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Protein

Replicase large subunit

Gene
N/A
Organism
Tomato mosaic virus (strain L) (ToMV) (TMV strain tomato)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Replicase large subunit: is an RNA-dependent RNA polymerase active in viral RNA replication.1 Publication
Replicase small subunit: is a methyltransferase active in RNA capping and an RNA helicase. Methyltransferase displays a cytoplasmic capping enzyme activity. This function is necessary since all viral RNAs are synthesized in the cytoplasm, and host capping enzymes are restricted to the nucleus. Helicase region probably exhibits NTPase and RNA unwinding activities (Potential). It also acts as a suppressor of RNA-mediated gene silencing, also known as post-transcriptional gene silencing (PTGS), a mechanism of plant viral defense that limits the accumulation of viral RNAs. May mediate silencing suppression through either inhibition of HEN1-mediated siRNA or siRNA demethylation (By similarity).By similarityCurated

Catalytic activityi

Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1).PROSITE-ProRule annotation
ATP + H2O = ADP + phosphate.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi833 – 840ATPSequence analysis8

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Helicase, Hydrolase, Nucleotidyltransferase, RNA-directed RNA polymerase, Suppressor of RNA silencing, Transferase

Keywords - Biological processi

Viral RNA replication

Keywords - Ligandi

ATP-binding, Nucleotide-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Replicase large subunit (EC:2.1.1.-, EC:2.7.7.-, EC:2.7.7.48, EC:3.6.4.13)
Alternative name(s):
183 kDa protein
RNA-directed RNA polymerase
Cleaved into the following chain:
Alternative name(s):
126 kDa protein
Methyltransferase/RNA helicase
Short name:
MT/HEL
OrganismiTomato mosaic virus (strain L) (ToMV) (TMV strain tomato)
Taxonomic identifieri12252 [NCBI]
Taxonomic lineageiVirusesssRNA virusesssRNA positive-strand viruses, no DNA stageVirgaviridaeTobamovirus
Virus hostiAntirrhinum majus (Garden snapdragon) [TaxID: 4151]
Capsicum (peppers) [TaxID: 4071]
Delphinium [TaxID: 46246]
Petunia [TaxID: 4101]
Solanum lycopersicum (Tomato) (Lycopersicon esculentum) [TaxID: 4081]
Tagetes (marigolds) [TaxID: 13707]
Proteomesi
  • UP000001451 Componenti: Genome

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi349C → A: Loss of RNA silencing suppression activity. 1 Publication1

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000411941 – 1616Replicase large subunitAdd BLAST1616
ChainiPRO_00000411951 – 1116Replicase small subunitAdd BLAST1116

Interactioni

Subunit structurei

Heterodimer of a large and a small subunit (By similarity). May interact with the host proteins TOM1 and ARL8.By similarity

Structurei

Secondary structure

11616
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi672 – 675Combined sources4
Helixi676 – 679Combined sources4
Helixi684 – 687Combined sources4
Helixi701 – 729Combined sources29
Beta strandi730 – 732Combined sources3
Beta strandi740 – 746Combined sources7
Turni747 – 750Combined sources4
Beta strandi751 – 754Combined sources4
Beta strandi756 – 758Combined sources3
Beta strandi762 – 768Combined sources7
Beta strandi773 – 777Combined sources5
Beta strandi782 – 784Combined sources3
Beta strandi791 – 797Combined sources7
Helixi798 – 800Combined sources3
Helixi804 – 813Combined sources10
Beta strandi817 – 819Combined sources3
Beta strandi826 – 833Combined sources8
Helixi839 – 846Combined sources8
Turni849 – 851Combined sources3
Beta strandi853 – 857Combined sources5
Helixi859 – 869Combined sources11
Turni870 – 872Combined sources3
Turni879 – 881Combined sources3
Beta strandi882 – 884Combined sources3
Helixi885 – 890Combined sources6
Turni891 – 893Combined sources3
Beta strandi894 – 896Combined sources3
Beta strandi901 – 905Combined sources5
Helixi908 – 910Combined sources3
Helixi913 – 922Combined sources10
Beta strandi926 – 932Combined sources7
Helixi950 – 953Combined sources4
Beta strandi958 – 963Combined sources6
Beta strandi965 – 968Combined sources4
Helixi971 – 978Combined sources8
Beta strandi981 – 983Combined sources3
Beta strandi995 – 999Combined sources5
Helixi1003 – 1005Combined sources3
Turni1008 – 1010Combined sources3
Beta strandi1015 – 1021Combined sources7
Helixi1022 – 1029Combined sources8
Turni1030 – 1032Combined sources3
Beta strandi1034 – 1038Combined sources5
Helixi1040 – 1042Combined sources3
Beta strandi1047 – 1054Combined sources8
Helixi1068 – 1074Combined sources7
Beta strandi1075 – 1087Combined sources13
Helixi1090 – 1100Combined sources11
Helixi1103 – 1107Combined sources5

