Incidental Mutation 'R5361:Ddx20'
ID 422795
Institutional Source Beutler Lab
Gene Symbol Ddx20
Ensembl Gene ENSMUSG00000027905
Gene Name DEAD box helicase 20
Synonyms DEAD (Asp-Glu-Ala-Asp) box polypeptide 20, GEMIN3, dp103
MMRRC Submission 042940-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R5361 (G1)
Quality Score 225
Status Not validated
Chromosome 3
Chromosomal Location 105585586-105594890 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to A at 105590825 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glutamic Acid to Valine at position 197 (E197V)
Ref Sequence ENSEMBL: ENSMUSP00000088176 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000090680] [ENSMUST00000200078]
AlphaFold Q9JJY4
Predicted Effect probably damaging
Transcript: ENSMUST00000090680
AA Change: E197V

PolyPhen 2 Score 0.963 (Sensitivity: 0.78; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000088176
Gene: ENSMUSG00000027905
AA Change: E197V

DomainStartEndE-ValueType
low complexity region 20 33 N/A INTRINSIC
DEXDc 82 280 7.47e-44 SMART
HELICc 324 405 2.8e-25 SMART
low complexity region 434 445 N/A INTRINSIC
low complexity region 646 668 N/A INTRINSIC
Predicted Effect noncoding transcript
Transcript: ENSMUST00000132008
Predicted Effect probably benign
Transcript: ENSMUST00000200078
SMART Domains Protein: ENSMUSP00000142675
Gene: ENSMUSG00000027905

