Incidental Mutation 'IGL02040:Azin2'
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Azin2
Ensembl Gene ENSMUSG00000028789
Gene Nameantizyme inhibitor 2
SynonymsAZIN2, Odcp, 4933429I20Rik, Adc
Accession Numbers
Is this an essential gene? Possibly non essential (E-score: 0.279) question?
Stock #IGL02040
Quality Score
Chromosomal Location128930233-128962442 bp(-) (GRCm38)
Type of Mutationmissense
DNA Base Change (assembly) G to T at 128950658 bp
Amino Acid Change Leucine to Methionine at position 37 (L37M)
Ref Sequence ENSEMBL: ENSMUSP00000114086 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000030581] [ENSMUST00000106068] [ENSMUST00000119354] [ENSMUST00000147731]
Predicted Effect possibly damaging
Transcript: ENSMUST00000030581
AA Change: L132M

PolyPhen 2 Score 0.780 (Sensitivity: 0.85; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000030581
Gene: ENSMUSG00000028789
AA Change: L132M

Pfam:Orn_Arg_deC_N 45 283 1.9e-69 PFAM
Pfam:Orn_DAP_Arg_deC 286 407 1.7e-22 PFAM
Predicted Effect possibly damaging
Transcript: ENSMUST00000106068
AA Change: L132M

PolyPhen 2 Score 0.780 (Sensitivity: 0.85; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000101683
Gene: ENSMUSG00000028789
AA Change: L132M

Pfam:Orn_Arg_deC_N 45 283 6.7e-73 PFAM
Pfam:Orn_DAP_Arg_deC 287 406 1.9e-21 PFAM
Predicted Effect possibly damaging
Transcript: ENSMUST00000119354
AA Change: L37M

PolyPhen 2 Score 0.780 (Sensitivity: 0.85; Specificity: 0.93)
SMART Domains Protein: ENSMUSP00000114086
Gene: ENSMUSG00000028789
AA Change: L37M

Pfam:Orn_Arg_deC_N 1 188 4.2e-54 PFAM
Pfam:Orn_DAP_Arg_deC 191 312 4.3e-23 PFAM
Predicted Effect noncoding transcript
Transcript: ENSMUST00000128820
Predicted Effect noncoding transcript
Transcript: ENSMUST00000143912
Predicted Effect probably benign
Transcript: ENSMUST00000147731
AA Change: L51M

PolyPhen 2 Score 0.043 (Sensitivity: 0.94; Specificity: 0.83)
SMART Domains Protein: ENSMUSP00000122240
Gene: ENSMUSG00000028789
AA Change: L51M

