Entry
Name
mRNA 5'-phosphatase;
5'-polynucleotidase;
polynucleotide 5'-phosphohydrolase;
RNGTT (gene name);
CET1 (gene name);
mRNA 5'-triphosphate monophosphatase
Class
Hydrolases;
Acting on acid anhydrides;
In phosphorus-containing anhydrides
BRITE hierarchy
Sysname
5'-triphospho-mRNA 5'-phosphohydrolase
Reaction(IUBMB)
a 5'-triphospho-[mRNA] + H2O = a 5'-diphospho-[mRNA] + phosphate
Substrate
Product
Comment
The enzyme, found in eukaryotes and some plus strand RNA viruses (e.g. alphavirus), is involved in mRNA capping. Unlike the eukaryotic enzyme, the viral enzyme requires a purine in the first position of the mRNA. The human enzyme is a multi domain protein that also has the activity of EC
2.7.7.50 , mRNA guanylyltransferase.
History
EC 3.6.1.74 created 2021
Orthology
K01098 polynucleotide 5'-triphosphatase
Genes
CGE : 100770876(Rngtt) 100773893
PLEU : 114681721 114695435(Rngtt)
OPI : 101535862 101536652(RNGTT)
CCAE : 111925738 111925739
SRX : 107731501 107742988(rngtt)
SANH : 107660510 107680298(rngtt)
CAUA : 113037664 113063493
DME : Dmel_CG1810(mRNA-cap)
DSI : Dsimw501_GD15855(Dsim_GD15855)
BCOO : 119070255 119076789
AGIF : 122852653 122855234 122855508 122855563
DMK : 116919835 116934547 116936452 123468033 123470576
PPOI : 119095886 119095888
CBR : CBG_03700(Cbr-cel-1) CBG_03761
ATH : AT3G09100 AT5G01290 AT5G28210
CSAT : 104708977 104734174 104745076 104749285 104764607 104768335
EUS : EUTSA_v10000074mg EUTSA_v10020216mg
BRP : 103855428 103870561 117131528 117131533
BNA : 106427351 106433828 111215797
RSZ : 108846505 108846508 108860069
THJ : 104816222 104823280 104827039
MINC : 123192666 123201994
GHI : 107898847 107899038 107905646 107941706 107958035
CCAJ : 109788592 109815064
APRC : 113848903 113860645
MTR : MTR_4g014920 MTR_7g066810
LJA : Lj0g3v0256839.2(Lj0g3v0256839.2) Lj3g3v1603870.2(Lj3g3v1603870.2)
LANG : 109339089 109340917
PXB : 103941742 103949448 103959590
CMAX : 111466182 111478187
CMOS : 111438145 111453716
MESC : 110620874 110622631
PALZ : 118037561 118037563 118048390
QSU : 111987380 112006691 112036124
ECAD : 122593609 122608141
CSIN : 114267699 114287661 114319874
DOSA : Os12t0193200-01(Os12g0193200)
TDC : 119286366 119295370 119353000 119362063
TAES : 123043384 123051254 123086552 123091397 123096366 123187213
PVIR : 120644093 120685815
CRE : CHLRE_08g376700v5 CHLRE_33g758897v5
SCE : YMR180C(CTL1) YPL228W(CET1)
SEUB : DI49_4263 DI49_5240
SPAO : SPAR_M02950 SPAR_P00480
CGR : CAGL0D03630g CAGL0E06050g
NCS : NCAS_0G01280(NCAS0G01280)
NDI : NDAI_0F01410(NDAI0F01410)
TPF : TPHA_0H01840(TPHA0H01840)
TBL : TBLA_0A02200(TBLA0A02200)
TDL : TDEL_0F01840(TDEL0F01840)
KAF : KAFR_0F01220(KAFR0F01220)
KNG : KNAG_0D00910(KNAG0D00910)
CAL : CAALFM_CR02090CA(CET1)
PPL : POSPLDRAFT_134921 POSPLDRAFT_134922
ADL : AURDEDRAFT_111235 AURDEDRAFT_112500
ABP : AGABI1DRAFT100277(AGABI1DRAFT_100277)
ABV : AGABI2DRAFT151998(AGABI2DRAFT_151998)
EHI : EHI_035610(17.t00048)
» show all
Taxonomy
Reference
Authors
Itoh N, Mizumoto K, Kaziro Y.
Title
Messenger RNA guanlyltransferase from Saccharomyces cerevisiae. II. Catalytic properties.
Journal
J Biol Chem 259:13930-6 (1984)
Reference
Authors
Tsukamoto T, Shibagaki Y, Murakoshi T, Suzuki M, Nakamura A, Gotoh H, Mizumoto K.
Title
Cloning and characterization of two human cDNAs encoding the mRNA capping enzyme.
Journal
Sequence
Reference
Authors
Vasiljeva L, Merits A, Auvinen P, Kaariainen L.
Title
Identification of a novel function of the alphavirus capping apparatus. RNA 5'-triphosphatase activity of Nsp2.
Journal
Other DBs
ExplorEnz - The Enzyme Database: 3.6.1.74
ExPASy - ENZYME nomenclature database: 3.6.1.74