Incidental Mutation 'R5700:Dbt'
ID450831
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 043328-MU
Accession Numbers
Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R5700 (G1)
Quality Score225
Status Not validated
Chromosome3
Chromosomal Location116513070-116549981 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) G to A at 116520303 bp
ZygosityHeterozygous
Amino Acid Change Valine to Methionine at position 40 (V40M)
Ref Sequence ENSEMBL: ENSMUSP00000143713 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000000349] [ENSMUST00000197201] [ENSMUST00000199614]
Predicted Effect probably benign
Transcript: ENSMUST00000000349
AA Change: V40M

PolyPhen 2 Score 0.418 (Sensitivity: 0.89; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000000349
Gene: ENSMUSG00000000340
AA Change: V40M

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 benign
Transcript: ENSMUST00000197201
Predicted Effect probably damaging
Transcript: ENSMUST00000199614
AA Change: V40M

PolyPhen 2 Score 0.974 (Sensitivity: 0.76; Specificity: 0.96)
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.3%
  • 20x: 95.4%
Validation Efficiency 98% (50/51)
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: 49 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Abcc2 A T 19: 43,798,194 Q155L probably benign Het
Acadvl A C 11: 70,013,203 Y242D probably damaging Het
Armc8 A G 9: 99,496,149 probably null Het
Barx2 A T 9: 31,858,765 F156I probably damaging Het
Best1 T C 19: 9,997,199 probably benign Het
Btbd8 T C 5: 107,503,648 S136P possibly damaging Het
Btla T A 16: 45,250,573 Y298* probably null Het
Casr T A 16: 36,509,617 I452F probably damaging Het
Ccser1 C A 6: 61,311,276 P141H probably benign Het
Cr2 A G 1: 195,159,757 V296A probably damaging Het
Csl T A 10: 99,759,015 I63F probably damaging Het
Fam53b A T 7: 132,760,020 L93Q probably damaging Het
Fdps T C 3: 89,095,649 I105V probably damaging Het
Gm4884 A G 7: 41,043,219 D204G probably benign Het
Gm5592 A G 7: 41,158,579 probably benign Het
Gm7367 A T 7: 60,155,762 noncoding transcript Het
Grid2 T A 6: 64,094,432 V413D possibly damaging Het
Hgf C T 5: 16,610,124 P471L probably damaging Het
Hoxc9 T C 15: 102,981,881 Y77H possibly damaging Het
Hs6st3 C T 14: 119,138,787 R125* probably null Het
Kdm4b T C 17: 56,351,700 I15T possibly damaging Het
Klhl1 T C 14: 96,518,040 N93S probably benign Het
Klhl6 G A 16: 19,957,218 Q197* probably null Het
Medag T C 5: 149,422,217 V7A probably benign Het
Mptx2 G A 1: 173,274,847 L92F probably benign Het
Nckap5 C T 1: 125,976,925 probably null Het
Obscn T C 11: 59,133,194 K550R probably benign Het
Olfr1369-ps1 T A 13: 21,116,001 V103E probably damaging Het
Olfr193 T A 16: 59,109,993 I206F probably damaging Het
Olfr716 A G 7: 107,147,541 N75S probably benign Het
Olfr8 T C 10: 78,955,484 I93T probably damaging Het
Parp6 T C 9: 59,624,727 S101P probably damaging Het
Plcd3 T C 11: 103,073,763 N594S probably benign Het
Plscr5 A T 9: 92,205,511 K178* probably null Het
Ppp2r1b T C 9: 50,878,157 Y443H probably damaging Het
Pqlc2 C T 4: 139,300,254 S259N probably damaging Het
Prnd G A 2: 131,953,343 V128I probably benign Het
Rftn1 G T 17: 50,002,669 P156Q probably damaging Het
Scmh1 T C 4: 120,516,946 V445A probably benign Het
Serpinb6c A T 13: 33,899,308 M41K probably damaging Het
Spns1 A G 7: 126,372,469 V303A possibly damaging Het
Ston1 T A 17: 88,644,339 S639R probably damaging Het
Thbs4 T C 13: 92,776,953 D153G probably benign Het
Timm44 T C 8: 4,274,171 Y36C probably damaging Het
Trim34b G T 7: 104,336,411 V418F probably damaging Het
Vmn1r72 C T 7: 11,670,423 V33M probably damaging Het
Zcchc7 T C 4: 44,931,084 V412A probably benign Het
Zfand1 T A 3: 10,341,019 N210I probably damaging Het
Zfhx3 A G 8: 108,933,867 H1251R probably 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
R4724:Dbt UTSW 3 116533296 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
R5931:Dbt UTSW 3 116523425 missense possibly damaging 0.80
R6463:Dbt UTSW 3 116539760 missense possibly damaging 0.51
Predicted Primers
Posted On2017-01-03