Incidental Mutation 'R0032:Dicer1'
ID15284
Institutional Source Beutler Lab
Gene Symbol Dicer1
Ensembl Gene ENSMUSG00000041415
Gene Namedicer 1, ribonuclease type III
SynonymsD12Ertd7e
MMRRC Submission 038326-MU
Accession Numbers

Ncbi RefSeq: NM_148948.2; MGI:2177178

Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R0032 (G1) of strain 731
Quality Score
Status Validated
Chromosome12
Chromosomal Location104687742-104751952 bp(-) (GRCm38)
Type of Mutationnonsense
DNA Base Change (assembly) A to T at 104704798 bp
ZygosityHeterozygous
Amino Acid Change Leucine to Stop codon at position 995 (L995*)
Ref Sequence ENSEMBL: ENSMUSP00000043676 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000041987]
Predicted Effect probably null
Transcript: ENSMUST00000041987
AA Change: L995*
SMART Domains Protein: ENSMUSP00000043676
Gene: ENSMUSG00000041415
AA Change: L995*

DomainStartEndE-ValueType
DEXDc 30 233 5.14e-24 SMART
low complexity region 403 419 N/A INTRINSIC
HELICc 449 546 3.15e-10 SMART
Pfam:Dicer_dimer 620 707 1.4e-25 PFAM
low complexity region 713 723 N/A INTRINSIC
PAZ 881 1056 1.67e-48 SMART
Blast:PAZ 1080 1129 2e-8 BLAST
RIBOc 1285 1582 1.83e-35 SMART
RIBOc 1665 1831 5.97e-49 SMART
DSRM 1834 1897 6.89e-9 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000222115
Predicted Effect noncoding transcript
Transcript: ENSMUST00000222519
Predicted Effect noncoding transcript
Transcript: ENSMUST00000222528
Meta Mutation Damage Score 0.9755 question?
Coding Region Coverage
  • 1x: 80.9%
  • 3x: 73.4%
  • 10x: 52.4%
  • 20x: 32.5%
Validation Efficiency 94% (87/93)
MGI Phenotype Strain: 3589209; 3809262; 2681012; 3576927
Lethality: E7-E14
FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes a protein possessing an RNA helicase motif containing a DEXH box in its amino terminus and an RNA motif in the carboxy terminus. The encoded protein functions as a ribonuclease and is required by the RNA interference and small temporal RNA (stRNA) pathways to produce the active small RNA component that represses gene expression. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2010]
PHENOTYPE: Mutation of this locus results in arrest of early embryonic development. [provided by MGI curators]
Allele List at MGI

All alleles(25) : Targeted(14) Gene trapped(11)

