Incidental Mutation 'R4767:Ddx21'
ID 366228
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 042408-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R4767 (G1)
Quality Score 225
Status Validated
Chromosome 10
Chromosomal Location 62416030-62438060 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 62427751 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Leucine to Proline at position 384 (L384P)
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: L384P

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000042691
Gene: ENSMUSG00000020075
AA Change: L384P

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
Meta Mutation Damage Score 0.9306 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 96.9%
  • 20x: 94.3%
Validation Efficiency 95% (62/65)
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: 58 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adam19 T C 11: 46,029,804 (GRCm39) probably null Het
Aig1 T C 10: 13,677,602 (GRCm39) N130S probably damaging Het
Alx1 A T 10: 102,861,047 (GRCm39) Y160* probably null Het
Ap4e1 T C 2: 126,902,358 (GRCm39) I755T probably benign Het
Apoc3 C A 9: 46,145,833 (GRCm39) E21* probably null Het
Atp9b G T 18: 80,796,285 (GRCm39) H919Q probably damaging Het
Cemip T G 7: 83,622,514 (GRCm39) Y555S probably damaging Het
Cic T C 7: 24,971,025 (GRCm39) V252A possibly damaging Het
Cracr2a A T 6: 127,588,470 (GRCm39) N210Y probably damaging Het
Crocc2 G A 1: 93,130,578 (GRCm39) R953Q possibly damaging Het
Csnk1d A G 11: 120,859,954 (GRCm39) S318P probably benign Het
Dnah5 C T 15: 28,270,620 (GRCm39) T974I probably benign Het
Duox1 A G 2: 122,163,922 (GRCm39) Y863C possibly damaging Het
Epg5 C A 18: 78,066,498 (GRCm39) P2133T possibly damaging Het
Ephb6 A T 6: 41,591,119 (GRCm39) Q92L possibly damaging Het
Ercc4 C A 16: 12,939,959 (GRCm39) A73D probably damaging Het
Eva1c A T 16: 90,701,235 (GRCm39) Y290F probably damaging Het
Galnt5 T A 2: 57,918,156 (GRCm39) V798E possibly damaging Het
Haus4 T C 14: 54,786,342 (GRCm39) E149G probably damaging Het
Ighv1-13 A G 12: 114,594,556 (GRCm39) Y86C unknown Het
Igkv9-120 G T 6: 68,027,351 (GRCm39) R88S possibly damaging Het
Lama3 T C 18: 12,633,620 (GRCm39) V1584A probably benign Het
Lamb1 A G 12: 31,358,010 (GRCm39) E1119G probably damaging Het
Lao1 T C 4: 118,825,185 (GRCm39) L335P probably damaging Het
Mindy4 A G 6: 55,237,550 (GRCm39) D375G probably damaging Het
Myo5a T C 9: 75,051,358 (GRCm39) I317T probably damaging Het
Nhlrc2 G A 19: 56,558,898 (GRCm39) V128I probably benign Het
Nlrp2 C T 7: 5,331,023 (GRCm39) D458N probably damaging Het
Or1j18 A T 2: 36,624,335 (GRCm39) M1L probably benign Het
Or1o1 T A 17: 37,717,091 (GRCm39) C217* probably null Het
Or5a1 G T 19: 12,097,300 (GRCm39) H247N probably damaging Het
Or8g24 T C 9: 38,989,988 (GRCm39) T18A possibly damaging Het
Or9q2 A T 19: 13,772,409 (GRCm39) C189S probably damaging Het
Parp8 T C 13: 117,005,072 (GRCm39) H663R probably damaging Het
Pax6 T C 2: 105,525,705 (GRCm39) S377P probably benign Het
Pi15 A G 1: 17,672,990 (GRCm39) D63G probably benign Het
Plaa A G 4: 94,474,495 (GRCm39) probably benign Het
Rbm5 C A 9: 107,622,412 (GRCm39) W546C probably damaging Het
Rnf123 C A 9: 107,929,288 (GRCm39) C1257F probably damaging Het
Rnf185 A G 11: 3,382,551 (GRCm39) S45P possibly damaging Het
Sh3bp1 T C 15: 78,788,697 (GRCm39) S241P possibly damaging Het
Slfn8 G A 11: 82,894,023 (GRCm39) A872V possibly damaging Het
Smoc1 G A 12: 81,151,547 (GRCm39) probably null Het
Sox14 A T 9: 99,757,686 (GRCm39) W18R probably damaging Het
Spata31d1a T C 13: 59,848,969 (GRCm39) E1053G probably benign Het
Syne1 T A 10: 5,294,866 (GRCm39) K1246* probably null Het
Tbrg4 A C 11: 6,570,909 (GRCm39) S188A probably benign Het
Thnsl2 A T 6: 71,111,279 (GRCm39) D196E probably damaging Het
Tmem266 C T 9: 55,288,025 (GRCm39) T34I probably damaging Het
Tmem59l C A 8: 70,938,748 (GRCm39) R111L probably benign Het
Tpr T C 1: 150,306,280 (GRCm39) probably benign Het
Trpc6 T C 9: 8,643,687 (GRCm39) S491P probably damaging Het
Tspan10 A T 11: 120,336,992 (GRCm39) N254I probably damaging Het
Ubox5 A T 2: 130,433,814 (GRCm39) L511Q probably damaging Het
Vmn1r183 TATCCATC TATC 7: 23,754,531 (GRCm39) probably null Het
Vmn2r4 C T 3: 64,298,397 (GRCm39) C577Y probably damaging Het
Vmn2r86 A T 10: 130,291,606 (GRCm39) M53K probably benign Het
Zfp948 T A 17: 21,808,569 (GRCm39) I587N possibly damaging 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
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'- GTCCCTTAAATTTGGGGCTTAC -3'
(R):5'- CCACTGTTTCCTGGTGGATC -3'

Sequencing Primer
(F):5'- GGGGCTTACCTTTCTTGTATGCAAC -3'
(R):5'- TGTTAGTGCACTGGCCCAG -3'
Posted On 2015-12-21