ID A0A0Q3R5M0_AMAAE Unreviewed; 592 AA.
AC A0A0Q3R5M0;
DT 20-JAN-2016, integrated into UniProtKB/TrEMBL.
DT 20-JAN-2016, sequence version 1.
DT 27-MAR-2024, entry version 32.
DE RecName: Full=mRNA-capping enzyme {ECO:0000256|PIRNR:PIRNR036958};
DE Includes:
DE RecName: Full=mRNA 5'-triphosphate monophosphatase {ECO:0000256|PIRNR:PIRNR036958};
DE EC=3.6.1.74 {ECO:0000256|PIRNR:PIRNR036958};
DE AltName: Full=mRNA 5'-phosphatase {ECO:0000256|PIRNR:PIRNR036958};
DE Includes:
DE RecName: Full=mRNA guanylyltransferase {ECO:0000256|PIRNR:PIRNR036958};
DE EC=2.7.7.50 {ECO:0000256|PIRNR:PIRNR036958};
DE AltName: Full=GTP--RNA guanylyltransferase {ECO:0000256|PIRNR:PIRNR036958};
DE Short=GTase {ECO:0000256|PIRNR:PIRNR036958};
GN ORFNames=AAES_92648 {ECO:0000313|EMBL:KQK80705.1};
OS Amazona aestiva (Blue-fronted Amazon parrot).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Archelosauria; Archosauria; Dinosauria; Saurischia; Theropoda;
OC Coelurosauria; Aves; Neognathae; Psittaciformes; Psittacidae; Amazona.
OX NCBI_TaxID=12930 {ECO:0000313|EMBL:KQK80705.1, ECO:0000313|Proteomes:UP000051836};
RN [1] {ECO:0000313|EMBL:KQK80705.1, ECO:0000313|Proteomes:UP000051836}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=FVVF132 {ECO:0000313|EMBL:KQK80705.1};
RA Gilbert D.G.;
RL Submitted (OCT-2015) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Bifunctional mRNA-capping enzyme exhibiting RNA 5'-
CC triphosphate monophosphatase activity in the N-terminal part and mRNA
CC guanylyltransferase activity in the C-terminal part. Catalyzes the
CC first two steps of cap formation: by removing the gamma-phosphate from
CC the 5'-triphosphate end of nascent mRNA to yield a diphosphate end, and
CC by transferring the GMP moiety of GTP to the 5'-diphosphate terminus of
CC RNA via a covalent enzyme-GMP reaction intermediate.
CC {ECO:0000256|PIRNR:PIRNR036958}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 5'-end diphospho-ribonucleoside in mRNA + GTP + H(+) = a 5'-
CC end (5'-triphosphoguanosine)-(ribonucleoside) in mRNA + diphosphate;
CC Xref=Rhea:RHEA:67012, Rhea:RHEA-COMP:17165, Rhea:RHEA-COMP:17166,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:33019, ChEBI:CHEBI:37565,
CC ChEBI:CHEBI:167616, ChEBI:CHEBI:167617; EC=2.7.7.50;
CC Evidence={ECO:0000256|ARBA:ARBA00024520};
CC PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:67013;
CC Evidence={ECO:0000256|ARBA:ARBA00024520};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=a 5'-end triphospho-ribonucleoside in mRNA + H2O = a 5'-end
CC diphospho-ribonucleoside in mRNA + H(+) + phosphate;
CC Xref=Rhea:RHEA:67004, Rhea:RHEA-COMP:17164, Rhea:RHEA-COMP:17165,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:167616, ChEBI:CHEBI:167618; EC=3.6.1.74;
CC Evidence={ECO:0000256|PIRNR:PIRNR036958};
CC -!- SUBCELLULAR LOCATION: Nucleus {ECO:0000256|PIRNR:PIRNR036958}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the eukaryotic GTase
CC family. {ECO:0000256|PIRNR:PIRNR036958}.
CC -!- SIMILARITY: In the N-terminal section; belongs to the non-receptor
CC class of the protein-tyrosine phosphatase family.
CC {ECO:0000256|PIRNR:PIRNR036958}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:KQK80705.1}.
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DR EMBL; LMAW01002512; KQK80705.1; -; Genomic_DNA.
DR STRING; 12930.A0A0Q3R5M0; -.
DR Proteomes; UP000051836; Unassembled WGS sequence.
DR GO; GO:0005634; C:nucleus; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:InterPro.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0140818; F:mRNA 5'-phosphatase activity; IEA:InterPro.
DR GO; GO:0004484; F:mRNA guanylyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0004651; F:polynucleotide 5'-phosphatase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008138; F:protein tyrosine/serine/threonine phosphatase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006370; P:7-methylguanosine mRNA capping; IEA:UniProtKB-UniRule.
