chrX-78042677-G-C

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 6P and 4B. PM1PP3_StrongBS2

The NM_000052.7(ATP7A):​c.3894G>C​(p.Met1298Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000752 in 1,210,097 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 28 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 23)
Exomes 𝑓: 0.000082 ( 0 hom. 28 hem. )

Consequence

ATP7A
NM_000052.7 missense

Scores

13
3

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 9.85

Publications

5 publications found
Variant links:
Genes affected
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]
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: Orphanet, Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 10 uncertain in NM_000052.7
PP3
MetaRNN computational evidence supports a deleterious effect, 0.978
BS2
High AC in GnomAdExome4 at 90 XL,AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000052.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ATP7A
NM_000052.7
MANE Select
c.3894G>Cp.Met1298Ile
missense
Exon 20 of 23NP_000043.4Q04656-1
ATP7A
NM_001282224.2
c.3660G>Cp.Met1220Ile
missense
Exon 19 of 22NP_001269153.1Q04656-5
ATP7A
NR_104109.2
n.1067G>C
non_coding_transcript_exon
Exon 7 of 10

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ATP7A
ENST00000341514.11
TSL:1 MANE Select
c.3894G>Cp.Met1298Ile
missense
Exon 20 of 23ENSP00000345728.6Q04656-1
ATP7A
ENST00000689767.1
c.3987G>Cp.Met1329Ile
missense
Exon 22 of 25ENSP00000509406.1A0A8I5KWA8
ATP7A
ENST00000343533.10
TSL:5
c.3924G>Cp.Met1308Ile
missense
Exon 21 of 24ENSP00000343026.6A0A8J9FM07

Frequencies

GnomAD3 genomes
AF:
0.00000893
AC:
1
AN:
111940
Hom.:
0
Cov.:
23
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:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000164
AC:
3
AN:
183464
AF XY:
0.0000294
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:
0.0000366
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000820
AC:
90
AN:
1098157
Hom.:
0
Cov.:
31
AF XY:
0.0000770
AC XY:
28
AN XY:
363515
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26400
American (AMR)
AF:
0.00
AC:
0
AN:
35207
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19384
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30204
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54145
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40534
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4124
European-Non Finnish (NFE)
AF:
0.000101
AC:
85
AN:
842064
Other (OTH)
AF:
0.000108
AC:
5
AN:
46095
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
4
7
11
14
18
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4
8
12
16
20
<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:
0.00000893
AC:
1
AN:
111940
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34102
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
30753
American (AMR)
AF:
0.00
AC:
0
AN:
10510
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2652
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3603
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2672
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6083
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
239
European-Non Finnish (NFE)
AF:
0.0000188
AC:
1
AN:
53241
Other (OTH)
AF:
0.00
AC:
0
AN:
1504
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.000237

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)
-
1
-
Menkes kinky-hair syndrome;C0268353:Cutis laxa, X-linked;C1845359:X-linked distal spinal muscular atrophy type 3 (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.66
D
BayesDel_noAF
Pathogenic
0.82
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.96
D
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Pathogenic
0.79
D
MetaRNN
Pathogenic
0.98
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.7
H
PhyloP100
9.9
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-3.8
D
REVEL
Pathogenic
0.97
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.96
D
Vest4
0.86
MutPred
0.87
Loss of disorder (P = 0.0955)
MVP
1.0
MPC
0.88
ClinPred
0.94
D
GERP RS
4.9
Varity_R
0.95
gMVP
0.98
Mutation Taster
=71/29
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs782499160; hg19: chrX-77298175; API