Incidental Mutation 'R0066:Dbt'
ID 18058
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 038357-MU
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # R0066 (G1)
Quality Score
Status Validated
Chromosome 3
Chromosomal Location 116306776-116343630 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 116337478 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Glutamine to Arginine at position 334 (Q334R)
Ref Sequence ENSEMBL: ENSMUSP00000000349 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000000349] [ENSMUST00000197201] [ENSMUST00000199614]
AlphaFold P53395
Predicted Effect probably benign
Transcript: ENSMUST00000000349
AA Change: Q334R

PolyPhen 2 Score 0.001 (Sensitivity: 0.99; Specificity: 0.15)
SMART Domains Protein: ENSMUSP00000000349
Gene: ENSMUSG00000000340
AA Change: Q334R

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 probably benign
Transcript: ENSMUST00000197201
Predicted Effect probably benign
Transcript: ENSMUST00000199614
Meta Mutation Damage Score 0.0889 question?
Coding Region Coverage
  • 1x: 89.0%
  • 3x: 85.6%
  • 10x: 75.4%
  • 20x: 57.8%
Validation Efficiency 94% (112/119)
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: 75 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1810064F22Rik A G 9: 22,119,177 (GRCm39) noncoding transcript Het
Aco2 T C 15: 81,787,666 (GRCm39) probably benign Het
Arsa T A 15: 89,358,539 (GRCm39) M288L possibly damaging Het
Atg2b A T 12: 105,614,708 (GRCm39) D1074E probably benign Het
Baiap2l1 A T 5: 144,221,372 (GRCm39) I174N probably damaging Het
Bptf A G 11: 106,952,962 (GRCm39) V199A possibly damaging Het
Btn2a2 T A 13: 23,662,655 (GRCm39) I432L probably benign Het
Ccdc150 A G 1: 54,395,850 (GRCm39) I778V probably benign Het
Cd200r2 G A 16: 44,730,037 (GRCm39) V194I possibly damaging Het
Cep350 A C 1: 155,786,964 (GRCm39) L1421R probably damaging Het
Col6a6 A T 9: 105,579,412 (GRCm39) C1938S probably damaging Het
Cspg4 A T 9: 56,795,418 (GRCm39) D1051V probably damaging Het
Cstf1 T A 2: 172,214,976 (GRCm39) N32K probably benign Het
Ctrb1 G A 8: 112,413,269 (GRCm39) R248* probably null Het
Cyp2d11 T A 15: 82,275,958 (GRCm39) M208L probably benign Het
Dcaf12 A G 4: 41,298,338 (GRCm39) V270A probably damaging Het
Dis3l T A 9: 64,226,447 (GRCm39) N361I probably benign Het
Dnm3 A G 1: 162,234,930 (GRCm39) V70A probably damaging Het
Dpy19l2 G A 9: 24,557,679 (GRCm39) probably benign Het
Dst C A 1: 34,228,634 (GRCm39) H2254N possibly damaging Het
Eif2b1 T G 5: 124,711,858 (GRCm39) probably null Het
Epm2aip1 A G 9: 111,101,531 (GRCm39) N168S probably benign Het
Fchsd2 A G 7: 100,927,631 (GRCm39) Y691C possibly damaging Het
Fndc8 A T 11: 82,788,398 (GRCm39) D76V probably benign Het
Frmd4a T C 2: 4,477,963 (GRCm39) L48P probably damaging Het
Gimap6 T A 6: 48,679,404 (GRCm39) I211F probably damaging Het
Gm15130 A G 2: 110,969,284 (GRCm39) probably benign Het
Gm19618 A T 6: 87,691,227 (GRCm39) Het
Gpatch1 G A 7: 34,986,652 (GRCm39) S768L probably damaging Het
