16-16177499-AT-A

Position:

chr16-16177499-AT-A

Variant summary

Our verdict is Pathogenic. Variant got 15 ACMG points: 16P and 1B. PVS1PP5_Very_StrongBS2_Supporting

The NM_001171.6(ABCC6):c.2542del(p.Met848CysfsTer83) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000198 in 1,614,154 control chromosomes in the GnomAD database, including 2 homozygotes. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00020 ( 2 hom. )

Consequence

ABCC6
NM_001171.6 frameshift

Scores

Not classified

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:2U:1

Conservation

PhyloP100: 1.46

Variant links:

Genes affected

ABCC6 (HGNC:57): (ATP binding cassette subfamily C member 6) The protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). The encoded protein, a member of the MRP subfamily, is involved in multi-drug resistance. Mutations in this gene cause pseudoxanthoma elasticum. Alternatively spliced transcript variants that encode different proteins have been described for this gene. [provided by RefSeq, Jul 2008]

ABCC6 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 15 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PP5

Variant 16-16177499-AT-A is Pathogenic according to our data. Variant chr16-16177499-AT-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 433283.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-16177499-AT-A is described in Lovd as [Pathogenic].

BS2

High Homozygotes in GnomAdExome4 at 2 AD,AR,Digenic geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
ABCC6	NM_001171.6 linkuse as main transcript	c.2542del	p.Met848CysfsTer83	frameshift_variant	19/31	ENST00000205557.12	NP_001162.5
ABCC6	NM_001351800.1 linkuse as main transcript	c.2200del	p.Val734CysfsTer83	frameshift_variant	19/31		NP_001338729.1
ABCC6	NR_147784.1 linkuse as main transcript	n.2452+1298del		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ABCC6	ENST00000205557.12 linkuse as main transcript	c.2542del	p.Met848CysfsTer83	frameshift_variant	19/31	1	NM_001171.6	ENSP00000205557	P1	O95255-1
ABCC6	ENST00000576683.1 linkuse as main transcript	n.22del		non_coding_transcript_exon_variant	1/3	3
ABCC6	ENST00000622290.5 linkuse as main transcript	c.2542del	p.Met848CysfsTer83	frameshift_variant, NMD_transcript_variant	19/32	5		ENSP00000483331
ABCC6	ENST00000456970.6 linkuse as main transcript	c.2415+1298del		intron_variant, NMD_transcript_variant		2		ENSP00000405002		O95255-3

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152180

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:

0.00424

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000211

AC:

AN:

251422

Hom.:

AF XY:

0.000213

AC XY:

AN XY:

135912

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00288

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000202

AC:

296

AN:

1461856

Hom.:

Cov.:

AF XY:

0.000193

AC XY:

140

AN XY:

727228

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00730

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000993

GnomAD4 genome

AF:

0.000151

AC:

AN:

152298

Hom.:

Cov.:

AF XY:

0.000201

AC XY:

AN XY:

74488

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00425

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.000162

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:2Uncertain:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 25, 2024

This sequence change creates a premature translational stop signal (p.Val848Cysfs*83) in the ABCC6 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in ABCC6 are known to be pathogenic (PMID: 11536079, 17617515). This variant is present in population databases (rs67867306, gnomAD 0.3%). This premature translational stop signal has been observed in individuals with pseudoxanthoma elasticum (PMID: 28912966). ClinVar contains an entry for this variant (Variation ID: 433283). For these reasons, this variant has been classified as Pathogenic. -

Autosomal recessive inherited pseudoxanthoma elasticum;C1867450:Pseudoxanthoma elasticum, forme fruste;C3276161:Arterial calcification, generalized, of infancy, 2

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Sep 27, 2021

- -

Autosomal recessive inherited pseudoxanthoma elasticum

Uncertain:1

Uncertain significance, no assertion criteria provided

research

PXE International

Mar 01, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over