2-168907710-G-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_021176.3(G6PC2):​c.699G>A​(p.Leu233=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00157 in 1,614,102 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0014 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0016 ( 2 hom. )

Consequence

G6PC2
NM_021176.3 synonymous

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.233
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 Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.51).
BP6
Variant 2-168907710-G-A is Benign according to our data. Variant chr2-168907710-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3041913.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=0.233 with no splicing effect.
BS2
High Homozygotes in GnomAdExome4 at 2 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
G6PC2NM_021176.3 linkuse as main transcriptc.699G>A p.Leu233= synonymous_variant 5/5 ENST00000375363.8 NP_066999.1
G6PC2XM_011511564.4 linkuse as main transcriptc.471G>A p.Leu157= synonymous_variant 3/3 XP_011509866.1
G6PC2XM_011511565.4 linkuse as main transcriptc.351G>A p.Leu117= synonymous_variant 4/4 XP_011509867.1
G6PC2NM_001081686.2 linkuse as main transcriptc.*118G>A 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.699G>A p.Leu233= synonymous_variant 5/51 NM_021176.3 ENSP00000364512 P1Q9NQR9-1

Frequencies

GnomAD3 genomes
AF:
0.00143
AC:
217
AN:
152124
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000410
Gnomad AMI
AF:
0.0175
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.0000943
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00256
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.00117
AC:
293
AN:
251486
Hom.:
1
AF XY:
0.00129
AC XY:
175
AN XY:
135916
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.000289
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.000277
Gnomad NFE exome
AF:
0.00230
Gnomad OTH exome
AF:
0.000977
GnomAD4 exome
AF:
0.00159
AC:
2319
AN:
1461860
Hom.:
2
Cov.:
33
AF XY:
0.00153
AC XY:
1113
AN XY:
727232
show subpopulations
Gnomad4 AFR exome
AF:
0.000508
Gnomad4 AMR exome
AF:
0.000358
Gnomad4 ASJ exome
AF:
0.0000765
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000243
Gnomad4 FIN exome
AF:
0.000356
Gnomad4 NFE exome
AF:
0.00195
Gnomad4 OTH exome
AF:
0.00111
GnomAD4 genome
AF:
0.00144
AC:
219
AN:
152242
Hom.:
0
Cov.:
32
AF XY:
0.00116
AC XY:
86
AN XY:
74436
show subpopulations
Gnomad4 AFR
AF:
0.000409
Gnomad4 AMR
AF:
0.000327
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.0000943
Gnomad4 NFE
AF:
0.00259
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.00182
Hom.:
0
Bravo
AF:
0.00121
EpiCase
AF:
0.00234
EpiControl
AF:
0.00314

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

G6PC2-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 02, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.51
CADD
Benign
3.4
DANN
Benign
0.78

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: rs144077223; hg19: chr2-169764220; COSMIC: COSV56371693; API