Protein
Viral guanylyltransferase VP3
Organism
Banna virus (strain Indonesia/JKT-6423/1980)
Function
Outer capsid protein involved in mRNA capping. Catalyzes the last 3 enzymatic activities for formation of the 5' cap structure on the viral plus-strand transcripts, namely the RNA guanylyltransferase, RNA-7N- and RNA-2'O-methyltransferase activities.
Sequence
MELFSDSGSIVENFKERINKLVFDYSLNHGGFRKTYKIQRDRVYYMLGDAHHANLSGKCLMLYNSEKDIFEGLGFKVKGSRINVSKTQILRNYEINFETIIGVEPNGLKTISTAKDVKKLYDIYSYKSSLHPFDDFMAHCINRWGMSIPASLERIIKSEIIKVRSGVLNRNSELYNYIPTVDASFSEMSRGPANVILTDGKLVPDGTCFGPILSKSVEDPRLKNEFRSKGLIMVHDYFILIGESPGPHYKKYTKMTKDNTIFWDPRRTDHKFNNVVSYFKKENIRDVVEYTTDALNRGLKPLVLIDIRKDKPKNLNTPEGAIEWERMVHDDNNLIIDMVNALDKRVTVCAKLRPAFMQVGSMRKLLRPVRILPLPYLRRSTAEFNMFVPNEALMNGNEIYDVTYDDLVRMSSEVFVLKNIIGGLYNMYLKDMHLNLGVVNKSVSLSDGSSAIWSLSNINNERISNFNFNNFLYAAPYSDFATSSVKRHFKGRNYSDWCLNILDEVNLKDGVYLVPLYAIVGGGQITSHDFVNAIITDQEQLIDFTQSERALSTQVVKLVSFILKDSFTAKGLNWTEIDNEIRNRRLSSLSGVGFTVTKMLDGKVLVDGKVVTVSGHMLYILLGSILGLPYGIKKYLKEIELNILKPGSSYERGVGGRVWHGLISHYLAVDCVIDVIDEYMVCTYEDRSKLNVVLRYVKSKLLELGSKYDVYLSVDERLVL