Incidental Mutation 'R5185:Dffa'
Institutional Source Beutler Lab
Gene Symbol Dffa
Ensembl Gene ENSMUSG00000028974
Gene NameDNA fragmentation factor, alpha subunit
SynonymsICAD-L, A330085O09Rik, ICAD-S, DFF35, Dff45
MMRRC Submission 042764-MU
Accession Numbers
Is this an essential gene? Probably non essential (E-score: 0.110) question?
Stock #R5185 (G1)
Quality Score225
Status Validated
Chromosomal Location149104146-149120647 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) C to A at 149117430 bp
Amino Acid Change Alanine to Glutamic Acid at position 155 (A155E)
Ref Sequence ENSEMBL: ENSMUSP00000099505 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000030816] [ENSMUST00000103216]
Predicted Effect probably benign
Transcript: ENSMUST00000030816
AA Change: A155E

PolyPhen 2 Score 0.044 (Sensitivity: 0.94; Specificity: 0.83)
SMART Domains Protein: ENSMUSP00000030816
Gene: ENSMUSG00000028974
AA Change: A155E

CAD 19 94 1.79e-47 SMART
Pfam:DFF-C 100 264 1.1e-74 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000103216
AA Change: A155E

PolyPhen 2 Score 0.044 (Sensitivity: 0.94; Specificity: 0.83)
SMART Domains Protein: ENSMUSP00000099505
Gene: ENSMUSG00000028974
AA Change: A155E

