Incidental Mutation 'R7704:Ddx21'
ID 594194
Institutional Source Beutler Lab
Gene Symbol Ddx21
Ensembl Gene ENSMUSG00000020075
Gene Name DExD box helicase 21
Synonyms RH II/Gu, D10Wsu42e, RH-II/Gualpha, DEAD (Asp-Glu-Ala-Asp) box polypeptide 21, D10Ertd645e
MMRRC Submission 045765-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R7704 (G1)
Quality Score 225.009
Status Not validated
Chromosome 10
Chromosomal Location 62416030-62438060 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 62429865 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Tyrosine to Cysteine at position 293 (Y293C)
Ref Sequence ENSEMBL: ENSMUSP00000042691 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000045866]
AlphaFold Q9JIK5
PDB Structure Gu_alpha_helicase [X-RAY DIFFRACTION]
Predicted Effect probably damaging
Transcript: ENSMUST00000045866
AA Change: Y293C

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000042691
Gene: ENSMUSG00000020075
AA Change: Y293C

DomainStartEndE-ValueType
low complexity region 24 45 N/A INTRINSIC
low complexity region 87 98 N/A INTRINSIC
low complexity region 107 139 N/A INTRINSIC
internal_repeat_1 140 160 2.96e-8 PROSPERO
low complexity region 162 171 N/A INTRINSIC
low complexity region 199 208 N/A INTRINSIC
internal_repeat_1 214 234 2.96e-8 PROSPERO
DEXDc 277 484 2.76e-56 SMART
HELICc 524 604 1.55e-27 SMART
low complexity region 682 688 N/A INTRINSIC
Pfam:GUCT 692 787 1.6e-33 PFAM
low complexity region 827 843 N/A INTRINSIC
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 99.9%
  • 10x: 99.7%
  • 20x: 98.9%
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 is an antigen recognized by autoimmune antibodies from a patient with watermelon stomach disease. This protein unwinds double-stranded RNA, folds single-stranded RNA, and may play important roles in ribosomal RNA biogenesis, RNA editing, RNA transport, and general transcription. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for an ENU-induced allele exhibit embryonic lethality. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 49 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abcc8 C A 7: 45,756,068 (GRCm39) W1458L probably damaging Het
Actn4 A T 7: 28,596,467 (GRCm39) I676N possibly damaging Het
Adamts10 T C 17: 33,770,126 (GRCm39) C1002R probably damaging Het
Agbl2 A C 2: 90,619,349 (GRCm39) N58T probably benign Het
Akap12 A T 10: 4,306,082 (GRCm39) D1069V probably damaging Het
Bltp2 C A 11: 78,159,570 (GRCm39) Q540K probably benign Het
Cfap65 T A 1: 74,967,527 (GRCm39) T184S probably benign Het
Chd1 T C 17: 15,987,737 (GRCm39) V1517A probably benign Het
CN725425 T A 15: 91,119,993 (GRCm39) V38D possibly damaging Het
Copg1 T A 6: 87,884,940 (GRCm39) L712Q probably benign Het
Ctsf T G 19: 4,906,567 (GRCm39) F165V probably damaging Het
Ddx46 C T 13: 55,821,832 (GRCm39) P839S probably benign Het
Dennd5a A G 7: 109,496,174 (GRCm39) V1164A possibly damaging Het
Dync1h1 T A 12: 110,632,200 (GRCm39) I4490N probably damaging Het
Ecm1 A C 3: 95,643,843 (GRCm39) Y236D probably damaging Het
Fat2 T C 11: 55,175,173 (GRCm39) T1847A probably benign Het
Galc T A 12: 98,175,102 (GRCm39) I567L probably benign Het
Gask1a C T 9: 121,780,151 (GRCm39) probably benign Het
H6pd T C 4: 150,067,360 (GRCm39) D350G probably benign Het
Ifi44 A G 3: 151,438,061 (GRCm39) Y409H probably benign Het
Kdm5a T G 6: 120,404,025 (GRCm39) F1210C probably damaging Het
Kdm5b C T 1: 134,515,669 (GRCm39) R98C probably damaging Het
Lipt1 T A 1: 37,915,043 (GRCm39) C366* probably null Het
Med13 G A 11: 86,236,744 (GRCm39) R138* probably null Het
Mterf1a A G 5: 3,941,845 (GRCm39) C8R probably benign Het
Ncapg2 A T 12: 116,382,897 (GRCm39) I243F probably damaging Het
Nop58 T C 1: 59,744,754 (GRCm39) S304P probably damaging Het
Nsd2 T C 5: 34,028,811 (GRCm39) *167Q probably null Het
