rs1861044

Variant summary

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

The NM_001378615.1(CC2D2A):​c.1765-24A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.55 in 1,564,506 control chromosomes in the GnomAD database, including 238,801 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.53 ( 21471 hom., cov: 31)
Exomes 𝑓: 0.55 ( 217330 hom. )

Consequence

CC2D2A
NM_001378615.1 intron

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -1.58
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=-0.9).
BP6
Variant 4-15537875-A-G is Benign according to our data. Variant chr4-15537875-A-G is described in ClinVar as [Benign]. Clinvar id is 126231.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.565 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CC2D2ANM_001378615.1 linkuse as main transcriptc.1765-24A>G intron_variant ENST00000424120.6 NP_001365544.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CC2D2AENST00000424120.6 linkuse as main transcriptc.1765-24A>G intron_variant 5 NM_001378615.1 ENSP00000403465.1 Q9P2K1-4

Frequencies

GnomAD3 genomes
AF:
0.527
AC:
79942
AN:
151736
Hom.:
21447
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.468
Gnomad AMI
AF:
0.487
Gnomad AMR
AF:
0.576
Gnomad ASJ
AF:
0.614
Gnomad EAS
AF:
0.342
Gnomad SAS
AF:
0.498
Gnomad FIN
AF:
0.571
Gnomad MID
AF:
0.462
Gnomad NFE
AF:
0.558
Gnomad OTH
AF:
0.522
GnomAD3 exomes
AF:
0.548
AC:
99516
AN:
181456
Hom.:
27666
AF XY:
0.546
AC XY:
52520
AN XY:
96114
show subpopulations
Gnomad AFR exome
AF:
0.468
Gnomad AMR exome
AF:
0.630
Gnomad ASJ exome
AF:
0.612
Gnomad EAS exome
AF:
0.341
Gnomad SAS exome
AF:
0.509
Gnomad FIN exome
AF:
0.578
Gnomad NFE exome
AF:
0.564
Gnomad OTH exome
AF:
0.540
GnomAD4 exome
AF:
0.552
AC:
780432
AN:
1412652
Hom.:
217330
Cov.:
35
AF XY:
0.550
AC XY:
384119
AN XY:
697818
show subpopulations
Gnomad4 AFR exome
AF:
0.459
Gnomad4 AMR exome
AF:
0.616
Gnomad4 ASJ exome
AF:
0.613
Gnomad4 EAS exome
AF:
0.343
Gnomad4 SAS exome
AF:
0.506
Gnomad4 FIN exome
AF:
0.576
Gnomad4 NFE exome
AF:
0.562
Gnomad4 OTH exome
AF:
0.539
GnomAD4 genome
AF:
0.527
AC:
80003
AN:
151854
Hom.:
21471
Cov.:
31
AF XY:
0.527
AC XY:
39073
AN XY:
74184
show subpopulations
Gnomad4 AFR
AF:
0.467
Gnomad4 AMR
AF:
0.575
Gnomad4 ASJ
AF:
0.614
Gnomad4 EAS
AF:
0.343
Gnomad4 SAS
AF:
0.497
Gnomad4 FIN
AF:
0.571
Gnomad4 NFE
AF:
0.558
Gnomad4 OTH
AF:
0.526
Alfa
AF:
0.553
Hom.:
23498
Bravo
AF:
0.522
Asia WGS
AF:
0.447
AC:
1556
AN:
3478

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 submitterclinical testingGeneDxJun 26, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
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
-0.90
CADD
Benign
0.010
DANN
Benign
0.61

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.

Other links and lift over

dbSNP: rs1861044; hg19: chr4-15539498; COSMIC: COSV67502071; COSMIC: COSV67502071; API