Incidental Mutation 'R4724:Dbt'
ID354654
Institutional Source Beutler Lab
Gene Symbol Dbt
Ensembl Gene ENSMUSG00000000340
Gene Namedihydrolipoamide branched chain transacylase E2
SynonymsD3Wsu60e, dihydrolipoyllysine-residue (2-methylpropanoyl)transferase, dihydrolipoyl transacylase, BCKAD E2
MMRRC Submission 041988-MU
Accession Numbers
Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R4724 (G1)
Quality Score225
Status Not validated
Chromosome3
Chromosomal Location116513070-116549981 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to C at 116533296 bp
ZygosityHeterozygous
Amino Acid Change Isoleucine to Threonine at position 98 (I98T)
Ref Sequence ENSEMBL: ENSMUSP00000000349 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000000349] [ENSMUST00000197201] [ENSMUST00000199614]
Predicted Effect probably damaging
Transcript: ENSMUST00000000349
AA Change: I98T

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
SMART Domains Protein: ENSMUSP00000000349
Gene: ENSMUSG00000000340
AA Change: I98T

DomainStartEndE-ValueType
Pfam:Biotin_lipoyl 65 138 2.8e-22 PFAM
Pfam:E3_binding 171 206 4.4e-18 PFAM
low complexity region 218 232 N/A INTRINSIC
Pfam:2-oxoacid_dh 248 479 8.5e-83 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000117197
Predicted Effect noncoding transcript
Transcript: ENSMUST00000196376
Predicted Effect probably benign
Transcript: ENSMUST00000197201
Predicted Effect probably benign
Transcript: ENSMUST00000199614
Predicted Effect noncoding transcript
Transcript: ENSMUST00000199796
Meta Mutation Damage Score 0.8052 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.5%
  • 10x: 96.9%
  • 20x: 94.4%
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The branched-chain alpha-keto acid dehydrogenase complex (BCKD) is an inner-mitochondrial enzyme complex involved in the breakdown of the branched-chain amino acids isoleucine, leucine, and valine. The BCKD complex is thought to be composed of a core of 24 transacylase (E2) subunits, and associated decarboxylase (E1), dehydrogenase (E3), and regulatory subunits. This gene encodes the transacylase (E2) subunit. Mutations in this gene result in maple syrup urine disease, type 2. Alternatively spliced transcript variants have been described, but their biological validity has not been determined. [provided by RefSeq, Jul 2008]
PHENOTYPE: Homozygous mutation of this gene results in postnatal lethality, pallor, respiratory distress, and an increase in branched-chain amino acids in the blood and urine. Homozygotes model Maple Syrup Urine Disease. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 105 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4933434E20Rik C G 3: 90,053,541 Q34E probably damaging Het
4933434E20Rik A T 3: 90,053,542 Q34L probably damaging Het
4933434E20Rik G T 3: 90,053,583 V48F probably damaging Het
8430408G22Rik T A 6: 116,652,135 C146* probably null Het
Abra T C 15: 41,865,906 D366G probably damaging Het
Acvr2a T C 2: 48,870,435 S68P probably damaging Het
Adam28 T A 14: 68,626,877 R492S probably damaging Het
Adamts1 T A 16: 85,802,505 E69V probably benign Het
Adgra1 A T 7: 139,875,589 M378L probably benign Het
Adgra2 T A 8: 27,098,822 N101K possibly damaging Het
Adhfe1 T A 1: 9,576,250 F449L probably damaging Het
Akap6 T A 12: 52,795,885 S5R possibly damaging Het
Akap9 G A 5: 4,055,339 R2883Q probably benign Het
Ank3 T A 10: 69,706,858 I16N probably benign Het
Api5 A T 2: 94,423,471 F296I possibly damaging Het
Ceacam14 G T 7: 17,814,050 probably null Het
Cep295 C T 9: 15,330,832 G1768S probably damaging Het
