chr15-44459049-CA-C

Position:

• chr15-44459049-CA-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PVS1_Strong PM2

The NM_016396.3(CTDSPL2):​c.38delA​(p.Asn13fs) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: CTDSPL2 NM_016396.3 frameshift
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.114

Genes affected

CTDSPL2 (HGNC:26936): (CTD small phosphatase like 2) Enables RNA polymerase II CTD heptapeptide repeat phosphatase activity. Predicted to act upstream of or within negative regulation of BMP signaling pathway; positive regulation of protein export from nucleus; and protein dephosphorylation. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

CTDSPL2 (HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.973 CDS is truncated, and there are 0 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CTDSPL2	NM_016396.3	c.38delA	p.Asn13fs	frameshift_variant	2/13	ENST00000260327.9	NP_057480.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CTDSPL2	ENST00000260327.9	c.38delA	p.Asn13fs	frameshift_variant	2/13	1	NM_016396.3	ENSP00000260327.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Greenwood Genetic Center Diagnostic Laboratories, Greenwood Genetic Center

May 26, 2022

Gene of Uncertain Significance -

Computational scores

Source: dbNSFP v4.3

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr15-44751247;