Incidental Mutation 'IGL03183:Impa1'
ID 412323
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Impa1
Ensembl Gene ENSMUSG00000027531
Gene Name inositol (myo)-1(or 4)-monophosphatase 1
Synonyms lithium-sensitive myo-inositol monophosphatase A1, 2900059K10Rik, 2610002K09Rik
Accession Numbers
Essential gene? Essential (E-score: 1.000) question?
Stock # IGL03183
Quality Score
Status
Chromosome 3
Chromosomal Location 10377016-10396499 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) A to G at 10388054 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Tyrosine to Histidine at position 123 (Y123H)
Ref Sequence ENSEMBL: ENSMUSP00000113860 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000065938] [ENSMUST00000118410] [ENSMUST00000128912] [ENSMUST00000191670] [ENSMUST00000192603]
AlphaFold no structure available at present
Predicted Effect probably damaging
Transcript: ENSMUST00000065938
AA Change: Y123H

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000068174
Gene: ENSMUSG00000027531
AA Change: Y123H

DomainStartEndE-ValueType
Pfam:Inositol_P 5 271 1.5e-86 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000118410
AA Change: Y123H

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000113860
Gene: ENSMUSG00000027531
AA Change: Y123H

DomainStartEndE-ValueType
Pfam:Inositol_P 5 271 7.7e-79 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000128912
SMART Domains Protein: ENSMUSP00000116088
Gene: ENSMUSG00000027531

DomainStartEndE-ValueType
Pfam:Inositol_P 19 90 4.4e-16 PFAM
Predicted Effect probably damaging
Transcript: ENSMUST00000191670
AA Change: Y123H

PolyPhen 2 Score 0.994 (Sensitivity: 0.69; Specificity: 0.97)
SMART Domains Protein: ENSMUSP00000141345
Gene: ENSMUSG00000027531
AA Change: Y123H

DomainStartEndE-ValueType
Pfam:Inositol_P 5 180 4.7e-49 PFAM
Predicted Effect probably benign
Transcript: ENSMUST00000192603
SMART Domains Protein: ENSMUSP00000141735
Gene: ENSMUSG00000103392

