Incidental Mutation 'R2131:Dbt'
ID228045
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 040134-MU
Accession Numbers
Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R2131 (G1)
Quality Score225
Status Not validated
Chromosome3
Chromosomal Location116513070-116549981 bp(+) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) T to A at 116539124 bp
ZygosityHeterozygous
Amino Acid Change Aspartic acid to Glutamic Acid at position 16 (D16E)
Ref Sequence ENSEMBL: ENSMUSP00000143696 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000000349] [ENSMUST00000197201] [ENSMUST00000199614]
Predicted Effect probably damaging
Transcript: ENSMUST00000000349
AA Change: D197E

PolyPhen 2 Score 0.996 (Sensitivity: 0.55; Specificity: 0.98)
SMART Domains Protein: ENSMUSP00000000349
Gene: ENSMUSG00000000340
AA Change: D197E

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 damaging
Transcript: ENSMUST00000197201
AA Change: D16E

PolyPhen 2 Score 0.999 (Sensitivity: 0.14; Specificity: 0.99)
Predicted Effect probably benign
Transcript: ENSMUST00000199614
Meta Mutation Damage Score 0.19 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.3%
  • 20x: 95.0%
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: 123 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
2010111I01Rik T A 13: 63,210,149 C656S probably benign Het
4931408C20Rik T C 1: 26,685,854 R82G probably benign Het
9030624J02Rik T C 7: 118,794,575 Y516H probably damaging Het
A2ml1 T A 6: 128,576,260 N178I probably damaging Het
Acvr2b A G 9: 119,432,808 R437G probably damaging Het
Adamtsl3 C A 7: 82,578,594 A1329E probably damaging Het
Adgrl2 T C 3: 148,890,488 I71V probably damaging Het
Adra1a A T 14: 66,727,532 I324F possibly damaging Het
Akap13 G T 7: 75,611,434 A1269S probably benign Het
Ampd1 G T 3: 103,094,878 probably null Het
Ankrd16 T A 2: 11,783,695 D211E probably damaging Het
Aox3 A G 1: 58,169,843 H845R probably damaging Het
Apc C A 18: 34,312,045 Q665K possibly damaging Het
Arap2 T C 5: 62,677,958 N747S probably damaging Het
Arsk A T 13: 76,091,812 C47* probably null Het
Atp8b5 T A 4: 43,370,726 F1001I probably benign Het
Bap1 T A 14: 31,258,331 Y645* probably null Het
Brca2 A G 5: 150,557,129 Y2760C probably damaging Het
Cad T A 5: 31,058,072 F76I probably damaging Het
Capn9 G A 8: 124,605,711 G430R possibly damaging Het
Ccdc27 TTCCTCCTCCTCCTCCTCCTC TTCCTCCTCCTCCTCCTC 4: 154,036,306 probably benign Het
Cdkn2c A C 4: 109,665,063 N28K probably null Het
Celsr1 T A 15: 85,963,223 I1438F probably benign Het
Cfhr2 T G 1: 139,831,155 R52S probably benign Het
Cldn1 G C 16: 26,371,550 A26G probably damaging Het
Col20a1 T A 2: 180,992,573 F110L probably damaging Het
Creg2 T C 1: 39,624,978 N204S probably benign Het
Cx3cl1 C A 8: 94,779,573 Q69K probably benign Het
Cyfip2 T C 11: 46,286,131 E74G possibly damaging Het
Cyp2g1 A T 7: 26,820,710 I456F probably damaging Het
Dapk1 A G 13: 60,729,531 E528G possibly damaging Het
Dapk1 T A 13: 60,761,667 W1365R possibly damaging Het
Depdc5 T A 5: 32,990,781 L1469* probably null Het
Dnah3 T A 7: 119,967,759 T2415S possibly damaging Het
Dnmbp A G 19: 43,854,311 L1210S probably damaging Het
Dpyd T C 3: 118,674,568 V77A probably benign Het
Eps15l1 A T 8: 72,386,868 V260D probably benign Het
Eya1 A G 1: 14,170,974 V573A probably benign Het
Fam171b T A 2: 83,879,858 S625T probably damaging Het
Fam186a T C 15: 99,933,676 probably benign Het
Fam208a A G 14: 27,476,614 N1301S possibly damaging Het
Gabra4 G T 5: 71,641,224 D137E probably benign Het
Gatsl2 G A 5: 134,136,153 C187Y probably damaging Het
Gemin4 G C 11: 76,211,050 P962A probably damaging Het
Gm43302 T C 5: 105,274,744 D474G probably damaging Het
Golim4 A T 3: 75,908,149 V116D probably damaging Het
Gpr19 T C 6: 134,870,442 M1V probably null Het
Hnf4a T A 2: 163,547,418 N29K probably benign Het
Htt A G 5: 34,877,109 R1975G possibly damaging Het
Ift20 G A 11: 78,540,034 E68K probably damaging Het
