIAATASKLVPLESAACIQTVLDYGLERLEKYPKLLILYRDTALQQLQMLSTNYHAPYFQIYAQLPLHLTLTGGESSMPGMASRRVSVWQQRISQYSAVRDNVFRDFFDRVQKPEQDSLIHCLRELFVRSCQVAPQDERQMNLSQCTKRCQRLAIAWLQFEAARYCVDQRLRTTVGKPQETFLGFEAIIMRHARLLSGCAKEIERSALDDLSLEELLSMQSNLSLLLGFLDALEKLIYNAAEGSAFALRPPEKQVAAFFRLNNPTCQSWFNRIRIGVVIIAMHVQQPELVIRYAQQILVNSKTQDPTYSQAIVYMAWSLVSCQEADSLRGLRLWARGKSCKSYKWLKYAADQAAGKRESALAGYRTILAEKELQSELEPHTRQFVVSQMMQCLQDLGQWSQLVELKQQQMTRPEDRELNPFLQRSNVEVNALERLLAKSEESCSSMDALGGVFQQLSLWPSNWDESVSSSGLSERASFSSIHMRQRTEDIVLHKLLEDRCVPDQAKNLLDTQWRDSLLNPSFDQRSCKELTLLRHIVQGVSGGQELSLLPVSSGRCQNRSKFISSAILMRCLAWTQLLRQHCAPGSWETLCLDAAAAAREEGNLQLAETLLTQFFGQPIGEIAALFSLEQGVQTDNPEMLRGYSELVKCLHLQQQQSQTHSGDLSSSIDVCAALCLNIQKSNNQPAAGADLLLNLADWIAVRTCNGLTTNQSPVLIQLLDQLPECPLTCDSSQPLAIPQAERMVARLVHSCLQQRPNYAEALIAYGNWCYRWGKKVADSCCVLTQADATAISQALDIPQPLESEKLDELLQALSTEQPPANCVEVCPDAARARDDEAAKNRLRRLTFLADKTPEALDAILQIWRRAIANTYDYYKDAARSYFQYLSFKSGSGPEKPEGEGVVSQRERLHVDDSNLVTTTLRLLRLIVKHASGLQEVLEQGLHTTPIAPWKVIIPQLFSRLNHHEPYVRKSVCDLLCRLAKSRPQLVIFPAVVGANREQQDATAPPATARPTTEDACCYGYLLGELSKQAPEAVQHVKLMVKELRRVCLLWDEYWIHSLAHIYNTYVSRVSALATDFRPDDHEGKNNRFNVWRPQLLADLEALVAVTSRPPETTYERSFRKRFDAPIRLTVDALRHRRYPEAWDKLKQLYHILQSNMIRGSGSTLKMQSISPVLCGIGRMRISMPGLDAHGPDGDQVYIESVESSVCVLPTKTKPKKVAFYGSNGQRYTFLFKGMEDLHLDERIMQFLSISNAIMACRSDAPGNGCYRAHHYSVIPLGPQSGLISWVDGVTPVFALYKKWQQRRSQVAGNAGAGAVANVPRRFTDLFYNKLSPLLAKHNMQVSDPRRQWPISVLLQVLDELSQETPNDLLARELWCQAGNAAEWRQSVRRFVRCMSVMSMIGYVIGLGDRHLDNVLINLGSGDIVHIDYNVCFEKGRTLRIPEKVPFRLTQNLVQAMGITGIEGPFRLGCEYVLKVMRKERETLLTLLEAFVYDPLVDWTTNDDAQALRRSLNAKLQESADGGGAGGLGVGDLKYHKKDKNKGKPLDSDVKRQPFLSKLGMLQKYWSTNKTELMPQLEEMEQEVGNLQAAQAKQVVAEEELVKLNQRSALIAEIKSLGTAIESHSFNTASLRNAVRRGHSEALALLSTERLPDFGRVQCILRSYGQCLQLYHLLDLQGQLVKLQMESNSENAREFSALTEALQLSGLDSMRSQLNELLGRMDMVAQKSSKHLQEYAGVMNFYPEQSHRQNLFVRFHDSFATYIQNGYTADSTTNTNSPSSSIICKADVVGVAEAMEYSWERLGCQLHEASKLYAANQAQALTLGAPTTALLSMIVQSGCSQLLLKASLVRTLDRAGGAFAAYEQVALASHDDGLLHHQLLFIHLVRTMLQGVLVMTKEEDQHLAQLESLLSALSHLKKMFEYDLPANLYRLLLLQPNLGKLSALCHLSASSLAQLFLEATMENGHKPPDQFPVERRFLLTLQPVYDQFLLASTSLDSLVSSMQSMLEDVHDVQTQQIMELGLMRSCHTELNDECFFGLVSEALESSRTCDVREMARPMLGFIHRLQVEKLAGLLPILTRNFYTAVGPQCLPTASCGDPAQADHLCESLFISLQSDGALLQQQAEIALLSQQVDLHTLAASAQYWAYSEALGSQLRCGPHIVSRPKLTAAIGECWLELDQKLTALQQLQAGLESQLSQLQTQRSNWNRNHIDNLLRMEQCNKQRTMSHVALLQKMTDGAGAVARLEQNAIVVGEEGQALVDHLEQWLAAHGQWQASSSRISAVEQSMVELLDPEGAIDHYWLENVQGLLEEQTCKVHREIAAIEGEQQSKHRFICTLLKETLRLLENMPRFHVQSLCSEAQAQGQGKMEYANVQLLSDHLREGQGLMQSLYMRLQELRKDICSDRRVLQPSMLQNWRHQLEMILTLAKQEVNEFFKGLEDFMQHAGETDSYEIFTHAKGSGNVHEQKRNAYGVSVWKKIRMKLEGRDPDSNQRSTVAEQVDYVIREACNPENLAVLYEGWTPWV