rs63750759

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 13P and 1B. PM1PM5PP3PP5_Very_StrongBP4

The NM_001171.6(ABCC6):​c.3940C>T​(p.Arg1314Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00013 in 1,576,952 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1314Q) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.00060 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000079 ( 0 hom. )

Consequence

ABCC6
NM_001171.6 missense

Scores

10
6
3

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:7

Conservation

PhyloP100: 1.32

Publications

26 publications found
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 Gene-Disease associations (from GenCC):
  • arterial calcification, generalized, of infancy, 2
    Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
  • autosomal recessive inherited pseudoxanthoma elasticum
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Laboratory for Molecular Medicine, Orphanet, Labcorp Genetics (formerly Invitae), G2P
  • arterial calcification of infancy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 12 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 6 uncertain in NM_001171.6
PM5
Other missense variant is known to change same aminoacid residue: Variant chr16-16154973-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 402332.
PP3
Multiple lines of computational evidence support a deleterious effect 8: BayesDel_noAF, Cadd, Dann, M_CAP, MutationAssessor, PROVEAN, REVEL, REVEL [when AlphaMissense, max_spliceai, FATHMM_MKL, MetaRNN, MutationTaster, phyloP100way_vertebrate was below the threshold]
PP5
Variant 16-16154974-G-A is Pathogenic according to our data. Variant chr16-16154974-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 6564.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP4
Computational evidence support a benign effect (MetaRNN=0.3097675). . Strength limited to SUPPORTING due to the PP5.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCC6NM_001171.6 linkc.3940C>T p.Arg1314Trp missense_variant Exon 28 of 31 ENST00000205557.12 NP_001162.5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCC6ENST00000205557.12 linkc.3940C>T p.Arg1314Trp missense_variant Exon 28 of 31 1 NM_001171.6 ENSP00000205557.7 O95255-1

Frequencies

GnomAD3 genomes
AF:
0.000598
AC:
91
AN:
152108
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00212
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
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
GnomAD2 exomes
AF:
0.000189
AC:
35
AN:
184926
AF XY:
0.0000904
show subpopulations
Gnomad AFR exome
AF:
0.00218
Gnomad AMR exome
AF:
0.0000714
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000363
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000259
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000793
AC:
113
AN:
1424726
Hom.:
0
Cov.:
32
AF XY:
0.0000723
AC XY:
51
AN XY:
705360
show subpopulations
African (AFR)
AF:
0.00233
AC:
76
AN:
32584
American (AMR)
AF:
0.000102
AC:
4
AN:
39342
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25424
East Asian (EAS)
AF:
0.000133
AC:
5
AN:
37460
South Asian (SAS)
AF:
0.000111
AC:
9
AN:
81348
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50050
Middle Eastern (MID)
AF:
0.000175
AC:
1
AN:
5724
European-Non Finnish (NFE)
AF:
0.00000914
AC:
10
AN:
1093730
Other (OTH)
AF:
0.000135
AC:
8
AN:
59064
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.489
Heterozygous variant carriers
0
9
18
26
35
44
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000604
AC:
92
AN:
152226
Hom.:
0
Cov.:
31
AF XY:
0.000564
AC XY:
42
AN XY:
74426
show subpopulations
African (AFR)
AF:
0.00214
AC:
89
AN:
41546
American (AMR)
AF:
0.0000654
AC:
1
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.000194
AC:
1
AN:
5158
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68000
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
4
8
11
15
19
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000196
Hom.:
0
Bravo
AF:
0.000672
ESP6500AA
AF:
0.000686
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000216
AC:
26
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:3
Jul 26, 2022
GeneDx
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Published functional studies demonstrate a damaging effect with R1314W resulting in abnormal protein trafficking and inappropriate intracellular accumulation (Le Saux et al., 2011); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 16392638, 22209248, 10835642, 30537162, 34205333, 34906475, 21935449, 24008425, 19339160, 24352041, 23483032, 27994049, 28102862, 28416300, 27826008, 32445016, 31589614, 34440381, 33005041, 32873932) -

Jan 06, 2025
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 tryptophan, which is neutral and slightly polar, at codon 1314 of the ABCC6 protein (p.Arg1314Trp). This variant is present in population databases (rs63750759, gnomAD 0.3%). This missense change has been observed in individuals with pseudoxanthoma elasticum (PMID: 10835642, 16835894, 19339160, 30537162). ClinVar contains an entry for this variant (Variation ID: 6564). 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%. Experimental studies have shown that this missense change affects ABCC6 function (PMID: 21935449, 23483032, 27994049). This variant disrupts the p.Arg1314 amino acid residue in ABCC6. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 29722917). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic. -

Feb 16, 2025
Laboratory of Genetics, Children's Clinical University Hospital Latvia
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Autosomal recessive inherited pseudoxanthoma elasticum Pathogenic:2
Jan 13, 2012
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Mar 01, 2021
PXE International
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:research

- -

Arterial calcification, generalized, of infancy, 2 Pathogenic:1
Jan 13, 2012
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Autosomal recessive inherited pseudoxanthoma elasticum;C1867450:Pseudoxanthoma elasticum, forme fruste;C3276161:Arterial calcification, generalized, of infancy, 2 Pathogenic:1
May 08, 2024
Fulgent Genetics, Fulgent Genetics
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Pathogenic
0.42
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.94
D;.
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Uncertain
0.91
D;D
M_CAP
Pathogenic
0.39
D
MetaRNN
Benign
0.31
T;T
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
3.8
H;.
PhyloP100
1.3
PrimateAI
Uncertain
0.55
T
PROVEAN
Pathogenic
-6.5
D;.
REVEL
Pathogenic
0.91
Sift
Pathogenic
0.0
D;.
Sift4G
Pathogenic
0.0010
D;.
Polyphen
1.0
D;.
Vest4
0.98
MVP
0.96
MPC
0.42
ClinPred
0.33
T
GERP RS
2.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.98
gMVP
0.94
Mutation Taster
=22/78
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs63750759; hg19: chr16-16248831; COSMIC: COSV52742951; API