chr19-13909859-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_017721.5(CC2D1A):​c.97A>T​(p.Met33Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000007 in 1,428,896 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

CC2D1A
NM_017721.5 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.31
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.094427526).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CC2D1ANM_017721.5 linkuse as main transcriptc.97A>T p.Met33Leu missense_variant 2/29 ENST00000318003.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CC2D1AENST00000318003.11 linkuse as main transcriptc.97A>T p.Met33Leu missense_variant 2/291 NM_017721.5 P3Q6P1N0-1
CC2D1AENST00000589606.5 linkuse as main transcriptc.97A>T p.Met33Leu missense_variant 2/291 A1Q6P1N0-2
CC2D1AENST00000585896.5 linkuse as main transcriptn.336A>T non_coding_transcript_exon_variant 2/102
CC2D1AENST00000680439.1 linkuse as main transcriptn.255A>T non_coding_transcript_exon_variant 2/7

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
7.00e-7
AC:
1
AN:
1428896
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
706784
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.15e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 03, 2021The c.97A>T (p.M33L) alteration is located in exon 2 (coding exon 2) of the CC2D1A gene. This alteration results from a A to T substitution at nucleotide position 97, causing the methionine (M) at amino acid position 33 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
17
DANN
Benign
0.86
DEOGEN2
Benign
0.043
T;.
Eigen
Benign
-0.35
Eigen_PC
Benign
-0.22
FATHMM_MKL
Benign
0.74
D
LIST_S2
Benign
0.69
T;T
M_CAP
Benign
0.0075
T
MetaRNN
Benign
0.094
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.2
L;L
MutationTaster
Benign
0.96
N;N
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-0.96
N;.
REVEL
Benign
0.029
Sift
Benign
0.64
T;.
Sift4G
Benign
1.0
T;T
Polyphen
0.84
P;B
Vest4
0.24
MutPred
0.17
Gain of glycosylation at S28 (P = 0.1975);Gain of glycosylation at S28 (P = 0.1975);
MVP
0.21
MPC
0.20
ClinPred
0.12
T
GERP RS
3.3
Varity_R
0.094
gMVP
0.26

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-14020672; API