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
3VKWX-ray1.90A666-1111[»]
3WRXX-ray2.50C/D666-1116[»]
3WRYX-ray2.30C/D666-1116[»]
SMRiP03587.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini72 – 281Alphavirus-like MTPROSITE-ProRule annotationAdd BLAST210
Domaini801 – 963(+)RNA virus helicase ATP-bindingAdd BLAST163
Domaini964 – 1116(+)RNA virus helicase C-terminalAdd BLAST153
Domaini1380 – 1493RdRp catalyticPROSITE-ProRule annotationAdd BLAST114

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni50 – 458MethyltransferaseAdd BLAST409
Regioni830 – 1085HelicaseAdd BLAST256

Sequence similaritiesi

Contains 1 alphavirus-like MT (methyltransferase) domain.PROSITE-ProRule annotation
Contains 1 RdRp catalytic domain.PROSITE-ProRule annotation

Family and domain databases

Gene3Di3.40.50.300. 1 hit.
InterProiIPR027351. (+)RNA_virus_helicase_core_dom.
IPR002588. Alphavirus-like_MT_dom.
IPR027417. P-loop_NTPase.
IPR007094. RNA-dir_pol_PSvirus.
IPR001788. Tymovirus_RNA-dep_RNA_pol.
[Graphical view]
PfamiPF00978. RdRP_2. 1 hit.
PF01443. Viral_helicase1. 1 hit.
PF01660. Vmethyltransf. 1 hit.
[Graphical view]
SUPFAMiSSF52540. SSF52540. 1 hit.
PROSITEiPS51743. ALPHAVIRUS_MT. 1 hit.
PS51657. PSRV_HELICASE. 1 hit.
PS50507. RDRP_SSRNA_POS. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P03587-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAYTQTATSS ALLETVRGNN TLVNDLAKRR LYDTAVDEFN ARDRRPKVNF
60 70 80 90 100
SKVVSEEQTL IATKAYPEFQ ITFYNTQNAV HSLAGGLRSL ELEYLMMQIP
110 120 130 140 150
YGSLTYDIGG NFASHLFKGR AYVHCCMPNL DVRDIMRHEG QKDSIELYLS
160 170 180 190 200
RLERGNKHVP NFQKEAFDRY AEMPNEVVCH DTFQTCRHSQ ECYTGRVYAI
210 220 230 240 250
ALHSIYDIPA DEFGAALLRK NVHVCYAAFH FSENLLLEDS HVNLDEINAC
260 270 280 290 300
FQRDGDRLTF SFASESTLNY SHSYSNILKY VCKTYFPASN REVYMKEFLV
310 320 330 340 350
TRVNTWFCKF SRIDTFLLYK GVAHKGVDSE QFYKAMEDAW HYKKTLAMCN
360 370 380 390 400
SERILLEDSS SVNYWFPKMR DMVIVPLFDI SLETSKRTRK EVLVSKDFVY
410 420 430 440 450
TVLNHIRTYQ AKALTYSNVL SFVESIRSRV IINGVTARSE WDVDKSLLQS
460 470 480 490 500
LSMTFFLHTK LAVLKDDLLI SKFALGPKTV SQHVWDEISL AFGNAFPSIK
510 520 530 540 550
ERLINRKLIK ITENALEIRV PDLYVTFHDR LVSEYKMSVD MPVLDIRKKM
560 570 580 590 600
EETEEMYNAL SELSVLKNSD KFDVDVFSQM CQSLEVDPMT AAKVIVAVMS
610 620 630 640 650
NESGLTLTFE QPTEANVALA LQDSEKASDG ALVVTSRDVE EPSIKGSMAR
660 670 680 690 700
GELQLAGLSG DVPESSYTRS EEIESLEQFH MATASSLIHK QMCSIVYTGP
710 720 730 740 750
LKVQQMKNFI DSLVASLSAA VSNLVKILKD TAAIDLETRQ KFGVLDVASK
760 770 780 790 800
RWLVKPSAKN HAWGVVETHA RKYHVALLEH DEFGIITCDN WRRVAVSSES
810 820 830 840 850
VVYSDMAKLR TLRRLLKDGE PHVSSAKVVL VDGVPGCGKT KEILSRVNFE
860 870 880 890 900
EDLILVPGRQ AAEMIRRRAN ASGIIVATKD NVRTVDSFLM NYGKGARCQF
910 920 930 940 950
KRLFIDEGLM LHTGCVNFLV EMSLCDIAYV YGDTQQIPYI NRVTGFPYPA
960 970 980 990 1000
HFAKLEVDEV ETRRTTLRCP ADVTHFLNQR YEGHVMCTSS EKKSVSQEMV
1010 1020 1030 1040 1050
SGAASINPVS KPLKGKILTF TQSDKEALLS RGYADVHTVH EVQGETYADV
1060 1070 1080 1090 1100
SLVRLTPTPV SIIARDSPHV LVSLSRHTKS LKYYTVVMDP LVSIIRDLER
1110 1120 1130 1140 1150
VSSYLLDMYK VDAGTQXQLQ VDSVFKNFNL FVAAPKTGDI SDMQFYYDKC
1160 1170 1180 1190 1200
LPGNSTLLNN YDAVTMKLTD ISLNVKDCIL DMSKSVAAPK DVKPTLIPMV
1210 1220 1230 1240 1250
RTAAEMPRQT GLLENLVAMI KRNFNSPELS GVVDIENTAS LVVDKFFDSY
1260 1270 1280 1290 1300
LLKEKRKPNK NFSLFSRESL NRWIAKQEQV TIGQLADFDF VDLPAVDQYR
1310 1320 1330 1340 1350
HMIKAQPKQK LDLSIQTEYP ALQTIVYHSK KINAIFGPLF SELTRQLLDS
1360 1370 1380 1390 1400
IDSSRFLFFT RKTPAQIEDF FGDLDSHVPM DVLELDVSKY DKSQNEFHCA
1410 1420 1430 1440 1450
VEYEIWRRLG LEDFLAEVWK QGHRKTTLKD YTAGIKTCLW YQRKSGDVTT
1460 1470 1480 1490 1500
FIGNTVIIAS CLASMLPMEK LIKGAFCGDD SLLYFPKGCE YPDIQQAANL
1510 1520 1530 1540 1550
MWNFEAKLFK KQYGYFCGRY VIHHDRGCIV YYDPLKLISK LGAKHIKDWD
1560 1570 1580 1590 1600
HLEEFRRSLC DVAESLNNCA YYTQLDDAVG EVHKTAPPGS FVYKSLVKYL
1610
SDKVLFRSLF LDGSSC
Length:1,616
Mass (Da):183,567
Last modified:December 1, 2000 - v2
Checksum:iA8EC8929B5CF7CAF
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X02144 Genomic RNA. Translation: CAA26085.1.
X02144 Genomic RNA. Translation: CAA26082.1.
PIRiA04195. WMTM8T.
RefSeqiNP_078446.1. NC_002692.1.
NP_078447.1. NC_002692.1.