Pfam:Orn_Arg_deC_N 2 202 4e-56 PFAM
Coding Region Coverage
Validation Efficiency
MGI Phenotype FUNCTION: The protein encoded by this gene belongs to the antizyme inhibitor family, which plays a role in cell growth and proliferation by maintaining polyamine homeostasis within the cell. Antizyme inhibitors are homologs of ornithine decarboxylase (ODC, the key enzyme in polyamine biosynthesis) that have lost the ability to decarboxylase ornithine; however, retain the ability to bind to antizymes. Antizymes negatively regulate intracellular polyamine levels by binding to ODC and targeting it for degradation, as well as by inhibiting polyamine uptake. Antizyme inhibitors function as positive regulators of polyamine levels by sequestering antizymes and neutralizing their effect. This gene encodes antizyme inhibitor 2, the second member of this gene family. Like antizyme inhibitor 1, antizyme inhibitor 2 interacts with all 3 antizymes and stimulates ODC activity and polyamine uptake. However, unlike antizyme inhibitor 1, which is ubiquitously expressed and localized in the nucleus and cytoplasm, antizyme inhibitor 2 is predominantly expressed in the brain and testis and localized in the endoplasmic reticulum-golgi intermediate compartment. Recent studies indicate that antizyme inhibitor 2 is also expressed in specific cell types in ovaries, adrenal glands and pancreas, and in mast cells. The exact function of this gene is not known, however, available data suggest its role in cell growth, spermiogenesis, vesicular trafficking and secretion. There has been confusion in literature and databases over the nomenclature of this gene, stemming from an earlier report that a human cDNA clone (identical to ODCp/AZIN2) had arginine decarboxylase (ADC) activity (PMID:14738999). Subsequent studies in human and mouse showed that antizyme inhibitor 2 was devoid of arginine decarboxylase activity (PMID:19956990). Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Sep 2014]
PHENOTYPE: Mice homozygous for a gene trap allele exhibit decreased circulating insulin levels. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 57 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700109H08Rik T G 5: 3,580,405 F107C probably damaging Het
4930590J08Rik T C 6: 91,918,110 V262A probably benign Het
A830018L16Rik T A 1: 11,933,598 probably benign Het
Adgrb1 T C 15: 74,541,575 V536A possibly damaging Het
Ano6 T G 15: 95,955,944 I667R probably benign Het
Ap3b1 T A 13: 94,408,845 probably null Het
Caap1 A G 4: 94,550,430 I174T probably damaging Het
Cacna1h A G 17: 25,397,611 V46A probably benign Het
Chrna6 T C 8: 27,407,261 D196G probably damaging Het
Col19a1 A G 1: 24,312,045 probably null Het
Defb22 G T 2: 152,490,056 T19K possibly damaging Het
Dhx36 T C 3: 62,501,015 D134G probably benign Het
Dync1h1 A G 12: 110,637,124 I2211V probably benign Het
Ecel1 A C 1: 87,154,923 C23G probably benign Het
Elmod2 A G 8: 83,321,497 V112A probably damaging Het
Enpp1 T C 10: 24,655,856 K510E probably damaging Het
Erbb4 A T 1: 68,042,535 S1113R probably damaging Het
Esf1 A T 2: 140,129,261 D653E possibly damaging Het
Exd1 A G 2: 119,540,065 V54A possibly damaging Het
Fam227b A T 2: 126,121,084 probably benign Het
Fnbp1l A G 3: 122,570,953 probably benign Het
Foxf1 A G 8: 121,085,345 N316S probably damaging Het
Gm12794 G A 4: 101,941,134 V101I possibly damaging Het
Gm15448 A G 7: 3,821,517 probably benign Het
Gpaa1 T C 15: 76,334,295 V426A probably benign Het
Gpc2 A G 5: 138,276,582 probably null Het
Hnrnpab A G 11: 51,601,795 probably benign Het
Hsf4 T G 8: 105,275,667 probably benign Het
Inpp4a G T 1: 37,396,085 R179L probably damaging Het
Jakmip2 T A 18: 43,571,854 M361L probably benign Het
Kif15 A C 9: 123,017,385 Y117S probably damaging Het
Lnpep T C 17: 17,544,905 H761R probably benign Het
Masp2 G T 4: 148,603,813 C180F probably damaging Het
Mical2 A G 7: 112,311,406 E261G probably damaging Het
Mtmr7 T C 8: 40,560,885 I211V probably benign Het
Nsd2 T C 5: 33,867,571 probably benign Het
Olfr1062 A G 2: 86,422,992 I228T probably damaging Het
Olfr1226 A G 2: 89,193,563 I157T probably benign Het
Olfr638 A G 7: 104,003,407 N44S probably damaging Het
Olfr933 T C 9: 38,976,614 probably benign Het
Oxct1 G A 15: 4,026,768 probably benign Het
Plbd2 C T 5: 120,487,442 S430N probably damaging Het
Postn A G 3: 54,362,689 K63R probably benign Het
Proc A T 18: 32,134,860 V75E probably benign Het
Ptprt T C 2: 162,238,072 Y269C probably damaging Het
Rcc2 T C 4: 140,720,591 V476A possibly damaging Het
Recql5 A G 11: 115,932,797 V41A possibly damaging Het
Ros1 T A 10: 52,115,922 I1402F probably damaging Het
Rpgrip1 C T 14: 52,121,019 T194I possibly damaging Het
Scin T C 12: 40,069,453 probably benign Het
Skint4 T C 4: 112,146,482 probably benign Het
Sptan1 T A 2: 30,013,713 S1545T probably benign Het
Tpra1 A T 6: 88,910,182 H168L possibly damaging Het
Trim47 T C 11: 116,107,908 E295G probably damaging Het
Ttc28 T A 5: 110,892,936 C63* probably null Het
Usp45 G A 4: 21,830,433 R696H probably benign Het
Zfyve27 G A 19: 42,179,391 R124Q probably damaging Het
Other mutations in Azin2
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00932:Azin2 APN 4 128950666 missense probably damaging 1.00
IGL03349:Azin2 APN 4 128946114 nonsense probably null
R0118:Azin2 UTSW 4 128949637 missense probably damaging 0.97
R1215:Azin2 UTSW 4 128949696 missense probably damaging 0.96
R1940:Azin2 UTSW 4 128950784 splice site probably null
R2939:Azin2 UTSW 4 128934604 missense probably benign 0.44
R4899:Azin2 UTSW 4 128934653 missense probably benign 0.43
R5836:Azin2 UTSW 4 128948877 missense probably damaging 1.00
R6511:Azin2 UTSW 4 128934466 missense probably damaging 1.00
T0722:Azin2 UTSW 4 128946134 missense probably benign 0.00
T0975:Azin2 UTSW 4 128946134 missense probably benign 0.00
Posted On2014-05-07