chr2-168907858-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_021176.3(G6PC2):​c.847C>T​(p.Arg283Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00241 in 1,613,702 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0016 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0025 ( 9 hom. )

Consequence

G6PC2
NM_021176.3 stop_gained

Scores

2
5

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.278
Variant links:
Genes affected
G6PC2 (HGNC:28906): (glucose-6-phosphatase catalytic subunit 2) This gene encodes an enzyme belonging to the glucose-6-phosphatase catalytic subunit family. These enzymes are part of a multicomponent integral membrane system that catalyzes the hydrolysis of glucose-6-phosphate, the terminal step in gluconeogenic and glycogenolytic pathways, allowing the release of glucose into the bloodstream. The family member encoded by this gene is found in pancreatic islets and does not exhibit phosphohydrolase activity, but it is a major target of cell-mediated autoimmunity in diabetes. Several alternatively spliced transcript variants of this gene have been described, but their biological validity has not been determined. [provided by RefSeq, Jul 2008]
SPC25 (HGNC:24031): (SPC25 component of NDC80 kinetochore complex) This gene encodes a protein that may be involved in kinetochore-microtubule interaction and spindle checkpoint activity. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High Homozygotes in GnomAdExome4 at 9 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
G6PC2NM_021176.3 linkuse as main transcriptc.847C>T p.Arg283Ter stop_gained 5/5 ENST00000375363.8 NP_066999.1
G6PC2XM_011511564.4 linkuse as main transcriptc.619C>T p.Arg207Ter stop_gained 3/3 XP_011509866.1
G6PC2XM_011511565.4 linkuse as main transcriptc.499C>T p.Arg167Ter stop_gained 4/4 XP_011509867.1
G6PC2NM_001081686.2 linkuse as main transcriptc.*266C>T 3_prime_UTR_variant 4/4 NP_001075155.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
G6PC2ENST00000375363.8 linkuse as main transcriptc.847C>T p.Arg283Ter stop_gained 5/51 NM_021176.3 ENSP00000364512 P1Q9NQR9-1

Frequencies

GnomAD3 genomes
AF:
0.00158
AC:
240
AN:
152068
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000580
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000720
Gnomad ASJ
AF:
0.00433
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00276
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.00155
AC:
391
AN:
251478
Hom.:
1
AF XY:
0.00160
AC XY:
218
AN XY:
135912
show subpopulations
Gnomad AFR exome
AF:
0.000308
Gnomad AMR exome
AF:
0.000723
Gnomad ASJ exome
AF:
0.00377
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000719
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.00251
Gnomad OTH exome
AF:
0.00244
GnomAD4 exome
AF:
0.00249
AC:
3645
AN:
1461516
Hom.:
9
Cov.:
33
AF XY:
0.00240
AC XY:
1746
AN XY:
727102
show subpopulations
Gnomad4 AFR exome
AF:
0.000627
Gnomad4 AMR exome
AF:
0.000827
Gnomad4 ASJ exome
AF:
0.00394
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000638
Gnomad4 FIN exome
AF:
0.0000562
Gnomad4 NFE exome
AF:
0.00291
Gnomad4 OTH exome
AF:
0.00285
GnomAD4 genome
AF:
0.00158
AC:
240
AN:
152186
Hom.:
0
Cov.:
32
AF XY:
0.00132
AC XY:
98
AN XY:
74402
show subpopulations
Gnomad4 AFR
AF:
0.000578
Gnomad4 AMR
AF:
0.000719
Gnomad4 ASJ
AF:
0.00433
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00276
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.00279
Hom.:
4
Bravo
AF:
0.00176
TwinsUK
AF:
0.00216
AC:
8
ALSPAC
AF:
0.00337
AC:
13
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00419
AC:
36
ExAC
AF:
0.00151
AC:
183
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00398
EpiControl
AF:
0.00273

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Fasting plasma glucose level quantitative trait locus 1 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenomic Research Center, Shahid Beheshti University of Medical SciencesMar 05, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Pathogenic
0.51
CADD
Pathogenic
29
DANN
Benign
0.97
Eigen
Benign
-0.089
Eigen_PC
Benign
-0.35
FATHMM_MKL
Benign
0.65
D
MutationTaster
Benign
1.0
D
Vest4
0.78
GERP RS
-0.72

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs146779637; hg19: chr2-169764368; COSMIC: COSV56372872; COSMIC: COSV56372872; API