ID 2.1.1.57 DE methyltransferase cap1. AN cap1-MTase. AN messenger RNA (nucleoside-2'-)-methyltransferase. AN mRNA (nucleoside-2'-O)-methyltransferase. CA a 5'-end (N(7)-methyl 5'-triphosphoguanosine)-ribonucleoside in mRNA + CA S-adenosyl-L-methionine = a 5'-end (N(7)-methyl 5'-triphosphoguanosine)- CA (2'-O-methyl-ribonucleoside) in mRNA + H(+) + S-adenosyl-L-homocysteine. CC -!- This enzyme catalyzes the methylation of the ribose on the first CC transcribed nucleotide of mRNA or snRNA molecules. CC -!- This methylation event is known as cap1, and occurs in all mRNAs and CC snRNAs of higher eukaryotes, including insects, vertebrates and their CC viruses. CC -!- The human enzyme can also methylate mRNA molecules that lack CC methylation on the capping 5'-triphosphoguanosine. CC -!- Formerly EC 2.1.1.58. DR D2HRF1, CMTR1_AILME; A2VE39, CMTR1_BOVIN; Q803R5, CMTR1_DANRE; DR Q9W4N2, CMTR1_DROME; Q8N1G2, CMTR1_HUMAN; Q9DBC3, CMTR1_MOUSE; DR Q5R981, CMTR1_PONAB; Q5U2Z5, CMTR1_RAT ; Q6GQ76, CMTR1_XENLA; DR P41469, CMTR_NPVAC ; P15916, MCE_FOWPN ; P68544, MCE_MYXVL ; DR P68545, MCE_MYXVU ; P19748, MCE_SHEVK ; P23334, MCE_SWPVK ; DR Q76ZT1, MCE_VACCA ; P21033, MCE_VACCC ; P07617, MCE_VACCW ; DR P33052, MCE_VAR67 ; A8XYX2, MTR1A_CAEBR; Q9NAA5, MTR1_CAEEL ; DR Q54WR1, MTR1_DICDI ; A4HQI9, MTR1_LEIBR ; Q4Q089, MTR1_LEIMA ; DR Q38AH0, MTR1_TRYB2 ; Q4E123, MTR1_TRYCC ; Q91B85, POLG_ALKV ; DR C8XPA8, POLG_BANV ; Q32ZE0, POLG_BUSV ; P27909, POLG_DEN1B ; DR P33478, POLG_DEN1S ; P17763, POLG_DEN1W ; P29990, POLG_DEN26 ; DR P29991, POLG_DEN27 ; P14337, POLG_DEN28 ; P07564, POLG_DEN2J ; DR P14340, POLG_DEN2N ; P12823, POLG_DEN2P ; Q9WDA6, POLG_DEN2Q ; DR Q99D35, POLG_DEN3C ; Q5UB51, POLG_DEN3I ; Q6YMS3, POLG_DEN3M ; DR P27915, POLG_DEN3P ; Q6YMS4, POLG_DEN3S ; P09866, POLG_DEN4D ; DR Q2YHF2, POLG_DEN4H ; Q58HT7, POLG_DEN4P ; Q5UCB8, POLG_DEN4S ; DR Q2YHF0, POLG_DEN4T ; C8XPB2, POLG_EHV ; Q32ZD7, POLG_ILHV ; DR P27395, POLG_JAEV1 ; P19110, POLG_JAEV5 ; P32886, POLG_JAEVJ ; DR G3FEX6, POLG_JAEVM ; D7RF80, POLG_KFDV ; Q32ZD5, POLG_KOKV ; DR P14335, POLG_KUNJM ; P29837, POLG_LANVT ; P22338, POLG_LIV ; DR P33515, POLG_MCFA ; P05769, POLG_MVEV5 ; Q7T6D2, POLG_OHFV ; DR Q04538, POLG_POWVL ; Q32ZD4, POLG_ROCV ; P09732, POLG_STEVM ; DR Q01299, POLG_TBEVH ; P07720, POLG_TBEVS ; P14336, POLG_TBEVW ; DR Q5WPU5, POLG_USUV ; P06935, POLG_WNV ; Q9Q6P4, POLG_WNV9 ; DR C5H431, POLG_WSLV ; P03314, POLG_YEFV1 ; Q6DV88, POLG_YEFVA ; DR Q6J3P1, POLG_YEFVC ; Q074N0, POLG_YEFVE ; Q89277, POLG_YEFVF ; DR Q98803, POLG_YEFVI ; Q1X881, POLG_YEFVN ; Q9YRV3, POLG_YEFVT ; DR Q1X880, POLG_YEFVU ; Q32ZE1, POLG_ZIKV ; A0A024B7W1, POLG_ZIKVF ; DR A0A142I5B9, POLG_ZIKVK ; P0C6W1, R1AB_BC133 ; P0C6V9, R1AB_BC279 ; DR P0C6W0, R1AB_BC512 ; P0C6W2, R1AB_BCHK3 ; P0C6W3, R1AB_BCHK4 ; DR P0C6W4, R1AB_BCHK5 ; P0C6W5, R1AB_BCHK9 ; P0C6W6, R1AB_BCRP3 ; DR P0C6W7, R1AB_CVBEN ; P0C6W8, R1AB_CVBLU ; P0C6W9, R1AB_CVBM ; DR P0C6X0, R1AB_CVBQ ; P0C6X1, R1AB_CVH22 ; P0C6X2, R1AB_CVHN1 ; DR P0C6X3, R1AB_CVHN2 ; P0C6X4, R1AB_CVHN5 ; P0C6X5, R1AB_CVHNL ; DR P0C6X6, R1AB_CVHOC ; P0C6X8, R1AB_CVM2 ; P0C6X9, R1AB_CVMA5 ; DR P0C6Y0, R1AB_CVMJH ; P0C6Y5, R1AB_CVPPU ; Q98VG9, R1AB_FIPV ; DR P0C6Y1, R1AB_IBVB ; P0C6Y2, R1AB_IBVBC ; P0C6Y3, R1AB_IBVM ; DR K9N7C7, R1AB_MERS1 ; P0C6Y4, R1AB_PEDV7 ; P0C6X7, R1AB_SARS ; DR P0DTD1, R1AB_SARS2 ; //