Incidental Mutation 'R1650:Dbt'
ID 174165
Institutional Source Beutler Lab
Gene Symbol Dbt
Ensembl Gene ENSMUSG00000000340
Gene Name dihydrolipoamide branched chain transacylase E2
Synonyms dihydrolipoyllysine-residue (2-methylpropanoyl)transferase, D3Wsu60e, dihydrolipoyl transacylase, BCKAD E2
MMRRC Submission 039686-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R1650 (G1)
Quality Score 182
Status Not validated
Chromosome 3
Chromosomal Location 116306776-116343630 bp(+) (GRCm39)
Type of Mutation splice site
DNA Base Change (assembly) A to G at 116328381 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change
Ref Sequence ENSEMBL: ENSMUSP00000143696 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000000349] [ENSMUST00000197201] [ENSMUST00000199614]
AlphaFold P53395
Predicted Effect probably null
Transcript: ENSMUST00000000349
SMART Domains Protein: ENSMUSP00000000349
Gene: ENSMUSG00000000340

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: ENSMUST00000196376
Predicted Effect probably null
Transcript: ENSMUST00000197201
Predicted Effect probably benign
Transcript: ENSMUST00000199614
Predicted Effect noncoding transcript
Transcript: ENSMUST00000199796
Coding Region Coverage
  • 1x: 98.7%
  • 3x: 97.4%
  • 10x: 93.0%
  • 20x: 83.4%
Validation Efficiency 99% (86/87)
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: 63 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abtb2 T G 2: 103,532,747 (GRCm39) V515G probably damaging Het
Ark2c A C 18: 77,550,113 (GRCm39) probably null Het
Arl5a A T 2: 52,302,117 (GRCm39) I99N probably damaging Het
Atp8b1 A G 18: 64,704,620 (GRCm39) probably benign Het
Bag4 T A 8: 26,267,452 (GRCm39) Q126L probably damaging Het
Ccser1 A G 6: 61,615,474 (GRCm39) T659A probably benign Het
Cenpn A G 8: 117,661,498 (GRCm39) D199G probably damaging Het
Cfhr3 A G 1: 139,521,564 (GRCm39) noncoding transcript Het
Clca3a2 T A 3: 144,797,973 (GRCm39) H164L probably damaging Het
Col5a1 C A 2: 27,812,171 (GRCm39) S84R unknown Het
Ctsc T A 7: 87,930,634 (GRCm39) L71* probably null Het
Cyp2c70 A G 19: 40,153,921 (GRCm39) Y223H probably benign Het
Dlg2 T C 7: 92,080,259 (GRCm39) V614A probably damaging Het
Dll4 T C 2: 119,161,611 (GRCm39) S398P probably damaging Het
Dyrk4 T C 6: 126,876,792 (GRCm39) K62E probably benign Het
Fgf22 A T 10: 79,591,023 (GRCm39) Y24F probably damaging Het
Ggt5 A G 10: 75,440,595 (GRCm39) R239G probably benign Het
Gm11360 C T 13: 28,140,379 (GRCm39) A81V unknown Het
Htr5b T A 1: 121,455,891 (GRCm39) T10S probably benign Het
Igsf10 T C 3: 59,233,583 (GRCm39) R1717G probably damaging Het
Itsn2 T A 12: 4,687,767 (GRCm39) V556D probably damaging Het
Kdm3b T C 18: 34,942,168 (GRCm39) V553A possibly damaging Het
Krt84 G A 15: 101,434,398 (GRCm39) S523F possibly damaging Het
Lca5l T C 16: 95,980,140 (GRCm39) probably null Het