Cldn12 A G 5: 5,508,385 F14S probably damaging Het
Cp C A 3: 19,972,647 T413K probably benign Het
Ctdsp2 T G 10: 126,993,069 V104G probably damaging Het
Ctrc T A 4: 141,846,296 probably null Het
Dcaf10 G A 4: 45,372,769 R394Q possibly damaging Het
Dctn1 T A 6: 83,189,938 M257K possibly damaging Het
Dlgap5 C T 14: 47,401,520 probably null Het
Drd3 G T 16: 43,822,801 E467* probably null Het
Exoc8 A G 8: 124,897,250 V126A probably benign Het
Fam185a T A 5: 21,455,787 S267T probably damaging Het
Fhod1 T C 8: 105,337,861 probably benign Het
Fn1 T C 1: 71,648,148 probably null Het
Gadl1 A T 9: 115,954,617 T214S possibly damaging Het
Gem G T 4: 11,706,074 R54L probably damaging Het
Ghr A G 15: 3,325,940 V287A probably benign Het
Gm3642 G A 14: 6,833,344 T215I probably benign Het
Grip1 T A 10: 120,038,683 I732K probably benign Het
Gtpbp2 A T 17: 46,167,221 probably null Het
Heatr6 C T 11: 83,779,548 R976* probably null Het
Hipk2 T A 6: 38,698,392 T1084S probably benign Het
Hmcn1 T C 1: 150,694,833 probably null Het
Hspg2 T A 4: 137,522,127 M1328K probably damaging Het
Ifna4 C A 4: 88,842,282 T141K probably benign Het
Ighv1-64 A G 12: 115,507,846 V17A probably benign Het
Iqgap2 G T 13: 95,635,497 N1391K possibly damaging Het
Irf7 A T 7: 141,264,735 L148Q possibly damaging Het
Kat6b G A 14: 21,660,962 R768K probably benign Het
Lepr G A 4: 101,765,365 W447* probably null Het
Letmd1 A G 15: 100,469,738 Y59C probably damaging Het
Lingo4 A T 3: 94,402,876 K374* probably null Het
Loxl4 G T 19: 42,608,346 D62E probably benign Het
Lrfn2 A G 17: 49,070,434 D181G probably damaging Het
Lrrc71 A T 3: 87,739,174 F526L probably damaging Het
Ltbp1 A T 17: 75,313,008 M711L probably damaging Het
Mcm7 A T 5: 138,169,125 D78E probably damaging Het
Mdh1 T C 11: 21,562,957 N136D probably damaging Het
Meltf T A 16: 31,892,505 N515K probably benign Het
Mis18bp1 T A 12: 65,158,739 T220S probably benign Het
Mtss1 C T 15: 59,081,518 V4M probably damaging Het
Nacc2 A T 2: 26,090,173 F84I probably damaging Het
Nedd9 A G 13: 41,316,597 V360A possibly damaging Het
Nek11 T A 9: 105,392,970 I18F possibly damaging Het
Nkd2 C T 13: 73,847,005 V13M probably damaging Het
Nkx6-3 A G 8: 23,156,269 I152V probably damaging Het
Npdc1 G A 2: 25,408,945 D284N probably damaging Het
Olfr1 A T 11: 73,395,155 I289N probably damaging Het
Olfr1352 A G 10: 78,984,522 H244R probably damaging Het
Olfr1434 T C 19: 12,283,096 L16P probably damaging Het
Olfr215 T C 6: 116,582,937 N3S probably damaging Het
Olfr494 T A 7: 108,367,998 F169L probably benign Het
Olfr66 A G 7: 103,881,649 V198A probably benign Het
Oprm1 A T 10: 6,758,656 R16* probably null Het
Ostf1 G A 19: 18,593,867 P62L probably damaging Het
Pcdha2 A T 18: 36,940,515 T400S possibly damaging Het
Pcdha5 A T 18: 36,961,496 T353S possibly damaging Het
Pelo A G 13: 115,088,735 F318S probably damaging Het
Polr2f T C 15: 79,146,069 V36A probably benign Het
Ppan G A 9: 20,888,510 R41H probably benign Het
Ppp1r21 C T 17: 88,555,591 R253* probably null Het
Prf1 T A 10: 61,303,708 W482R probably damaging Het
Ralgapa2 T C 2: 146,345,533 T1397A possibly damaging Het
Rev3l T A 10: 39,846,806 Y2598* probably null Het
Scaf11 G T 15: 96,414,848 D1437E probably benign Het
Sec23a C T 12: 58,978,506 G510R probably damaging Het
Sel1l2 A G 2: 140,240,927 M597T probably damaging Het
Slc11a2 A T 15: 100,406,338 S160T possibly damaging Het
Slc18a1 A T 8: 69,073,649 L129* probably null Het
Smg8 A C 11: 87,086,221 L178R probably benign Het
Sp4 T C 12: 118,261,809 T607A probably benign Het
