19-33302101-TCGCCGCCGC-TCGC

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP3BS2

The NM_004364.5(CEBPA):c.308_313delGCGGCG(p.Gly103_Gly104del) variant causes a disruptive inframe deletion change. The variant allele was found at a frequency of 0.0000136 in 1,322,276 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

CEBPA
NM_004364.5 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 3.82

Variant links:

Genes affected

CEBPA (HGNC:1833): (CCAAT enhancer binding protein alpha) This intronless gene encodes a transcription factor that contains a basic leucine zipper (bZIP) domain and recognizes the CCAAT motif in the promoters of target genes. The encoded protein functions in homodimers and also heterodimers with CCAAT/enhancer-binding proteins beta and gamma. Activity of this protein can modulate the expression of genes involved in cell cycle regulation as well as in body weight homeostasis. Mutation of this gene is associated with acute myeloid leukemia. The use of alternative in-frame non-AUG (GUG) and AUG start codons results in protein isoforms with different lengths. Differential translation initiation is mediated by an out-of-frame, upstream open reading frame which is located between the GUG and the first AUG start codons. [provided by RefSeq, Dec 2013]

CEBPA links:

ENSG00000267727 (HGNC:):

ENSG00000267727 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP3

Nonframeshift variant in repetitive region in NM_004364.5

BS2

High AC in GnomAdExome4 at 16 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CEBPA	NM_004364.5 link	c.308_313delGCGGCG	p.Gly103_Gly104del	disruptive_inframe_deletion	Exon 1 of 1	ENST00000498907.3	NP_004355.2	P49715-1
CEBPA	NM_001287424.2 link	c.413_418delGCGGCG	p.Gly138_Gly139del	disruptive_inframe_deletion	Exon 1 of 1		NP_001274353.1	P49715-4
CEBPA	NM_001287435.2 link	c.266_271delGCGGCG	p.Gly89_Gly90del	disruptive_inframe_deletion	Exon 1 of 1		NP_001274364.1	P49715-2
CEBPA	NM_001285829.2 link	c.-50_-45delGCGGCG		5_prime_UTR_variant	Exon 1 of 1		NP_001272758.1	P49715-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CEBPA	ENST00000498907.3 link	c.308_313delGCGGCG	p.Gly103_Gly104del	disruptive_inframe_deletion	Exon 1 of 1	6	NM_004364.5	ENSP00000427514.1		P49715-1
ENSG00000267727	ENST00000587312.1 link	n.162_167delCGCCGC		downstream_gene_variant		3

Frequencies

GnomAD3 genomes

AF:

0.0000140

AC:

AN:

142988

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000506

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000182

AC:

AN:

54968

Hom.:

AF XY:

0.00

AC XY:

AN XY:

32314

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000169

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:

0.0000136

AC:

AN:

1179140

Hom.:

AF XY:

0.0000140

AC XY:

AN XY:

572100

show subpopulations

Gnomad4 AFR exome

AF:

0.000207

Gnomad4 AMR exome

AF:

0.0000641

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000238

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000727

Gnomad4 OTH exome

AF:

0.0000429

GnomAD4 genome

AF:

0.0000140

AC:

AN:

143136

Hom.:

Cov.:

AF XY:

0.0000286

AC XY:

AN XY:

69834

show subpopulations

Gnomad4 AFR

AF:

0.0000505

Gnomad4 AMR

AF:

0.00

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

Bravo

AF:

0.0000491

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 01, 2020

Genetic Services Laboratory, University of Chicago

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

DNA sequence analysis of the CEBPA gene demonstrated a 6 base pair deletion in exon 1, c.308_313del. This in-frame deletion is predicted to result in the deletion of 2 amino acid residues, p.Gly103_Gly104del. This sequence change has been described in the gnomAD database in one individual with an overall population frequency of 0.0018% (dbSNP rs780345232), and does not appear to have been previously described in patients with CEBPA-related disorders. The functional significance of this sequence change is not known at present and its contribution to a disease phenotype cannot definitively be determined. -

Inborn genetic diseases

Uncertain:1

Feb 13, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.308_313delGCGGCG variant (also known as p.G103_G104del) is located in coding exon 1 of the CEBPA gene. This variant results from an in-frame GCGGCG deletion at nucleotide positions 308 to 313. This results in the in-frame deletion of two glycine residues at codons 103 to 104. This amino acid region is well conserved in available vertebrate species. In addition, this alteration is predicted to be neutral by in silico analysis (Choi Y et al. PLoS ONE. 2012; 7(10):e46688). Based on the available evidence, the clinical significance of this variant remains unclear. -

not provided

Uncertain:1

Jul 28, 2022

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In-frame deletion of 2 amino acids in a repetitive region with no known function; Not observed at significant frequency in large population cohorts (gnomAD); Has not been previously published as pathogenic or benign to our knowledge -

Acute myeloid leukemia

Uncertain:1

Aug 27, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant, c.308_313del, results in the deletion of 2 amino acid(s) of the CEBPA protein (p.Gly103_Gly104del), but otherwise preserves the integrity of the reading frame. This variant is present in population databases (no rsID available, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with CEBPA-related conditions. ClinVar contains an entry for this variant (Variation ID: 456679). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

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