rs1554181304

Variant names:

• chr6-47576523-GC-CT
• rs1554181304
• NM_012120.3:c.730-1_730delGCinsCT

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PVS1_Moderate PP5_Moderate

The NM_012120.3(CD2AP):​c.730-1_730delGCinsCT​(p.Pro244Ser) variant causes a splice acceptor, missense, splice region, intron change. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Pathogenic (★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: CD2AP NM_012120.3 splice_acceptor, missense, splice_region, intron
• Clinical Significance: Pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 4.31
• Publications: 1 publications found

Genes affected

CD2AP (HGNC:14258): (CD2 associated protein) This gene encodes a scaffolding molecule that regulates the actin cytoskeleton. The protein directly interacts with filamentous actin and a variety of cell membrane proteins through multiple actin binding sites, SH3 domains, and a proline-rich region containing binding sites for SH3 domains. The cytoplasmic protein localizes to membrane ruffles, lipid rafts, and the leading edges of cells. It is implicated in dynamic actin remodeling and membrane trafficking that occurs during receptor endocytosis and cytokinesis. Haploinsufficiency of this gene is implicated in susceptibility to glomerular disease. [provided by RefSeq, Jul 2008]

CD2AP Gene-Disease associations (from GenCC):

• focal segmental glomerulosclerosis 3, susceptibility to

  Inheritance: AD, AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• familial idiopathic steroid-resistant nephrotic syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

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

• PVS1: Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.041145835 fraction of the gene. Cryptic splice site detected, with MaxEntScore 6.5, offset of 15, new splice context is: tctactccttaatcctacAGtca. Cryptic site results in inframe change. If cryptic site found is not functional and variant results in exon loss, it results in frameshift change.
• PP5: Variant 6-47576523-GC-CT is Pathogenic according to our data. Variant chr6-47576523-GC-CT is described in ClinVar as Pathogenic. ClinVar VariationId is 5703.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012120.3. 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
	CD2AP	NM_012120.3	MANE Select	c.730-1_730delGCinsCT	p.Pro244Ser	splice_acceptor missense splice_region intron	N/A	NP_036252.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CD2AP	ENST00000359314.5	TSL:1 MANE Select	c.730-1_730delGCinsCT	p.Pro244Ser	splice_acceptor missense splice_region intron	N/A	ENSP00000352264.5
	CD2AP	ENST00000865253.1		c.733-1_733delGCinsCT	p.Pro245Ser	splice_acceptor missense splice_region intron	N/A	ENSP00000535312.1
	CD2AP	ENST00000931707.1		c.730-1_730delGCinsCT	p.Pro244Ser	splice_acceptor missense splice_region intron	N/A	ENSP00000601766.1

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Focal segmental glomerulosclerosis 3 (1)
1	-	-	Focal segmental glomerulosclerosis 3, susceptibility to (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		4.3
Mutation Taster		=7/193	disease causing (fs/PTC)

Splicing

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

Other links and lift over

dbSNP: rs1554181304; hg19: chr6-47544259;