rs77389229

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_017721.5(CC2D1A):​c.2342G>A​(p.Gly781Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000243 in 1,613,626 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G781V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 30)
Exomes 𝑓: 0.00025 ( 0 hom. )

Consequence

CC2D1A
NM_017721.5 missense

Scores

7
9
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.85

Publications

12 publications found
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 Gene-Disease associations (from GenCC):
  • complex neurodevelopmental disorder
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • intellectual disability, autosomal recessive 3
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
  • autosomal recessive non-syndromic intellectual disability
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.774

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CC2D1ANM_017721.5 linkc.2342G>A p.Gly781Glu 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
CC2D1AENST00000318003.11 linkc.2342G>A p.Gly781Glu missense_variant Exon 23 of 29 1 NM_017721.5 ENSP00000313601.6 Q6P1N0-1

Frequencies

GnomAD3 genomes
AF:
0.000177
AC:
27
AN:
152132
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000786
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:
0.000162
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000121
AC:
30
AN:
248696
AF XY:
0.000148
show subpopulations
Gnomad AFR exome
AF:
0.0000652
Gnomad AMR exome
AF:
0.000203
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000111
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000168
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000250
AC:
365
AN:
1461376
Hom.:
0
Cov.:
32
AF XY:
0.000227
AC XY:
165
AN XY:
727000
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.000179
AC:
8
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52938
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.000311
AC:
346
AN:
1111990
Other (OTH)
AF:
0.000149
AC:
9
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.474
Heterozygous variant carriers
0
18
37
55
74
92
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.000177
AC:
27
AN:
152250
Hom.:
0
Cov.:
30
AF XY:
0.000161
AC XY:
12
AN XY:
74454
show subpopulations
African (AFR)
AF:
0.0000963
AC:
4
AN:
41550
American (AMR)
AF:
0.000785
AC:
12
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000162
AC:
11
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
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:
0.000814
Hom.:
4
Bravo
AF:
0.000295
ExAC
AF:
0.000108
AC:
13
EpiCase
AF:
0.000164
EpiControl
AF:
0.000178

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
May 31, 2018
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.G781E variant (also known as c.2342G>A), located in coding exon 23 of the CC2D1A gene, results from a G to A substitution at nucleotide position 2342. The glycine at codon 781 is replaced by glutamic acid, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.74
BayesDel_addAF
Benign
-0.069
T
BayesDel_noAF
Uncertain
-0.070
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.55
D;.
Eigen
Pathogenic
0.86
Eigen_PC
Pathogenic
0.82
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D;D
M_CAP
Uncertain
0.13
D
MetaRNN
Pathogenic
0.77
D;D
MetaSVM
Benign
-0.62
T
MutationAssessor
Uncertain
2.3
M;M
PhyloP100
8.9
PrimateAI
Uncertain
0.67
T
PROVEAN
Pathogenic
-7.9
D;.
REVEL
Uncertain
0.55
Sift
Pathogenic
0.0
D;.
Sift4G
Uncertain
0.0020
D;D
Polyphen
1.0
D;D
Vest4
0.76
MVP
0.57
MPC
0.93
ClinPred
0.47
T
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.90
gMVP
0.89
Mutation Taster
=36/64
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs77389229; hg19: chr19-14038731; API