Genome annotation databases

GeneIDi920838.
920841.
KEGGivg:920838.
vg:920841.

Keywords - Coding sequence diversityi

RNA suppression of termination

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X02144 Genomic RNA. Translation: CAA26085.1.
X02144 Genomic RNA. Translation: CAA26082.1.
PIRiA04195. WMTM8T.
RefSeqiNP_078446.1. NC_002692.1.
NP_078447.1. NC_002692.1.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
3VKWX-ray1.90A666-1111[»]
3WRXX-ray2.50C/D666-1116[»]
3WRYX-ray2.30C/D666-1116[»]
SMRiP03587.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi920838.
920841.
KEGGivg:920838.
vg:920841.

Family and domain databases

Gene3Di3.40.50.300. 1 hit.
InterProiIPR027351. (+)RNA_virus_helicase_core_dom.
IPR002588. Alphavirus-like_MT_dom.
IPR027417. P-loop_NTPase.
IPR007094. RNA-dir_pol_PSvirus.
IPR001788. Tymovirus_RNA-dep_RNA_pol.
[Graphical view]
PfamiPF00978. RdRP_2. 1 hit.
PF01443. Viral_helicase1. 1 hit.
PF01660. Vmethyltransf. 1 hit.
[Graphical view]
SUPFAMiSSF52540. SSF52540. 1 hit.
PROSITEiPS51743. ALPHAVIRUS_MT. 1 hit.
PS51657. PSRV_HELICASE. 1 hit.
PS50507. RDRP_SSRNA_POS. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiRDRP_TOML
AccessioniPrimary (citable) accession number: P03587
Secondary accession number(s): O41352
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: December 1, 2000
Last modified: November 2, 2016
This is version 87 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programViral Protein Annotation Program

Miscellaneousi

Miscellaneous

This protein is translated as a fusion protein by episodic readthrough of a termination codon. When readthrough of the terminator codon TGA occurs between the codons for Gln-1116 and Gln-1118, this results in the addition of the RdRp region to the replicase.

Keywords - Technical termi

3D-structure, Complete proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.