Incidental Mutation 'R2133:Dbt'
ID233505
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 040136-MU
Accession Numbers
Is this an essential gene? Essential (E-score: 1.000) question?
Stock #R2133 (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 0.1976 question?
Coding Region Coverage
  • 1x: 99.3%
  • 3x: 98.6%
  • 10x: 97.3%
  • 20x: 94.9%
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: 121 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700067P10Rik A G 17: 48,090,452 K86E possibly damaging Het
9030624J02Rik T C 7: 118,794,575 Y516H probably damaging Het
Abcb11 A T 2: 69,323,883 V113E possibly damaging Het
Acacb TGGGG TGGG 5: 114,209,767 probably null Het
Adgrb1 T A 15: 74,529,908 L251Q probably damaging Het
Akap13 G T 7: 75,611,434 A1269S probably benign Het
Aox3 A G 1: 58,169,843 H845R probably damaging Het
Apc C A 18: 34,312,045 Q665K possibly damaging Het
Atp13a2 T A 4: 141,005,016 M864K probably damaging Het
Atp6v1c2 T C 12: 17,321,611 T62A probably benign Het
Atp7b T C 8: 22,011,077 T937A probably damaging Het
BC034090 C T 1: 155,225,786 G244D probably benign Het
C2 G A 17: 34,879,902 T146M probably damaging Het
Cacna1h A G 17: 25,383,528 F1403L probably damaging Het
Camk2b T C 11: 5,977,880 E390G probably benign Het
Cars C A 7: 143,592,474 R71M probably damaging Het
Ccdc141 G A 2: 77,059,607 T447I probably benign Het
Cep164 T C 9: 45,803,183 E182G probably damaging Het
Clstn3 T C 6: 124,449,503 T575A probably benign Het
Cntnap2 T C 6: 47,298,445 L1277P probably damaging Het
Cyp4a14 A T 4: 115,491,391 S325R probably damaging Het
Ddx10 T A 9: 53,149,512 R768S probably benign Het
Dis3 A T 14: 99,079,877 N710K probably benign Het
Dmrta1 A T 4: 89,688,709 Q134L probably damaging Het
Eif3i A T 4: 129,596,926 H18Q probably benign Het
Emx2 A G 19: 59,464,033 T250A probably damaging Het
Epb41l4a T C 18: 33,874,195 T248A probably damaging Het
Epm2a A G 10: 11,343,682 E71G probably benign Het
Eps15l1 A T 8: 72,386,868 V260D probably benign Het
Etv4 A G 11: 101,775,417 I95T probably damaging Het
Etv6 T C 6: 134,248,754 V316A possibly damaging Het
Exoc4 T C 6: 33,758,158 V570A probably benign Het
Exoc4 T C 6: 33,910,538 S754P probably benign Het
Faf1 A G 4: 109,710,845 N34S probably damaging Het
Fam208a A G 14: 27,476,614 N1301S possibly damaging Het
Fam217a T C 13: 34,913,680 H208R probably damaging Het
Fgf17 T C 14: 70,638,487 R102G probably damaging Het
Fhad1 G A 4: 141,928,400 R798C probably damaging Het
Fkbp15 C A 4: 62,327,899 G431W probably damaging Het
Gatsl2 G A 5: 134,136,153 C187Y probably damaging Het
Gemin4 G C 11: 76,211,050 P962A probably damaging Het
Gm1587 A T 14: 77,794,856 C113* probably null Het
Gm28040 AGTG AGTGGCACCTTTGGTG 1: 133,327,321 probably benign Het
Golim4 A T 3: 75,908,149 V116D probably damaging Het
Gpr132 A G 12: 112,852,403 S268P probably damaging Het
Gtpbp2 T C 17: 46,161,202 M21T probably benign Het
Guca2b T C 4: 119,657,631 R78G probably benign Het
Helz T A 11: 107,670,484 N775K unknown Het
Ift20 G A 11: 78,540,034 E68K probably damaging Het
Insrr G A 3: 87,810,572 probably null Het
Ipo9 ATCCTCCTCCTCCTCCTC ATCCTCCTCCTCCTCCTCCTC 1: 135,386,268 probably benign Het
Ipo9 TCC TCCACC 1: 135,386,275 probably benign Het
Ipo9 A G 1: 135,402,250 V484A probably benign Het
Irak3 A G 10: 120,165,177 I281T probably benign Het
Kcnh8 T C 17: 52,893,933 V465A probably damaging Het
