ID   NTP1_MCV1               Reviewed;         634 AA.
AC   Q98267;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1997, sequence version 1.
DT   03-AUG-2022, entry version 96.
DE   RecName: Full=Nucleoside triphosphatase I;
DE            EC=3.6.1.15;
DE   AltName: Full=NPH-I;
DE   AltName: Full=Nucleoside triphosphate phosphohydrolase I;
DE            Short=NPH I;
GN   Name=NPH1; OrderedLocusNames=MC100L;
OS   Molluscum contagiosum virus subtype 1 (MOCV) (MCVI).
OC   Viruses; Varidnaviria; Bamfordvirae; Nucleocytoviricota; Pokkesviricetes;
OC   Chitovirales; Poxviridae; Chordopoxvirinae; Molluscipoxvirus.
OX   NCBI_TaxID=10280;
OH   NCBI_TaxID=9606; Homo sapiens (Human).
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=8670425; DOI=10.1126/science.273.5276.813;
RA   Senkevich T.G., Bugert J.J., Sisler J.R., Koonin E.V., Darai G., Moss B.;
RT   "Genome sequence of a human tumorigenic poxvirus: prediction of specific
RT   host response-evasion genes.";
RL   Science 273:813-816(1996).
CC   -!- FUNCTION: DNA-dependent ATPase required for providing the needed energy
CC       to achieve the termination of early transcripts. Acts in concert with
CC       the RAP94 subunit of the virion RNA polymerase and the capping
CC       enzyme/VTF to catalyze release of UUUUUNU-containing nascent RNA from
CC       the elongation complex. NPH-I must bind ssDNA in order to exhibit
CC       ATPase activity (By similarity). {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a ribonucleoside 5'-triphosphate + H2O = a ribonucleoside 5'-
CC         diphosphate + H(+) + phosphate; Xref=Rhea:RHEA:23680,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:57930, ChEBI:CHEBI:61557; EC=3.6.1.15;
CC   -!- SUBUNIT: Monomer. Interacts (via C-terminus) with RAP94 (via N-
CC       terminus). Interacts with the cap-specific mRNA (nucleoside-2'-O-)-
CC       methyltransferase (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Virion {ECO:0000250}. Note=Virion core enzyme.
CC       {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the helicase family. NPH I subfamily.
CC       {ECO:0000305}.
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DR   EMBL; U60315; AAC55228.1; -; Genomic_DNA.
DR   PIR; T30702; T30702.
DR   RefSeq; NP_044051.1; NC_001731.1.
DR   SMR; Q98267; -.
DR   GeneID; 1487119; -.
DR   KEGG; vg:1487119; -.
DR   Proteomes; UP000000869; Genome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0140658; F:ATP-dependent chromatin remodeler activity; IEA:InterPro.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0017111; F:nucleoside-triphosphatase activity; IEA:InterPro.
DR   GO; GO:0006351; P:transcription, DNA-templated; IEA:InterPro.
DR   Gene3D; 3.40.50.10810; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   InterPro; IPR014001; Helicase_ATP-bd.
DR   InterPro; IPR001650; Helicase_C.
DR   InterPro; IPR013676; NPHI_C.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR038718; SNF2-like_sf.
DR   InterPro; IPR000330; SNF2_N.
DR   Pfam; PF00271; Helicase_C; 1.
DR   Pfam; PF08469; NPHI_C; 1.
DR   Pfam; PF00176; SNF2-rel_dom; 1.
DR   SMART; SM00487; DEXDc; 1.
DR   SMART; SM00490; HELICc; 1.
DR   SUPFAM; SSF52540; SSF52540; 2.
DR   PROSITE; PS51192; HELICASE_ATP_BIND_1; 1.
DR   PROSITE; PS51194; HELICASE_CTER; 1.
PE   3: Inferred from homology;
KW   ATP-binding; DNA-binding; Hydrolase; Nucleotide-binding;
KW   Reference proteome; Transcription; Virion.
FT   CHAIN           1..634
FT                   /note="Nucleoside triphosphatase I"
FT                   /id="PRO_0000099104"
FT   DOMAIN          41..203
FT                   /note="Helicase ATP-binding"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00541"
FT   DOMAIN          355..531
FT                   /note="Helicase C-terminal"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00542"
FT   REGION          456..523
FT                   /note="Binding to the cap-specific mRNA (nucleoside-2'-O-)-
FT                   methyltransferase"
FT                   /evidence="ECO:0000250"
FT   MOTIF           140..143
FT                   /note="DEXH box"
FT   BINDING         54..61
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00541"
SQ   SEQUENCE   634 AA;  72103 MW;  B786EFBA17E12F56 CRC64;
     MNLHAAYIDY ALRRSQHMQA EMSGADNVLL KDYQLFVAKV FLGLDSMNSL LLFQETGVGK
     TVTAVYMLKH LRFLYTSWTV LVLVKKALVE EPWMNTILRF APEVAKDCVF MNYDDQNFHN
     KFFTNIKTVS ARSRIFVIID ECHNFISKSL SREDGRARNT KHVYNFLARH IASSHNKLLC
     LSATPIVNNV REFALLVNLL RPGVLPPQSL FHNKRLLDEA ELVSKLGCIC SYLVHHEASI
     FEDVEGSELF ARKRVLLKYV RMSAKQEDIY HKARAAEFRS GIAVFRVHRR MAATFAFDEF
     PVRKNLTPDE YDALVASLVR DFEALFAGRA LSDATRARLR AGEPIECAAS AEDLSLYQAL
     YEHSCKYAEV CVAILASPGK CLVFEPFINL SGIRIFVKYL EVFGISYIEF SSRTKDTRTR
     AVAEFNRVEN TNGELIKTCV FSLSGNEGIS FLSINDIFIL DMTWNEASLK QIIGRAIRLH
     SHANNPPERR YVNVHFVVAQ LGSGAPSVDD DLLEIIQNKA REFSQLYRVL KLASIEWIHQ
     HCREFAPVDD EAGFRALCSR AIDVTRGAST RRALATGENI WYAFSTLMIT VHPGFKTEDG
     RVYDADGNFL TTMPERPIVR VQGTRLVYIF PELR