Other mutations in this stock
Total: 40 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acss3 T A 10: 107,123,295 T97S probably benign Het
Adcy1 T C 11: 7,144,729 S552P possibly damaging Het
C2cd3 T A 7: 100,444,445 probably benign Het
Cd86 A T 16: 36,620,873 S77R probably damaging Het
Cfap54 C T 10: 92,932,697 R188H probably benign Het
Cpne8 T A 15: 90,569,568 probably benign Het
Ctsg T A 14: 56,101,739 I21F probably damaging Het
Cyp2j9 T G 4: 96,568,806 N476T possibly damaging Het
Dcaf4 G A 12: 83,535,988 probably benign Het
Dennd4c T C 4: 86,828,150 probably null Het
Dnah10 A G 5: 124,800,891 K2623R possibly damaging Het
Dnajc21 G T 15: 10,461,877 T146K probably benign Het
Dnmbp A C 19: 43,902,719 L203R probably damaging Het
Eif4g1 C T 16: 20,685,898 S829F probably damaging Het
Enkur T C 2: 21,189,304 I153V probably benign Het
Erf T C 7: 25,245,075 Y277C possibly damaging Het
Fstl5 T A 3: 76,648,435 probably benign Het
Fuk G A 8: 110,892,103 T341M possibly damaging Het
Grm3 A G 5: 9,511,452 probably null Het
Il11ra1 A G 4: 41,768,187 E366G probably damaging Het
Ipo8 A G 6: 148,810,711 C261R probably damaging Het
Itga11 T C 9: 62,774,095 F998L probably benign Het
Krt74 T A 15: 101,761,452 noncoding transcript Het
Me2 T G 18: 73,794,525 M219L probably benign Het
Mlh3 A G 12: 85,245,749 probably benign Het
Nfx1 T A 4: 41,015,321 V842E probably benign Het
Oma1 T A 4: 103,366,012 S465T possibly damaging Het
Opa1 A T 16: 29,615,069 H574L probably damaging Het
Pcsk5 T C 19: 17,564,815 N804S possibly damaging Het
Pde4a C A 9: 21,201,432 probably benign Het
Pilra T A 5: 137,831,265 D179V probably damaging Het
Piwil1 G A 5: 128,743,280 S247N probably benign Het
Prss58 T G 6: 40,895,699 T158P probably benign Het
Slc35e3 T C 10: 117,744,932 M156V probably benign Het
Slit2 G A 5: 48,256,856 R938Q probably damaging Het
Syt8 T C 7: 142,439,189 V152A probably benign Het
Tppp2 G T 14: 51,919,409 R81L possibly damaging Het
Trpc3 A G 3: 36,644,256 I618T probably damaging Het
Zc3h4 T A 7: 16,434,640 D891E unknown Het
Zfp120 A T 2: 150,117,592 V270E possibly damaging Het
Other mutations in Dicer1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00943:Dicer1 APN 12 104696772 missense possibly damaging 0.93
IGL01061:Dicer1 APN 12 104706327 missense probably null 0.75
IGL01527:Dicer1 APN 12 104691610 nonsense probably null
IGL01597:Dicer1 APN 12 104705210 nonsense probably null
IGL01636:Dicer1 APN 12 104722241 missense probably damaging 1.00
IGL01717:Dicer1 APN 12 104702787 nonsense probably null
IGL01765:Dicer1 APN 12 104706740 missense probably damaging 1.00
IGL01871:Dicer1 APN 12 104704180 missense probably damaging 1.00
IGL02316:Dicer1 APN 12 104702553 missense probably damaging 1.00
IGL02317:Dicer1 APN 12 104697020 missense probably damaging 1.00
IGL02539:Dicer1 APN 12 104697035 missense probably damaging 0.97
IGL02544:Dicer1 APN 12 104714832 missense probably damaging 1.00
IGL02664:Dicer1 APN 12 104705129 missense probably damaging 1.00
IGL02667:Dicer1 APN 12 104714906 missense probably damaging 1.00
IGL03353:Dicer1 APN 12 104713107 missense probably damaging 1.00
IGL03377:Dicer1 APN 12 104712197 missense probably damaging 0.98
everest UTSW 12 104705128 missense probably damaging 1.00
PIT4480001:Dicer1 UTSW 12 104696544 missense probably benign
R0032:Dicer1 UTSW 12 104704798 nonsense probably null
R0219:Dicer1 UTSW 12 104692125 critical splice donor site probably null
R0242:Dicer1 UTSW 12 104702451 missense probably benign 0.02
R0242:Dicer1 UTSW 12 104702451 missense probably benign 0.02
R0385:Dicer1 UTSW 12 104704174 missense probably damaging 1.00
R0402:Dicer1 UTSW 12 104731064 missense probably benign 0.04
R0426:Dicer1 UTSW 12 104702542 missense probably damaging 1.00
R0453:Dicer1 UTSW 12 104702630 missense probably benign
R0502:Dicer1 UTSW 12 104705060 missense probably damaging 1.00
R0507:Dicer1 UTSW 12 104691658 missense probably damaging 1.00
R0511:Dicer1 UTSW 12 104702841 missense possibly damaging 0.95
R0523:Dicer1 UTSW 12 104702491 missense probably damaging 1.00
R0559:Dicer1 UTSW 12 104706301 missense probably damaging 1.00
R0600:Dicer1 UTSW 12 104706864 missense probably damaging 1.00
R0707:Dicer1 UTSW 12 104706885 missense probably damaging 1.00
R1225:Dicer1 UTSW 12 104691607 missense probably damaging 0.98
R1351:Dicer1 UTSW 12 104729142 missense probably damaging 0.99
R1449:Dicer1 UTSW 12 104729243 missense possibly damaging 0.85
R1575:Dicer1 UTSW 12 104721969 critical splice donor site probably null
R1642:Dicer1 UTSW 12 104713156 missense probably damaging 1.00
R1651:Dicer1 UTSW 12 104708805 missense probably damaging 1.00
R1658:Dicer1 UTSW 12 104700414 missense probably benign
R1815:Dicer1 UTSW 12 104722151 missense probably damaging 1.00
R1816:Dicer1 UTSW 12 104722151 missense probably damaging 1.00
R1927:Dicer1 UTSW 12 104702884 missense possibly damaging 0.91
R2113:Dicer1 UTSW 12 104713214 missense probably damaging 1.00
R2129:Dicer1 UTSW 12 104722031 missense probably damaging 1.00
R2157:Dicer1 UTSW 12 104702949 missense probably benign 0.17
R2202:Dicer1 UTSW 12 104731038 missense probably damaging 0.98
R2203:Dicer1 UTSW 12 104731038 missense probably damaging 0.98
R2243:Dicer1 UTSW 12 104730188 missense probably damaging 0.99
R4237:Dicer1 UTSW 12 104729228 missense possibly damaging 0.48
R4419:Dicer1 UTSW 12 104705114 missense probably damaging 1.00
R4482:Dicer1 UTSW 12 104706277 missense probably damaging 1.00
R4564:Dicer1 UTSW 12 104704751 nonsense probably null
R4776:Dicer1 UTSW 12 104692446 missense probably damaging 0.99
R4834:Dicer1 UTSW 12 104696591 missense probably benign 0.44
R4904:Dicer1 UTSW 12 104713066 missense probably benign
R5202:Dicer1 UTSW 12 104694731 nonsense probably null
R5272:Dicer1 UTSW 12 104704240 missense probably damaging 1.00
R5363:Dicer1 UTSW 12 104703151 missense probably damaging 1.00
R5717:Dicer1 UTSW 12 104705128 missense probably damaging 1.00
R6381:Dicer1 UTSW 12 104696462 missense probably benign 0.00
R6479:Dicer1 UTSW 12 104696723 missense probably damaging 0.97
R6956:Dicer1 UTSW 12 104731023 missense probably damaging 1.00
R7234:Dicer1 UTSW 12 104708849 missense probably damaging 1.00
R7401:Dicer1 UTSW 12 104712278 missense probably benign
R7407:Dicer1 UTSW 12 104722351 nonsense probably null
R7471:Dicer1 UTSW 12 104694710 missense probably damaging 1.00
R7768:Dicer1 UTSW 12 104706697 missense probably damaging 0.99
R7831:Dicer1 UTSW 12 104708800 missense probably damaging 1.00
R7914:Dicer1 UTSW 12 104708800 missense probably damaging 1.00
R7998:Dicer1 UTSW 12 104704069 missense not run
R8010:Dicer1 UTSW 12 104692132 missense not run
R8061:Dicer1 UTSW 12 104702818 nonsense probably null
X0018:Dicer1 UTSW 12 104696934 missense probably benign 0.00
Z1176:Dicer1 UTSW 12 104731020 missense not run
Protein Function and Prediction

