rs63749823

chr16-16154953-C-T

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1 PM2 PP3_Strong PP5_Moderate

The NM_001171.6(ABCC6):c.3961G>A(p.Gly1321Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,110 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 31)
• Consequence: ABCC6 NM_001171.6 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 6.15

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 Pathogenic. Variant got 10 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 5 uncertain in NM_001171.6
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.991
• PP5: Variant 16-16154953-C-T is Pathogenic according to our data. Variant chr16-16154953-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 6580.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr16-16154953-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ABCC6	NM_001171.6	c.3961G>A	p.Gly1321Ser	missense_variant	28/31	ENST00000205557.12
ABCC6	NM_001351800.1	c.3619G>A	p.Gly1207Ser	missense_variant	28/31
ABCC6	NR_147784.1	n.3623G>A		non_coding_transcript_exon_variant	26/29

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ABCC6	ENST00000205557.12	c.3961G>A	p.Gly1321Ser	missense_variant	28/31	1	NM_001171.6	P1
ABCC6	ENST00000576204.6	n.824G>A		non_coding_transcript_exon_variant	1/2	5
ABCC6	ENST00000456970.6	c.*970G>A		3_prime_UTR_variant, NMD_transcript_variant	26/29	2
ABCC6	ENST00000622290.5	c.*133G>A		3_prime_UTR_variant, NMD_transcript_variant	29/32	5

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152110 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152110 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 74312

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000378

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Autosomal recessive inherited pseudoxanthoma elasticum Pathogenic:2

Pathogenic, no assertion criteria provided	literature only	OMIM	Oct 01, 2002	- -
Likely pathogenic, criteria provided, single submitter	research	PXE International	Mar 01, 2021	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.31
BayesDel_addAF	Pathogenic	0.53	D
BayesDel_noAF	Pathogenic	0.52
Cadd	Uncertain	25
Dann	Uncertain	1.0
DEOGEN2	Pathogenic	0.94	D;.
Eigen	Uncertain	0.49
Eigen_PC	Uncertain	0.31
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Uncertain	0.97	D;D
M_CAP	Pathogenic	0.37	D
MetaRNN	Pathogenic	0.99	D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	4.0	H;.
MutationTaster	Benign	1.0	A
PrimateAI	Uncertain	0.54	T
PROVEAN	Pathogenic	-4.9	D;.
REVEL	Pathogenic	0.92
Sift	Uncertain	0.0020	D;.
Sift4G	Pathogenic	0.0	D;.
Polyphen		1.0	D;.
Vest4		0.95
MutPred		0.99		Gain of glycosylation at G1321 (P = 0.0804);.;
MVP		0.90
MPC		0.41
ClinPred		0.98	D
GERP RS		3.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.76
gMVP		0.92

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

Other links and lift over

dbSNP: rs63749823; hg19: chr16-16248810;