Or1e30 T G 11: 73,678,616 (GRCm39) M284R probably damaging Het
Or2t35 T A 14: 14,407,867 (GRCm38) I213N probably damaging Het
Or52ab2 T A 7: 102,969,978 (GRCm39) M120K Het
Pramel29 C T 4: 143,935,091 (GRCm39) V217I possibly damaging Het
Prdm16 C T 4: 154,425,947 (GRCm39) G613R probably damaging Het
Prss46 T C 9: 110,679,065 (GRCm39) S89P probably damaging Het
Scin T C 12: 40,174,687 (GRCm39) N132S possibly damaging Het
Sec14l2 T C 11: 4,058,574 (GRCm39) K196R probably benign Het
Sox17 C A 1: 4,563,895 (GRCm39) probably benign Het
Tango6 A G 8: 107,425,621 (GRCm39) T394A probably benign Het
Tbc1d22a T A 15: 86,250,876 (GRCm39) I398N probably damaging Het
Tdpoz8 A G 3: 92,981,752 (GRCm39) I183V probably benign Het
Tmem8b T C 4: 43,689,461 (GRCm39) V285A probably damaging Het
Tnfrsf11b T A 15: 54,123,497 (GRCm39) T35S probably benign Het
Unc13c T A 9: 73,606,494 (GRCm39) I1289F probably benign Het
Ust C T 10: 8,205,987 (GRCm39) V99I probably benign Het
Vmn1r76 A G 7: 11,664,344 (GRCm39) V290A probably benign Het
Vmn2r50 T C 7: 9,781,665 (GRCm39) N360S probably benign Het
Vmn2r93 T C 17: 18,536,910 (GRCm39) I531T probably benign Het
Zap70 T C 1: 36,818,395 (GRCm39) probably null Het
Zfp932 A G 5: 110,157,630 (GRCm39) N443D probably benign Het
Other mutations in Ddx21
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00709:Ddx21 APN 10 62,434,181 (GRCm39) nonsense probably null
IGL01144:Ddx21 APN 10 62,434,329 (GRCm39) missense unknown
IGL01655:Ddx21 APN 10 62,423,270 (GRCm39) missense probably damaging 0.98
IGL01694:Ddx21 APN 10 62,434,430 (GRCm39) nonsense probably null
IGL01752:Ddx21 APN 10 62,423,286 (GRCm39) missense probably damaging 1.00
IGL02827:Ddx21 APN 10 62,434,153 (GRCm39) missense probably benign 0.04
IGL03140:Ddx21 APN 10 62,429,850 (GRCm39) missense probably damaging 1.00
IGL03248:Ddx21 APN 10 62,427,769 (GRCm39) missense possibly damaging 0.87
R0131:Ddx21 UTSW 10 62,420,531 (GRCm39) missense possibly damaging 0.96
R0555:Ddx21 UTSW 10 62,423,307 (GRCm39) missense probably damaging 1.00
R1437:Ddx21 UTSW 10 62,434,369 (GRCm39) missense unknown
R1780:Ddx21 UTSW 10 62,429,926 (GRCm39) splice site probably benign
R1875:Ddx21 UTSW 10 62,429,847 (GRCm39) missense probably damaging 1.00
R2696:Ddx21 UTSW 10 62,429,871 (GRCm39) missense possibly damaging 0.93
R4639:Ddx21 UTSW 10 62,427,616 (GRCm39) nonsense probably null
R4678:Ddx21 UTSW 10 62,429,782 (GRCm39) missense probably benign 0.06
R4767:Ddx21 UTSW 10 62,427,751 (GRCm39) missense probably damaging 1.00
R4799:Ddx21 UTSW 10 62,423,900 (GRCm39) missense probably damaging 0.98
R5145:Ddx21 UTSW 10 62,423,318 (GRCm39) critical splice acceptor site probably null
R5243:Ddx21 UTSW 10 62,437,992 (GRCm39) start codon destroyed probably null 0.02
R6085:Ddx21 UTSW 10 62,429,866 (GRCm39) missense probably damaging 1.00
R6701:Ddx21 UTSW 10 62,426,470 (GRCm39) missense probably damaging 1.00
R7134:Ddx21 UTSW 10 62,427,634 (GRCm39) missense possibly damaging 0.95
R7517:Ddx21 UTSW 10 62,424,569 (GRCm39) missense probably damaging 0.98
R7555:Ddx21 UTSW 10 62,434,022 (GRCm39) missense probably benign 0.03
R7577:Ddx21 UTSW 10 62,426,449 (GRCm39) missense probably benign 0.19
R8902:Ddx21 UTSW 10 62,434,486 (GRCm39) missense probably benign 0.01
R9126:Ddx21 UTSW 10 62,424,479 (GRCm39) missense probably damaging 1.00
R9344:Ddx21 UTSW 10 62,428,825 (GRCm39) missense possibly damaging 0.66
R9412:Ddx21 UTSW 10 62,429,881 (GRCm39) missense possibly damaging 0.94
R9480:Ddx21 UTSW 10 62,434,652 (GRCm39) missense probably benign
Z1177:Ddx21 UTSW 10 62,423,317 (GRCm39) critical splice acceptor site probably null
Predicted Primers PCR Primer
(F):5'- AGTCTCAAAGATTCACCCCTGC -3'
(R):5'- GGACCACTAGTATGACTGTATGACTG -3'

Sequencing Primer
(F):5'- TGCCTATCTCAGATACACGGAG -3'
(R):5'- ACTGTATGACTGTATTAAAGTTGGGG -3'
Posted On 2019-11-12