Ssbp2 A G 13: 91,688,814 D266G possibly damaging Het
Sstr3 A T 15: 78,539,697 Y283* probably null Het
Stk32b C T 5: 37,454,934 probably null Het
Svep1 T C 4: 58,070,752 T2345A possibly damaging Het
Synpo2 A G 3: 123,114,291 S459P probably damaging Het
Sytl2 A G 7: 90,348,792 M1V probably null Het
Tas2r102 T A 6: 132,762,557 W143R probably damaging Het
Thy1 T C 9: 44,047,348 V129A probably damaging Het
Tlr2 A T 3: 83,838,185 I197N probably damaging Het
Tmem101 A G 11: 102,153,443 I206T probably benign Het
Tmem108 A G 9: 103,499,489 S254P possibly damaging Het
Tmem198b T C 10: 128,801,481 Q263R probably damaging Het
Vangl1 T C 3: 102,184,554 D72G probably damaging Het
Vmn1r4 T A 6: 56,957,364 D284E probably benign Het
Vmn2r31 G A 7: 7,384,758 L605F possibly damaging Het
Zfand4 T C 6: 116,273,819 V70A probably damaging Het
Zfp54 A G 17: 21,433,403 E53G probably damaging Het
Zfp541 A T 7: 16,081,687 I805F probably damaging Het
Zfp976 T C 7: 42,613,033 H460R possibly damaging Het
Other mutations in Dbt
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00546:Dbt APN 3 116539281 missense probably benign
IGL00660:Dbt APN 3 116546295 missense probably damaging 1.00
IGL00839:Dbt APN 3 116546114 missense probably benign 0.21
IGL00840:Dbt APN 3 116546114 missense probably benign 0.21
IGL00841:Dbt APN 3 116546114 missense probably benign 0.21
IGL00852:Dbt APN 3 116546114 missense probably benign 0.21
IGL00861:Dbt APN 3 116546114 missense probably benign 0.21
IGL00955:Dbt APN 3 116546114 missense probably benign 0.21
IGL00956:Dbt APN 3 116546114 missense probably benign 0.21
IGL01475:Dbt APN 3 116520259 missense possibly damaging 0.92
IGL01521:Dbt APN 3 116533383 missense probably benign 0.00
IGL01806:Dbt APN 3 116533305 missense probably damaging 1.00
IGL03288:Dbt APN 3 116548198 makesense probably null
R0025:Dbt UTSW 3 116534783 missense probably benign 0.22
R0066:Dbt UTSW 3 116543829 missense probably benign 0.00
R0066:Dbt UTSW 3 116543829 missense probably benign 0.00
R0190:Dbt UTSW 3 116539087 critical splice acceptor site probably null
R1650:Dbt UTSW 3 116534732 splice site probably null
R1750:Dbt UTSW 3 116546294 missense probably benign 0.18
R2130:Dbt UTSW 3 116539124 missense probably damaging 1.00
R2131:Dbt UTSW 3 116539124 missense probably damaging 1.00
R2133:Dbt UTSW 3 116539124 missense probably damaging 1.00
R2897:Dbt UTSW 3 116523412 missense probably damaging 1.00
R3442:Dbt UTSW 3 116548191 missense probably benign
R4241:Dbt UTSW 3 116533296 missense probably damaging 1.00
R4681:Dbt UTSW 3 116533314 missense probably damaging 1.00
R4736:Dbt UTSW 3 116539132 missense probably damaging 0.99
R4737:Dbt UTSW 3 116539132 missense probably damaging 0.99
R4738:Dbt UTSW 3 116539132 missense probably damaging 0.99
R4740:Dbt UTSW 3 116539132 missense probably damaging 0.99
R4809:Dbt UTSW 3 116546343 missense probably damaging 1.00
R4823:Dbt UTSW 3 116523387 missense probably damaging 1.00
R4861:Dbt UTSW 3 116548078 missense probably benign 0.00
R4861:Dbt UTSW 3 116548078 missense probably benign 0.00
R5148:Dbt UTSW 3 116528244 intron probably benign
R5327:Dbt UTSW 3 116528571 intron probably benign
R5700:Dbt UTSW 3 116520303 missense probably damaging 0.97
R5931:Dbt UTSW 3 116523425 missense possibly damaging 0.80
R6463:Dbt UTSW 3 116539760 missense possibly damaging 0.51
Predicted Primers PCR Primer
(F):5'- ATCATTTGTTAGGGGTTCGTCTGAAAC -3'
(R):5'- GTAATGAATGTGGCCAGACAC -3'

Sequencing Primer
(F):5'- CTAAAATATTTCTCAGGCATTTGGGC -3'
(R):5'- GACACGCTCACCCTTTAAAGCTTC -3'
Posted On2015-10-21