Lmbrd1 T C 1: 24,750,639 (GRCm39) W171R probably damaging Het
Lrp6 T C 6: 134,445,732 (GRCm39) Y1027C probably benign Het
Macf1 A T 4: 123,350,393 (GRCm39) Y1702* probably null Het
Mon2 T C 10: 122,831,682 (GRCm39) I1675V probably benign Het
Mtcl1 T A 17: 66,692,871 (GRCm39) K486M probably damaging Het
Nek1 A T 8: 61,489,110 (GRCm39) H338L probably benign Het
Ola1 A T 2: 72,987,238 (GRCm39) D131E possibly damaging Het
Olr1 T A 6: 129,484,052 (GRCm39) M7L probably benign Het
Or1f12 T C 13: 21,721,249 (GRCm39) N294D probably damaging Het
Or4k36 C T 2: 111,146,640 (GRCm39) A272V probably benign Het
Or5t18 A T 2: 86,637,091 (GRCm39) M84K possibly damaging Het
Or5w10 C A 2: 87,375,772 (GRCm39) V39L probably benign Het
Or7g27 T G 9: 19,249,943 (GRCm39) F62L possibly damaging Het
Or9m2 C T 2: 87,821,145 (GRCm39) A230V probably benign Het
Pan2 G A 10: 128,153,768 (GRCm39) E980K probably damaging Het
Pgm1 C A 4: 99,819,276 (GRCm39) Q149K probably benign Het
Pgm1 A G 4: 99,819,267 (GRCm39) K146E possibly damaging Het
Phlpp2 T C 8: 110,660,587 (GRCm39) probably benign Het
Plekhs1 G T 19: 56,459,474 (GRCm39) G75C probably damaging Het
Plin4 G A 17: 56,411,931 (GRCm39) T700I probably damaging Het
Podxl2 G A 6: 88,826,901 (GRCm39) P71L probably benign Het
Pot1a A T 6: 25,745,964 (GRCm39) V579D probably damaging Het
Poteg A G 8: 27,953,813 (GRCm39) D318G probably benign Het
Ppp4r3a A T 12: 101,010,878 (GRCm39) D554E probably damaging Het
Proser3 G A 7: 30,239,751 (GRCm39) A451V probably damaging Het
Shld2 T A 14: 33,981,574 (GRCm39) probably benign Het
Strc T C 2: 121,211,366 (GRCm39) probably benign Het
Syce1 C A 7: 140,358,300 (GRCm39) C216F possibly damaging Het
Syne2 A T 12: 75,951,033 (GRCm39) K395* probably null Het
Trim28 G A 7: 12,764,776 (GRCm39) G831D possibly damaging Het
Tyw1 A G 5: 130,317,752 (GRCm39) I434V possibly damaging Het
Ubox5 G A 2: 130,442,345 (GRCm39) A114V probably benign Het
Ubqln3 C T 7: 103,790,228 (GRCm39) V621I possibly damaging Het
Unc79 A G 12: 103,079,052 (GRCm39) D1543G possibly damaging Het
Vmn2r115 ATCTTCT ATCT 17: 23,578,962 (GRCm39) probably benign Het
Wrnip1 C A 13: 32,989,362 (GRCm39) H283Q probably benign Het
Zan A T 5: 137,392,863 (GRCm39) probably benign Het
Zcchc10 A T 11: 53,218,229 (GRCm39) K1* probably null Het
Zfp592 T A 7: 80,687,848 (GRCm39) S925T probably benign Het
Other mutations in Dbt
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00546:Dbt APN 3 116,332,930 (GRCm39) missense probably benign
IGL00660:Dbt APN 3 116,339,944 (GRCm39) missense probably damaging 1.00
IGL00839:Dbt APN 3 116,339,763 (GRCm39) missense probably benign 0.21
IGL00840:Dbt APN 3 116,339,763 (GRCm39) missense probably benign 0.21
IGL00841:Dbt APN 3 116,339,763 (GRCm39) missense probably benign 0.21
IGL00852:Dbt APN 3 116,339,763 (GRCm39) missense probably benign 0.21
