19-33302241-G-C

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_004364.5(CEBPA):c.174C>G(p.His58Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000201 in 1,491,068 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H58P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000015 ( 0 hom. )

Consequence

CEBPA
NM_004364.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.56

Publications

3 publications found

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:

CEBPA-DT (HGNC:25710): (CEBPA divergent transcript)

CEBPA-DT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.38539416).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CEBPA	NM_004364.5 link	c.174C>G	p.His58Gln	missense_variant	Exon 1 of 1	ENST00000498907.3	NP_004355.2	P49715-1
CEBPA	NM_001287424.2 link	c.279C>G	p.His93Gln	missense_variant	Exon 1 of 1		NP_001274353.1	P49715-4
CEBPA	NM_001287435.2 link	c.132C>G	p.His44Gln	missense_variant	Exon 1 of 1		NP_001274364.1	P49715-2
CEBPA	NM_001285829.2 link	c.-184C>G		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.174C>G	p.His58Gln	missense_variant	Exon 1 of 1	6	NM_004364.5	ENSP00000427514.1		P49715-1
CEBPA-DT	ENST00000718467.1 link	n.46+442G>C		intron_variant	Intron 1 of 1

Frequencies

GnomAD3 genomes

AF:

0.00000660

AC:

AN:

151630

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000149

AC:

AN:

1339438

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

660618

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

27122

American (AMR)

AF:

0.00

AC:

AN:

29310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23288

East Asian (EAS)

AF:

0.00

AC:

AN:

29466

South Asian (SAS)

AF:

0.00

AC:

AN:

73422

European-Finnish (FIN)

AF:

0.00

AC:

AN:

47034

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5488

European-Non Finnish (NFE)

AF:

0.00000191

AC:

AN:

1049298

Other (OTH)

AF:

0.00

AC:

AN:

55010

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000660

AC:

AN:

151630

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74062

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41364

American (AMR)

AF:

0.00

AC:

AN:

15250

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5118

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10438

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67862

Other (OTH)

AF:

0.00

AC:

AN:

2082

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Acute myeloid leukemia

Uncertain:1

Mar 18, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces histidine, which is basic and polar, with glutamine, which is neutral and polar, at codon 58 of the CEBPA protein (p.His58Gln). This variant is not present in population databases (gnomAD no frequency). 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: 1366703). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CEBPA protein function. 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

AlphaMissense

Pathogenic

0.65

BayesDel_addAF

Benign

-0.095

BayesDel_noAF

Benign

-0.37

CADD

Uncertain

(source)

DANN

Benign

0.95

DEOGEN2

Uncertain

0.45

Eigen

Benign

0.025

Eigen_PC

Benign

0.12

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.74

M_CAP

Pathogenic

0.77

MetaRNN

Benign

0.39

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.69

PhyloP100

7.6

PrimateAI

Pathogenic

0.95

PROVEAN

Uncertain

-2.5

REVEL

Benign

0.14

Sift

Uncertain

0.0050

Sift4G

Benign

0.082

Polyphen

0.63

Vest4

0.26

MutPred

0.28

Gain of relative solvent accessibility (P = 0.09);

MVP

0.34

ClinPred

0.80

GERP RS

4.0

PromoterAI

0.099

Neutral

(source)

Varity_R

0.61

gMVP

0.29

Mutation Taster

=55/45

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over