Incidental Mutation 'R8229:Def6'
ID 640961
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 067645-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R8229 (G1)
Quality Score 225.009
Status Validated
Chromosome 17
Chromosomal Location 28426752-28447582 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 28436729 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Aspartic acid to Glycine at position 131 (D131G)
Ref Sequence ENSEMBL: ENSMUSP00000002327 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000002327]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000002327
AA Change: D131G

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000002327
Gene: ENSMUSG00000002257
AA Change: D131G

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
Meta Mutation Damage Score 0.4180 question?
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.9%
  • 10x: 99.5%
  • 20x: 98.8%
Validation Efficiency 100% (41/41)
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: 40 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Adam3 A T 8: 25,201,754 (GRCm39) M203K probably damaging Het
Arhgap23 G A 11: 97,344,732 (GRCm39) V565I probably benign Het
D6Wsu163e G T 6: 126,943,966 (GRCm39) R454L probably benign Het
Erc1 T C 6: 119,730,249 (GRCm39) T616A probably benign Het
Ermard T A 17: 15,279,596 (GRCm39) probably benign Het
Fsip2 T C 2: 82,808,487 (GRCm39) L1602P possibly damaging Het
Gli1 C T 10: 127,168,317 (GRCm39) R512Q possibly damaging Het
Gm6034 A G 17: 36,367,268 (GRCm39) T38A unknown Het
H2-M10.1 T C 17: 36,634,931 (GRCm39) I325V probably benign Het
Inf2 A G 12: 112,578,030 (GRCm39) D1107G unknown Het
Iws1 A G 18: 32,217,740 (GRCm39) N448S probably benign Het
Klhl24 T C 16: 19,933,321 (GRCm39) Y311H possibly damaging Het
Lama3 C T 18: 12,540,608 (GRCm39) A304V probably benign Het
Limch1 A G 5: 67,186,138 (GRCm39) E646G probably damaging Het
Lrrc8c T A 5: 105,754,402 (GRCm39) V59E probably benign Het
Lrrn4 G A 2: 132,711,807 (GRCm39) T672I probably damaging Het
Magi3 C A 3: 103,923,017 (GRCm39) E1233D possibly damaging Het
Magi3 T C 3: 103,923,018 (GRCm39) E1233G probably benign Het
Mgat5b A T 11: 116,838,213 (GRCm39) K284M probably benign Het
Nedd4 G T 9: 72,638,670 (GRCm39) K485N probably benign Het
Or4c114 T A 2: 88,905,382 (GRCm39) N18Y possibly damaging Het
Or5b101 A G 19: 13,005,561 (GRCm39) I44T possibly damaging Het
Or5p57 C T 7: 107,665,794 (GRCm39) M70I probably benign Het
Or5w17 A T 2: 87,583,408 (GRCm39) C310S probably benign Het
Otud4 A G 8: 80,400,604 (GRCm39) H1106R unknown Het
Pcdha7 C A 18: 37,107,776 (GRCm39) S267* probably null Het
Pcdhb11 A G 18: 37,555,671 (GRCm39) I334V probably benign Het
Phf11b A T 14: 59,568,730 (GRCm39) L61Q probably damaging Het
Prepl T C 17: 85,388,689 (GRCm39) D138G probably benign Het
Sipa1l1 T C 12: 82,484,622 (GRCm39) V1592A probably damaging Het
Smc6 T A 12: 11,341,673 (GRCm39) S564T probably benign Het
Spty2d1 A G 7: 46,647,522 (GRCm39) V469A probably benign Het
Trim11 G A 11: 58,872,167 (GRCm39) probably benign Het
Ttll7 T A 3: 146,607,204 (GRCm39) I158K probably damaging Het
Ugt3a1 A G 15: 9,367,463 (GRCm39) E402G probably damaging Het
Usp33 T C 3: 152,075,929 (GRCm39) V383A probably benign Het
Ythdc1 A G 5: 86,957,167 (GRCm39) probably benign Het
Ywhab T G 2: 163,856,015 (GRCm39) Y130* probably null Het
Zfp609 T C 9: 65,610,782 (GRCm39) K727R possibly damaging Het
Zscan30 A C 18: 24,104,737 (GRCm39) L37R noncoding transcript 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
R7029:Def6 UTSW 17 28,444,943 (GRCm39) missense probably benign 0.05
R7863:Def6 UTSW 17 28,446,841 (GRCm39) missense possibly damaging 0.62
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'- CTGTAGATGAACCCACGAAGGTAG -3'
(R):5'- CTGAGAACTTGCAGAGTCCC -3'

Sequencing Primer
(F):5'- ACCCACGAAGGTAGGCTGG -3'
(R):5'- GAACGCCCAATGATACTCT -3'
Posted On 2020-07-28