DomainStartEndE-ValueType
signal peptide 1 18 N/A INTRINSIC
low complexity region 69 85 N/A INTRINSIC
Coding Region Coverage
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] This gene encodes an enzyme that dephosphorylates myo-inositol monophosphate to generate free myo-inositol, a precursor of phosphatidylinositol, and is therefore an important modulator of intracellular signal transduction via the production of the second messengers myoinositol 1,4,5-trisphosphate and diacylglycerol. This enzyme can also use myo-inositol-1,3-diphosphate, myo-inositol-1,4-diphosphate, scyllo-inositol-phosphate, glucose-1-phosphate, glucose-6-phosphate, fructose-1-phosphate, beta-glycerophosphate, and 2'-AMP as substrates. This enzyme shows magnesium-dependent phosphatase activity and is inhibited by therapeutic concentrations of lithium. Inhibition of inositol monophosphate hydroylosis and subsequent depletion of inositol for phosphatidylinositol synthesis may explain the anti-manic and anti-depressive effects of lithium administered to treat bipolar disorder. Alternative splicing results in multiple transcript variants encoding distinct isoforms. A pseudogene of this gene is also present on chromosome 8q21.13. [provided by RefSeq, Dec 2014]
PHENOTYPE: Most mice homozygous for a knock-out allele die between E9.5 and E10.5 with surviving mice exhibiting hyperactivity, increased rearing, and increased susceptibility to pilocarpine-induced seizures. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 44 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Aldh6a1 A G 12: 84,483,214 (GRCm39) probably null Het
Ano2 A T 6: 125,687,592 (GRCm39) K32N probably benign Het
Asic1 A G 15: 99,569,898 (GRCm39) H73R probably benign Het
B3glct A G 5: 149,677,607 (GRCm39) D412G probably damaging Het
Baz2b T C 2: 59,733,640 (GRCm39) I1891V probably benign Het
Cc2d2a A G 5: 43,889,721 (GRCm39) E1278G probably damaging Het
Ccdc116 T C 16: 16,960,718 (GRCm39) E33G probably benign Het
Celf4 T A 18: 25,670,796 (GRCm39) Q129L probably benign Het
Celf4 G T 18: 25,670,797 (GRCm39) Q129K probably benign Het
Cfap251 A G 5: 123,392,682 (GRCm39) probably benign Het
Col18a1 A G 10: 76,909,588 (GRCm39) S817P probably damaging Het
Corin A G 5: 72,458,929 (GRCm39) V940A probably damaging Het
Dlgap2 A T 8: 14,777,525 (GRCm39) N257Y possibly damaging Het
Dnah2 C A 11: 69,349,314 (GRCm39) V2441L possibly damaging Het
Evpl C T 11: 116,112,438 (GRCm39) E1751K probably damaging Het
Fat1 G A 8: 45,403,623 (GRCm39) E125K probably damaging Het
Fras1 A T 5: 96,881,640 (GRCm39) probably benign Het
Fryl G A 5: 73,234,038 (GRCm39) P1496S probably benign Het
G3bp2 A C 5: 92,202,905 (GRCm39) M362R possibly damaging Het
Grk5 T C 19: 61,057,774 (GRCm39) F158S probably damaging Het
Hmbox1 G T 14: 65,125,048 (GRCm39) Q188K probably damaging Het
Ift172 A T 5: 31,429,348 (GRCm39) D604E probably benign Het
Igkv6-32 T A 6: 70,051,556 (GRCm39) T5S probably benign Het
Itgb4 C T 11: 115,879,550 (GRCm39) T612M probably damaging Het
Med12l T A 3: 58,944,976 (GRCm39) probably null Het
Meis2 A G 2: 115,890,002 (GRCm39) L160S probably damaging Het
Micu1 C T 10: 59,563,870 (GRCm39) R31* probably null Het
Nlrp9a G T 7: 26,256,882 (GRCm39) A167S probably damaging Het
Or10j27 A G 1: 172,958,425 (GRCm39) Y120H probably damaging Het
Or4d10 A T 19: 12,051,392 (GRCm39) N201K probably damaging Het
Plpp6 A G 19: 28,942,071 (GRCm39) N224S possibly damaging Het
Sdk2 T A 11: 113,741,810 (GRCm39) H803L probably benign Het
Shld2 T C 14: 33,967,143 (GRCm39) T690A probably benign Het
Slc36a1 T A 11: 55,119,017 (GRCm39) Y331N probably damaging Het
Spata31d1c A T 13: 65,183,009 (GRCm39) I184F possibly damaging Het
Stat3 T C 11: 100,793,582 (GRCm39) I338V possibly damaging Het
Stk10 T A 11: 32,554,143 (GRCm39) V610E possibly damaging Het
Syna A G 5: 134,587,144 (GRCm39) S602P probably benign Het
Tap2 T A 17: 34,424,399 (GRCm39) probably benign Het
Tln1 T C 4: 43,539,084 (GRCm39) probably benign Het
Tra2b C A 16: 22,073,303 (GRCm39) probably benign Het
Ttc7b T C 12: 100,339,968 (GRCm39) probably null Het
Vmn2r121 G A X: 123,042,023 (GRCm39) T378I probably benign Het
Wdr1 A T 5: 38,690,825 (GRCm39) probably null Het
Other mutations in Impa1
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL01777:Impa1 APN 3 10,388,008 (GRCm39) missense probably damaging 1.00
IGL02411:Impa1 APN 3 10,388,018 (GRCm39) missense possibly damaging 0.90
IGL02733:Impa1 APN 3 10,394,025 (GRCm39) missense probably benign
lofty UTSW 3 10,394,064 (GRCm39) start codon destroyed probably null 1.00
olympian UTSW 3 10,380,340 (GRCm39) missense probably damaging 1.00
R0166:Impa1 UTSW 3 10,394,020 (GRCm39) missense probably damaging 0.99
R0782:Impa1 UTSW 3 10,387,956 (GRCm39) splice site probably benign
R1645:Impa1 UTSW 3 10,393,501 (GRCm39) missense possibly damaging 0.79
R3196:Impa1 UTSW 3 10,394,075 (GRCm39) splice site probably null
R3905:Impa1 UTSW 3 10,381,094 (GRCm39) missense probably benign
R4953:Impa1 UTSW 3 10,380,340 (GRCm39) missense probably damaging 1.00
R5495:Impa1 UTSW 3 10,391,230 (GRCm39) missense probably benign 0.08
R5884:Impa1 UTSW 3 10,381,284 (GRCm39) missense probably damaging 1.00
R5972:Impa1 UTSW 3 10,394,064 (GRCm39) start codon destroyed probably null 1.00
R6927:Impa1 UTSW 3 10,380,348 (GRCm39) missense probably benign 0.00
R7605:Impa1 UTSW 3 10,389,147 (GRCm39) missense probably damaging 0.96
R7801:Impa1 UTSW 3 10,386,727 (GRCm39) missense probably benign
R8086:Impa1 UTSW 3 10,387,988 (GRCm39) missense probably benign 0.02
R8190:Impa1 UTSW 3 10,386,688 (GRCm39) missense possibly damaging 0.48
R9685:Impa1 UTSW 3 10,393,430 (GRCm39) missense probably benign 0.00
X0054:Impa1 UTSW 3 10,381,160 (GRCm39) splice site probably null
Z1177:Impa1 UTSW 3 10,381,134 (GRCm39) missense probably benign 0.03
Posted On 2016-08-02