5-123412411-G-A

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_001375405.1(CEP120):c.451C>T(p.Arg151*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000106 in 1,599,736 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

CEP120
NM_001375405.1 stop_gained

Scores

Clinical Significance

Likely pathogenic criteria provided, single submitter P:3

Conservation

PhyloP100: 2.81

Publications

3 publications found

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 Gene-Disease associations (from GenCC):

ciliopathy
Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
Joubert syndrome 31
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
short-rib thoracic dysplasia 13 with or without polydactyly
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
Jeune syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Joubert syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Joubert syndrome with ocular defect
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

CEP120 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 12 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 5-123412411-G-A is Pathogenic according to our data. Variant chr5-123412411-G-A is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 446142.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001375405.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CEP120	NM_001375405.1	MANE Select	c.451C>T	p.Arg151*	stop_gained	Exon 4 of 20	NP_001362334.1
CEP120	NM_001375408.1		c.-298C>T		5_prime_UTR_premature_start_codon_gain	Exon 5 of 23	NP_001362337.1
CEP120	NM_001375409.1		c.-240C>T		5_prime_UTR_premature_start_codon_gain	Exon 4 of 21	NP_001362338.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CEP120	ENST00000306467.10	TSL:5 MANE Select	c.451C>T	p.Arg151*	stop_gained	Exon 4 of 20	ENSP00000303058.6
CEP120	ENST00000508138.5	TSL:1	n.451C>T		non_coding_transcript_exon	Exon 5 of 23	ENSP00000422234.1
CEP120	ENST00000513565.6	TSL:1	n.451C>T		non_coding_transcript_exon	Exon 4 of 21	ENSP00000422089.2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000424

AC:

AN:

235656

AF XY:

0.00000780

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000330

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000111

AC:

AN:

1447554

Hom.:

Cov.:

AF XY:

0.0000139

AC XY:

AN XY:

719894

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32460

American (AMR)

AF:

0.0000245

AC:

AN:

40862

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25518

East Asian (EAS)

AF:

0.00

AC:

AN:

39330

South Asian (SAS)

AF:

0.00

AC:

AN:

83094

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53252

Middle Eastern (MID)

AF:

0.000176

AC:

AN:

5682

European-Non Finnish (NFE)

AF:

0.0000126

AC:

AN:

1107616

Other (OTH)

AF:

0.00

AC:

AN:

59740

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.472

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74340

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41432

American (AMR)

AF:

0.00

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5204

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68038

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:3

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Short-rib thoracic dysplasia 13 with or without polydactyly

Pathogenic:2

Sep 10, 2025

Genomic Medicine Center of Excellence, King Faisal Specialist Hospital and Research Centre

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Nov 06, 2017

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

Chuvash polycythemia

Pathogenic:1

Dec 17, 2024

Genomic Medicine Center of Excellence, King Faisal Specialist Hospital and Research Centre

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.55

BayesDel_noAF

Pathogenic

0.59

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

Eigen

Pathogenic

0.83

Eigen_PC

Pathogenic

0.71

FATHMM_MKL

Uncertain

0.92

PhyloP100

2.8

Vest4

0.47

GERP RS

4.7

Mutation Taster

=0/200

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.40

Details are displayed if max score is > 0.2

DS_DL_spliceai

0.40

Position offset: -12

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over