16-16169798-A-G

Variant names:

• chr16-16169798-A-G
• rs1555510407
• NM_001171.6:c.2843T>C

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001171.6(ABCC6):​c.2843T>C​(p.Leu948Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 33)
• Consequence: ABCC6 NM_001171.6 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 2.16
• Publications: 1 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.892

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ABCC6	NM_001171.6	MANE Select	c.2843T>C	p.Leu948Pro	missense	Exon 22 of 31	NP_001162.5
	ABCC6	NM_001440309.1		c.2810T>C	p.Leu937Pro	missense	Exon 22 of 31	NP_001427238.1
	ABCC6	NM_001440310.1		c.2675T>C	p.Leu892Pro	missense	Exon 21 of 30	NP_001427239.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ABCC6	ENST00000205557.12	TSL:1 MANE Select	c.2843T>C	p.Leu948Pro	missense	Exon 22 of 31	ENSP00000205557.7
	ABCC6	ENST00000456970.6	TSL:2	n.*52T>C		non_coding_transcript_exon	Exon 21 of 29	ENSP00000405002.2
	ABCC6	ENST00000622290.5	TSL:5	n.2843T>C		non_coding_transcript_exon	Exon 22 of 32	ENSP00000483331.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
-	1	-	Autosomal recessive inherited pseudoxanthoma elasticum (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Pathogenic	0.30	D
BayesDel_noAF	Pathogenic	0.19
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.50	T
Eigen	Benign	-0.18
Eigen_PC	Benign	-0.37
FATHMM_MKL	Benign	0.17	N
LIST_S2	Benign	0.65	T
M_CAP	Pathogenic	0.50	D
MetaRNN	Pathogenic	0.89	D
MetaSVM	Uncertain	0.14	D
MutationAssessor	Uncertain	2.9	M
PhyloP100		2.2
PrimateAI	Benign	0.34	T
PROVEAN	Uncertain	-3.3	D
REVEL	Uncertain	0.59
Sift	Uncertain	0.012	D
Sift4G	Uncertain	0.015	D
Polyphen		0.99	D
Vest4		0.84
MutPred		0.53		Gain of glycosylation at L948 (P = 0.0665)
MVP		0.82
MPC		0.41
ClinPred		0.82	D
GERP RS		2.6
Varity_R		0.79
gMVP		0.71
Mutation Taster		=31/69	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs1555510407; hg19: chr16-16263655;