chr6-118558866-C-T

Position:

• chr6-118558866-C-T

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_Strong BP6 BS1

The NM_002667.5(PLN):​c.-56C>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000847 in 1,417,476 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.00074 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00086 (1 hom.)
• Consequence: PLN NM_002667.5 5_prime_UTR
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:4
• Conservation: PhyloP100: 3.16

Genes affected

PLN (HGNC:9080): (phospholamban) The protein encoded by this gene is found as a pentamer and is a major substrate for the cAMP-dependent protein kinase in cardiac muscle. The encoded protein is an inhibitor of cardiac muscle sarcoplasmic reticulum Ca(2+)-ATPase in the unphosphorylated state, but inhibition is relieved upon phosphorylation of the protein. The subsequent activation of the Ca(2+) pump leads to enhanced muscle relaxation rates, thereby contributing to the inotropic response elicited in heart by beta-agonists. The encoded protein is a key regulator of cardiac diastolic function. Mutations in this gene are a cause of inherited human dilated cardiomyopathy with refractory congestive heart failure, and also familial hypertrophic cardiomyopathy. [provided by RefSeq, Apr 2016]

CEP85L (HGNC:21638): (centrosomal protein 85 like) The protein encoded by this gene was identified as a breast cancer antigen. Nothing more is known of its function at this time. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2010]

ACMG classification

Verdict is Benign. Variant got -9 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.73).
• BP6: Variant 6-118558866-C-T is Benign according to our data. Variant chr6-118558866-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 906401.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1}. Variant chr6-118558866-C-T is described in Lovd as [Benign]. Variant chr6-118558866-C-T is described in Lovd as [Likely_benign].
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000742 (113/152258) while in subpopulation NFE AF= 0.00137 (93/68010). AF 95% confidence interval is 0.00114. There are 0 homozygotes in gnomad4. There are 52 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PLN	NM_002667.5	c.-56C>T		5_prime_UTR_variant	2/2	ENST00000357525.6
CEP85L	NM_001042475.3	c.1020+6663G>A		intron_variant		ENST00000368491.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PLN	ENST00000357525.6	c.-56C>T		5_prime_UTR_variant	2/2	1	NM_002667.5	P1
CEP85L	ENST00000368491.8	c.1020+6663G>A		intron_variant		1	NM_001042475.3	P1

Frequencies

GnomAD3 genomes AF: 0.000743 AC: 113 AN: 152140 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000169

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000654

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.000189

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00137

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.000860 AC: 1088 AN: 1265218 Hom.: 1 Cov.: 18 AF XY: 0.000844 AC XY: 540 AN XY: 639712

Gnomad4 AFR exome AF: 0.000236

Gnomad4 AMR exome AF: 0.000114

Gnomad4 ASJ exome AF: 0.0000804

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.000303

Gnomad4 NFE exome AF: 0.00110

Gnomad4 OTH exome AF: 0.000630

GnomAD4 genome AF: 0.000742 AC: 113 AN: 152258 Hom.: 0 Cov.: 32 AF XY: 0.000699 AC XY: 52 AN XY: 74426

Gnomad4 AFR AF: 0.000168

Gnomad4 AMR AF: 0.000653

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000208

Gnomad4 FIN AF: 0.000189

Gnomad4 NFE AF: 0.00137

Gnomad4 OTH AF: 0.00

Alfa AF: 0.00101 Hom.: 0

Bravo AF: 0.000642

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:4

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Benign:3

Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Likely benign, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 03, 2015	- -

Dilated cardiomyopathy 1P Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

not specified Benign:1

Benign, no assertion criteria provided

clinical testing

Genome Diagnostics Laboratory, University Medical Center Utrecht

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.73
CADD	Benign	13
DANN	Benign	0.71

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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

Other links and lift over

dbSNP: rs189611501; hg19: chr6-118880029;