Incidental Mutation 'R7029:Def6'
ID 546203
Institutional Source Beutler Lab
Gene Symbol Def6
Ensembl Gene ENSMUSG00000002257
Gene Name differentially expressed in FDCP 6
Synonyms SLAT, 2410003F05Rik, 6430538D02Rik, IRF-4-binding protein, IBP
MMRRC Submission 045130-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R7029 (G1)
Quality Score 217.009
Status Not validated
Chromosome 17
Chromosomal Location 28426752-28447582 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 28444943 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Lysine to Arginine at position 447 (K447R)
Ref Sequence ENSEMBL: ENSMUSP00000002327 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000002327]
AlphaFold no structure available at present
Predicted Effect probably benign
Transcript: ENSMUST00000002327
AA Change: K447R

PolyPhen 2 Score 0.045 (Sensitivity: 0.94; Specificity: 0.83)
SMART Domains Protein: ENSMUSP00000002327
Gene: ENSMUSG00000002257
AA Change: K447R

DomainStartEndE-ValueType
low complexity region 145 166 N/A INTRINSIC
PH 217 314 3.87e-20 SMART
coiled coil region 318 551 N/A INTRINSIC
Coding Region Coverage
  • 1x: 100.0%
  • 3x: 100.0%
  • 10x: 99.7%
  • 20x: 99.0%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] DEF6, or IBP, is a guanine nucleotide exchange factor (GEF) for RAC (MIM 602048) and CDC42 (MIM 116952) that is highly expressed in B and T cells (Gupta et al., 2003 [PubMed 12923183]).[supplied by OMIM, Mar 2008]
PHENOTYPE: Homozygous mutants spontaneously develop systemic autoimmunity. Females primarily are affected, displaying hypergammaglobulinemia, accumulation of effector/memory T cells and IgG+ B cells, and production of autoantibodies [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 41 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700034J05Rik T C 6: 146,853,841 (GRCm39) Q271R probably benign Het
Abhd4 T A 14: 54,500,164 (GRCm39) W63R probably damaging Het
Adcy5 A G 16: 35,120,018 (GRCm39) M1176V probably null Het
Bach1 G A 16: 87,516,179 (GRCm39) R240Q probably benign Het
Brox G A 1: 183,065,750 (GRCm39) P206L possibly damaging Het
Ccn3 A G 15: 54,611,171 (GRCm39) D102G possibly damaging Het
Dna2 T C 10: 62,799,773 (GRCm39) S726P probably damaging Het
Ell G A 8: 71,031,879 (GRCm39) V15I probably damaging Het
Entrep2 T A 7: 64,409,075 (GRCm39) T440S probably benign Het
Epha3 T A 16: 63,593,698 (GRCm39) D130V probably benign Het
Gys1 A G 7: 45,089,008 (GRCm39) T200A possibly damaging Het
Habp4 A T 13: 64,309,939 (GRCm39) H47L probably benign Het
Iqcn G T 8: 71,161,511 (GRCm39) V235L possibly damaging Het
Kcnj10 C A 1: 172,196,563 (GRCm39) R26S probably benign Het
Klhl1 T A 14: 96,755,632 (GRCm39) D41V probably benign Het
Lyn A G 4: 3,782,996 (GRCm39) T410A probably damaging Het
Mga A G 2: 119,754,031 (GRCm39) T847A probably damaging Het
Mrgpra3 G T 7: 47,239,290 (GRCm39) T212N probably benign Het
Myh4 T C 11: 67,137,251 (GRCm39) F491L probably benign Het
Neurl4 T A 11: 69,801,562 (GRCm39) I1206N probably damaging Het
Pcdhb15 T A 18: 37,608,621 (GRCm39) W618R possibly damaging Het
Pomc A G 12: 4,010,146 (GRCm39) H129R probably damaging Het
Ppm1l C A 3: 69,460,399 (GRCm39) H325Q probably benign Het
Psme4 A G 11: 30,722,474 (GRCm39) probably benign Het
Reep2 A G 18: 34,978,342 (GRCm39) I74V probably null Het
Robo2 T G 16: 73,745,225 (GRCm39) E850A probably damaging Het
