19-13906446-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.5A>T(p.His2Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000402 in 1,518,698 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

CC2D1A
NM_017721.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.64

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:

BRME1 (HGNC:28153): (break repair meiotic recombinase recruitment factor 1) Predicted to be involved in meiosis I and spermatogenesis. Predicted to be located in chromosome. [provided by Alliance of Genome Resources, Apr 2022]

BRME1 links:

Genome browser will be placed here

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=0.16434905).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CC2D1A	NM_017721.5 linkuse as main transcript	c.5A>T	p.His2Leu	missense_variant	1/29	ENST00000318003.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CC2D1A	ENST00000318003.11 linkuse as main transcript	c.5A>T	p.His2Leu	missense_variant	1/29	1	NM_017721.5	P3	Q6P1N0-1

Frequencies

GnomAD3 genomes

AF:

0.000171

AC:

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000458

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000525

AC:

AN:

114240

Hom.:

AF XY:

0.0000631

AC XY:

AN XY:

63348

show subpopulations

Gnomad AFR exome

AF:

0.000491

Gnomad AMR exome

AF:

0.000193

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000256

AC:

AN:

1366438

Hom.:

Cov.:

AF XY:

0.0000237

AC XY:

AN XY:

673926

show subpopulations

Gnomad4 AFR exome

AF:

0.000893

Gnomad4 AMR exome

AF:

0.000153

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:

0.00

Gnomad4 OTH exome

AF:

0.0000705

GnomAD4 genome

AF:

0.000171

AC:

AN:

152260

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74452

show subpopulations

Gnomad4 AFR

AF:

0.000457

Gnomad4 AMR

AF:

0.000458

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000869

Hom.:

Bravo

AF:

0.000185

ESP6500AA

AF:

0.000591

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000115

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 15, 2021

The c.5A>T (p.H2L) alteration is located in exon 1 (coding exon 1) of the CC2D1A gene. This alteration results from a A to T substitution at nucleotide position 5, causing the histidine (H) at amino acid position 2 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Nov 14, 2022

In silico analysis supports that this missense variant does not alter protein structure/function; In silico analysis is inconclusive as to whether the variant alters gene splicing. In the absence of RNA/functional studies, the actual effect of this sequence change is unknown.; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.43

Cadd

Uncertain

Dann

Benign

0.90

DEOGEN2

Benign

0.11

T;.

Eigen

Benign

-0.15

Eigen_PC

Benign

-0.21

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.67

T;T

M_CAP

Benign

0.056

MetaRNN

Benign

0.16

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.0

M;M

MutationTaster

Benign

0.69

N;N

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

-2.0

N;.

REVEL

Benign

0.19

Sift

Benign

0.089

T;.

Sift4G

Benign

0.50

T;T

Polyphen

0.99

D;D

Vest4

0.45

MVP

0.45

MPC

0.90

ClinPred

0.13

GERP RS

3.0

Varity_R

0.26

gMVP

0.49

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