chrX-77969557-C-G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP3BS2

The NM_001029891.3(PGAM4):c.82G>C(p.Ala28Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000281 in 1,210,202 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 12 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000036 ( 0 hom., 1 hem., cov: 23)

Exomes 𝑓: 0.000027 ( 0 hom. 11 hem. )

Consequence

PGAM4
NM_001029891.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.26

Publications

0 publications found

Variant links:

Genes affected

PGAM4 (HGNC:21731): (phosphoglycerate mutase family member 4) This intronless gene appears to have arisen from a retrotransposition event, yet it is thought to be an expressed, protein-coding gene. The encoded protein is a member of the phosphoglycerate mutase family, a set of enzymes that catalyze the transfer of a phosphate group from 3-phosphoglycerate to 2-phosphoglycerate. [provided by RefSeq, May 2010]

PGAM4 links:

ATP7A (HGNC:869): (ATPase copper transporting alpha) This gene encodes a transmembrane protein that functions in copper transport across membranes. This protein is localized to the trans Golgi network, where it is predicted to supply copper to copper-dependent enzymes in the secretory pathway. It relocalizes to the plasma membrane under conditions of elevated extracellular copper, and functions in the efflux of copper from cells. Mutations in this gene are associated with Menkes disease, X-linked distal spinal muscular atrophy, and occipital horn syndrome. Alternatively-spliced transcript variants have been observed. [provided by RefSeq, Aug 2013]

ATP7A links:

PGK1 (HGNC:8896): (phosphoglycerate kinase 1) The protein encoded by this gene is a glycolytic enzyme that catalyzes the conversion of 1,3-diphosphoglycerate to 3-phosphoglycerate. The encoded protein may also act as a cofactor for polymerase alpha. Additionally, this protein is secreted by tumor cells where it participates in angiogenesis by functioning to reduce disulfide bonds in the serine protease, plasmin, which consequently leads to the release of the tumor blood vessel inhibitor angiostatin. The encoded protein has been identified as a moonlighting protein based on its ability to perform mechanistically distinct functions. Deficiency of the enzyme is associated with a wide range of clinical phenotypes hemolytic anemia and neurological impairment. Pseudogenes of this gene have been defined on chromosomes 19, 21 and the X chromosome. [provided by RefSeq, Jan 2014]

PGK1 Gene-Disease associations (from GenCC):

glycogen storage disease due to phosphoglycerate kinase 1 deficiency
Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P, Genomics England PanelApp

PGK1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.751

BS2

High Hemizygotes in GnomAdExome4 at 11 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PGAM4	NM_001029891.3 link	c.82G>C	p.Ala28Pro	missense_variant	Exon 1 of 1	ENST00000458128.3	NP_001025062.1	Q8N0Y7
ATP7A	NM_000052.7 link	c.-21-2064C>G		intron_variant	Intron 1 of 22	ENST00000341514.11	NP_000043.4	Q04656-1B4DRW0Q762B6
ATP7A	NM_001282224.2 link	c.-21-2064C>G		intron_variant	Intron 1 of 21		NP_001269153.1	Q04656-5B4DRW0Q762B6
ATP7A	NR_104109.2 link	n.144-2064C>G		intron_variant	Intron 1 of 9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PGAM4	ENST00000458128.3 link	c.82G>C	p.Ala28Pro	missense_variant	Exon 1 of 1	6	NM_001029891.3	ENSP00000412189.1		Q8N0Y7
ATP7A	ENST00000341514.11 link	c.-21-2064C>G		intron_variant	Intron 1 of 22	1	NM_000052.7	ENSP00000345728.6		Q04656-1

Frequencies

GnomAD3 genomes

AF:

0.0000356

AC:

AN:

112456

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000751

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000109

AC:

AN:

183132

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000245

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000273

AC:

AN:

1097746

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

363330

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26378

American (AMR)

AF:

0.00

AC:

AN:

35201

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19384

East Asian (EAS)

AF:

0.00

AC:

AN:

30206

South Asian (SAS)

AF:

0.00

AC:

AN:

54118

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40524

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3825

European-Non Finnish (NFE)

AF:

0.0000356

AC:

AN:

842075

Other (OTH)

AF:

0.00

AC:

AN:

46035

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.464

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000356

AC:

AN:

112456

Hom.:

Cov.:

AF XY:

0.0000289

AC XY:

AN XY:

34614

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31018

American (AMR)

AF:

0.00

AC:

AN:

10652

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2649

East Asian (EAS)

AF:

0.00

AC:

AN:

3561

South Asian (SAS)

AF:

0.00

AC:

AN:

2730

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6176

Middle Eastern (MID)

AF:

0.00

AC:

AN:

237

European-Non Finnish (NFE)

AF:

0.0000751

AC:

AN:

53239

Other (OTH)

AF:

0.00

AC:

AN:

1510

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 17, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.82G>C (p.A28P) alteration is located in exon 1 (coding exon 1) of the PGAM4 gene. This alteration results from a G to C substitution at nucleotide position 82, causing the alanine (A) at amino acid position 28 to be replaced by a proline (P). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

0.0080

BayesDel_noAF

Benign

-0.17

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.32

FATHMM_MKL

Benign

0.31

LIST_S2

Pathogenic

0.98

M_CAP

Benign

0.017

MetaRNN

Pathogenic

0.75

MetaSVM

Benign

-0.34

MutationAssessor

Uncertain

2.2

PhyloP100

1.3

PrimateAI

Uncertain

0.71

PROVEAN

Uncertain

-3.3

REVEL

Uncertain

0.54

Sift

Uncertain

0.010

Sift4G

Uncertain

0.0020

Polyphen

1.0

Vest4

0.53

MVP

0.67

MPC

1.6

ClinPred

0.91

GERP RS

0.12

PromoterAI

0.023

Neutral

(source)

Varity_R

0.81

gMVP

0.98

Mutation Taster

=83/17

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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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chrX-77969557-C-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over