19-13906455-A-AAGGACCCCC

Position:

chr19-13906455-A-AAGGACCCCC

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM4BS1_SupportingBS2

The NM_017721.5(CC2D1A):c.15_23dupAGGACCCCC(p.Pro8_Gly9insGlyProPro) variant causes a disruptive inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00162 in 1,517,520 control chromosomes in the GnomAD database, including 3 homozygotes. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P8P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0017 ( 3 hom. )

Consequence

CC2D1A
NM_017721.5 disruptive_inframe_insertion

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 0.287

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 Likely_benign. Variant got -3 ACMG points.

PM4

Nonframeshift variant in NON repetitive region in NM_017721.5.

BS1

Variant frequency is greater than expected in population nfe. gnomad4_exome allele frequency = 0.00169 (2303/1365390) while in subpopulation NFE AF= 0.00205 (2190/1066870). AF 95% confidence interval is 0.00198. There are 3 homozygotes in gnomad4_exome. There are 1109 alleles in male gnomad4_exome 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

BS2

High Homozygotes in GnomAdExome4 at 3 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CC2D1A	NM_017721.5 link	c.15_23dupAGGACCCCC	p.Pro8_Gly9insGlyProPro	disruptive_inframe_insertion	1/29	ENST00000318003.11	NP_060191.3	Q6P1N0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CC2D1A	ENST00000318003.11 link	c.15_23dupAGGACCCCC	p.Pro8_Gly9insGlyProPro	disruptive_inframe_insertion	1/29	1	NM_017721.5	ENSP00000313601.6		Q6P1N0-1

Frequencies

GnomAD3 genomes

AF:

0.00105

AC:

160

AN:

152014

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000266

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00104

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00188

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000495

AC:

AN:

113052

Hom.:

AF XY:

0.000494

AC XY:

AN XY:

62816

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000339

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000108

Gnomad NFE exome

AF:

0.00109

Gnomad OTH exome

AF:

0.000627

GnomAD4 exome

AF:

0.00169

AC:

2303

AN:

1365390

Hom.:

Cov.:

AF XY:

0.00165

AC XY:

1109

AN XY:

673390

show subpopulations

Gnomad4 AFR exome

AF:

0.000241

Gnomad4 AMR exome

AF:

0.000549

Gnomad4 ASJ exome

AF:

0.0000411

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000432

Gnomad4 NFE exome

AF:

0.00205

Gnomad4 OTH exome

AF:

0.00122

GnomAD4 genome

AF:

0.00105

AC:

160

AN:

152130

Hom.:

Cov.:

AF XY:

0.000995

AC XY:

AN XY:

74374

show subpopulations

Gnomad4 AFR

AF:

0.000265

Gnomad4 AMR

AF:

0.000588

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00104

Gnomad4 NFE

AF:

0.00188

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000237

Hom.:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Oct 31, 2016

- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

- -

Intellectual disability, autosomal recessive 3

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Baylor Genetics

Nov 29, 2018

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

May 20, 2022

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

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