rs4280724

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001378615.1(CC2D2A):​c.3595-22C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.283 in 1,514,516 control chromosomes in the GnomAD database, including 62,265 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.27 ( 5625 hom., cov: 32)
Exomes 𝑓: 0.29 ( 56640 hom. )

Consequence

CC2D2A
NM_001378615.1 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.509
Variant links:
Genes affected
CC2D2A (HGNC:29253): (coiled-coil and C2 domain containing 2A) This gene encodes a coiled-coil and calcium binding domain protein that appears to play a critical role in cilia formation. Mutations in this gene cause Meckel syndrome type 6, as well as Joubert syndrome type 9. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2009]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.55).
BP6
Variant 4-15574128-C-T is Benign according to our data. Variant chr4-15574128-C-T is described in ClinVar as [Benign]. Clinvar id is 126241.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.444 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CC2D2ANM_001378615.1 linkuse as main transcriptc.3595-22C>T intron_variant ENST00000424120.6 NP_001365544.1
CC2D2ANM_001080522.2 linkuse as main transcriptc.3595-22C>T intron_variant NP_001073991.2 Q9P2K1-4
CC2D2ANM_001378617.1 linkuse as main transcriptc.3448-22C>T intron_variant NP_001365546.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CC2D2AENST00000424120.6 linkuse as main transcriptc.3595-22C>T intron_variant 5 NM_001378615.1 ENSP00000403465.1 Q9P2K1-4

Frequencies

GnomAD3 genomes
AF:
0.267
AC:
40567
AN:
151996
Hom.:
5609
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.224
Gnomad AMI
AF:
0.133
Gnomad AMR
AF:
0.224
Gnomad ASJ
AF:
0.265
Gnomad EAS
AF:
0.459
Gnomad SAS
AF:
0.293
Gnomad FIN
AF:
0.321
Gnomad MID
AF:
0.287
Gnomad NFE
AF:
0.279
Gnomad OTH
AF:
0.283
GnomAD3 exomes
AF:
0.284
AC:
39296
AN:
138486
Hom.:
5959
AF XY:
0.288
AC XY:
21084
AN XY:
73260
show subpopulations
Gnomad AFR exome
AF:
0.219
Gnomad AMR exome
AF:
0.202
Gnomad ASJ exome
AF:
0.285
Gnomad EAS exome
AF:
0.476
Gnomad SAS exome
AF:
0.277
Gnomad FIN exome
AF:
0.317
Gnomad NFE exome
AF:
0.283
Gnomad OTH exome
AF:
0.267
GnomAD4 exome
AF:
0.285
AC:
388598
AN:
1362402
Hom.:
56640
Cov.:
26
AF XY:
0.285
AC XY:
190631
AN XY:
669424
show subpopulations
Gnomad4 AFR exome
AF:
0.226
Gnomad4 AMR exome
AF:
0.205
Gnomad4 ASJ exome
AF:
0.279
Gnomad4 EAS exome
AF:
0.434
Gnomad4 SAS exome
AF:
0.285
Gnomad4 FIN exome
AF:
0.318
Gnomad4 NFE exome
AF:
0.283
Gnomad4 OTH exome
AF:
0.292
GnomAD4 genome
AF:
0.267
AC:
40602
AN:
152114
Hom.:
5625
Cov.:
32
AF XY:
0.271
AC XY:
20120
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.224
Gnomad4 AMR
AF:
0.224
Gnomad4 ASJ
AF:
0.265
Gnomad4 EAS
AF:
0.459
Gnomad4 SAS
AF:
0.294
Gnomad4 FIN
AF:
0.321
Gnomad4 NFE
AF:
0.279
Gnomad4 OTH
AF:
0.289
Alfa
AF:
0.275
Hom.:
1081
Bravo
AF:
0.257
Asia WGS
AF:
0.344
AC:
1197
AN:
3476

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Likely benign, no assertion criteria providedclinical testingGenetic Services Laboratory, University of Chicago-Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 14, 2018This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Meckel syndrome, type 6 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -
Joubert syndrome 9 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.55
CADD
Benign
13
DANN
Benign
0.83

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs4280724; hg19: chr4-15575751; COSMIC: COSV67503626; API