X-78011452-G-C

Variant names:

• chrX-78011452-G-C
• rs797045342
• NM_000052.7:c.1950G>C

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_000052.7(ATP7A):​c.1950G>C​(p.Trp650Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000913 in 1,094,714 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 22)
  • Exomes 𝑓: 9.1e-7 (0 hom. 0 hem.)
• Consequence: ATP7A NM_000052.7 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 10.0
• Publications: 0 publications found

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)

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.934

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.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ATP7A	NM_000052.7	MANE Select	c.1950G>C	p.Trp650Cys	missense	Exon 9 of 23	NP_000043.4	Q04656-1
	ATP7A	NM_001282224.2		c.1950G>C	p.Trp650Cys	missense	Exon 9 of 22	NP_001269153.1	Q04656-5
	ATP7A	NR_104109.2		n.285-19948G>C		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ATP7A	ENST00000341514.11	TSL:1 MANE Select	c.1950G>C	p.Trp650Cys	missense	Exon 9 of 23	ENSP00000345728.6	Q04656-1
	ATP7A	ENST00000689767.1		c.2043G>C	p.Trp681Cys	missense	Exon 11 of 25	ENSP00000509406.1	A0A8I5KWA8
	ATP7A	ENST00000343533.10	TSL:5	c.1980G>C	p.Trp660Cys	missense	Exon 10 of 24	ENSP00000343026.6	A0A8J9FM07

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome AF: 9.13e-7 AC: 1 AN: 1094714 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 360320

African (AFR) AF: 0.00 AC: 0 AN: 26347

American (AMR) AF: 0.00 AC: 0 AN: 35200

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 19356

East Asian (EAS) AF: 0.00 AC: 0 AN: 30155

South Asian (SAS) AF: 0.00 AC: 0 AN: 54051

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40371

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4122

European-Non Finnish (NFE) AF: 0.00000119 AC: 1 AN: 839116

Other (OTH) AF: 0.00 AC: 0 AN: 45996

GnomAD4 genome Cov.: 22

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Menkes kinky-hair syndrome;C0268353:Cutis laxa, X-linked;C1845359:X-linked distal spinal muscular atrophy type 3 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.74	D
BayesDel_noAF	Pathogenic	0.83
CADD	Pathogenic	33
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.79	D
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Pathogenic	0.97	D
MetaRNN	Pathogenic	0.93	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	3.7	H
PhyloP100		10
PrimateAI	Uncertain	0.75	T
PROVEAN	Pathogenic	-11	D
REVEL	Pathogenic	0.81
Sift	Uncertain	0.0060	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.87
MutPred		0.49		Loss of MoRF binding (P = 0.02)
MVP		1.0
MPC		1.1
ClinPred		1.0	D
GERP RS		5.6
Varity_R		0.81
gMVP		0.94
Mutation Taster		=2/98	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.43		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.43		Position offset: 3

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

Other links and lift over

dbSNP: rs797045342; hg19: chrX-77266949;