rs200354654

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting

The NM_017721.5(CC2D1A):c.2372G>A(p.Arg791Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000245 in 1,613,624 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0013 ( 1 hom., cov: 30)

Exomes 𝑓: 0.00014 ( 1 hom. )

Consequence

CC2D1A
NM_017721.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 8.85

Variant links:

Genes affected

CC2D1A (HGNC:30237): (coiled-coil and C2 domain containing 1A) This gene encodes a transcriptional repressor that binds to a conserved 14-bp 5'-repressor element and regulates expression of the 5-hydroxytryptamine (serotonin) receptor 1A gene in neuronal cells. The DNA binding and transcriptional repressor activities of the protein are inhibited by calcium. A mutation in this gene results in a nonsyndromic form of cognitive disability (MRT3). [provided by RefSeq, Jul 2017]

CC2D1A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.09537685).

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00126 (192/152192) while in subpopulation AFR AF= 0.00434 (180/41520). AF 95% confidence interval is 0.00382. There are 1 homozygotes in gnomad4. There are 101 alleles in male gnomad4 subpopulation. Median coverage is 30. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CC2D1A	NM_017721.5 link	c.2372G>A	p.Arg791Gln	missense_variant	Exon 23 of 29	ENST00000318003.11	NP_060191.3	Q6P1N0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CC2D1A	ENST00000318003.11 link	c.2372G>A	p.Arg791Gln	missense_variant	Exon 23 of 29	1	NM_017721.5	ENSP00000313601.6		Q6P1N0-1

Frequencies

GnomAD3 genomes

AF:

0.00126

AC:

191

AN:

152074

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00432

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000656

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:

0.000480

GnomAD3 exomes

AF:

0.000313

AC:

AN:

249256

Hom.:

AF XY:

0.000296

AC XY:

AN XY:

135286

show subpopulations

Gnomad AFR exome

AF:

0.00388

Gnomad AMR exome

AF:

0.000406

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.000140

AC:

204

AN:

1461432

Hom.:

Cov.:

AF XY:

0.000146

AC XY:

106

AN XY:

727020

show subpopulations

Gnomad4 AFR exome

AF:

0.00442

Gnomad4 AMR exome

AF:

0.000425

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000812

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000899

Gnomad4 OTH exome

AF:

0.000298

GnomAD4 genome

AF:

0.00126

AC:

192

AN:

152192

Hom.:

Cov.:

AF XY:

0.00136

AC XY:

101

AN XY:

74406

show subpopulations

Gnomad4 AFR

AF:

0.00434

Gnomad4 AMR

AF:

0.000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000475

Alfa

AF:

0.000197

Hom.:

Bravo

AF:

0.00152

ESP6500AA

AF:

0.00318

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000347

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Dec 16, 2022

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Mar 21, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not specified

Uncertain:1

Jan 19, 2017

Genetic Services Laboratory, University of Chicago

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Uncertain:1

Jun 16, 2019

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.R791Q variant (also known as c.2372G>A), located in coding exon 23 of the CC2D1A gene, results from a G to A substitution at nucleotide position 2372. The arginine at codon 791 is replaced by glutamine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be inconclusive by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

CC2D1A-related disorder

Benign:1

Dec 27, 2023

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Uncertain

0.030

BayesDel_noAF

Pathogenic

0.27

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.66

D;.

Eigen

Pathogenic

0.85

Eigen_PC

Pathogenic

0.81

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.99

D;D

M_CAP

Uncertain

0.20

MetaRNN

Benign

0.095

T;T

MetaSVM

Uncertain

-0.098

MutationAssessor

Uncertain

2.3

M;M

PrimateAI

Uncertain

0.62

PROVEAN

Uncertain

-3.9

D;.

REVEL

Pathogenic

0.68

Sift

Pathogenic

0.0

D;.

Sift4G

Uncertain

0.0040

D;D

Polyphen

1.0

D;D

Vest4

0.90

MVP

0.83

MPC

0.87

ClinPred

0.11

GERP RS

5.2

Varity_R

0.78

gMVP

0.80

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over