Genetic Variant NM_033395.2:c.254T>C (chr11-93667752-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_033395.2(CEP295):c.254T>C(p.Leu85Pro) variant causes a missense change. The variant allele was found at a frequency of 0.000000715 in 1,399,188 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

CEP295
NM_033395.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.29

Publications

0 publications found

Variant links:

Genes affected

CEP295 (HGNC:29366): (centrosomal protein 295) Enables microtubule binding activity. Involved in several processes, including centriole replication; positive regulation of protein acetylation; and regulation of centrosome duplication. Located in cytosol; microtubule cytoskeleton; and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

CEP295 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 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
CEP295	NM_033395.2 link	c.254T>C	p.Leu85Pro	missense_variant	Exon 3 of 30	ENST00000325212.11	NP_203753.1	Q9C0D2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CEP295	ENST00000325212.11 link	c.254T>C	p.Leu85Pro	missense_variant	Exon 3 of 30	2	NM_033395.2	ENSP00000316681.6		Q9C0D2-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.15e-7

AC:

AN:

1399188

Hom.:

Cov.:

AF XY:

0.00000145

AC XY:

AN XY:

690104

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31592

American (AMR)

AF:

0.00

AC:

AN:

35694

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25166

East Asian (EAS)

AF:

0.00

AC:

AN:

35708

South Asian (SAS)

AF:

0.00

AC:

AN:

79222

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49276

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5696

European-Non Finnish (NFE)

AF:

9.27e-7

AC:

AN:

1078848

Other (OTH)

AF:

0.00

AC:

AN:

57986

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 22, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.254T>C (p.L85P) alteration is located in exon 3 (coding exon 2) of the CEP295 gene. This alteration results from a T to C substitution at nucleotide position 254, causing the leucine (L) at amino acid position 85 to be replaced by a proline (P). 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

Pathogenic

0.91

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Uncertain

-0.040

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.041

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.85

M_CAP

Benign

0.027

MetaRNN

Uncertain

0.54

MetaSVM

Benign

-1.1

PhyloP100

6.3

PrimateAI

Uncertain

0.64

PROVEAN

Uncertain

-3.6

REVEL

Benign

0.27

Sift

Uncertain

0.0030

Sift4G

Benign

0.11

Polyphen

1.0

Vest4

0.74

MutPred

0.48

Loss of stability (P = 0.008);

MVP

0.10

MPC

0.55

ClinPred

0.99

GERP RS

5.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.89

gMVP

0.67

Mutation Taster

=53/47

polymorphism

(source)

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

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NM_033395.2:c.254T>C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over