Incidental Mutation 'R2187:Fxn'
Institutional Source Beutler Lab
Gene Symbol Fxn
Ensembl Gene ENSMUSG00000059363
Gene Namefrataxin
MMRRC Submission 040189-MU
Accession Numbers
Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R2187 (G1)
Quality Score117
Status Not validated
Chromosomal Location24261453-24280605 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to A at 24280489 bp
Amino Acid Change Asparagine to Isoleucine at position 26 (N26I)
Ref Sequence ENSEMBL: ENSMUSP00000117047 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000081333] [ENSMUST00000123684]
Predicted Effect probably benign
Transcript: ENSMUST00000081333
AA Change: N26I

PolyPhen 2 Score 0.117 (Sensitivity: 0.93; Specificity: 0.86)
SMART Domains Protein: ENSMUSP00000080081
Gene: ENSMUSG00000059363
AA Change: N26I

Frataxin_Cyay 87 198 1.61e-52 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000123684
AA Change: N26I

PolyPhen 2 Score 0.341 (Sensitivity: 0.90; Specificity: 0.89)
SMART Domains Protein: ENSMUSP00000117047
Gene: ENSMUSG00000059363
AA Change: N26I

PDB:3T3T|D 79 140 4e-23 PDB
SCOP:d1ekga_ 87 125 2e-12 SMART
Blast:Frataxin_Cyay 87 133 1e-20 BLAST
Predicted Effect noncoding transcript
Transcript: ENSMUST00000132688
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.7%
  • 10x: 97.4%
  • 20x: 95.4%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This nuclear gene encodes a mitochondrial protein which belongs to the FRATAXIN family. The protein functions in regulating mitochondrial iron transport and respiration. The expansion of intronic trinucleotide repeat GAA from 8-33 repeats to >90 repeats results in Friedreich ataxia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2016]
PHENOTYPE: Homozygotes for a targeted null mutation exhibit early post-implantation lethality, in the absence of intramitochondrial iron accumulation. Conditional knockouts, specific to striated muscle and neuron/striated muscle, show cardiac hypertrophy and large sensory neuron dysfunction, respectively. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 51 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2310050C09Rik A G 3: 92,868,615 S254P probably damaging Het
Abcg1 T A 17: 31,105,517 S245R probably damaging Het
AI597479 T A 1: 43,100,823 W70R probably damaging Het
Ankrd55 A G 13: 112,383,505 S575G probably benign Het
Bfsp2 T A 9: 103,426,777 K343* probably null Het
Cant1 A T 11: 118,408,841 Y227* probably null Het
Cd2bp2 T C 7: 127,194,791 N109D probably benign Het
Chmp6 A G 11: 119,916,736 E135G possibly damaging Het
Dsp T G 13: 38,176,407 S329R probably damaging Het
Epha5 A T 5: 84,086,364 F767L probably damaging Het
Epha7 A T 4: 28,942,648 T566S possibly damaging Het
Erap1 A T 13: 74,662,405 I288F probably damaging Het
Erich6 A G 3: 58,629,845 probably null Het
Fbxo10 A G 4: 45,058,531 V402A probably benign Het
Fndc1 T A 17: 7,741,772 I1604F probably damaging Het
Foxd4 T G 19: 24,899,855 Q327P probably damaging Het
Hsf5 G T 11: 87,638,184 G582C possibly damaging Het
Itga8 A G 2: 12,194,420 V522A possibly damaging Het
Lyst C T 13: 13,709,341 T2938I possibly damaging Het
Mib2 T C 4: 155,654,933 E863G possibly damaging Het
Mrgpra9 A G 7: 47,235,049 F290S probably damaging Het
Mst1 T C 9: 108,084,340 Y599H possibly damaging Het
Mylk4 T C 13: 32,722,013 I165V probably damaging Het
Nipsnap2 T C 5: 129,746,473 probably null Het
Nol8 T C 13: 49,661,999 Y528H probably benign Het
Nup93 T A 8: 94,300,850 S295R probably damaging Het
Nutm2 A T 13: 50,467,417 Q6L probably benign Het
Olfr11 A T 13: 21,639,385 I46N probably damaging Het
Olfr1445 T A 19: 12,884,255 C125S probably damaging Het
Olfr820 A G 10: 130,017,688 E109G probably damaging Het
Olfr988 T G 2: 85,353,915 S4R probably benign Het
Pip5k1a A T 3: 95,071,918 L189Q probably damaging Het
Plekha4 C T 7: 45,549,274 R574C probably damaging Het
Ppp2cb A G 8: 33,610,677 E42G possibly damaging Het
Prkd3 T A 17: 78,975,554 Q244L probably benign Het
Ptpn14 C T 1: 189,863,228 R1023* probably null Het
Ptpra A G 2: 130,504,299 T127A probably benign Het
Rasgrf1 T C 9: 89,994,835 I751T possibly damaging Het
Rbm27 A G 18: 42,325,957 K697R probably damaging Het
Rhoa C T 9: 108,335,153 T127M probably benign Het
Rnpepl1 A G 1: 92,916,895 S370G probably null Het
Sdk1 C T 5: 142,114,574 T1453I probably damaging Het
Sel1l2 A G 2: 140,230,873 L614S probably damaging Het
Slc6a20b T A 9: 123,598,588 I419F probably damaging Het
Slc8a1 C T 17: 81,648,553 S352N possibly damaging Het
Spta1 A G 1: 174,192,966 D547G probably damaging Het
Tc2n G A 12: 101,706,544 T46I probably damaging Het
Terb1 T A 8: 104,472,884 Y476F probably benign Het
Trim12a T A 7: 104,304,192 E237D probably damaging Het
Usp47 T C 7: 112,067,191 L309P probably damaging Het
Other mutations in Fxn
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00569:Fxn APN 19 24267350 missense probably damaging 1.00
IGL01066:Fxn APN 19 24267298 splice site probably benign
I2288:Fxn UTSW 19 24262067 splice site probably benign
R0490:Fxn UTSW 19 24277179 critical splice donor site probably null
R1666:Fxn UTSW 19 24262013 missense probably damaging 1.00
R1668:Fxn UTSW 19 24262013 missense probably damaging 1.00
R1817:Fxn UTSW 19 24280401 splice site probably null
R5421:Fxn UTSW 19 24277285 splice site probably null
R6195:Fxn UTSW 19 24262043 missense probably damaging 1.00
R6318:Fxn UTSW 19 24280426 missense probably damaging 0.99
R7418:Fxn UTSW 19 24280496 missense probably benign 0.00
Z1176:Fxn UTSW 19 24262042 missense probably damaging 1.00
Predicted Primers PCR Primer

Sequencing Primer
Posted On2014-10-02