chr17-42904082-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000151.4(G6PC1):​c.340+42C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00433 in 1,312,724 control chromosomes in the GnomAD database, including 147 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.018 ( 75 hom., cov: 31)
Exomes 𝑓: 0.0025 ( 72 hom. )

Consequence

G6PC1
NM_000151.4 intron

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.163
Variant links:
Genes affected
G6PC1 (HGNC:4056): (glucose-6-phosphatase catalytic subunit 1) Glucose-6-phosphatase (G6Pase) is a multi-subunit integral membrane protein of the endoplasmic reticulum that is composed of a catalytic subunit and transporters for G6P, inorganic phosphate, and glucose. This gene (G6PC) is one of the three glucose-6-phosphatase catalytic-subunit-encoding genes in human: G6PC, G6PC2 and G6PC3. Glucose-6-phosphatase catalyzes the hydrolysis of D-glucose 6-phosphate to D-glucose and orthophosphate and is a key enzyme in glucose homeostasis, functioning in gluconeogenesis and glycogenolysis. Mutations in this gene cause glycogen storage disease type I (GSD1). This disease, also known as von Gierke disease, is a metabolic disorder characterized by severe hypoglycemia associated with the accumulation of glycogen and fat in the liver and kidneys.[provided by RefSeq, Feb 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.88).
BP6
Variant 17-42904082-C-T is Benign according to our data. Variant chr17-42904082-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 255351.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0581 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
G6PC1NM_000151.4 linkuse as main transcriptc.340+42C>T intron_variant ENST00000253801.7
G6PC1NM_001270397.2 linkuse as main transcriptc.340+42C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
G6PC1ENST00000253801.7 linkuse as main transcriptc.340+42C>T intron_variant 1 NM_000151.4 P1P35575-1
G6PC1ENST00000585489.1 linkuse as main transcriptc.340+42C>T intron_variant 5
G6PC1ENST00000592383.5 linkuse as main transcriptc.340+42C>T intron_variant 2 P35575-2
G6PC1ENST00000588481.1 linkuse as main transcriptn.447C>T non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.0179
AC:
2723
AN:
152114
Hom.:
75
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0601
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00838
Gnomad ASJ
AF:
0.00835
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000189
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.000603
Gnomad OTH
AF:
0.0144
GnomAD3 exomes
AF:
0.00549
AC:
1379
AN:
251074
Hom.:
33
AF XY:
0.00420
AC XY:
570
AN XY:
135710
show subpopulations
Gnomad AFR exome
AF:
0.0632
Gnomad AMR exome
AF:
0.00437
Gnomad ASJ exome
AF:
0.0111
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000564
Gnomad OTH exome
AF:
0.00392
GnomAD4 exome
AF:
0.00254
AC:
2953
AN:
1160492
Hom.:
72
Cov.:
16
AF XY:
0.00225
AC XY:
1331
AN XY:
591412
show subpopulations
Gnomad4 AFR exome
AF:
0.0646
Gnomad4 AMR exome
AF:
0.00508
Gnomad4 ASJ exome
AF:
0.00976
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000748
Gnomad4 FIN exome
AF:
0.000169
Gnomad4 NFE exome
AF:
0.000428
Gnomad4 OTH exome
AF:
0.00634
GnomAD4 genome
AF:
0.0179
AC:
2729
AN:
152232
Hom.:
75
Cov.:
31
AF XY:
0.0175
AC XY:
1304
AN XY:
74428
show subpopulations
Gnomad4 AFR
AF:
0.0601
Gnomad4 AMR
AF:
0.00837
Gnomad4 ASJ
AF:
0.00835
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000189
Gnomad4 NFE
AF:
0.000603
Gnomad4 OTH
AF:
0.0142
Alfa
AF:
0.00936
Hom.:
5
Bravo
AF:
0.0204
Asia WGS
AF:
0.00375
AC:
13
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxApr 02, 2019- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Glycogen storage disease due to glucose-6-phosphatase deficiency type IA Benign:1
Benign, no assertion criteria providedclinical testingNatera, Inc.Apr 12, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.88
CADD
Benign
0.16
DANN
Benign
0.71
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.3

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: rs116797100; hg19: chr17-41056099; API