Il4i1 G A 7: 44,840,070 V420M probably damaging Het
Insrr G A 3: 87,810,572 probably null Het
Ipo9 ATCCTCCTCCTCCTCCTC ATCCTCCTCCTCCTCCTCCTC 1: 135,386,268 probably benign Het
Ipo9 A G 1: 135,402,250 V484A probably benign Het
Jmjd4 A T 11: 59,454,955 H287L probably damaging Het
Kcnj13 A G 1: 87,386,534 V322A probably benign Het
Kdm5d T C Y: 941,483 L1228P probably benign Het
Klra3 A G 6: 130,335,775 S9P probably benign Het
Ldhd C T 8: 111,628,537 probably null Het
Lmo2 T C 2: 103,981,062 Y147H probably damaging Het
Lmo7 A T 14: 101,900,238 D670V probably damaging Het
Lmtk2 C T 5: 144,174,988 T842I possibly damaging Het
Lrp5 T C 19: 3,622,708 T534A possibly damaging Het
Lrrc24 A T 15: 76,715,581 F453I possibly damaging Het
Magel2 A T 7: 62,377,738 H130L unknown Het
Mcpt8 T C 14: 56,082,283 I237V probably damaging Het
Med4 A G 14: 73,517,996 N248S possibly damaging Het
Mest C T 6: 30,745,885 L269F probably damaging Het
Mib2 C T 4: 155,655,238 probably null Het
Mki67 T A 7: 135,704,241 probably null Het
Mnx1 T A 5: 29,474,189 S299C unknown Het
Nbr1 T A 11: 101,566,191 probably null Het
Ncapd3 T G 9: 27,083,346 V1174G probably damaging Het
Nyap1 A C 5: 137,733,681 probably null Het
Olfml3 T A 3: 103,735,869 M399L probably benign Het
Olfr341 A G 2: 36,480,047 S28P possibly damaging Het
Olfr775 T C 10: 129,251,074 F180S probably benign Het
Oosp1 T C 19: 11,690,950 D23G probably damaging Het
Optc A T 1: 133,903,796 probably null Het
Osbpl6 T A 2: 76,586,214 I546K probably damaging Het
Otog A T 7: 46,250,100 N275I probably damaging Het
Pcdhb14 C A 18: 37,447,870 Q10K probably benign Het
Pcx T C 19: 4,602,551 F189L probably benign Het
Pde6b A G 5: 108,428,203 D718G probably damaging Het
Pklr C A 3: 89,142,660 P314Q probably damaging Het
Plcb1 T A 2: 135,325,667 Y460* probably null Het
Plekha6 C A 1: 133,279,365 probably null Het
Plekho1 A G 3: 95,989,117 S347P probably damaging Het
Plxna2 G A 1: 194,644,750 D331N probably benign Het
Prelp C T 1: 133,915,131 R92K probably benign Het
Prkra A T 2: 76,647,136 I75K probably damaging Het
Ptpn11 G A 5: 121,172,026 A31V probably damaging Het
Pzp T C 6: 128,491,161 probably null Het
Rbm12 A T 2: 156,095,510 C947* probably null Het
Ren1 C G 1: 133,350,778 probably null Het
Sarm1 A T 11: 78,475,307 C649S probably benign Het
Sept12 T A 16: 4,991,779 Q223L probably damaging Het
Sept4 A T 11: 87,583,436 Q60L probably benign Het
Slc22a21 A T 11: 53,979,733 L42Q probably damaging Het
Slc44a1 GCCC GCCCCCCC 4: 53,563,246 probably null Het
Slc9a4 T G 1: 40,607,741 probably null Het
Sort1 T A 3: 108,351,686 F678Y probably benign Het
Spag6 T A 2: 18,733,097 C259* probably null Het
Stard13 T C 5: 151,045,168 Y879C probably damaging Het
Stk24 A T 14: 121,302,211 I191N probably damaging Het
Tacc1 A T 8: 25,164,493 N271K probably damaging Het
Tacc2 T A 7: 130,621,857 S91T possibly damaging Het
Tacr3 T C 3: 134,932,180 V366A probably benign Het
Tbccd1 A G 16: 22,841,989 S26P probably benign Het
Tecpr1 T A 5: 144,208,645 T595S probably benign Het
Tjp3 T A 10: 81,278,054 M457L possibly damaging Het
Tor1aip2 A G 1: 156,065,349 Y467C probably damaging Het
Trove2 T C 1: 143,760,034 D458G probably benign Het
Ttc9b T A 7: 27,654,349 probably null Het
Tti1 T C 2: 158,000,743 R789G probably benign Het
Ttn A T 2: 76,832,217 probably null Het
Txk T A 5: 72,696,579 T472S probably damaging Het
Ube2cbp A T 9: 86,372,487 probably null Het
Vav2 C A 2: 27,299,396 R176L possibly damaging Het
Wdr27 T A 17: 14,928,332 D133V probably damaging Het
Zc3h7a A T 16: 11,150,605 Y503* probably null Het
Zdhhc13 T A 7: 48,824,644 L548Q possibly damaging Het
Zfp467 A C 6: 48,442,661 S38A 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
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
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'- GCTGCAGGGCTACTCTTATT -3'
(R):5'- CACTGGCTCTGTTCGGTCTT -3'

Sequencing Primer
(F):5'- TGGCTGGCCTGGAACTCAG -3'
(R):5'- CGGTCTTTGCCTGTGAACACTG -3'
Posted On2014-09-17