CAD 19 94 1.79e-47 SMART
Pfam:DFF-C 100 264 2.2e-80 PFAM
Meta Mutation Damage Score 0.0898 question?
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.7%
  • 10x: 97.3%
  • 20x: 95.4%
Validation Efficiency 95% (70/74)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Apoptosis is a cell death process that removes toxic and/or useless cells during mammalian development. The apoptotic process is accompanied by shrinkage and fragmentation of the cells and nuclei and degradation of the chromosomal DNA into nucleosomal units. DNA fragmentation factor (DFF) is a heterodimeric protein of 40-kD (DFFB) and 45-kD (DFFA) subunits. DFFA is the substrate for caspase-3 and triggers DNA fragmentation during apoptosis. DFF becomes activated when DFFA is cleaved by caspase-3. The cleaved fragments of DFFA dissociate from DFFB, the active component of DFF. DFFB has been found to trigger both DNA fragmentation and chromatin condensation during apoptosis. Two alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
PHENOTYPE: Mice homozygous for a knock-out allele show increased resistance to apoptosis in response to several apoptotic stimuli, enhanced spatial learning and memory, higher granule cell density and total granule cell number in the dentate gyrus, and resistance to kainic acid-induced CA3 neuronal cell death. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 67 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acsf2 T C 11: 94,562,911 Y408C probably damaging Het
Aox4 T C 1: 58,254,318 L943S probably damaging Het
Ap1g1 G A 8: 109,863,326 probably benign Het
Arsb T C 13: 93,794,159 S212P probably damaging Het
Arsi A G 18: 60,916,912 N289S probably damaging Het
Atp6v1h T A 1: 5,095,642 F72I probably damaging Het
Atxn7 T C 14: 14,090,063 I336T probably benign Het
Bak1 G A 17: 27,022,748 P65L possibly damaging Het
Bcl6 A T 16: 23,972,947 M219K possibly damaging Het
Brd3 T C 2: 27,462,448 K157E probably damaging Het
Ccdc171 T G 4: 83,663,655 S674A possibly damaging Het
Cfap43 A G 19: 47,780,394 I737T probably benign Het
Cul9 A T 17: 46,525,832 V1089D possibly damaging Het
Dnhd1 G A 7: 105,703,209 R2523Q probably damaging Het
Efcab12 T A 6: 115,823,490 M191L probably benign Het
Efl1 T C 7: 82,772,499 L1018P probably damaging Het
Fcho1 A G 8: 71,714,956 probably benign Het
Fndc3b T A 3: 27,457,070 T764S probably benign Het
Gm29125 T C 1: 80,384,231 noncoding transcript Het
Gm5108 A G 5: 67,944,610 probably benign Het
Gm9949 T G 18: 62,180,565 probably benign Het
Golgb1 T C 16: 36,875,141 probably benign Het
Gpd2 T C 2: 57,340,204 Y323H probably damaging Het
Grip1 T G 10: 119,931,259 D96E probably benign Het
Hmcn1 T C 1: 150,656,741 I3132V probably benign Het
Hsd17b1 T C 11: 101,080,198 W327R possibly damaging Het
Htra2 G A 6: 83,054,242 P62L probably benign Het
Kdr A T 5: 75,952,417 probably null Het
Kif14 T A 1: 136,527,469 C1626* probably null Het
Kmt2a A T 9: 44,820,246 probably benign Het
Krt15 T C 11: 100,133,433 T321A probably damaging Het
Lactbl1 A T 4: 136,631,045 H109L probably benign Het
Lilra6 T A 7: 3,914,636 H120L probably benign Het
Lpcat2 G A 8: 92,869,737 S134N probably benign Het
Mpp4 T C 1: 59,125,583 D465G probably benign Het
Naip2 A T 13: 100,189,351 D16E probably damaging Het
Nek5 C T 8: 22,083,381 A520T possibly damaging Het
Nfatc2 A G 2: 168,570,707 F132L possibly damaging Het
Nlrp3 C A 11: 59,565,084 T902N probably benign Het
Olfr1097 T C 2: 86,890,602 D191G probably benign Het
Olfr1230 A T 2: 89,296,387 H294Q probably benign Het
Olfr149 A T 9: 39,701,876 W298R probably benign Het
Olfr58 T C 9: 19,783,376 M81T probably damaging Het
Pcdhb16 T C 18: 37,480,089 S701P possibly damaging Het
Phf7 A G 14: 31,248,037 probably null Het
Plpp4 G A 7: 129,316,304 V68M probably damaging Het
Pnma2 A T 14: 66,916,129 M1L possibly damaging Het
Pnmal2 A T 7: 16,945,976 D295V probably damaging Het
Rad21l T C 2: 151,657,462 D270G probably benign Het
Ralgapa2 C A 2: 146,388,486 probably null Het
Rasal3 A T 17: 32,396,790 L334Q probably damaging Het
Rfx4 G T 10: 84,863,250 R240L probably damaging Het
Rnf19b T A 4: 129,083,920 C642* probably null Het
Slc28a2 G A 2: 122,458,194 E594K probably benign Het
Spata31 G T 13: 64,917,526 W15L possibly damaging Het
Spink5 T C 18: 44,015,644 S925P probably damaging Het
Svep1 C T 4: 58,084,534 G1865S probably damaging Het
Tg T C 15: 66,773,474 L791P probably damaging Het
Thbs4 A C 13: 92,775,167 V247G probably damaging Het
Tpcn2 A T 7: 145,255,454 F705Y probably damaging Het
Try10 A T 6: 41,356,549 H76L probably damaging Het
Ttn C T 2: 76,939,221 V2695I probably damaging Het
Tut1 C A 19: 8,955,450 T49N probably benign Het
Vmn1r17 A G 6: 57,360,843 V130A probably benign Het
Xdh G A 17: 73,925,011 R235C probably damaging Het
Yipf4 A G 17: 74,492,475 D70G probably null Het
Zfp108 G T 7: 24,260,738 K251N probably benign Het
Other mutations in Dffa
AlleleSourceChrCoordTypePredicted EffectPPH Score
R1475:Dffa UTSW 4 149117478 missense probably damaging 1.00
R1672:Dffa UTSW 4 149106245 missense probably damaging 1.00
R1950:Dffa UTSW 4 149104382 missense probably benign 0.05
R3856:Dffa UTSW 4 149104251 start codon destroyed possibly damaging 0.62
R5238:Dffa UTSW 4 149104303 missense probably benign 0.04
R5280:Dffa UTSW 4 149117934 missense probably benign 0.00
R5514:Dffa UTSW 4 149106315 critical splice donor site probably null
X0065:Dffa UTSW 4 149119131 missense probably benign 0.00
Predicted Primers PCR Primer

Sequencing Primer
Posted On2016-07-06