Incidental Mutation 'R3841:Impdh1'
ID 277154
Institutional Source Beutler Lab
Gene Symbol Impdh1
Ensembl Gene ENSMUSG00000003500
Gene Name inosine monophosphate dehydrogenase 1
Synonyms B930086D20Rik
MMRRC Submission 040781-MU
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.262) question?
Stock # R3841 (G1)
Quality Score 225
Status Validated
Chromosome 6
Chromosomal Location 29200435-29216363 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 29202768 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Serine to Proline at position 421 (S421P)
Ref Sequence ENSEMBL: ENSMUSP00000124269 (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: S446P

PolyPhen 2 Score 0.889 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000077289
Gene: ENSMUSG00000003500
AA Change: S446P

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: S446P

PolyPhen 2 Score 0.889 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000124931
Gene: ENSMUSG00000003500
AA Change: S446P

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 probably damaging
Transcript: ENSMUST00000160878
AA Change: S421P

PolyPhen 2 Score 0.980 (Sensitivity: 0.75; Specificity: 0.96)
SMART Domains Protein: ENSMUSP00000124269
Gene: ENSMUSG00000003500
AA Change: S421P

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: S446P

PolyPhen 2 Score 0.889 (Sensitivity: 0.82; Specificity: 0.94)
SMART Domains Protein: ENSMUSP00000124541
Gene: ENSMUSG00000003500
AA Change: S446P

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 unknown
Transcript: ENSMUST00000162739
AA Change: S470P
SMART Domains Protein: ENSMUSP00000125077
Gene: ENSMUSG00000003500
AA Change: S470P

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 unknown
Transcript: ENSMUST00000162242
AA Change: S86P
SMART Domains Protein: ENSMUSP00000123981
Gene: ENSMUSG00000003500
AA Change: S86P

DomainStartEndE-ValueType
IMPDH 1 145 2e-11 SMART
low complexity region 165 181 N/A INTRINSIC
Predicted Effect probably benign
Transcript: ENSMUST00000162215
SMART Domains Protein: ENSMUSP00000125235
Gene: ENSMUSG00000003500

DomainStartEndE-ValueType
IMPDH 28 231 5.75e-17 SMART
CBS 161 209 3.37e-8 SMART
Meta Mutation Damage Score 0.2037 question?
Coding Region Coverage
  • 1x: 99.2%
  • 3x: 98.6%
  • 10x: 97.4%
  • 20x: 95.2%
Validation Efficiency 98% (43/44)
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: 43 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
4921524L21Rik A T 18: 6,620,104 (GRCm39) K11N probably benign Het
Atp8b3 A G 10: 80,365,540 (GRCm39) F405L possibly damaging Het
BC035947 G T 1: 78,474,482 (GRCm39) N683K probably benign Het
Bmper T A 9: 23,384,727 (GRCm39) probably null Het
Btnl7-ps A G 17: 34,761,550 (GRCm39) noncoding transcript Het
Cmya5 A G 13: 93,231,140 (GRCm39) V1316A probably damaging Het
Cracd A T 5: 77,006,858 (GRCm39) Q1073L unknown Het
Dgcr6 C A 16: 17,888,077 (GRCm39) Y200* probably null Het
Dsp A C 13: 38,381,681 (GRCm39) I2210L probably benign Het
Eef1e1 G A 13: 38,840,167 (GRCm39) T46I probably damaging Het
Epc2 A G 2: 49,378,750 (GRCm39) K68R probably damaging Het
F11r G T 1: 171,288,457 (GRCm39) R100L probably damaging Het
Fam83c C T 2: 155,676,668 (GRCm39) R34H probably benign Het
Fbxw25 A T 9: 109,491,202 (GRCm39) Y105* probably null Het
Ggt1 T A 10: 75,417,219 (GRCm39) Y5* probably null Het
Hipk2 T C 6: 38,795,861 (GRCm39) E136G probably damaging Het
Hsph1 T A 5: 149,544,180 (GRCm39) probably null Het
Jhy T A 9: 40,856,142 (GRCm39) E115V probably benign Het
Kmt2a T C 9: 44,742,588 (GRCm39) probably benign Het
Ldlrap1 T C 4: 134,477,747 (GRCm39) T159A probably damaging Het
Lrrc4c A G 2: 97,460,537 (GRCm39) T388A probably damaging Het
Map3k10 C A 7: 27,357,789 (GRCm39) C663F possibly damaging Het
Me3 A T 7: 89,435,701 (GRCm39) N179Y possibly damaging Het
Medag T A 5: 149,350,888 (GRCm39) I121N probably damaging Het
Mocos C T 18: 24,809,681 (GRCm39) A428V probably damaging Het
Mok C T 12: 110,781,591 (GRCm39) V59M probably benign Het
Neb C A 2: 52,097,672 (GRCm39) probably null Het
Nr2c2 C T 6: 92,140,119 (GRCm39) R464W probably damaging Het
Or52s1 G A 7: 102,861,900 (GRCm39) G267R probably damaging Het
Or6c35 A G 10: 129,169,202 (GRCm39) I151V probably benign Het
Otud1 G T 2: 19,663,554 (GRCm39) E228* probably null Het
Parp4 A T 14: 56,825,235 (GRCm39) N120Y probably damaging Het
Ptprb T C 10: 116,182,887 (GRCm39) V1521A possibly damaging Het
Rap1gap T C 4: 137,444,758 (GRCm39) F182S probably damaging Het
Rcan2 A G 17: 44,347,870 (GRCm39) K193R probably benign Het
Rdh19 A T 10: 127,692,755 (GRCm39) M141L probably benign Het
Selenok C T 14: 29,695,337 (GRCm39) R72* probably null Het
Tbpl1 A G 10: 22,587,807 (GRCm39) probably benign Het
Tnxb A G 17: 34,917,897 (GRCm39) E2270G possibly damaging Het
Tulp1 A G 17: 28,572,689 (GRCm39) V489A probably damaging Het
Utp20 A T 10: 88,611,065 (GRCm39) probably benign Het
Zfp617 G A 8: 72,685,961 (GRCm39) G97E probably damaging Het
Zfp773 A G 7: 7,135,390 (GRCm39) V402A possibly damaging 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
R1331:Impdh1 UTSW 6 29,206,477 (GRCm39) missense probably damaging 0.96
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
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'- TCATGGATCTGAGAGGTGGAC -3'
(R):5'- AGCCTAGTATGTGGCTACAAGAG -3'

Sequencing Primer
(F):5'- GGTGAATAAGTCAGAAACACCCC -3'
(R):5'- GAAACAATGTATGAGGCTGCTGTG -3'
Posted On 2015-04-06