3-101726653-GA-G

Position:

• chr3-101726653-GA-G

Variant summary

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

The NM_024548.4(CEP97):​c.105delA​(p.Ala36fs) variant causes a frameshift change. The variant allele was found at a frequency of 0.00000137 in 1,457,344 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: CEP97 NM_024548.4 frameshift
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.66

Genes affected

CEP97 (HGNC:26244): (centrosomal protein 97) Predicted to enable calmodulin binding activity. Involved in negative regulation of cilium assembly and regulation of mitotic spindle assembly. Located in centriolar satellite and cytosol. Part of protein-containing complex. [provided by Alliance of Genome Resources, Apr 2022]

CEP97 (HGNC:):

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/exons	MANE	Protein	UniProt
CEP97	NM_024548.4	c.105delA	p.Ala36fs	frameshift_variant	2/11	ENST00000341893.8	NP_078824.2
CEP97	NM_001410784.1	c.105delA	p.Ala36fs	frameshift_variant	2/10		NP_001397713.1
CEP97	NM_001303401.2	c.105delA	p.Ala36fs	frameshift_variant	2/11		NP_001290330.1
CEP97	NM_001410785.1	c.105delA	p.Ala36fs	frameshift_variant	2/10		NP_001397714.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CEP97	ENST00000341893.8	c.105delA	p.Ala36fs	frameshift_variant	2/11	1	NM_024548.4	ENSP00000342510.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1457344 Hom.: 0 Cov.: 27 AF XY: 0.00000138 AC XY: 1 AN XY: 725272

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

EpiCase AF: 0.0000547

EpiControl AF: 0.00

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

Labcorp Genetics (formerly Invitae), Labcorp

Oct 24, 2023

This sequence change creates a premature translational stop signal (p.Ala36Leufs*6) in the CEP97 gene. It is expected to result in an absent or disrupted protein product. However, the current clinical and genetic evidence is not sufficient to establish whether loss-of-function variants in CEP97 cause disease. This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with CEP97-related conditions. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant 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: chr3-101445497;