16-16150760-T-TTTTC

Position:

• chr16-16150760-T-TTTTC

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PVS1_Strong PM2 PP5

The NM_001171.6(ABCC6):​c.4220_4221insGAAA​(p.Gln1408LysfsTer121) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (no stars).

• Frequency: Genomes: not found (cov: 33)
• Consequence: ABCC6 NM_001171.6 frameshift
• Clinical Significance: Likely pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 0.960

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]

ACMG classification

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most 50 bp of the penultimate exon, not predicted to undergo nonsense mediated mRNA decay. There are 16 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 16-16150760-T-TTTTC is Pathogenic according to our data. Variant chr16-16150760-T-TTTTC is described in ClinVar as [Likely_pathogenic]. Clinvar id is 433355.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ABCC6	NM_001171.6	c.4220_4221insGAAA	p.Gln1408LysfsTer121	frameshift_variant	30/31	ENST00000205557.12
ABCC6	NM_001351800.1	c.3878_3879insGAAA	p.Gln1294LysfsTer121	frameshift_variant	30/31
ABCC6	NR_147784.1	n.3882_3883insGAAA		non_coding_transcript_exon_variant	28/29

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ABCC6	ENST00000205557.12	c.4220_4221insGAAA	p.Gln1408LysfsTer121	frameshift_variant	30/31	1	NM_001171.6	P1
ABCC6	ENST00000456970.6	c.*1229_*1230insGAAA		3_prime_UTR_variant, NMD_transcript_variant	28/29	2
ABCC6	ENST00000622290.5	c.*392_*393insGAAA		3_prime_UTR_variant, NMD_transcript_variant	31/32	5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Autosomal recessive inherited pseudoxanthoma elasticum Pathogenic:1

Likely pathogenic, no assertion criteria provided

research

PXE International

Mar 02, 2021

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Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs72664222; hg19: chr16-16244617;