DomainStartEndE-ValueType
low complexity region 20 33 N/A INTRINSIC
Pfam:DEAD 87 134 7.6e-5 PFAM
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.7%
  • 10x: 97.6%
  • 20x: 96.1%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of this family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a DEAD box protein, which has an ATPase activity and is a component of the survival of motor neurons (SMN) complex. This protein interacts directly with SMN, the spinal muscular atrophy gene product, and may play a catalytic role in the function of the SMN complex on RNPs. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a null allele fail to implant and develop past the 2-cell stage. Heterozygous null females are viable, healthy and fertile but show increased ovary weight, a greater number of empty follicles, a prolonged estrous phase, and reduced nocturnal and stress-induced serum ACTH levels. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 58 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700017B05Rik T A 9: 57,164,468 (GRCm39) K635N probably damaging Het
Afg3l2 G T 18: 67,554,329 (GRCm39) L458M probably damaging Het
Ahnak T A 19: 8,992,705 (GRCm39) M4663K possibly damaging Het
C4b T A 17: 34,960,212 (GRCm39) T280S probably benign Het
Ccdc166 A G 15: 75,852,869 (GRCm39) V366A probably benign Het
Cdh23 A G 10: 60,493,044 (GRCm39) probably null Het
Col7a1 A G 9: 108,792,292 (GRCm39) T1281A unknown Het
Cul9 TTCCTCCTCCTCCTCCTCCTCCTC TTCCTCCTCCTCCTCCTCCTC 17: 46,811,775 (GRCm39) probably benign Het
Dbndd1 T A 8: 124,233,484 (GRCm39) D127V probably damaging Het
Dennd10 A G 19: 60,814,324 (GRCm39) M96V probably benign Het
Dnm3 A G 1: 161,838,471 (GRCm39) S826P probably damaging Het
Dnmt3a T C 12: 3,945,643 (GRCm39) V24A probably benign Het
Dop1b C A 16: 93,567,392 (GRCm39) A1273E probably damaging Het
Dsg1c T C 18: 20,416,703 (GRCm39) V868A possibly damaging Het
Dtx4 A G 19: 12,462,626 (GRCm39) probably null Het
Elovl4 A G 9: 83,672,154 (GRCm39) L55P possibly damaging Het
Fbxo40 T A 16: 36,789,914 (GRCm39) T399S possibly damaging Het
Fkbpl G A 17: 34,864,303 (GRCm39) A24T probably benign Het
Gm14399 T C 2: 174,973,371 (GRCm39) E96G probably damaging Het
Gm14496 T G 2: 181,642,147 (GRCm39) V606G probably benign Het
Gpr156 A G 16: 37,826,087 (GRCm39) E768G probably damaging Het
Grm5 A T 7: 87,723,704 (GRCm39) T665S probably damaging Het
Hsdl2 A G 4: 59,592,301 (GRCm39) probably benign Het
Htt T C 5: 35,064,928 (GRCm39) V3047A possibly damaging Het
Igkv3-2 A T 6: 70,676,011 (GRCm39) T107S probably benign Het
Insyn2b G A 11: 34,352,788 (GRCm39) E277K probably damaging Het
Itih2 T A 2: 10,101,272 (GRCm39) T899S probably benign Het
Lhcgr T A 17: 89,050,281 (GRCm39) Y415F probably damaging Het
Ltbr G A 6: 125,289,757 (GRCm39) R146W probably damaging Het
Med4 C A 14: 73,747,553 (GRCm39) S18* probably null Het
Nefl T C 14: 68,322,088 (GRCm39) V226A probably damaging Het
Nploc4 T A 11: 120,275,389 (GRCm39) N516Y probably damaging Het
Or1o4 A G 17: 37,590,501 (GRCm39) V270A probably benign Het
Or6c66 A T 10: 129,461,601 (GRCm39) F110I probably damaging Het
Otx1 C A 11: 21,947,037 (GRCm39) A91S probably damaging Het
Pcdha3 T G 18: 37,079,752 (GRCm39) L165V possibly damaging Het
Pcdhb12 T A 18: 37,570,099 (GRCm39) V415D probably damaging Het
Pcdhga10 T C 18: 37,880,503 (GRCm39) I88T probably damaging Het
Pigyl T A 9: 22,069,292 (GRCm39) M1K probably null Het
Prr27 T C 5: 87,991,203 (GRCm39) S272P probably damaging Het
Prss3 C T 6: 41,350,780 (GRCm39) D237N probably benign Het
Pstpip2 A G 18: 77,958,078 (GRCm39) D150G probably damaging Het
Robo4 T A 9: 37,324,674 (GRCm39) D909E probably benign Het
Serpinb3c A T 1: 107,204,661 (GRCm39) Y28* probably null Het
Slc26a3 T C 12: 31,500,980 (GRCm39) probably null Het
Slc6a1 A T 6: 114,279,493 (GRCm39) I91F probably benign Het
Smcr8 T G 11: 60,669,118 (GRCm39) Y89D probably damaging Het
Sspo T A 6: 48,443,247 (GRCm39) M1898K probably benign Het
Tbl1xr1 T A 3: 22,246,233 (GRCm39) I251K probably damaging Het
Thbs4 C T 13: 92,913,501 (GRCm39) D140N probably benign Het
Tmbim6 G A 15: 99,303,633 (GRCm39) A108T probably benign Het
Trim10 T G 17: 37,186,328 (GRCm39) L301R probably benign Het
Trpm7 A T 2: 126,671,161 (GRCm39) I607N possibly damaging Het
Vmn2r9 T A 5: 108,995,929 (GRCm39) I240F probably damaging Het
Xpot T A 10: 121,436,765 (GRCm39) I873F possibly damaging Het
Zfhx4 G A 3: 5,464,267 (GRCm39) S1475N probably damaging Het
Zfp712 A G 13: 67,189,079 (GRCm39) S483P possibly damaging Het
Zswim7 A T 11: 62,158,373 (GRCm39) H122Q probably benign Het
Other mutations in Ddx20
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01583:Ddx20 APN 3 105,593,986 (GRCm39) missense probably damaging 1.00
IGL01832:Ddx20 APN 3 105,586,327 (GRCm39) missense probably damaging 0.99
IGL02072:Ddx20 APN 3 105,587,943 (GRCm39) missense probably damaging 1.00
IGL02821:Ddx20 APN 3 105,586,593 (GRCm39) missense probably benign 0.00
R0520:Ddx20 UTSW 3 105,594,692 (GRCm39) missense probably benign
R0600:Ddx20 UTSW 3 105,586,396 (GRCm39) missense probably damaging 1.00
R1648:Ddx20 UTSW 3 105,586,504 (GRCm39) missense probably benign 0.08
R1817:Ddx20 UTSW 3 105,585,896 (GRCm39) nonsense probably null
R1843:Ddx20 UTSW 3 105,586,398 (GRCm39) missense probably benign 0.00
R1922:Ddx20 UTSW 3 105,585,900 (GRCm39) missense probably damaging 1.00
R1955:Ddx20 UTSW 3 105,586,878 (GRCm39) missense possibly damaging 0.79
R1993:Ddx20 UTSW 3 105,586,660 (GRCm39) nonsense probably null
R2215:Ddx20 UTSW 3 105,587,656 (GRCm39) splice site probably benign
R2241:Ddx20 UTSW 3 105,590,521 (GRCm39) nonsense probably null
R2315:Ddx20 UTSW 3 105,586,015 (GRCm39) missense probably damaging 1.00
R4156:Ddx20 UTSW 3 105,586,249 (GRCm39) missense probably benign 0.41
R4790:Ddx20 UTSW 3 105,590,485 (GRCm39) missense probably benign 0.02
R4962:Ddx20 UTSW 3 105,587,921 (GRCm39) missense possibly damaging 0.95
R5072:Ddx20 UTSW 3 105,590,191 (GRCm39) critical splice donor site probably null
R5622:Ddx20 UTSW 3 105,586,327 (GRCm39) missense probably damaging 0.99
R5936:Ddx20 UTSW 3 105,587,903 (GRCm39) missense possibly damaging 0.96
R6007:Ddx20 UTSW 3 105,590,736 (GRCm39) missense possibly damaging 0.68
R6192:Ddx20 UTSW 3 105,586,036 (GRCm39) missense probably benign
R6916:Ddx20 UTSW 3 105,587,929 (GRCm39) missense probably damaging 1.00
R6957:Ddx20 UTSW 3 105,591,626 (GRCm39) missense probably benign 0.30
R6970:Ddx20 UTSW 3 105,587,674 (GRCm39) missense probably damaging 1.00
R8366:Ddx20 UTSW 3 105,594,695 (GRCm39) missense probably benign 0.37
R9176:Ddx20 UTSW 3 105,586,158 (GRCm39) missense probably benign 0.01
R9221:Ddx20 UTSW 3 105,587,685 (GRCm39) nonsense probably null
R9326:Ddx20 UTSW 3 105,591,735 (GRCm39) missense probably damaging 1.00
R9336:Ddx20 UTSW 3 105,585,903 (GRCm39) missense possibly damaging 0.93
Predicted Primers PCR Primer
(F):5'- GCCAACATCTGCTTACTCGC -3'
(R):5'- AAGATTACTTAGACCGTTAGGTGG -3'

Sequencing Primer
(F):5'- TGCTTACTCGCAGGTAAAGAG -3'
(R):5'- TGGTATGTAACGGTACACTGTAAG -3'
Posted On 2016-08-04