3-33510713-G-A

Variant names:

• chr3-33510713-G-A
• rs906936375
• NM_001365631.1:c.4162C>T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001365631.1(CLASP2):​c.4162C>T​(p.Pro1388Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000658 in 152,044 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: CLASP2 NM_001365631.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.53

Genes affected

CLASP2 (HGNC:17078): (cytoplasmic linker associated protein 2) Enables cytoskeletal protein binding activity; dystroglycan binding activity; and protein tyrosine kinase binding activity. Involved in several processes, including microtubule cytoskeleton organization; positive regulation of extracellular matrix organization; and regulation of supramolecular fiber organization. Located in several cellular components, including basal cortex; cortical microtubule plus-end; and ruffle membrane. Colocalizes with focal adhesion; kinetochore; and microtubule cytoskeleton. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CLASP2	NM_001365631.1	c.4162C>T	p.Pro1388Ser	missense_variant	Exon 37 of 39	ENST00000682230.1	NP_001352560.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CLASP2	ENST00000682230.1	c.4162C>T	p.Pro1388Ser	missense_variant	Exon 37 of 39		NM_001365631.1	ENSP00000507498.1

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 152044 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 152044 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74276

Gnomad4 AFR AF: 0.0000242

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Bravo AF: 0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Sep 04, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.4189C>T (p.P1397S) alteration is located in exon 38 (coding exon 38) of the CLASP2 gene. This alteration results from a C to T substitution at nucleotide position 4189, causing the proline (P) at amino acid position 1397 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.41
BayesDel_addAF	Pathogenic	0.27	D
BayesDel_noAF	Pathogenic	0.15
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.11	.;T;.;T;T;.
Eigen	Uncertain	0.62
Eigen_PC	Pathogenic	0.70
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.97	D;D;D;D;D;D
M_CAP	Benign	0.014	T
MetaRNN	Uncertain	0.58	D;D;D;D;D;D
MetaSVM	Benign	-0.54	T
PrimateAI	Uncertain	0.72	T
PROVEAN	Pathogenic	-6.1	D;D;.;D;D;.
REVEL	Uncertain	0.42
Sift	Uncertain	0.025	D;D;.;D;D;.
Sift4G	Benign	0.091	T;T;T;T;T;T
Polyphen		0.70	.;P;.;.;.;.
Vest4		0.62
MutPred		0.62		.;Loss of ubiquitination at K1400 (P = 0.0806);.;.;.;.;
MVP		0.57
MPC		1.3
ClinPred		0.96	D
GERP RS		6.1

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

LitVar

Other links and lift over

dbSNP: rs906936375; hg19: chr3-33552205;