17-44076045-T-C

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The ENST00000588558.6(G6PC3):n.*1018T>C variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0103 in 1,612,470 control chromosomes in the GnomAD database, including 94 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0069 ( 4 hom., cov: 32)

Exomes 𝑓: 0.011 ( 90 hom. )

Consequence

G6PC3
ENST00000588558.6 non_coding_transcript_exon

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.440

Publications

4 publications found

Variant links:

Genes affected

G6PC3 (HGNC:24861): (glucose-6-phosphatase catalytic subunit 3) This gene encodes the catalytic subunit of glucose-6-phosphatase (G6Pase). G6Pase is located in the endoplasmic reticulum (ER) and catalyzes the hydrolysis of glucose-6-phosphate to glucose and phosphate in the last step of the gluconeogenic and glycogenolytic pathways. Mutations in this gene result in autosomal recessive severe congenital neutropenia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

G6PC3 Gene-Disease associations (from GenCC):

autosomal recessive severe congenital neutropenia due to G6PC3 deficiency
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet

G6PC3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.76).

BP6

Variant 17-44076045-T-C is Benign according to our data. Variant chr17-44076045-T-C is described in ClinVar as Benign. ClinVar VariationId is 211056.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00691 (1052/152312) while in subpopulation NFE AF = 0.0127 (863/68022). AF 95% confidence interval is 0.012. There are 4 homozygotes in GnomAd4. There are 458 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
G6PC3	NM_138387.4 link	c.*2T>C		3_prime_UTR_variant	Exon 6 of 6	ENST00000269097.9	NP_612396.1	Q9BUM1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
G6PC3	ENST00000269097.9 link	c.*2T>C		3_prime_UTR_variant	Exon 6 of 6	1	NM_138387.4	ENSP00000269097.3		Q9BUM1

Frequencies

GnomAD3 genomes

AF:

0.00691

AC:

1052

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00229

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00327

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00290

Gnomad FIN

AF:

0.00151

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0127

Gnomad OTH

AF:

0.00573

GnomAD2 exomes

AF:

0.00643

AC:

1611

AN:

250448

AF XY:

0.00630

show subpopulations

Gnomad AFR exome

AF:

0.00228

Gnomad AMR exome

AF:

0.00286

Gnomad ASJ exome

AF:

0.000893

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00179

Gnomad NFE exome

AF:

0.0115

Gnomad OTH exome

AF:

0.00848

GnomAD4 exome

AF:

0.0106

AC:

15485

AN:

1460158

Hom.:

Cov.:

AF XY:

0.0105

AC XY:

7613

AN XY:

726528

show subpopulations

African (AFR)

AF:

0.00206

AC:

AN:

33480

American (AMR)

AF:

0.00304

AC:

136

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.000689

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00250

AC:

216

AN:

86236

European-Finnish (FIN)

AF:

0.00234

AC:

121

AN:

51762

Middle Eastern (MID)

AF:

0.000520

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0129

AC:

14363

AN:

1111978

Other (OTH)

AF:

0.00924

AC:

558

AN:

60380

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.478

Heterozygous variant carriers

935

1870

2804

3739

4674

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

540

1080

1620

2160

2700

<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:

0.00691

AC:

1052

AN:

152312

Hom.:

Cov.:

AF XY:

0.00615

AC XY:

458

AN XY:

74482

show subpopulations

African (AFR)

AF:

0.00229

AC:

AN:

41568

American (AMR)

AF:

0.00327

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.000288

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00290

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00151

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0127

AC:

863

AN:

68022

Other (OTH)

AF:

0.00567

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

114

172

229

286

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<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:

0.00909

Hom.:

Bravo

AF:

0.00703

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.0112

EpiControl

AF:

0.00948

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Dec 19, 2016

Genetic Services Laboratory, University of Chicago

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

G6PC3-related disorder

Benign:1

Mar 16, 2020

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided

Benign:1

Mar 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

G6PC3: BS1, BS2 -

Autosomal recessive severe congenital neutropenia due to G6PC3 deficiency

Benign:1

Jan 13, 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

-0.76

CADD

Benign

2.0

(source)

DANN

Benign

0.72

PhyloP100

-0.44

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over