IGL00861:Dbt APN 3 116,339,763 (GRCm39) missense probably benign 0.21
IGL00955:Dbt APN 3 116,339,763 (GRCm39) missense probably benign 0.21
IGL00956:Dbt APN 3 116,339,763 (GRCm39) missense probably benign 0.21
IGL01475:Dbt APN 3 116,313,908 (GRCm39) missense possibly damaging 0.92
IGL01521:Dbt APN 3 116,327,032 (GRCm39) missense probably benign 0.00
IGL01806:Dbt APN 3 116,326,954 (GRCm39) missense probably damaging 1.00
IGL03288:Dbt APN 3 116,341,847 (GRCm39) makesense probably null
R0025:Dbt UTSW 3 116,328,432 (GRCm39) missense probably benign 0.22
R0066:Dbt UTSW 3 116,337,478 (GRCm39) missense probably benign 0.00
R0066:Dbt UTSW 3 116,337,478 (GRCm39) missense probably benign 0.00
R0190:Dbt UTSW 3 116,332,736 (GRCm39) critical splice acceptor site probably null
R1750:Dbt UTSW 3 116,339,943 (GRCm39) missense probably benign 0.18
R2130:Dbt UTSW 3 116,332,773 (GRCm39) missense probably damaging 1.00
R2131:Dbt UTSW 3 116,332,773 (GRCm39) missense probably damaging 1.00
R2133:Dbt UTSW 3 116,332,773 (GRCm39) missense probably damaging 1.00
R2897:Dbt UTSW 3 116,317,061 (GRCm39) missense probably damaging 1.00
R3442:Dbt UTSW 3 116,341,840 (GRCm39) missense probably benign
R4241:Dbt UTSW 3 116,326,945 (GRCm39) missense probably damaging 1.00
R4681:Dbt UTSW 3 116,326,963 (GRCm39) missense probably damaging 1.00
R4724:Dbt UTSW 3 116,326,945 (GRCm39) missense probably damaging 1.00
R4736:Dbt UTSW 3 116,332,781 (GRCm39) missense probably damaging 0.99
R4737:Dbt UTSW 3 116,332,781 (GRCm39) missense probably damaging 0.99
R4738:Dbt UTSW 3 116,332,781 (GRCm39) missense probably damaging 0.99
R4740:Dbt UTSW 3 116,332,781 (GRCm39) missense probably damaging 0.99
R4809:Dbt UTSW 3 116,339,992 (GRCm39) missense probably damaging 1.00
R4823:Dbt UTSW 3 116,317,036 (GRCm39) missense probably damaging 1.00
R4861:Dbt UTSW 3 116,341,727 (GRCm39) missense probably benign 0.00
R4861:Dbt UTSW 3 116,341,727 (GRCm39) missense probably benign 0.00
R5148:Dbt UTSW 3 116,321,893 (GRCm39) intron probably benign
R5327:Dbt UTSW 3 116,322,220 (GRCm39) intron probably benign
R5700:Dbt UTSW 3 116,313,952 (GRCm39) missense probably damaging 0.97
R5931:Dbt UTSW 3 116,317,074 (GRCm39) missense possibly damaging 0.80
R6463:Dbt UTSW 3 116,333,409 (GRCm39) missense possibly damaging 0.51
R7841:Dbt UTSW 3 116,339,746 (GRCm39) missense possibly damaging 0.85
R8122:Dbt UTSW 3 116,313,891 (GRCm39) nonsense probably null
R8385:Dbt UTSW 3 116,317,039 (GRCm39) missense probably damaging 1.00
R8941:Dbt UTSW 3 116,339,698 (GRCm39) missense probably damaging 0.99
R9734:Dbt UTSW 3 116,339,704 (GRCm39) missense probably benign
RF008:Dbt UTSW 3 116,341,717 (GRCm39) nonsense probably null
RF016:Dbt UTSW 3 116,333,363 (GRCm39) missense probably damaging 1.00
Z1177:Dbt UTSW 3 116,339,740 (GRCm39) missense probably damaging 1.00
Predicted Primers
Posted On 2014-04-24