Incidental Mutation 'R5280:Dffa'
ID 404158
Institutional Source Beutler Lab
Gene Symbol Dffa
Ensembl Gene ENSMUSG00000028974
Gene Name DNA fragmentation factor, alpha subunit
Synonyms Dff45, ICAD-S, DFF35, A330085O09Rik, ICAD-L
MMRRC Submission 042840-MU
Accession Numbers
Essential gene? Probably non essential (E-score: 0.119) question?
Stock # R5280 (G1)
Quality Score 225
Status Not validated
Chromosome 4
Chromosomal Location 149188603-149205104 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 149202391 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Asparagine to Serine at position 265 (N265S)
Ref Sequence ENSEMBL: ENSMUSP00000099505 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000030816] [ENSMUST00000103216]
AlphaFold O54786
Predicted Effect probably benign
Transcript: ENSMUST00000030816
SMART Domains Protein: ENSMUSP00000030816
Gene: ENSMUSG00000028974

DomainStartEndE-ValueType
CAD 19 94 1.79e-47 SMART
Pfam:DFF-C 100 264 1.1e-74 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000103216
AA Change: N265S

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)
SMART Domains Protein: ENSMUSP00000099505
Gene: ENSMUSG00000028974
AA Change: N265S

DomainStartEndE-ValueType
CAD 19 94 1.79e-47 SMART
Pfam:DFF-C 100 264 2.2e-80 PFAM
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.7%
  • 10x: 97.3%
  • 20x: 95.5%
Validation Efficiency
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: 33 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adgrf5 C T 17: 43,737,225 (GRCm39) T218I probably damaging Het
Adgrv1 C A 13: 81,545,584 (GRCm39) S5567I possibly damaging Het
Alpk1 T C 3: 127,474,813 (GRCm39) T397A probably benign Het
Atp9a T A 2: 168,481,908 (GRCm39) Y880F possibly damaging Het
Celsr1 T C 15: 85,814,747 (GRCm39) T1905A probably benign Het
Chd8 G A 14: 52,442,582 (GRCm39) A656V possibly damaging Het
Frrs1 A G 3: 116,674,545 (GRCm39) D109G probably benign Het
Gm20821 A T Y: 9,783,963 (GRCm39) K195M probably damaging Het
Ifi207 A T 1: 173,557,870 (GRCm39) N289K unknown Het
Kank1 T C 19: 25,388,669 (GRCm39) F781L probably benign Het
Lrba A T 3: 86,232,329 (GRCm39) M759L possibly damaging Het
Lrp8 A G 4: 107,711,518 (GRCm39) Y307C probably damaging Het
Neb T C 2: 52,037,168 (GRCm39) H6847R probably damaging Het
Or2ag19 G A 7: 106,443,902 (GRCm39) C28Y probably benign Het
Or52ab4 T C 7: 102,987,708 (GRCm39) V149A probably benign Het
Pcdha5 C A 18: 37,094,755 (GRCm39) Y421* probably null Het
Pclo T A 5: 14,590,731 (GRCm39) D1010E unknown Het
Pld2 A T 11: 70,443,585 (GRCm39) D449V probably damaging Het
Ppfia1 C A 7: 144,038,832 (GRCm39) M1032I possibly damaging Het
Prickle2 C A 6: 92,353,191 (GRCm39) L758F probably damaging Het
Sarm1 A G 11: 78,374,302 (GRCm39) V564A probably damaging Het
Taf1b C A 12: 24,599,437 (GRCm39) F398L probably benign Het
Tll2 A G 19: 41,105,696 (GRCm39) I361T possibly damaging Het
Tmem260 T C 14: 48,742,716 (GRCm39) V517A probably benign Het
Usp24 A G 4: 106,198,411 (GRCm39) K106E probably benign Het
Vcan C A 13: 89,838,405 (GRCm39) V2380F probably benign Het
Vmn2r65 A G 7: 84,595,542 (GRCm39) S381P probably damaging Het
Vmn2r73 T C 7: 85,507,155 (GRCm39) D719G probably damaging Het
Wdr5b T C 16: 35,862,202 (GRCm39) V107A probably benign Het
Wdr7 G T 18: 64,120,383 (GRCm39) V1475F probably benign Het
Ythdc2 A G 18: 44,993,688 (GRCm39) D911G probably damaging Het
Zbtb32 T A 7: 30,289,629 (GRCm39) E11V probably damaging Het
Zfp563 T G 17: 33,323,812 (GRCm39) Y136D probably damaging Het
Other mutations in Dffa
AlleleSourceChrCoordTypePredicted EffectPPH Score
R1475:Dffa UTSW 4 149,201,935 (GRCm39) missense probably damaging 1.00
R1672:Dffa UTSW 4 149,190,702 (GRCm39) missense probably damaging 1.00
R1950:Dffa UTSW 4 149,188,839 (GRCm39) missense probably benign 0.05
R3856:Dffa UTSW 4 149,188,708 (GRCm39) start codon destroyed possibly damaging 0.62
R5185:Dffa UTSW 4 149,201,887 (GRCm39) missense probably benign 0.04
R5238:Dffa UTSW 4 149,188,760 (GRCm39) missense probably benign 0.04
R5514:Dffa UTSW 4 149,190,772 (GRCm39) critical splice donor site probably null
R9168:Dffa UTSW 4 149,192,226 (GRCm39) missense probably damaging 1.00
R9649:Dffa UTSW 4 149,202,276 (GRCm39) missense probably benign 0.00
R9651:Dffa UTSW 4 149,190,674 (GRCm39) missense probably damaging 1.00
X0065:Dffa UTSW 4 149,203,588 (GRCm39) missense probably benign 0.00
Predicted Primers PCR Primer
(F):5'- TTGCAGAGTCCAAAGCTGC -3'
(R):5'- TTGGTGACCTGAGGGACTACAC -3'

Sequencing Primer
(F):5'- CCCTCAGTGAAGAGCTGGATG -3'
(R):5'- CTTTAGTCCCAGCACTTAGGAGG -3'
Posted On 2016-07-22