Incidental Mutation 'R4683:Def6'
ID 350138
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 041935-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R4683 (G1)
Quality Score 188
Status Not validated
Chromosome 17
Chromosomal Location 28426752-28447582 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 28436609 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Aspartic acid to Glycine at position 91 (D91G)
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: D91G

PolyPhen 2 Score 0.990 (Sensitivity: 0.72; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000002327
Gene: ENSMUSG00000002257
AA Change: D91G

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: 99.2%
  • 3x: 98.5%
  • 10x: 96.9%
  • 20x: 94.2%
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: 50 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Ackr3 T C 1: 90,141,709 (GRCm39) V56A probably damaging Het
Acyp1 A G 12: 85,325,717 (GRCm39) probably benign Het
Adgrb1 A T 15: 74,459,963 (GRCm39) K532I probably damaging Het
Ahrr T A 13: 74,372,885 (GRCm39) silent Het
Asz1 T C 6: 18,055,541 (GRCm39) probably benign Het
AW554918 T C 18: 25,472,852 (GRCm39) Y219H probably benign Het
Ccno C A 13: 113,125,543 (GRCm39) probably null Het
Cdh17 A T 4: 11,817,036 (GRCm39) N816Y possibly damaging Het
Clca4a C T 3: 144,660,701 (GRCm39) V708I probably damaging Het
Col6a3 T A 1: 90,701,179 (GRCm39) Y2579F unknown Het
Col6a4 A G 9: 105,957,329 (GRCm39) V165A probably benign Het
Csf1r T A 18: 61,257,983 (GRCm39) C651S probably damaging Het
Cyp4f14 T C 17: 33,126,985 (GRCm39) D315G probably null Het
Dmxl1 T G 18: 50,011,088 (GRCm39) S1082A probably damaging Het
Dnah2 A T 11: 69,349,768 (GRCm39) Y2392N probably damaging Het
Dsg4 T C 18: 20,594,466 (GRCm39) S532P probably benign Het
Efr3a C A 15: 65,691,650 (GRCm39) S126R probably damaging Het
Gab1 A C 8: 81,515,261 (GRCm39) H352Q probably benign Het
Gm1110 A G 9: 26,831,890 (GRCm39) M87T probably damaging Het
Greb1 C T 12: 16,761,774 (GRCm39) M535I possibly damaging Het
Greb1l T A 18: 10,529,563 (GRCm39) probably null Het
Gucy2d T C 7: 98,102,650 (GRCm39) C487R probably benign Het
H1f7 A T 15: 98,154,921 (GRCm39) I76N probably damaging Het
Lrrc2 A T 9: 110,791,614 (GRCm39) H122L possibly damaging Het
Mrps22 A T 9: 98,480,359 (GRCm39) probably null Het
Mxd3 T C 13: 55,473,613 (GRCm39) T202A probably benign Het
Neb T C 2: 52,134,074 (GRCm39) H3303R possibly damaging Het
Nup133 G A 8: 124,657,721 (GRCm39) R405* probably null Het
Or13a19 T C 7: 139,902,681 (GRCm39) L23P probably benign Het
Or14j6 A G 17: 38,215,039 (GRCm39) T201A probably benign Het
Pard3b T C 1: 62,255,675 (GRCm39) Y629H probably benign Het
Pcnx1 A G 12: 82,033,446 (GRCm39) D1781G probably benign Het
Pcsk5 A T 19: 17,450,405 (GRCm39) C1148S probably damaging Het
Pcsk9 A T 4: 106,316,092 (GRCm39) I117N possibly damaging Het
Pcyt1b C A X: 92,789,970 (GRCm39) P318H probably damaging Het
Pfkfb2 T A 1: 130,634,221 (GRCm39) probably null Het
Pi4ka T C 16: 17,114,901 (GRCm39) E1456G possibly damaging Het
Rlig1 T C 10: 100,414,243 (GRCm39) I139V probably benign Het
Sh2b2 C T 5: 136,260,574 (GRCm39) C214Y probably damaging Het
Slc52a2 C A 15: 76,424,433 (GRCm39) P224T probably damaging Het
Slf2 C G 19: 44,923,920 (GRCm39) R245G probably benign Het
Sox5 T C 6: 143,779,193 (GRCm39) S648G probably damaging Het
Stk36 T A 1: 74,673,344 (GRCm39) I1079N probably benign Het
Stxbp3 T C 3: 108,708,188 (GRCm39) D371G probably damaging Het
Trnau1ap A T 4: 132,049,063 (GRCm39) Y47N probably damaging Het
Ubr5 C T 15: 38,038,211 (GRCm39) R316H probably damaging Het
Vmn1r230 C T 17: 21,067,515 (GRCm39) R235C probably benign Het
Wnt10a C T 1: 74,842,296 (GRCm39) H93Y unknown Het
Zfp1005 T A 2: 150,108,390 (GRCm39) H50Q possibly damaging Het
Zfp52 A G 17: 21,781,769 (GRCm39) D539G probably benign 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
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
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'- CTGAGCCAACTTTGAGTTCAG -3'
(R):5'- GAACGCCCAATGATACTCTGTC -3'

Sequencing Primer
(F):5'- AGCCAACTTTGAGTTCAGTCTTG -3'
(R):5'- TCAGTGACTCCACCGTCTGG -3'
Posted On 2015-10-08