rs140306974

Positions:

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_001375405.1(CEP120):c.2647C>T(p.Arg883Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000123 in 1,613,560 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00059 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000074 ( 0 hom. )

Consequence

CEP120
NM_001375405.1 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:2

Conservation

PhyloP100: 7.16

Variant links:

Genes affected

CEP120 (HGNC:26690): (centrosomal protein 120) This gene encodes a protein that functions in the microtubule-dependent coupling of the nucleus and the centrosome. A similar protein in mouse plays a role in both interkinetic nuclear migration, which is a characteristic pattern of nuclear movement in neural progenitors, and in neural progenitor self-renewal. Mutations in this gene are predicted to result in neurogenic defects. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009]

CEP120 links:

CEP120 (HGNC:):

CEP120 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.03636524).

BP6

Variant 5-123350023-G-A is Benign according to our data. Variant chr5-123350023-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 542763.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000591 (90/152160) while in subpopulation AFR AF= 0.0019 (79/41528). AF 95% confidence interval is 0.00156. There are 1 homozygotes in gnomad4. There are 47 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CEP120	NM_001375405.1 linkuse as main transcript	c.2647C>T	p.Arg883Cys	missense_variant	19/20	ENST00000306467.10	NP_001362334.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CEP120	ENST00000306467.10 linkuse as main transcript	c.2647C>T	p.Arg883Cys	missense_variant	19/20	5	NM_001375405.1	ENSP00000303058.6		Q8N960-1

Frequencies

GnomAD3 genomes

AF:

0.000592

AC:

AN:

152044

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00191

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000459

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000156

AC:

AN:

250762

Hom.:

AF XY:

0.0000959

AC XY:

AN XY:

135514

show subpopulations

Gnomad AFR exome

AF:

0.00185

Gnomad AMR exome

AF:

0.0000291

Gnomad ASJ exome

AF:

0.0000993

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000441

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.0000739

AC:

108

AN:

1461400

Hom.:

Cov.:

AF XY:

0.0000536

AC XY:

AN XY:

726960

show subpopulations

Gnomad4 AFR exome

AF:

0.00224

Gnomad4 AMR exome

AF:

0.0000672

Gnomad4 ASJ exome

AF:

0.0000765

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000989

Gnomad4 OTH exome

AF:

0.000248

GnomAD4 genome

AF:

0.000591

AC:

AN:

152160

Hom.:

Cov.:

AF XY:

0.000632

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.00190

Gnomad4 AMR

AF:

0.000458

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000158

Hom.:

Bravo

AF:

0.000892

ESP6500AA

AF:

0.00204

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000181

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Apr 25, 2023

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Short-rib thoracic dysplasia 13 with or without polydactyly

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 13, 2022

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 883 of the CEP120 protein (p.Arg883Cys). This variant is present in population databases (rs140306974, gnomAD 0.2%). This variant has not been reported in the literature in individuals affected with CEP120-related conditions. ClinVar contains an entry for this variant (Variation ID: 542763). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt CEP120 protein function. 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. -

CEP120-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Mar 11, 2024

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 12, 2021

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.19

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.098

T;T;.

Eigen

Uncertain

0.25

Eigen_PC

Uncertain

0.40

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.94

.;D;D

M_CAP

Benign

0.025

MetaRNN

Benign

0.036

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.3

L;L;.

PrimateAI

Uncertain

0.68

PROVEAN

Pathogenic

-4.6

D;D;D

REVEL

Benign

0.17

Sift

Uncertain

0.025

D;D;D

Sift4G

Uncertain

0.046

D;D;D

Polyphen

0.33

B;B;.

Vest4

0.55

MVP

0.26

MPC

0.46

ClinPred

0.11

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.18

gMVP

0.25

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over