Incidental Mutation 'R1331:Impdh1'
ID 156188
Institutional Source Beutler Lab
Gene Symbol Impdh1
Ensembl Gene ENSMUSG00000003500
Gene Name inosine monophosphate dehydrogenase 1
Synonyms B930086D20Rik
MMRRC Submission 039396-MU
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.262) question?
Stock # R1331 (G1)
Quality Score 225
Status Validated
Chromosome 6
Chromosomal Location 29200435-29216363 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to T at 29206477 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Valine to Aspartic acid at position 120 (V120D)
Ref Sequence ENSEMBL: ENSMUSP00000125235 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000078155] [ENSMUST00000159124] [ENSMUST00000160749] [ENSMUST00000160878] [ENSMUST00000162099] [ENSMUST00000162739] [ENSMUST00000162215]
AlphaFold P50096
Predicted Effect possibly damaging
Transcript: ENSMUST00000078155
AA Change: V120D

PolyPhen 2 Score 0.777 (Sensitivity: 0.85; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000077289
Gene: ENSMUSG00000003500
AA Change: V120D

DomainStartEndE-ValueType
IMPDH 28 504 6.73e-263 SMART
CBS 117 168 6.49e-10 SMART
CBS 184 232 3.37e-8 SMART
Predicted Effect possibly damaging
Transcript: ENSMUST00000159124
AA Change: V120D

PolyPhen 2 Score 0.777 (Sensitivity: 0.85; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000124931
Gene: ENSMUSG00000003500
AA Change: V120D

DomainStartEndE-ValueType
IMPDH 28 504 6.73e-263 SMART
CBS 117 168 6.49e-10 SMART
CBS 184 232 3.37e-8 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000160613
Predicted Effect probably benign
Transcript: ENSMUST00000160749
SMART Domains Protein: ENSMUSP00000125488
Gene: ENSMUSG00000003500

DomainStartEndE-ValueType
Pfam:IMPDH 28 84 3.9e-20 PFAM
Predicted Effect possibly damaging
Transcript: ENSMUST00000160878
AA Change: V95D

PolyPhen 2 Score 0.954 (Sensitivity: 0.79; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000124269
Gene: ENSMUSG00000003500
AA Change: V95D

DomainStartEndE-ValueType
IMPDH 28 479 2.97e-232 SMART
CBS 92 143 6.49e-10 SMART
CBS 159 207 3.37e-8 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000161654
Predicted Effect possibly damaging
Transcript: ENSMUST00000162099
AA Change: V120D

PolyPhen 2 Score 0.777 (Sensitivity: 0.85; Specificity: 0.92)
SMART Domains Protein: ENSMUSP00000124541
Gene: ENSMUSG00000003500
AA Change: V120D

DomainStartEndE-ValueType
IMPDH 28 504 6.73e-263 SMART
CBS 117 168 6.49e-10 SMART
CBS 184 232 3.37e-8 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000162739
AA Change: V144D

PolyPhen 2 Score 0.432 (Sensitivity: 0.89; Specificity: 0.90)
SMART Domains Protein: ENSMUSP00000125077
Gene: ENSMUSG00000003500
AA Change: V144D

DomainStartEndE-ValueType
low complexity region 8 22 N/A INTRINSIC
low complexity region 32 61 N/A INTRINSIC
IMPDH 86 558 2e-256 SMART
CBS 171 222 6.49e-10 SMART
CBS 238 286 3.37e-8 SMART
Predicted Effect probably damaging
Transcript: ENSMUST00000162215
AA Change: V120D

PolyPhen 2 Score 0.965 (Sensitivity: 0.78; Specificity: 0.95)
SMART Domains Protein: ENSMUSP00000125235
Gene: ENSMUSG00000003500
AA Change: V120D

DomainStartEndE-ValueType
IMPDH 28 231 5.75e-17 SMART
CBS 161 209 3.37e-8 SMART
Predicted Effect probably benign
Transcript: ENSMUST00000162242
SMART Domains Protein: ENSMUSP00000123981
Gene: ENSMUSG00000003500

