rs140306974

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The ENST00000306467.10(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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R883H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00059 ( 1 hom., cov: 32)
Exomes 𝑓: 0.000074 ( 0 hom. )

Consequence

CEP120
ENST00000306467.10 missense

Scores

2
7
9

Clinical Significance

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

Conservation

PhyloP100: 7.16

Publications

1 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

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 VariationId is 542763.
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 the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000306467.10. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CEP120
NM_001375405.1
MANE Select
c.2647C>Tp.Arg883Cys
missense
Exon 19 of 20NP_001362334.1
CEP120
NM_153223.4
c.2647C>Tp.Arg883Cys
missense
Exon 20 of 21NP_694955.2
CEP120
NM_001166226.2
c.2569C>Tp.Arg857Cys
missense
Exon 19 of 20NP_001159698.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CEP120
ENST00000306467.10
TSL:5 MANE Select
c.2647C>Tp.Arg883Cys
missense
Exon 19 of 20ENSP00000303058.6
CEP120
ENST00000508138.5
TSL:1
n.*2219C>T
non_coding_transcript_exon
Exon 22 of 23ENSP00000422234.1
CEP120
ENST00000513565.6
TSL:1
n.*2051C>T
non_coding_transcript_exon
Exon 20 of 21ENSP00000422089.2

Frequencies

GnomAD3 genomes
AF:
0.000592
AC:
90
AN:
152044
Hom.:
1
Cov.:
32
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
GnomAD2 exomes
AF:
0.000156
AC:
39
AN:
250762
AF XY:
0.0000959
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 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.:
0
Cov.:
30
AF XY:
0.0000536
AC XY:
39
AN XY:
726960
show subpopulations
African (AFR)
AF:
0.00224
AC:
75
AN:
33466
American (AMR)
AF:
0.0000672
AC:
3
AN:
44666
Ashkenazi Jewish (ASJ)
AF:
0.0000765
AC:
2
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39610
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86230
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53400
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5764
European-Non Finnish (NFE)
AF:
0.00000989
AC:
11
AN:
1111762
Other (OTH)
AF:
0.000248
AC:
15
AN:
60372
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.436
Heterozygous variant carriers
0
6
12
18
24
30
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000591
AC:
90
AN:
152160
Hom.:
1
Cov.:
32
AF XY:
0.000632
AC XY:
47
AN XY:
74370
show subpopulations
African (AFR)
AF:
0.00190
AC:
79
AN:
41528
American (AMR)
AF:
0.000458
AC:
7
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4816
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10590
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
67994
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
4
8
12
16
20
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000289
Hom.:
0
Bravo
AF:
0.000892
ESP6500AA
AF:
0.00204
AC:
9
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000181
AC:
22
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
CEP120-related disorder (1)
-
-
1
Inborn genetic diseases (1)
-
1
-
not provided (1)
-
1
-
Short-rib thoracic dysplasia 13 with or without polydactyly (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.19
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.098
T
Eigen
Uncertain
0.25
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.025
T
MetaRNN
Benign
0.036
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.3
L
PhyloP100
7.2
PrimateAI
Uncertain
0.68
T
PROVEAN
Pathogenic
-4.6
D
REVEL
Benign
0.17
Sift
Uncertain
0.025
D
Sift4G
Uncertain
0.046
D
Polyphen
0.33
B
Vest4
0.55
MVP
0.26
MPC
0.46
ClinPred
0.11
T
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.18
gMVP
0.25
Mutation Taster
=75/25
polymorphism

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

Other links and lift over

dbSNP: rs140306974; hg19: chr5-122685717; COSMIC: COSV60266046; COSMIC: COSV60266046; API