9-78243456-T-G

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBA1

The NM_001330691.3(CEP78):​c.604-6T>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00324 in 1,608,776 control chromosomes in the GnomAD database, including 132 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.017 ( 64 hom., cov: 32)
Exomes 𝑓: 0.0018 ( 68 hom. )

Consequence

CEP78
NM_001330691.3 splice_region, intron

Scores

2
Splicing: ADA: 0.5007
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.50
Variant links:
Genes affected
CEP78 (HGNC:25740): (centrosomal protein 78) This gene encodes a centrosomal protein that is both required for the regulation of centrosome-related events during the cell cycle, and required for ciliogenesis. The encoded protein has an N-terminal leucine-rich repeat (LRR) domain with six consecutive LRR repeats, and a C-terminal coiled-coil domain. It interacts with the N-terminal catalytic domain of polo-like kinase 4 (PLK4) and colocalizes with PLK4 to the distal end of the centriole. Naturally occurring mutations in this gene cause defects in primary cilia that result in retinal degeneration and sensorineural hearing loss which are associated with cone-rod degeneration disease as well as Usher syndrome. Low expression of this gene is associated with poor prognosis of colorectal cancer patients. [provided by RefSeq, Mar 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.37).
BP6
Variant 9-78243456-T-G is Benign according to our data. Variant chr9-78243456-T-G is described in ClinVar as [Benign]. Clinvar id is 517537.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0572 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CEP78NM_001330691.3 linkuse as main transcriptc.604-6T>G splice_region_variant, intron_variant ENST00000643273.2 NP_001317620.1 Q5JTW2-3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CEP78ENST00000643273.2 linkuse as main transcriptc.604-6T>G splice_region_variant, intron_variant NM_001330691.3 ENSP00000496423.2 Q5JTW2-3

Frequencies

GnomAD3 genomes
AF:
0.0172
AC:
2621
AN:
152188
Hom.:
64
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0592
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00890
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.0110
GnomAD3 exomes
AF:
0.00478
AC:
1167
AN:
244158
Hom.:
33
AF XY:
0.00358
AC XY:
474
AN XY:
132376
show subpopulations
Gnomad AFR exome
AF:
0.0658
Gnomad AMR exome
AF:
0.00315
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000238
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000270
Gnomad OTH exome
AF:
0.00220
GnomAD4 exome
AF:
0.00178
AC:
2586
AN:
1456470
Hom.:
68
Cov.:
29
AF XY:
0.00157
AC XY:
1136
AN XY:
724526
show subpopulations
Gnomad4 AFR exome
AF:
0.0598
Gnomad4 AMR exome
AF:
0.00417
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000258
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000106
Gnomad4 OTH exome
AF:
0.00421
GnomAD4 genome
AF:
0.0173
AC:
2628
AN:
152306
Hom.:
64
Cov.:
32
AF XY:
0.0165
AC XY:
1228
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.0592
Gnomad4 AMR
AF:
0.00882
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.0109
Alfa
AF:
0.00915
Hom.:
17
Bravo
AF:
0.0200
Asia WGS
AF:
0.00520
AC:
18
AN:
3478
EpiCase
AF:
0.000383
EpiControl
AF:
0.000297

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitterclinical testingGeneDxMay 05, 2021- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 26, 2024- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineAug 23, 2017c.604-6T>G in intron 4 of CEP78: This variant is not expected to have clinical s ignificance because it has been identified in 6.45% (629/9758) of African chromo somes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs17064247). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.37
CADD
Benign
13
DANN
Benign
0.91

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.50
dbscSNV1_RF
Benign
0.70
SpliceAI score (max)
0.030
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.

Other links and lift over

dbSNP: rs17064247; hg19: chr9-80858372; API