DomainStartEndE-ValueType
IMPDH 1 145 2e-11 SMART
low complexity region 165 181 N/A INTRINSIC
Meta Mutation Damage Score 0.6467 question?
Coding Region Coverage
  • 1x: 99.1%
  • 3x: 98.2%
  • 10x: 96.2%
  • 20x: 93.0%
Validation Efficiency 100% (59/59)
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] The protein encoded by this gene acts as a homotetramer to regulate cell growth. The encoded protein is an enzyme that catalyzes the synthesis of xanthine monophosphate (XMP) from inosine-5'-monophosphate (IMP). This is the rate-limiting step in the de novo synthesis of guanine nucleotides. Defects in this gene are a cause of retinitis pigmentosa type 10 (RP10). Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]
PHENOTYPE: Mic homozygous for disruptions of this gene display abnormalities in T cell proliferation. Mice homozygous for an ENU-induced mutation exhibit reduced thickness of the outer nuclear layer and total retina thickness. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 53 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Acap1 A T 11: 69,773,202 (GRCm39) probably null Het
Acat1 T C 9: 53,496,183 (GRCm39) D318G probably benign Het
Ahdc1 T C 4: 132,791,002 (GRCm39) F748L probably benign Het
Alkbh8 T A 9: 3,347,916 (GRCm39) probably null Het
Arhgef26 A G 3: 62,247,449 (GRCm39) T178A probably benign Het
Bid C T 6: 120,874,216 (GRCm39) A110T possibly damaging Het
Ccdc180 T C 4: 45,909,359 (GRCm39) V509A possibly damaging Het
Ccdc39 T C 3: 33,869,634 (GRCm39) E731G probably benign Het
Cenpf A G 1: 189,374,998 (GRCm39) V2931A probably damaging Het
Cobl A T 11: 12,325,853 (GRCm39) N207K probably damaging Het
Col14a1 T A 15: 55,273,584 (GRCm39) W718R unknown Het
Dnah7a A G 1: 53,507,828 (GRCm39) I3081T probably damaging Het
Dync1h1 T C 12: 110,615,698 (GRCm39) V2977A probably damaging Het
Ephb4 A G 5: 137,364,796 (GRCm39) probably benign Het
Eri3 T C 4: 117,422,104 (GRCm39) probably benign Het
Fbxo24 A G 5: 137,617,891 (GRCm39) V291A probably damaging Het
Glra1 A C 11: 55,405,896 (GRCm39) S282A probably benign Het
Gm7589 C A 9: 59,053,325 (GRCm39) noncoding transcript Het
H6pd T C 4: 150,066,872 (GRCm39) N505D probably benign Het
Hdlbp T A 1: 93,348,853 (GRCm39) N566Y probably damaging Het
Hsp90aa1 C A 12: 110,659,254 (GRCm39) K514N probably damaging Het
Katnip A G 7: 125,465,627 (GRCm39) T1360A probably benign Het
Loxhd1 C T 18: 77,490,632 (GRCm39) P1411S possibly damaging Het
Lpl A G 8: 69,349,281 (GRCm39) E269G probably damaging Het
Map1a G T 2: 121,136,701 (GRCm39) E2268* probably null Het
Mark1 T C 1: 184,660,245 (GRCm39) E137G probably damaging Het
Mki67 A T 7: 135,300,005 (GRCm39) S1676R possibly damaging Het
Mogat2 T C 7: 98,872,722 (GRCm39) Y154C possibly damaging Het
Myo18a C G 11: 77,732,405 (GRCm39) I859M probably benign Het
Myo7a A G 7: 97,756,215 (GRCm39) V39A probably benign Het
Nedd4 T A 9: 72,584,668 (GRCm39) I123N probably damaging Het
Obscn A G 11: 58,977,754 (GRCm39) V1966A probably benign Het
Or7g33 T C 9: 19,448,842 (GRCm39) N128S probably benign Het
Orc3 T G 4: 34,599,748 (GRCm39) N77T probably benign Het
Penk A G 4: 4,134,287 (GRCm39) M120T probably benign Het