Khsrp A T 17: 57,027,832 I138N probably benign Het
Larp1b T C 3: 40,970,535 M149T possibly damaging Het
Ldhc A T 7: 46,869,599 D82V probably damaging Het
Lgmn T C 12: 102,394,908 Y400C probably damaging Het
Lmo2 T C 2: 103,981,062 Y147H probably damaging Het
Lmtk2 C T 5: 144,174,988 T842I possibly damaging Het
Lpo T A 11: 87,821,130 I34F probably benign Het
Magel2 A T 7: 62,377,738 H130L unknown Het
Mamld1 C A X: 71,119,392 Q670K probably benign Het
Mcrs1 A T 15: 99,243,375 D402E probably damaging Het
Mki67 T A 7: 135,704,241 probably null Het
Morc2a T A 11: 3,680,302 C499* probably null Het
Mpp2 G A 11: 102,064,595 R110C probably benign Het
Msra T A 14: 64,233,928 T47S probably damaging Het
Nrp1 A T 8: 128,498,516 E782D probably damaging Het
Ogdhl T C 14: 32,325,934 V47A probably benign Het
Olfml3 T A 3: 103,735,869 M399L probably benign Het
Olfr1245 G A 2: 89,575,256 Q157* probably null Het
Olfr341 A G 2: 36,480,047 S28P possibly damaging Het
Olfr453 C A 6: 42,744,135 L33M possibly damaging Het
Optc A T 1: 133,903,796 probably null Het
Osbpl6 T A 2: 76,586,214 I546K probably damaging Het
Pard6g T C 18: 80,117,308 V212A probably damaging Het
Pcdhb14 C A 18: 37,447,870 Q10K probably benign Het
Pkhd1l1 T C 15: 44,516,185 I1069T possibly damaging Het
Plcb1 T A 2: 135,325,667 Y460* probably null Het
Plekha6 C A 1: 133,279,365 probably null Het
Prelp C T 1: 133,915,131 R92K probably benign Het
Ptprg T A 14: 12,211,637 I198N probably damaging Het
Rbm12 A T 2: 156,095,510 C947* probably null Het
Rc3h2 A T 2: 37,378,916 I846K probably benign Het
Ren1 C A 1: 133,358,982 probably null Het
Rfwd3 A T 8: 111,297,402 V96E probably benign Het
Rnf157 A G 11: 116,358,694 V232A possibly damaging Het
Ror1 A G 4: 100,410,025 N308D probably benign Het
Rrp1 T C 10: 78,401,894 probably benign Het
Rsph6a T A 7: 19,068,106 V360E probably damaging Het
Senp1 T A 15: 98,075,967 T132S probably benign Het
Sept4 A T 11: 87,583,436 Q60L probably benign Het
Slc41a3 C T 6: 90,626,381 A128V probably damaging Het
Slc7a9 T C 7: 35,453,493 F112S probably damaging Het
Slc9a4 T G 1: 40,607,741 probably null Het
Sort1 T A 3: 108,351,686 F678Y probably benign Het
Spidr G A 16: 16,053,273 L278F probably benign Het
Stard13 T C 5: 151,045,168 Y879C probably damaging Het
Synpo T C 18: 60,602,895 N421D probably damaging Het
Syt17 C T 7: 118,382,047 G351S possibly damaging Het
Tacc1 A T 8: 25,164,493 N271K probably damaging Het
Tdrd6 T C 17: 43,624,833 T1775A 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
Tmem132a C A 19: 10,864,066 R298L probably benign Het
Trabd2b A T 4: 114,610,008 Q478L probably benign Het
Trappc12 A T 12: 28,746,598 S312T probably benign Het
Trove2 T C 1: 143,760,034 D458G probably benign Het
Ttc9b T A 7: 27,654,349 probably null Het
Ttn G A 2: 76,850,612 Q1044* probably null Het
Ugt2b34 C T 5: 86,906,557 D122N probably benign Het
Zc3h6 A G 2: 128,967,830 H9R possibly damaging Het
Zdhhc13 T A 7: 48,824,644 L548Q possibly damaging Het
Zfp236 T C 18: 82,621,304 M1225V probably benign Het
Zfp280d T C 9: 72,308,005 F133L probably damaging Het
Zfp521 G A 18: 13,844,705 P884S possibly damaging Het
Zfp64 A G 2: 168,940,743 Y146H probably damaging Het
Zfyve26 T A 12: 79,268,434 I1423F possibly damaging Het
Zswim6 T A 13: 107,743,987 noncoding transcript 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
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 On2014-10-01