rs2229434

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_000208.4(INSR):​c.2448G>A​(p.Thr816Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00924 in 1,614,044 control chromosomes in the GnomAD database, including 156 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.018 ( 45 hom., cov: 32)
Exomes 𝑓: 0.0083 ( 111 hom. )

Consequence

INSR
NM_000208.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -2.57

Publications

12 publications found
Variant links:
Genes affected
INSR (HGNC:6091): (insulin receptor) This gene encodes a member of the receptor tyrosine kinase family of proteins. The encoded preproprotein is proteolytically processed to generate alpha and beta subunits that form a heterotetrameric receptor. Binding of insulin or other ligands to this receptor activates the insulin signaling pathway, which regulates glucose uptake and release, as well as the synthesis and storage of carbohydrates, lipids and protein. Mutations in this gene underlie the inherited severe insulin resistance syndromes including type A insulin resistance syndrome, Donohue syndrome and Rabson-Mendenhall syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2015]
INSR Gene-Disease associations (from GenCC):
  • insulin-resistance syndrome type A
    Inheritance: AD, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp, G2P
  • Donohue syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, G2P
  • hyperinsulinism due to INSR deficiency
    Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp, Ambry Genetics
  • Rabson-Mendenhall syndrome
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.54).
BP6
Variant 19-7142910-C-T is Benign according to our data. Variant chr19-7142910-C-T is described in ClinVar as Benign. ClinVar VariationId is 330460.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.57 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.018 (2732/152194) while in subpopulation AFR AF = 0.042 (1743/41526). AF 95% confidence interval is 0.0403. There are 45 homozygotes in GnomAd4. There are 1327 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 45 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
INSRNM_000208.4 linkc.2448G>A p.Thr816Thr synonymous_variant Exon 12 of 22 ENST00000302850.10 NP_000199.2 P06213-1
INSRNM_001079817.3 linkc.2412G>A p.Thr804Thr synonymous_variant Exon 11 of 21 NP_001073285.1 P06213-2
INSRXM_011527988.3 linkc.2448G>A p.Thr816Thr synonymous_variant Exon 12 of 22 XP_011526290.2
INSRXM_011527989.4 linkc.2412G>A p.Thr804Thr synonymous_variant Exon 11 of 21 XP_011526291.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
INSRENST00000302850.10 linkc.2448G>A p.Thr816Thr synonymous_variant Exon 12 of 22 1 NM_000208.4 ENSP00000303830.4 P06213-1
INSRENST00000341500.9 linkc.2412G>A p.Thr804Thr synonymous_variant Exon 11 of 21 1 ENSP00000342838.4 P06213-2
INSRENST00000597211.1 linkn.131G>A non_coding_transcript_exon_variant Exon 1 of 2 3

Frequencies

GnomAD3 genomes
AF:
0.0179
AC:
2717
AN:
152076
Hom.:
44
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0417
Gnomad AMI
AF:
0.00330
Gnomad AMR
AF:
0.00721
Gnomad ASJ
AF:
0.0153
Gnomad EAS
AF:
0.0418
Gnomad SAS
AF:
0.00414
Gnomad FIN
AF:
0.00943
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.00666
Gnomad OTH
AF:
0.0159
GnomAD2 exomes
AF:
0.0112
AC:
2809
AN:
251192
AF XY:
0.00992
show subpopulations
Gnomad AFR exome
AF:
0.0436
Gnomad AMR exome
AF:
0.00431
Gnomad ASJ exome
AF:
0.0118
Gnomad EAS exome
AF:
0.0392
Gnomad FIN exome
AF:
0.0101
Gnomad NFE exome
AF:
0.00679
Gnomad OTH exome
AF:
0.00962
GnomAD4 exome
AF:
0.00833
AC:
12182
AN:
1461850
Hom.:
111
Cov.:
32
AF XY:
0.00793
AC XY:
5769
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.0405
AC:
1357
AN:
33476
American (AMR)
AF:
0.00456
AC:
204
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.0130
AC:
339
AN:
26134
East Asian (EAS)
AF:
0.0418
AC:
1660
AN:
39694
South Asian (SAS)
AF:
0.00226
AC:
195
AN:
86250
European-Finnish (FIN)
AF:
0.0105
AC:
562
AN:
53412
Middle Eastern (MID)
AF:
0.00954
AC:
55
AN:
5768
European-Non Finnish (NFE)
AF:
0.00644
AC:
7161
AN:
1112004
Other (OTH)
AF:
0.0107
AC:
649
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.474
Heterozygous variant carriers
0
752
1504
2257
3009
3761
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
326
652
978
1304
1630
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0180
AC:
2732
AN:
152194
Hom.:
45
Cov.:
32
AF XY:
0.0178
AC XY:
1327
AN XY:
74408
show subpopulations
African (AFR)
AF:
0.0420
AC:
1743
AN:
41526
American (AMR)
AF:
0.00720
AC:
110
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.0153
AC:
53
AN:
3468
East Asian (EAS)
AF:
0.0415
AC:
215
AN:
5176
South Asian (SAS)
AF:
0.00415
AC:
20
AN:
4824
European-Finnish (FIN)
AF:
0.00943
AC:
100
AN:
10610
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.00666
AC:
453
AN:
68006
Other (OTH)
AF:
0.0157
AC:
33
AN:
2104
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
129
257
386
514
643
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
32
64
96
128
160
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0105
Hom.:
23
Bravo
AF:
0.0196
Asia WGS
AF:
0.0230
AC:
79
AN:
3478
EpiCase
AF:
0.00529
EpiControl
AF:
0.00516

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Jan 13, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Insulin-resistant diabetes mellitus AND acanthosis nigricans Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Rabson-Mendenhall syndrome Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Leprechaunism syndrome Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.54
CADD
Benign
1.2
DANN
Benign
0.74
PhyloP100
-2.6
Mutation Taster
=100/0
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs2229434; hg19: chr19-7142921; API