rs201061067

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_004364.5(CEBPA):​c.827A>G​(p.Lys276Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000124 in 1,608,950 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: š‘“ 0.000059 ( 0 hom., cov: 32)
Exomes š‘“: 0.00013 ( 0 hom. )

Consequence

CEBPA
NM_004364.5 missense

Scores

2
10
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 7.78
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 Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAd4 at 9 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CEBPANM_004364.5 linkc.827A>G p.Lys276Arg missense_variant Exon 1 of 1 ENST00000498907.3 NP_004355.2 P49715-1
CEBPANM_001287424.2 linkc.932A>G p.Lys311Arg missense_variant Exon 1 of 1 NP_001274353.1 P49715-4
CEBPANM_001287435.2 linkc.785A>G p.Lys262Arg missense_variant Exon 1 of 1 NP_001274364.1 P49715-2
CEBPANM_001285829.2 linkc.470A>G p.Lys157Arg missense_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.827A>G p.Lys276Arg missense_variant Exon 1 of 1 6 NM_004364.5 ENSP00000427514.1 P49715-1
ENSG00000267727ENST00000587312.1 linkn.310T>C non_coding_transcript_exon_variant Exon 1 of 2 3

Frequencies

GnomAD3 genomes
AF:
0.0000593
AC:
9
AN:
151742
Hom.:
0
Cov.:
32
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:
0.000133
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000421
AC:
10
AN:
237702
Hom.:
0
AF XY:
0.0000536
AC XY:
7
AN XY:
130486
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000295
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:
0.0000848
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000131
AC:
191
AN:
1457208
Hom.:
0
Cov.:
31
AF XY:
0.000135
AC XY:
98
AN XY:
724994
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000225
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:
0.000159
Gnomad4 OTH exome
AF:
0.000200
GnomAD4 genome
AF:
0.0000593
AC:
9
AN:
151742
Hom.:
0
Cov.:
32
AF XY:
0.0000675
AC XY:
5
AN XY:
74096
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.000133
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000882
Hom.:
0
Bravo
AF:
0.0000756
ExAC
AF:
0.0000415
AC:
5

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Acute myeloid leukemia Uncertain:2
Sep 25, 2019
Baylor Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Jan 01, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces lysine, which is basic and polar, with arginine, which is basic and polar, at codon 276 of the CEBPA protein (p.Lys276Arg). This variant is present in population databases (rs201061067, gnomAD 0.01%). 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: 456705). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) 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. -

not provided Uncertain:1
Oct 21, 2024
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as a germline pathogenic or benign variant to our knowledge; This variant is associated with the following publications: (PMID: 29025912) -

Inborn genetic diseases Benign:1
Aug 20, 2024
Ambry Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as 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
Benign
0.30
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.42
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.62
D
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.60
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.86
D
M_CAP
Uncertain
0.25
D
MetaRNN
Uncertain
0.46
T
MetaSVM
Benign
-0.78
T
MutationAssessor
Uncertain
2.1
M
PrimateAI
Pathogenic
0.90
D
PROVEAN
Uncertain
-2.7
D
REVEL
Benign
0.17
Sift
Benign
0.072
T
Sift4G
Uncertain
0.014
D
Polyphen
1.0
D
Vest4
0.41
MVP
0.57
ClinPred
0.40
T
GERP RS
4.7
Varity_R
0.30
gMVP
0.85

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs201061067; hg19: chr19-33792494; COSMIC: COSV57196725; COSMIC: COSV57196725; API