DR CDD; cd07895; Adenylation_mRNA_capping; 1.
DR Gene3D; 3.30.1490.430; -; 1.
DR Gene3D; 3.30.470.30; DNA ligase/mRNA capping enzyme; 1.
DR Gene3D; 2.40.50.140; Nucleic acid-binding proteins; 1.
DR Gene3D; 3.90.190.10; Protein tyrosine phosphatase superfamily; 1.
DR InterPro; IPR017074; mRNA_cap_enz_bifunc.
DR InterPro; IPR001339; mRNA_cap_enzyme_adenylation.
DR InterPro; IPR013846; mRNA_cap_enzyme_C.
DR InterPro; IPR012340; NA-bd_OB-fold.
DR InterPro; IPR029021; Prot-tyrosine_phosphatase-like.
DR PANTHER; PTHR10367; MRNA-CAPPING ENZYME; 1.
DR PANTHER; PTHR10367:SF17; MRNA-CAPPING ENZYME; 1.
DR Pfam; PF03919; mRNA_cap_C; 1.
DR Pfam; PF01331; mRNA_cap_enzyme; 1.
DR PIRSF; PIRSF036958; mRNA_capping_HCE; 1.
DR SUPFAM; SSF52799; (Phosphotyrosine protein) phosphatases II; 1.
DR SUPFAM; SSF56091; DNA ligase/mRNA capping enzyme, catalytic domain; 1.
DR SUPFAM; SSF50249; Nucleic acid-binding proteins; 1.
PE 3: Inferred from homology;
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134, ECO:0000256|PIRNR:PIRNR036958};
KW Hydrolase {ECO:0000256|PIRNR:PIRNR036958};
KW mRNA capping {ECO:0000256|ARBA:ARBA00023042,
KW ECO:0000256|PIRNR:PIRNR036958};
KW mRNA processing {ECO:0000256|ARBA:ARBA00022664,
KW ECO:0000256|PIRNR:PIRNR036958};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741,
KW ECO:0000256|PIRNR:PIRNR036958};
KW Nucleotidyltransferase {ECO:0000256|ARBA:ARBA00022695,
KW ECO:0000256|PIRNR:PIRNR036958}; Nucleus {ECO:0000256|PIRNR:PIRNR036958};
KW Reference proteome {ECO:0000313|Proteomes:UP000051836};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|PIRNR:PIRNR036958}.
FT DOMAIN 267..455
FT /note="mRNA capping enzyme adenylation"
FT /evidence="ECO:0000259|Pfam:PF01331"
FT DOMAIN 460..553
FT /note="mRNA capping enzyme C-terminal"
FT /evidence="ECO:0000259|Pfam:PF03919"
FT REGION 169..214
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT REGION 567..592
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 183..198
FT /note="Acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 578..592
FT /note="Pro residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 289
FT /note="N6-GMP-lysine intermediate"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-2"
FT BINDING 294
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 310
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 338..340
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 453..455
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
FT BINDING 523..528
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|PIRSR:PIRSR036958-3"
SQ SEQUENCE 592 AA; 67740 MW; 2D6BF9F2F0A5813D CRC64;
MSYNKIPPRW LHCPRRGQPV AGKFLPLKTM LGPRYDEQVA EENRFHPSML SNYLKSLKVK
MGLLVDLTNT TRFYDRXDIE KEGIKYIKLQ CKGHGECPTP ENTETFIRVC EHFSDKNPSE
FIVTSLKFVV ILSPRNLNVC IEAAVATFAQ ARPPGIYKGD YLKELFRRYG DEDDAPSPPE
LPEWCFEDDE EEDDDNGKTG GQESEPGSSS ASFGKRRKER LKLGAIFLEG VTVKCVTQVT
TQPKLGGIQQ KCQQFCGWEG SGFPGAQPVS MDKQNIKFLE QKPYKVSWKA DGTRYMMLID
GKNEVYMIDR DNSIFHVSNL EFPFRKDLRT HLANTLLDGE MIIDKVNGQV VPRYLIYDII
KFNGQPVGDC DFNVRLACIE KEIIFPRHEK MKNGLIDKAQ EPFSVRNKPF FDIYASRKLL
EGSFAREVSH EVDGLIFQPT GKYKPGRCDD ILKWKPPSLN SVDFRLKITR IGGEGLLTQN
VGLLYVGNFD RPFAQIKVTK ELKQYDNKII ECKFENNSWV FMRQRIDKSF PNAYSTAMAV
CNSIQNPVTK EMLFEFIDRC AAASQGQTRK HHLDPDTELM PPPPPKRPRT IP
//
