Incidental Mutation 'R2696:Ddx21'
ID 251083
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 040434-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R2696 (G1)
Quality Score 225
Status Not validated
Chromosome 10
Chromosomal Location 62416030-62438060 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) T to C at 62429871 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Histidine to Arginine at position 291 (H291R)
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 possibly damaging
Transcript: ENSMUST00000045866
AA Change: H291R

PolyPhen 2 Score 0.928 (Sensitivity: 0.81; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000042691
Gene: ENSMUSG00000020075
AA Change: H291R

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
Predicted Effect noncoding transcript
Transcript: ENSMUST00000218393
Predicted Effect noncoding transcript
Transcript: ENSMUST00000220060
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.2%
  • 20x: 95.0%
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: 54 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4930562C15Rik A T 16: 4,668,228 (GRCm39) T540S probably benign Het
Acp7 G T 7: 28,314,001 (GRCm39) H369Q probably benign Het
Adgrg3 A G 8: 95,747,702 (GRCm39) N65S probably benign Het
Anln A G 9: 22,272,259 (GRCm39) V620A probably benign Het
Atp10a T A 7: 58,463,366 (GRCm39) S966R probably benign Het
Atp8b3 T A 10: 80,370,017 (GRCm39) Q132L possibly damaging Het
Col4a1 T A 8: 11,285,092 (GRCm39) probably null Het
Dlgap3 A G 4: 127,088,416 (GRCm39) Y4C probably damaging Het
Dnah5 A G 15: 28,278,722 (GRCm39) N1106D probably benign Het
Esyt1 T C 10: 128,352,914 (GRCm39) D662G probably damaging Het
F830016B08Rik T A 18: 60,433,808 (GRCm39) V297E possibly damaging Het
Faf1 T A 4: 109,698,525 (GRCm39) N328K possibly damaging Het
Gdf3 A C 6: 122,583,859 (GRCm39) F169L probably benign Het
Ifi213 G A 1: 173,417,590 (GRCm39) T274I probably benign Het
Igf2r T C 17: 12,914,231 (GRCm39) D1746G possibly damaging Het
Ighv1-75 T C 12: 115,797,826 (GRCm39) K32R probably benign Het
Ipo8 T A 6: 148,698,239 (GRCm39) Q594L probably benign Het
Krt87 A T 15: 101,384,890 (GRCm39) I402N probably benign Het
Med18 G A 4: 132,187,281 (GRCm39) R118W probably damaging Het
Mmrn2 A G 14: 34,120,372 (GRCm39) E414G probably damaging Het
Myo6 A G 9: 80,168,176 (GRCm39) T447A probably benign Het
Ncoa6 T C 2: 155,279,935 (GRCm39) E27G probably benign Het
Ngly1 T C 14: 16,283,439 (GRCm38) L406S possibly damaging Het
Or14j1 T C 17: 38,145,998 (GRCm39) I36T probably benign Het
Or51l4 A G 7: 103,404,735 (GRCm39) I19T probably damaging Het
Phldb1 T C 9: 44,629,585 (GRCm39) Y156C probably damaging Het
Pkd2l1 T A 19: 44,145,708 (GRCm39) T172S probably benign Het
Pknox2 G A 9: 36,820,987 (GRCm39) R292* probably null Het
Plod3 G C 5: 137,017,000 (GRCm39) A50P probably benign Het
Polr3e T C 7: 120,532,600 (GRCm39) L212P probably damaging Het
Ppp4r4 A G 12: 103,547,653 (GRCm39) I215M possibly damaging Het
Psmg2 T C 18: 67,781,288 (GRCm39) Y127H possibly damaging Het
Ptch1 T G 13: 63,672,773 (GRCm39) E944A probably benign Het
Ptp4a1 A T 1: 30,985,213 (GRCm39) M4K probably benign Het
R3hcc1l A T 19: 42,552,427 (GRCm39) I475L possibly damaging Het
Rbp3 C T 14: 33,677,975 (GRCm39) T641M probably damaging Het
Rsf1 GGC GGCGGCGGCGGC 7: 97,229,140 (GRCm39) probably benign Het
Sec63 T A 10: 42,659,522 (GRCm39) I70N probably benign Het
Slc2a5 A C 4: 150,205,203 (GRCm39) K4T probably benign Het
Slc4a3 A G 1: 75,532,119 (GRCm39) Y939C possibly damaging Het
Slc7a15 T C 12: 8,579,345 (GRCm39) *229W probably null Het
Slco1a6 C A 6: 142,058,662 (GRCm39) G206C probably damaging Het
Spata9 A G 13: 76,125,895 (GRCm39) Q126R probably benign Het
Speg A T 1: 75,383,570 (GRCm39) D1186V probably benign Het
Spink5 T G 18: 44,115,359 (GRCm39) M197R probably damaging Het
Stab2 T C 10: 86,697,363 (GRCm39) D1975G probably benign Het
Syngap1 T A 17: 27,176,385 (GRCm39) C224* probably null Het
Ttn T C 2: 76,698,807 (GRCm39) probably benign Het
Txnrd1 G A 10: 82,721,116 (GRCm39) E397K probably benign Het
Ugt2b36 A T 5: 87,237,344 (GRCm39) M313K probably damaging Het
Ulk3 A G 9: 57,497,724 (GRCm39) I74V possibly damaging Het
Zcchc4 T C 5: 52,953,573 (GRCm39) V194A probably damaging Het
Zfp27 C T 7: 29,595,792 (GRCm39) A58T possibly damaging Het
Zfp398 T G 6: 47,843,879 (GRCm39) *512E probably null 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
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
R7704:Ddx21 UTSW 10 62,429,865 (GRCm39) missense probably damaging 1.00
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'- CCTGCCTATCTCAGATACACGG -3'
(R):5'- TCCCTAATTCTGTAGGACCACTAG -3'

Sequencing Primer
(F):5'- CACAGGTTCTGGGATCTGTCC -3'
(R):5'- CTGTAGGACCACTAGTATGACTG -3'
Posted On 2014-12-04