16-16190247-G-C

Variant names:

• chr16-16190247-G-C
• rs72650700
• NM_001171.6:c.1552C>G

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2 PM5 PP3_Strong

The NM_001171.6(ABCC6):​c.1552C>G​(p.Arg518Gly) 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R518Q) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 31)
• Consequence: ABCC6 NM_001171.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.99
• Publications: 0 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: Labcorp Genetics (formerly Invitae), G2P, Laboratory for Molecular Medicine, Orphanet
• inherited pseudoxanthoma elasticum

  Inheritance: SD Classification: DEFINITIVE Submitted by: ClinGen
• arterial calcification of infancy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr16-16190246-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 265018.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.992

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ABCC6	NM_001171.6	MANE Select	c.1552C>G	p.Arg518Gly	missense	Exon 12 of 31	NP_001162.5
	ABCC6	NM_001440309.1		c.1552C>G	p.Arg518Gly	missense	Exon 12 of 31	NP_001427238.1
	ABCC6	NM_001440310.1		c.1552C>G	p.Arg518Gly	missense	Exon 12 of 30	NP_001427239.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ABCC6	ENST00000205557.12	TSL:1 MANE Select	c.1552C>G	p.Arg518Gly	missense	Exon 12 of 31	ENSP00000205557.7	O95255-1
	ABCC6	ENST00000909083.1		c.1552C>G	p.Arg518Gly	missense	Exon 12 of 32	ENSP00000579142.1
	ABCC6	ENST00000909090.1		c.1552C>G	p.Arg518Gly	missense	Exon 12 of 32	ENSP00000579149.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.82
BayesDel_addAF	Pathogenic	0.43	D
BayesDel_noAF	Pathogenic	0.38
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.90	D
Eigen	Uncertain	0.52
Eigen_PC	Uncertain	0.33
FATHMM_MKL	Benign	0.74	D
LIST_S2	Uncertain	0.88	D
M_CAP	Uncertain	0.28	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Pathogenic	0.94	D
MutationAssessor	Pathogenic	3.8	H
PhyloP100		2.0
PrimateAI	Benign	0.46	T
PROVEAN	Pathogenic	-6.4	D
REVEL	Pathogenic	0.81
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0030	D
Polyphen		1.0	D
Vest4		0.95
MutPred		0.93		Loss of stability (P = 0.1454)
MVP		0.84
MPC		0.46
ClinPred		0.99	D
GERP RS		3.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.86
gMVP		0.93
Mutation Taster		=26/74	disease causing

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

Other links and lift over

dbSNP: rs72650700; hg19: chr16-16284104;