Grb14 T G 2: 64,768,836 (GRCm39) probably null Het
Hnrnpd T C 5: 100,112,560 (GRCm39) E222G probably damaging Het
Ighv1-4 A G 12: 114,450,989 (GRCm39) S40P possibly damaging Het
Kcnh4 T C 11: 100,648,626 (GRCm39) H26R probably benign Het
Kctd2 T G 11: 115,320,343 (GRCm39) probably benign Het
Macf1 G A 4: 123,325,943 (GRCm39) Q3066* probably null Het
Mfn2 G A 4: 147,969,902 (GRCm39) probably benign Het
Mmab T C 5: 114,574,526 (GRCm39) probably benign Het
Mrc1 T C 2: 14,266,011 (GRCm39) S310P probably benign Het
Mrps21 T C 3: 95,770,197 (GRCm39) Y44C probably null Het
Myh10 T A 11: 68,590,317 (GRCm39) F121Y probably damaging Het
Myo1f A G 17: 33,820,677 (GRCm39) D840G probably damaging Het
Nol6 G T 4: 41,119,572 (GRCm39) probably benign Het
Ntsr2 T C 12: 16,704,120 (GRCm39) I207T probably benign Het
Nwd1 T A 8: 73,438,484 (GRCm39) S1552T probably benign Het
Or11j4 T A 14: 50,630,659 (GRCm39) F149I probably benign Het
Pkd1l3 G T 8: 110,347,103 (GRCm39) G159C unknown Het
Plcb4 T C 2: 135,803,689 (GRCm39) S521P probably benign Het
Plcl1 A T 1: 55,752,634 (GRCm39) I993F probably damaging Het
Plekha7 T C 7: 115,756,743 (GRCm39) S640G probably damaging Het
Ptprn2 A C 12: 117,240,222 (GRCm39) N993T probably benign Het
Reck A G 4: 43,930,936 (GRCm39) N646D probably damaging Het
Rfx2 A T 17: 57,093,736 (GRCm39) probably benign Het
Ripk2 G A 4: 16,123,868 (GRCm39) Q436* probably null Het
Ryr1 C T 7: 28,704,992 (GRCm39) probably benign Het
Sema6b A G 17: 56,435,271 (GRCm39) V324A possibly damaging Het
Sik2 C A 9: 50,909,833 (GRCm39) M73I probably benign Het
Slc39a6 T C 18: 24,732,326 (GRCm39) K321E probably damaging Het
Slc7a4 C A 16: 17,391,875 (GRCm39) V520F probably benign Het
Sptan1 C A 2: 29,893,679 (GRCm39) probably benign Het
Stab1 C T 14: 30,879,027 (GRCm39) probably benign Het
Tbc1d17 C T 7: 44,493,495 (GRCm39) probably benign Het
Tbcd T A 11: 121,394,590 (GRCm39) L49* probably null Het
Tulp4 A T 17: 6,252,008 (GRCm39) N60I probably damaging Het
Ubqlnl A T 7: 103,798,145 (GRCm39) W451R probably damaging Het
Usp53 G T 3: 122,746,956 (GRCm39) C363* probably null Het
Utp4 A G 8: 107,649,530 (GRCm39) T660A possibly damaging Het
Vmn1r194 A T 13: 22,428,641 (GRCm39) Y86F probably benign Het
Vmn1r195 A T 13: 22,463,409 (GRCm39) H293L possibly damaging Het
Vmn1r231 T C 17: 21,109,998 (GRCm39) R306G probably benign Het
Vmn2r77 T C 7: 86,449,964 (GRCm39) V70A probably benign Het
Vps8 A G 16: 21,296,273 (GRCm39) E515G possibly damaging Het
Wdr18 C A 10: 79,796,937 (GRCm39) Y104* probably null Het
Xab2 A T 8: 3,663,880 (GRCm39) N346K probably damaging Het
Zdhhc12 C T 2: 29,982,547 (GRCm39) R50H probably damaging Het
Zdhhc8 A G 16: 18,043,064 (GRCm39) S379P 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
R0190:Dbt UTSW 3 116,332,736 (GRCm39) critical splice acceptor site probably null
R1650:Dbt UTSW 3 116,328,381 (GRCm39) splice 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
Posted On 2013-03-25