NM_001290047.2:c.1737dupC

Variant names:

• chr22-17540647-G-GC
• NM_001290047.2:c.1737dupC

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_001290047.2(CECR2):​c.1737dupC​(p.Thr580HisfsTer98) variant causes a frameshift change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 33)
• Consequence: CECR2 NM_001290047.2 frameshift
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 4.07
• Publications: 0 publications found

Genes affected

CECR2 (HGNC:1840): (CECR2 histone acetyl-lysine reader) This gene encodes a bromodomain-containing protein that is involved in chromatin remodeling, and may additionally play a role in DNA damage response. The encoded protein functions as part of an ATP-dependent complex that is involved in neurulation. This gene is a candidate gene for Cat Eye Syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2014]

ENSG00000286195 (HGNC:):

ACMG classification

Our verdict: Pathogenic. The variant received 12 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 22-17540647-G-GC is Pathogenic according to our data. Variant chr22-17540647-G-GC is described in ClinVar as [Likely_pathogenic]. Clinvar id is 4073549.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CECR2	NM_001290047.2	c.1737dupC	p.Thr580HisfsTer98	frameshift_variant	Exon 14 of 19	ENST00000262608.13	NP_001276976.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CECR2	ENST00000262608.13	c.1737dupC	p.Thr580HisfsTer98	frameshift_variant	Exon 14 of 19	1	NM_001290047.2	ENSP00000262608.11

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

CECR2-related neurodevelopmental disorder Pathogenic:1

Jul 28, 2025

Center for Statistical Genetics, Columbia University

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Heterozygous variant of unknown inheritance. Patient is adopted, so parents are unavailable for testing. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		4.1

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

hg19: chr22-18020336; COSMIC: COSV52839982;