Genetic Variant NM_017721.5:c.27_35dupACCCCCGGG (chr19-13906456-A-AGGACCCCCG) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PM4

The NM_017721.5(CC2D1A):c.27_35dupACCCCCGGG(p.Gly12_Arg13insProProGly) variant causes a disruptive inframe insertion change. The variant allele was found at a frequency of 0.0000132 in 1,365,402 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

CC2D1A
NM_017721.5 disruptive_inframe_insertion

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.26

Publications

0 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 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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM4

Nonframeshift variant in NON repetitive region in NM_017721.5.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CC2D1A	NM_017721.5 link	c.27_35dupACCCCCGGG	p.Gly12_Arg13insProProGly	disruptive_inframe_insertion	Exon 1 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.27_35dupACCCCCGGG	p.Gly12_Arg13insProProGly	disruptive_inframe_insertion	Exon 1 of 29	1	NM_017721.5	ENSP00000313601.6		Q6P1N0-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.0000132

AC:

AN:

1365402

Hom.:

Cov.:

AF XY:

0.0000104

AC XY:

AN XY:

673358

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

29080

American (AMR)

AF:

0.00

AC:

AN:

32784

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24324

East Asian (EAS)

AF:

0.00

AC:

AN:

31960

South Asian (SAS)

AF:

0.00

AC:

AN:

76768

European-Finnish (FIN)

AF:

0.00

AC:

AN:

41622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5254

European-Non Finnish (NFE)

AF:

0.0000169

AC:

AN:

1066906

Other (OTH)

AF:

0.00

AC:

AN:

56704

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

4.3

Mutation Taster

=79/21

polymorphism

(source)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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NM_017721.5:c.27_35dupACCCCCGGG

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over