rs587777405

Positions:

chr1-63631759-TC-T

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_002633.3(PGM1):c.661del(p.Arg221ValfsTer13) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000062 in 1,613,750 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000066 ( 0 hom. )

Consequence

PGM1
NM_002633.3 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 0.593

Variant links:

Genes affected

PGM1 (HGNC:8905): (phosphoglucomutase 1) The protein encoded by this gene is an isozyme of phosphoglucomutase (PGM) and belongs to the phosphohexose mutase family. There are several PGM isozymes, which are encoded by different genes and catalyze the transfer of phosphate between the 1 and 6 positions of glucose. In most cell types, this PGM isozyme is predominant, representing about 90% of total PGM activity. In red cells, PGM2 is a major isozyme. This gene is highly polymorphic. Mutations in this gene cause glycogen storage disease type 14. Alternativley spliced transcript variants encoding different isoforms have been identified in this gene.[provided by RefSeq, Mar 2010]

PGM1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 1-63631759-TC-T is Pathogenic according to our data. Variant chr1-63631759-TC-T is described in ClinVar as [Pathogenic]. Clinvar id is 133290.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
PGM1	NM_002633.3 linkuse as main transcript	c.661del	p.Arg221ValfsTer13	frameshift_variant	4/11	ENST00000371084.8	NP_002624.2
PGM1	NM_001172818.1 linkuse as main transcript	c.715del	p.Arg239ValfsTer13	frameshift_variant	4/11		NP_001166289.1
PGM1	NM_001172819.2 linkuse as main transcript	c.70del	p.Arg24ValfsTer13	frameshift_variant	4/11		NP_001166290.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PGM1	ENST00000371084.8 linkuse as main transcript	c.661del	p.Arg221ValfsTer13	frameshift_variant	4/11	1	NM_002633.3	ENSP00000360125	P1	P36871-1
PGM1	ENST00000650546.1 linkuse as main transcript	c.661del	p.Arg221ValfsTer13	frameshift_variant	4/12			ENSP00000497812
PGM1	ENST00000371083.4 linkuse as main transcript	c.715del	p.Arg239ValfsTer13	frameshift_variant	4/11	2		ENSP00000360124		P36871-2
PGM1	ENST00000540265.5 linkuse as main transcript	c.70del	p.Arg24ValfsTer13	frameshift_variant	4/11	2		ENSP00000443449		P36871-3

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000199

AC:

AN:

251128

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135708

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000353

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000657

AC:

AN:

1461562

Hom.:

Cov.:

AF XY:

0.0000550

AC XY:

AN XY:

727108

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000792

Gnomad4 OTH exome

AF:

0.000133

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152188

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74338

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000868

Hom.:

Bravo

AF:

0.0000264

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

PGM1-congenital disorder of glycosylation

Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Oct 31, 2022	For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 133290). This premature translational stop signal has been observed in individual(s) with PGM1 deficiency (PMID: 24499211). This variant is present in population databases (rs758688811, gnomAD 0.007%). This sequence change creates a premature translational stop signal (p.Arg221Valfs*13) in the PGM1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in PGM1 are known to be pathogenic (PMID: 22492991). -
Pathogenic, no assertion criteria provided	literature only	OMIM	Feb 06, 2014	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over