rs868242502

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_004364.5(CEBPA):​c.261G>T​(p.Gln87His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000279 in 1,431,408 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000016 ( 0 hom. )

Consequence

CEBPA
NM_004364.5 missense

Scores

3
6
10

Clinical Significance

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

Conservation

PhyloP100: 3.17
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CEBPANM_004364.5 linkc.261G>T p.Gln87His missense_variant Exon 1 of 1 ENST00000498907.3 NP_004355.2 P49715-1
CEBPANM_001287424.2 linkc.366G>T p.Gln122His missense_variant Exon 1 of 1 NP_001274353.1 P49715-4
CEBPANM_001287435.2 linkc.219G>T p.Gln73His missense_variant Exon 1 of 1 NP_001274364.1 P49715-2
CEBPANM_001285829.2 linkc.-97G>T 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
CEBPAENST00000498907.3 linkc.261G>T p.Gln87His missense_variant Exon 1 of 1 6 NM_004364.5 ENSP00000427514.1 P49715-1
ENSG00000267727ENST00000587312.1 linkn.*214C>A downstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151390
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000484
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
GnomAD4 exome
AF:
0.00000156
AC:
2
AN:
1280018
Hom.:
0
Cov.:
33
AF XY:
0.00000159
AC XY:
1
AN XY:
629638
show subpopulations
Gnomad4 AFR exome
AF:
0.0000756
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151390
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
73932
show subpopulations
Gnomad4 AFR
AF:
0.0000484
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:
0.0000113

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Acute myeloid leukemia Uncertain:1
Jan 25, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces glutamine, which is neutral and polar, with histidine, which is basic and polar, at codon 87 of the CEBPA protein (p.Gln87His). 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: 570045). 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 with a negative predictive value of 80%. 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. -

Inborn genetic diseases Benign:1
Jan 13, 2025
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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
AlphaMissense
Uncertain
0.36
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.28
T
Eigen
Uncertain
0.35
Eigen_PC
Uncertain
0.33
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.74
T
M_CAP
Pathogenic
0.94
D
MetaRNN
Uncertain
0.48
T
MetaSVM
Benign
-0.67
T
MutationAssessor
Benign
1.4
L
PrimateAI
Pathogenic
0.95
D
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.11
Sift
Uncertain
0.010
D
Sift4G
Benign
0.13
T
Polyphen
0.99
D
Vest4
0.25
MutPred
0.24
Loss of helix (P = 0.1299);
MVP
0.54
ClinPred
0.86
D
GERP RS
4.1
Varity_R
0.28
gMVP
0.26

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs868242502; hg19: chr19-33793060; API