dbSNP rs58668703: ABCC6:p.Arg1418Arg (chr16-16150727-C-T) – ACMG Classification: Benign (-19 pts)

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_001171.6(ABCC6):c.4254G>A(p.Arg1418Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.01 in 1,613,896 control chromosomes in the GnomAD database, including 110 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. R1418R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0077 ( 10 hom., cov: 33)

Exomes 𝑓: 0.010 ( 100 hom. )

Consequence

ABCC6
NM_001171.6 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:13

Conservation

PhyloP100: 0.677

Publications

5 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

ABCC6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.37).

BP6

Variant 16-16150727-C-T is Benign according to our data. Variant chr16-16150727-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 433357.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.677 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00768 (1170/152354) while in subpopulation NFE AF = 0.0129 (875/68044). AF 95% confidence interval is 0.0122. There are 10 homozygotes in GnomAd4. There are 533 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 10 AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001171.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ABCC6	NM_001171.6	MANE Select	c.4254G>A	p.Arg1418Arg	synonymous	Exon 30 of 31	NP_001162.5
ABCC6	NM_001440309.1		c.4221G>A	p.Arg1407Arg	synonymous	Exon 30 of 31	NP_001427238.1
ABCC6	NM_001440310.1		c.4086G>A	p.Arg1362Arg	synonymous	Exon 29 of 30	NP_001427239.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ABCC6	ENST00000205557.12	TSL:1 MANE Select	c.4254G>A	p.Arg1418Arg	synonymous	Exon 30 of 31	ENSP00000205557.7
ABCC6	ENST00000456970.6	TSL:2	n.*1263G>A		non_coding_transcript_exon	Exon 28 of 29	ENSP00000405002.2
ABCC6	ENST00000622290.5	TSL:5	n.*426G>A		non_coding_transcript_exon	Exon 31 of 32	ENSP00000483331.2

Frequencies

GnomAD3 genomes

AF:

0.00769

AC:

1170

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00188

Gnomad AMI

AF:

0.00329

Gnomad AMR

AF:

0.00517

Gnomad ASJ

AF:

0.00922

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000827

Gnomad FIN

AF:

0.00687

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.0129

Gnomad OTH

AF:

0.0115

GnomAD2 exomes

AF:

0.00711

AC:

1778

AN:

250098

AF XY:

0.00704

show subpopulations

Gnomad AFR exome

AF:

0.00148

Gnomad AMR exome

AF:

0.00310

Gnomad ASJ exome

AF:

0.00408

Gnomad EAS exome

AF:

0.0000545

Gnomad FIN exome

AF:

0.00955

Gnomad NFE exome

AF:

0.0116

Gnomad OTH exome

AF:

0.00934

GnomAD4 exome

AF:

0.0103

AC:

15001

AN:

1461542

Hom.:

100

Cov.:

AF XY:

0.00987

AC XY:

7177

AN XY:

727048

show subpopulations

African (AFR)

AF:

0.00185

AC:

AN:

33480

American (AMR)

AF:

0.00329

AC:

147

AN:

44712

Ashkenazi Jewish (ASJ)

AF:

0.00459

AC:

120

AN:

26132

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39694

South Asian (SAS)

AF:

0.000847

AC:

AN:

86222

European-Finnish (FIN)

AF:

0.00937

AC:

499

AN:

53246

Middle Eastern (MID)

AF:

0.00520

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0122

AC:

13538

AN:

1111898

Other (OTH)

AF:

0.00878

AC:

530

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

1117

2234

3350

4467

5584

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

496

992

1488

1984

2480

<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:

0.00768

AC:

1170

AN:

152354

Hom.:

Cov.:

AF XY:

0.00715

AC XY:

533

AN XY:

74506

show subpopulations

African (AFR)

AF:

0.00188

AC:

AN:

41580

American (AMR)

AF:

0.00516

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00922

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.000828

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00687

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00680

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0129

AC:

875

AN:

68044

Other (OTH)

AF:

0.0114

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

126

190

253

316

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<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:

0.0105

Hom.:

Bravo

AF:

0.00720

Asia WGS

AF:

0.00202

AC:

AN:

3478

EpiCase

AF:

0.0140

EpiControl

AF:

0.0112

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:13

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:5

Sep 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

ABCC6: BP4, BP7, BS1, BS2

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

Jan 10, 2020

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 17920311, 16127278)

Autosomal recessive inherited pseudoxanthoma elasticum

Benign:3

Mar 01, 2021

PXE International

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:research

Jan 06, 2020

Reproductive Health Research and Development, BGI Genomics

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:curation

NM_001171.5:c.4254G>A in the ABCC6 gene has an allele frequency of 0.012 in European (non-Finnish) subpopulation in the gnomAD database. It is a synonymous (silent) variant for which splicing prediction algorithms predict no impact to the splice consensus sequence nor the creation of a new splice site and the nucleotide is not highly conserved. Schulza et al reported six patients with abdominal aortic aneurysm. Taken together, we interprete this variant as Benign/Likely benign variant. ACMG/AMP criteria applied: BS1, BP7.

Dec 05, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not specified

Benign:2

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Clinical Genetics, Academic Medical Center

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Arterial calcification, generalized, of infancy, 2

Benign:1

Dec 05, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Pseudoxanthoma elasticum, forme fruste

Benign:1

Dec 05, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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

Benign:1

Dec 17, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.37

CADD

Benign

(source)

DANN

Benign

0.89

PhyloP100

0.68

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.13

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over