13-51946368-G-C

Variant names:

• chr13-51946368-G-C
• rs746358240
• NM_000053.4:c.2976C>G

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2 BP4_Strong BP6_Moderate BP7

The NM_000053.4(ATP7B):​c.2976C>G​(p.Pro992Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. P992P) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: ATP7B NM_000053.4 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.539
• Publications: 0 publications found

Genes affected

ATP7B (HGNC:870): (ATPase copper transporting beta) This gene is a member of the P-type cation transport ATPase family and encodes a protein with several membrane-spanning domains, an ATPase consensus sequence, a hinge domain, a phosphorylation site, and at least 2 putative copper-binding sites. This protein is a monomer, and functions as a copper-transporting ATPase which exports copper out of the cells, such as the efflux of hepatic copper into the bile. Alternate transcriptional splice variants, encoding different isoforms with distinct cellular localizations, have been characterized. Mutations in this gene have been associated with Wilson disease which is characterized by copper accumulation. [provided by RefSeq, Dec 2019]

ATP7B Gene-Disease associations (from GenCC):

• Wilson disease

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Genomics England PanelApp, Orphanet, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.51).
• BP6: Variant 13-51946368-G-C is Benign according to our data. Variant chr13-51946368-G-C is described in ClinVar as Likely_benign. ClinVar VariationId is 2763093.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=0.539 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000053.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ATP7B	NM_000053.4	MANE Select	c.2976C>G	p.Pro992Pro	synonymous	Exon 13 of 21	NP_000044.2
	ATP7B	NM_001406511.1		c.2976C>G	p.Pro992Pro	synonymous	Exon 14 of 22	NP_001393440.1
	ATP7B	NM_001406512.1		c.2976C>G	p.Pro992Pro	synonymous	Exon 14 of 22	NP_001393441.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ATP7B	ENST00000242839.10	TSL:1 MANE Select	c.2976C>G	p.Pro992Pro	synonymous	Exon 13 of 21	ENSP00000242839.5
	ATP7B	ENST00000634844.1	TSL:1	c.2832C>G	p.Pro944Pro	synonymous	Exon 13 of 21	ENSP00000489398.1
	ATP7B	ENST00000448424.7	TSL:1	c.2724C>G	p.Pro908Pro	synonymous	Exon 11 of 19	ENSP00000416738.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Wilson disease Benign:1

Sep 24, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.51
CADD	Benign	8.0
DANN	Benign	0.63
PhyloP100		0.54
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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

Other links and lift over

dbSNP: rs746358240; hg19: chr13-52520504;