Scrn2 T A 11: 96,921,262 (GRCm39) probably benign Het
Sfpq G A 4: 126,923,675 (GRCm39) R673K probably benign Het
Sh2d3c T C 2: 32,644,581 (GRCm39) *703R probably null Het
Spp1 A G 5: 104,587,167 (GRCm39) M85V probably benign Het
Srebf1 T C 11: 60,097,810 (GRCm39) E98G probably damaging Het
Srrm4 T A 5: 116,582,851 (GRCm39) probably benign Het
Ticam1 A T 17: 56,578,154 (GRCm39) S314T possibly damaging Het
Tie1 T C 4: 118,341,823 (GRCm39) I209V possibly damaging Het
Vapa G A 17: 65,889,586 (GRCm39) R194* probably null Het
Vcan C T 13: 89,838,360 (GRCm39) D2395N probably damaging Het
Whamm A G 7: 81,241,574 (GRCm39) H295R probably benign Het
Zdhhc14 A G 17: 5,698,186 (GRCm39) Y85C probably damaging Het
Zfp35 T A 18: 24,136,583 (GRCm39) F309Y probably damaging Het
Zfp423 C A 8: 88,414,694 (GRCm39) C1187F probably damaging Het
Zfp874b T C 13: 67,622,392 (GRCm39) Y302C probably damaging Het
Other mutations in Def6
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01603:Def6 APN 17 28,438,714 (GRCm39) splice site probably benign
IGL01619:Def6 APN 17 28,426,838 (GRCm39) missense probably damaging 1.00
IGL01737:Def6 APN 17 28,442,701 (GRCm39) missense possibly damaging 0.94
IGL02550:Def6 APN 17 28,447,235 (GRCm39) missense probably benign 0.03
Huntsville UTSW 17 28,438,950 (GRCm39) missense probably damaging 0.99
Redstone UTSW 17 28,436,729 (GRCm39) missense probably damaging 1.00
Silos UTSW 17 28,436,066 (GRCm39) missense probably damaging 1.00
R0013:Def6 UTSW 17 28,436,066 (GRCm39) missense probably damaging 1.00
R0335:Def6 UTSW 17 28,447,043 (GRCm39) missense possibly damaging 0.83
R0357:Def6 UTSW 17 28,442,909 (GRCm39) missense probably damaging 1.00
R0373:Def6 UTSW 17 28,439,154 (GRCm39) missense probably damaging 0.96
R1161:Def6 UTSW 17 28,436,593 (GRCm39) missense probably benign 0.00
R1310:Def6 UTSW 17 28,436,593 (GRCm39) missense probably benign 0.00
R1470:Def6 UTSW 17 28,444,956 (GRCm39) missense possibly damaging 0.67
R1470:Def6 UTSW 17 28,444,956 (GRCm39) missense possibly damaging 0.67
R1636:Def6 UTSW 17 28,442,892 (GRCm39) missense possibly damaging 0.95
R1778:Def6 UTSW 17 28,439,160 (GRCm39) missense probably benign 0.02
R2432:Def6 UTSW 17 28,447,043 (GRCm39) missense probably benign 0.03
R3881:Def6 UTSW 17 28,439,189 (GRCm39) missense probably damaging 1.00
R4402:Def6 UTSW 17 28,438,950 (GRCm39) missense probably damaging 0.99
R4589:Def6 UTSW 17 28,447,121 (GRCm39) missense probably benign
R4683:Def6 UTSW 17 28,436,609 (GRCm39) missense probably damaging 0.99
R5704:Def6 UTSW 17 28,447,200 (GRCm39) missense probably benign
R6481:Def6 UTSW 17 28,445,137 (GRCm39) missense probably benign 0.00
R6805:Def6 UTSW 17 28,442,691 (GRCm39) missense probably damaging 1.00
R7863:Def6 UTSW 17 28,446,841 (GRCm39) missense possibly damaging 0.62
R8229:Def6 UTSW 17 28,436,729 (GRCm39) missense probably damaging 1.00
R8856:Def6 UTSW 17 28,435,972 (GRCm39) missense probably damaging 1.00
R9297:Def6 UTSW 17 28,436,714 (GRCm39) missense probably damaging 1.00
R9671:Def6 UTSW 17 28,438,755 (GRCm39) missense probably benign 0.04
R9684:Def6 UTSW 17 28,436,044 (GRCm39) missense probably damaging 1.00
Predicted Primers PCR Primer
(F):5'- AGGTCAGATCAGGAAACCCC -3'
(R):5'- CCTTCAGATGCATCAGCTGC -3'

Sequencing Primer
(F):5'- TCCATACACAGAGCCAGGAAGAG -3'
(R):5'- CTGCTTCAGCTTCTCCTCC -3'
Posted On 2019-05-13