16-16190339-C-T

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM1PP3_StrongPP5_Very_Strong

The NM_001171.6(ABCC6):​c.1460G>A​(p.Arg487Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000867 in 1,614,136 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)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

ABCC6
NM_001171.6 missense

Scores

8
9
2

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 7.57
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]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PM1
In a domain ABC transmembrane type-1 1 (size 282) in uniprot entity MRP6_HUMAN there are 31 pathogenic changes around while only 9 benign (78%) in NM_001171.6
PP3
MetaRNN computational evidence supports a deleterious effect, 0.959
PP5
Variant 16-16190339-C-T is Pathogenic according to our data. Variant chr16-16190339-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 433232.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-16190339-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCC6NM_001171.6 linkc.1460G>A p.Arg487Gln missense_variant Exon 12 of 31 ENST00000205557.12 NP_001162.5
ABCC6NM_001351800.1 linkc.1118G>A p.Arg373Gln missense_variant Exon 12 of 31 NP_001338729.1
ABCC6NR_147784.1 linkn.1497G>A non_coding_transcript_exon_variant Exon 12 of 29

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCC6ENST00000205557.12 linkc.1460G>A p.Arg487Gln missense_variant Exon 12 of 31 1 NM_001171.6 ENSP00000205557.7 O95255-1
ABCC6ENST00000456970.6 linkn.1460G>A non_coding_transcript_exon_variant Exon 12 of 29 2 ENSP00000405002.2 O95255-3
ABCC6ENST00000622290.5 linkn.1460G>A non_coding_transcript_exon_variant Exon 12 of 32 5 ENSP00000483331.2 A0A8C8Q0G8

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152150
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251402
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135868
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000889
AC:
13
AN:
1461868
Hom.:
0
Cov.:
35
AF XY:
0.00000825
AC XY:
6
AN XY:
727234
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000894
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000629
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152268
Hom.:
0
Cov.:
31
AF XY:
0.0000134
AC XY:
1
AN XY:
74466
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000324
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Autosomal recessive inherited pseudoxanthoma elasticum Pathogenic:1
Mar 01, 2021
PXE International
Significance: Likely pathogenic
Review Status: no assertion criteria provided
Collection Method: research

- -

not provided Pathogenic:1
Oct 30, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 487 of the ABCC6 protein (p.Arg487Gln). This variant is present in population databases (rs72653768, gnomAD 0.009%). This missense change has been observed in individual(s) with pseudoxanthoma elasticum (PMID: 16835894, 32873932). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 433232). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt ABCC6 protein function with a positive predictive value of 95%. 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
Jun 03, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.41
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.40
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.88
D;.
Eigen
Uncertain
0.60
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.89
D;D
M_CAP
Uncertain
0.23
D
MetaRNN
Pathogenic
0.96
D;D
MetaSVM
Pathogenic
0.98
D
MutationAssessor
Uncertain
2.8
M;M
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-3.6
D;.
REVEL
Pathogenic
0.80
Sift
Pathogenic
0.0
D;.
Sift4G
Uncertain
0.0020
D;D
Polyphen
1.0
D;.
Vest4
0.98
MVP
0.93
MPC
0.43
ClinPred
0.97
D
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.74
gMVP
0.92

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

Publications

LitVar

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

Other links and lift over

dbSNP: rs72653768; hg19: chr16-16284196; API