Incidental Mutation 'IGL03202:Itm2b'
ID 413022
Institutional Source Australian Phenomics Network (link to record)
Gene Symbol Itm2b
Ensembl Gene ENSMUSG00000022108
Gene Name integral membrane protein 2B
Synonyms Bri2, D14Sel6, Bricd2b
Accession Numbers
Essential gene? Possibly non essential (E-score: 0.342) question?
Stock # IGL03202
Quality Score
Status
Chromosome 14
Chromosomal Location 73599666-73622729 bp(-) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) G to A at 73603229 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Proline to Leucine at position 120 (P120L)
Ref Sequence ENSEMBL: ENSMUSP00000153948 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000022704] [ENSMUST00000227454]
AlphaFold O89051
Predicted Effect probably damaging
Transcript: ENSMUST00000022704
AA Change: P176L

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000022704
Gene: ENSMUSG00000022108
AA Change: P176L

DomainStartEndE-ValueType
transmembrane domain 52 74 N/A INTRINSIC
BRICHOS 137 231 3.32e-34 SMART
Predicted Effect noncoding transcript
Transcript: ENSMUST00000226722
Predicted Effect probably damaging
Transcript: ENSMUST00000227454
AA Change: P120L

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
Predicted Effect noncoding transcript
Transcript: ENSMUST00000228707
Coding Region Coverage
Validation Efficiency
MGI Phenotype FUNCTION: [Summary is not available for the mouse gene. This summary is for the human ortholog.] Amyloid precursor proteins are processed by beta-secretase and gamma-secretase to produce beta-amyloid peptides which form the characteristic plaques of Alzheimer disease. This gene encodes a transmembrane protein which is processed at the C-terminus by furin or furin-like proteases to produce a small secreted peptide which inhibits the deposition of beta-amyloid. Mutations which result in extension of the C-terminal end of the encoded protein, thereby increasing the size of the secreted peptide, are associated with two neurogenerative diseases, familial British dementia and familial Danish dementia. [provided by RefSeq, Oct 2009]
PHENOTYPE: Mice homozygous for a null mutation display increased levels of soluble APP fragments in the brain. Mice homozygous for a knock-in allele exhibit impaired oject recognition, impaired contextual conditioning, and impaired spatial working memory. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 35 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
1700113H08Rik T C 10: 86,909,911 (GRCm39) M1T probably null Het
Ace T A 11: 105,867,788 (GRCm39) I168N probably damaging Het
Actr10 T G 12: 70,987,605 (GRCm39) C37W probably damaging Het
Atp10b T C 11: 43,125,268 (GRCm39) probably null Het
Bend5 A G 4: 111,290,441 (GRCm39) N146D possibly damaging Het
Cacna1b A G 2: 24,541,124 (GRCm39) F1347L probably damaging Het
Crybg3 T A 16: 59,315,072 (GRCm39) I2910F probably damaging Het
Cspg4 T C 9: 56,805,023 (GRCm39) S1945P possibly damaging Het
Cxcr4 T G 1: 128,516,641 (GRCm39) K340T probably damaging Het
Dnah6 T A 6: 73,121,683 (GRCm39) Y1433F probably damaging Het
Eif2ak4 T C 2: 118,231,101 (GRCm39) V77A probably damaging Het
Fscn3 A T 6: 28,434,451 (GRCm39) H342L probably benign Het
Gm9843 T C 16: 76,200,234 (GRCm39) noncoding transcript Het
Hdac9 T C 12: 34,423,950 (GRCm39) E520G probably damaging Het
Itpa T A 2: 130,509,859 (GRCm39) probably benign Het
Lce1l A T 3: 92,757,631 (GRCm39) C76S unknown Het
Lin54 A G 5: 100,623,673 (GRCm39) S55P possibly damaging Het
Lrrc37 T A 11: 103,506,199 (GRCm39) E1923V probably benign Het
Mtfmt C A 9: 65,356,008 (GRCm39) P303Q probably damaging Het
Nae1 A T 8: 105,244,811 (GRCm39) probably benign Het
Ncapd3 T A 9: 26,983,011 (GRCm39) probably benign Het
Or13a19 A G 7: 139,903,019 (GRCm39) M136V possibly damaging Het
Or1e22 G A 11: 73,377,351 (GRCm39) Q100* probably null Het
Pcnx2 A C 8: 126,498,783 (GRCm39) I1572S probably damaging Het
Piezo2 A T 18: 63,144,669 (GRCm39) Y2809N probably damaging Het
Pygl G T 12: 70,246,420 (GRCm39) Q376K probably benign Het
Resf1 G A 6: 149,227,937 (GRCm39) V328I probably benign Het
Rrp12 T C 19: 41,857,205 (GRCm39) probably null Het
Sephs1 A T 2: 4,894,074 (GRCm39) I92F possibly damaging Het
Taar4 T C 10: 23,836,692 (GRCm39) F101L probably damaging Het
Tenm2 A G 11: 35,915,375 (GRCm39) I2053T probably damaging Het
Tgfbr3 T G 5: 107,257,630 (GRCm39) probably benign Het
Vmn2r108 A T 17: 20,691,319 (GRCm39) Y401* probably null Het
Vmn2r87 A G 10: 130,333,091 (GRCm39) M53T probably benign Het
Zfp941 A G 7: 140,392,966 (GRCm39) V131A probably benign Het
Other mutations in Itm2b
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00857:Itm2b APN 14 73,602,056 (GRCm39) missense probably benign
IGL00864:Itm2b APN 14 73,600,575 (GRCm39) missense probably damaging 1.00
IGL02006:Itm2b APN 14 73,600,488 (GRCm39) unclassified probably benign
IGL02383:Itm2b APN 14 73,600,536 (GRCm39) nonsense probably null
IGL03190:Itm2b APN 14 73,603,229 (GRCm39) missense probably damaging 1.00
R0194:Itm2b UTSW 14 73,602,058 (GRCm39) missense probably benign 0.22
R0699:Itm2b UTSW 14 73,602,065 (GRCm39) missense probably damaging 1.00
R2068:Itm2b UTSW 14 73,600,575 (GRCm39) missense probably damaging 1.00
R2077:Itm2b UTSW 14 73,600,560 (GRCm39) missense probably benign
R6821:Itm2b UTSW 14 73,603,907 (GRCm39) missense probably benign 0.00
R7151:Itm2b UTSW 14 73,605,829 (GRCm39) start gained probably benign
R7290:Itm2b UTSW 14 73,605,785 (GRCm39) missense probably damaging 1.00
R9019:Itm2b UTSW 14 73,605,856 (GRCm39) start gained probably benign
R9077:Itm2b UTSW 14 73,605,865 (GRCm39) missense probably benign 0.04
R9300:Itm2b UTSW 14 73,603,896 (GRCm39) missense probably benign
Posted On 2016-08-02