rs373178978

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_000352.6(ABCC8):​c.4198+18C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00015 in 1,565,400 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00076 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000084 ( 0 hom. )

Consequence

ABCC8
NM_000352.6 intron

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:4

Conservation

PhyloP100: 0.385

Publications

1 publications found
Variant links:
Genes affected
ABCC8 (HGNC:59): (ATP binding cassette subfamily C member 8) The protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MRP subfamily which is involved in multi-drug resistance. This protein functions as a modulator of ATP-sensitive potassium channels and insulin release. Mutations in the ABCC8 gene and deficiencies in the encoded protein have been observed in patients with hyperinsulinemic hypoglycemia of infancy, an autosomal recessive disorder of unregulated and high insulin secretion. Mutations have also been associated with non-insulin-dependent diabetes mellitus type II, an autosomal dominant disease of defective insulin secretion. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2020]
ABCC8 Gene-Disease associations (from GenCC):
  • hyperinsulinemic hypoglycemia, familial, 1
    Inheritance: AD, AR, SD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Illumina, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • diabetes mellitus, permanent neonatal 3
    Inheritance: AR, SD, AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
  • familial hyperinsulinism
    Inheritance: AR Classification: DEFINITIVE Submitted by: Myriad Women’s Health
  • diabetes mellitus
    Inheritance: SD Classification: DEFINITIVE Submitted by: Ambry Genetics
  • monogenic diabetes
    Inheritance: SD Classification: DEFINITIVE Submitted by: ClinGen
  • diabetes mellitus, noninsulin-dependent
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
  • hypoglycemia, leucine-induced
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
  • transient neonatal diabetes mellitus
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp
  • permanent neonatal diabetes mellitus
    Inheritance: AR, AD Classification: STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet
  • diabetes mellitus, transient neonatal, 2
    Inheritance: Unknown, AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • pulmonary arterial hypertension
    Inheritance: AD Classification: MODERATE Submitted by: ClinGen
  • autosomal dominant hyperinsulinism due to SUR1 deficiency
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • DEND syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • diazoxide-resistant focal hyperinsulinism due to SUR1 deficiency
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • maturity-onset diabetes of the young
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • autosomal recessive hyperinsulinism due to SUR1 deficiency
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • type 2 diabetes mellitus
    Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 11-17395834-G-A is Benign according to our data. Variant chr11-17395834-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 446777.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCC8NM_000352.6 linkc.4198+18C>T intron_variant Intron 34 of 38 ENST00000389817.8 NP_000343.2 Q09428-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCC8ENST00000389817.8 linkc.4198+18C>T intron_variant Intron 34 of 38 1 NM_000352.6 ENSP00000374467.4 Q09428-1

Frequencies

GnomAD3 genomes
AF:
0.000762
AC:
116
AN:
152190
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00261
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00144
GnomAD2 exomes
AF:
0.000222
AC:
39
AN:
175966
AF XY:
0.000129
show subpopulations
Gnomad AFR exome
AF:
0.00318
Gnomad AMR exome
AF:
0.000188
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000842
AC:
119
AN:
1413092
Hom.:
0
Cov.:
31
AF XY:
0.0000702
AC XY:
49
AN XY:
697996
show subpopulations
African (AFR)
AF:
0.00300
AC:
98
AN:
32714
American (AMR)
AF:
0.000160
AC:
6
AN:
37494
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25250
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37470
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80300
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49910
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5710
European-Non Finnish (NFE)
AF:
9.21e-7
AC:
1
AN:
1085700
Other (OTH)
AF:
0.000239
AC:
14
AN:
58544
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
8
16
24
32
40
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000762
AC:
116
AN:
152308
Hom.:
0
Cov.:
33
AF XY:
0.000792
AC XY:
59
AN XY:
74476
show subpopulations
African (AFR)
AF:
0.00260
AC:
108
AN:
41552
American (AMR)
AF:
0.000261
AC:
4
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68028
Other (OTH)
AF:
0.00142
AC:
3
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
6
11
17
22
28
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000208
Hom.:
0
Bravo
AF:
0.000805

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Benign:2
Sep 23, 2016
Athena Diagnostics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 06, 2025
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:2
Mar 01, 2022
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Oct 30, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Maturity onset diabetes mellitus in young Uncertain:1
-
Clinical Genomics, Uppaluri K&H Personalized Medicine Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

Mutations in ABCC8 gene are associated with both neonatal diabetes mellitus as well as MODY. Patients with this mutation may have a better response to sulfonylureas. However, no sufficient evidence is found to ascertain the role of this particular variant ( rs373178978) in MODY yet. -

Transitory neonatal diabetes mellitus Uncertain:1
-
Clinical Genomics, Uppaluri K&H Personalized Medicine Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

Mutations in ABCC8 gene are associated with both neonatal diabetes mellitus as well as MODY. Patients with this mutation may have a better response to sulfonylureas. However, no sufficient evidence is found to ascertain the role of this particular variant ( rs373178978 ) in neonatal diabetes yet. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
7.0
DANN
Benign
0.54
PhyloP100
0.39
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs373178978; hg19: chr11-17417381; API