Phf7 G A 14: 30,962,362 (GRCm39) Q148* probably null Het
Pkhd1l1 G A 15: 44,368,943 (GRCm39) V863I probably damaging Het
Pkhd1l1 C T 15: 44,452,993 (GRCm39) R3973C probably damaging Het
Polq C T 16: 36,862,109 (GRCm39) T264M probably damaging Het
Ptprb A T 10: 116,203,437 (GRCm39) T2070S probably damaging Het
Ralgapb T C 2: 158,272,453 (GRCm39) F169S probably damaging Het
Rapgef5 G T 12: 117,685,084 (GRCm39) A278S probably benign Het
Ripor2 G T 13: 24,861,824 (GRCm39) E203* probably null Het
Setx T C 2: 29,069,698 (GRCm39) L2501P probably benign Het
Sh3bgrl2 C T 9: 83,459,684 (GRCm39) probably benign Het
Slc35b1 T A 11: 95,276,689 (GRCm39) V56D probably damaging Het
Slc45a4 C T 15: 73,458,596 (GRCm39) D326N probably benign Het
Stard9 C A 2: 120,504,117 (GRCm39) S221R probably damaging Het
Stat4 T A 1: 52,053,086 (GRCm39) V89D probably benign Het
Tek T A 4: 94,627,943 (GRCm39) probably benign Het
Tert T A 13: 73,796,473 (GRCm39) F1068Y probably damaging Het
Trim33 T A 3: 103,217,670 (GRCm39) I205K probably damaging Het
Vmn1r212 A T 13: 23,067,562 (GRCm39) I257K probably benign Het
Other mutations in Impdh1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01543:Impdh1 APN 6 29,203,377 (GRCm39) missense probably damaging 0.97
IGL01642:Impdh1 APN 6 29,207,165 (GRCm39) missense possibly damaging 0.57
IGL02187:Impdh1 APN 6 29,207,086 (GRCm39) splice site probably benign
IGL02294:Impdh1 APN 6 29,205,201 (GRCm39) missense probably benign 0.19
IGL02570:Impdh1 APN 6 29,203,197 (GRCm39) missense probably damaging 1.00
IGL02858:Impdh1 APN 6 29,206,924 (GRCm39) nonsense probably null
IGL02874:Impdh1 APN 6 29,203,155 (GRCm39) missense probably damaging 1.00
steve UTSW 6 29,204,631 (GRCm39) nonsense probably null
R0089:Impdh1 UTSW 6 29,206,325 (GRCm39) missense probably benign
R0855:Impdh1 UTSW 6 29,206,971 (GRCm39) missense probably damaging 1.00
R1797:Impdh1 UTSW 6 29,207,168 (GRCm39) missense probably damaging 0.98
R1824:Impdh1 UTSW 6 29,205,087 (GRCm39) missense probably benign 0.08
R1981:Impdh1 UTSW 6 29,206,450 (GRCm39) missense possibly damaging 0.70
R2076:Impdh1 UTSW 6 29,205,162 (GRCm39) missense probably damaging 0.99
R3841:Impdh1 UTSW 6 29,202,768 (GRCm39) missense probably damaging 0.98
R4020:Impdh1 UTSW 6 29,202,693 (GRCm39) missense probably benign 0.01
R4415:Impdh1 UTSW 6 29,209,221 (GRCm39) missense probably damaging 1.00
R4471:Impdh1 UTSW 6 29,204,631 (GRCm39) nonsense probably null
R4777:Impdh1 UTSW 6 29,205,201 (GRCm39) missense possibly damaging 0.95
R5783:Impdh1 UTSW 6 29,206,342 (GRCm39) missense possibly damaging 0.66
R5973:Impdh1 UTSW 6 29,207,161 (GRCm39) missense probably damaging 1.00
R7230:Impdh1 UTSW 6 29,206,062 (GRCm39) splice site probably null
R7512:Impdh1 UTSW 6 29,207,168 (GRCm39) missense probably benign 0.22
R8686:Impdh1 UTSW 6 29,216,214 (GRCm39) start gained probably benign
R8893:Impdh1 UTSW 6 29,216,248 (GRCm39) start gained probably benign
Predicted Primers PCR Primer
(F):5'- AGTTCCCTCTGTGATGCAGCTCTG -3'
(R):5'- AGGACTCTCACTTCTCAATGGCCC -3'

Sequencing Primer
(F):5'- GTGATGCAGCTCTGCCTTC -3'
(R):5'- ggctgtcctggaactcac -3'
Posted On 2014-02-11