chr5-149981564-AT-A

Position:

• chr5-149981564-AT-A

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1_Strong PM2 PP5_Moderate

The ENST00000286298.5(SLC26A2):​c.1976del​(p.Leu659Ter) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SLC26A2 ENST00000286298.5 frameshift
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:5
• Conservation: PhyloP100: 7.68

Genes affected

SLC26A2 (HGNC:10994): (solute carrier family 26 member 2) The diastrophic dysplasia sulfate transporter is a transmembrane glycoprotein implicated in the pathogenesis of several human chondrodysplasias. It apparently is critical in cartilage for sulfation of proteoglycans and matrix organization. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 17 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 5-149981564-AT-A is Pathogenic according to our data. Variant chr5-149981564-AT-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 56018.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr5-149981564-AT-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLC26A2	NM_000112.4	c.1976del	p.Leu659Ter	frameshift_variant	3/3	ENST00000286298.5	NP_000103.2
SLC26A2	XM_017009191.3	c.1976del	p.Leu659Ter	frameshift_variant	3/4		XP_016864680.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLC26A2	ENST00000286298.5	c.1976del	p.Leu659Ter	frameshift_variant	3/3	1	NM_000112.4	ENSP00000286298	P1
SLC26A2	ENST00000503336.1	c.372+3218del		intron_variant		3		ENSP00000426053

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:5

Revision: criteria provided, single submitter

Submissions by phenotype

Diastrophic dysplasia Pathogenic:2

Likely pathogenic, no assertion criteria provided	literature only	Juha Muilu Group; Institute for Molecular Medicine Finland (FIMM)	-	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	Counsyl	Sep 19, 2016	- -

Atelosteogenesis type II Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Counsyl

Sep 19, 2016

- -

Multiple epiphyseal dysplasia type 4 Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Counsyl

Sep 19, 2016

- -

Achondrogenesis, type IB Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Counsyl

Sep 19, 2016

- -

Computational scores

Source: dbNSFP v4.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.080		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

Other links and lift over

dbSNP: rs386833499; hg19: chr5-149361127;