Dicer1 encodes Dicer, a DEXH-box RNA helicase of the ribonuclease III family and functions in the generation of microRNAs (miRNAs) and small interfering RNAs (siRNAs), small noncoding RNAs that posttranscriptionally regulate genes (1-4). Dicer also interacts with TAR RNA-binding protein (TRBP) during RNA interference (2;5;6). The Dicer-TRBP complex binds to double-stranded RNA subsequently causing cleavage and the generation of siRNAs and miRNAs (2). One of the two strands of the siRNA/miRNA are than handed to the Argonaute (Ago) protein in the RNA-induced silencing complex (RISC). In the embryo, Dicer is essential for embryonic patterning and morphogenesis.  In addition, Dicer functions in the proper morphogenesis of the vertebrate limb (4).

Expression/Localization

Dicer1 expression was detected in brain, heart, lung, liver, pancreas, kidney, and placenta, but not in skeletal muscle (1). Matsuda et al. suggest that Dicer1 is ubiquitously expressed, albeit at variable levels (1).

Background

Mutations in DICER1 are linked to Goiter, multinodular 1, with or without Sertoli-Leydig cell tumors [OMIM: #138800; (7)] and Pleuropulmonary blastoma [OMIM: #601200; (8)]. Multinodular goider is a common disorder characterized by nodular enlargement of the thyroid gland; some individuals may also develop Sertoli-Leydig cell tumors, usually of the ovary (7). Pleuropulmonary blastoma is a rare pediatric tumor of the lung that arises during fetal lung development and is often part of an inherited cancer syndrome (8).

 

Mice homozygous for a null allele survive until embryonic day (E) 7.5, before axis formation (9).

 

Dicer1tm1.1Bdh/tm1.1Bdh; MGI:3589209

involves: 129

Homozygotes for this conditional null allele are embryonic lethal by E7.5 (4).

 

Dicer1tm1.1Snj/tm1.1Snj; MGI:3809262

involves: 129S7/SvEvBrd * C57BL/6

Homozygotes for this null allele are embryonic lethal by E7.5 (10).

 

Dicer1tm1Ghan/tm1Ghan; MGI:2681012

involves: 129S7/SvEvBrd

Homozygotes for this null allele are embryonic lethal by E7.5 (9).

 

Dicer1tm1Gz/tm1Gz; MGI:3576927

involves: 129P2/OlaHsd * C57BL/6

Homozygotes are lethal between E12.5 and E14.5 and blood vessels are thin and poorly developed (11).

 

Dicer1Gt(RRF266)Byg/Gt(RRF266)Byg; MGI:3719397

involves: 129P2/OlaHsd * C57BL/6

Homozygous animals exhibit partial perinatal lethality and have defects in angiogenesis (12;13). Mice also have decreased susceptibility to choriomemingitis virus, but higher susceptibility to vesicular stomatitis virus (VSV) or herpes simplex type 1 (HSV-1) (13).

Putative Mechanism


 

References
Posted On2012-12-17
Science WriterAnne Murray