19-33302110-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004364.5(CEBPA):​c.305G>A​(p.Gly102Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000298 in 1,340,814 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G102S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000025 ( 0 hom. )

Consequence

CEBPA
NM_004364.5 missense

Scores

2
1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.172

Publications

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.1654551).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CEBPANM_004364.5 linkc.305G>A p.Gly102Asp missense_variant Exon 1 of 1 ENST00000498907.3 NP_004355.2
CEBPANM_001287424.2 linkc.410G>A p.Gly137Asp missense_variant Exon 1 of 1 NP_001274353.1
CEBPANM_001287435.2 linkc.263G>A p.Gly88Asp missense_variant Exon 1 of 1 NP_001274364.1
CEBPANM_001285829.2 linkc.-53G>A 5_prime_UTR_variant Exon 1 of 1 NP_001272758.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CEBPAENST00000498907.3 linkc.305G>A p.Gly102Asp missense_variant Exon 1 of 1 6 NM_004364.5 ENSP00000427514.1
CEBPA-DTENST00000718467.1 linkn.46+311C>T intron_variant Intron 1 of 1
ENSG00000267727ENST00000587312.1 linkn.*170C>T downstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.00000665
AC:
1
AN:
150466
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:
0.000198
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
GnomAD2 exomes
AF:
0.0000155
AC:
1
AN:
64450
AF XY:
0.0000265
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000438
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000252
AC:
3
AN:
1190348
Hom.:
0
Cov.:
33
AF XY:
0.00000346
AC XY:
2
AN XY:
578210
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
24344
American (AMR)
AF:
0.00
AC:
0
AN:
16338
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19336
East Asian (EAS)
AF:
0.00
AC:
0
AN:
26412
South Asian (SAS)
AF:
0.00
AC:
0
AN:
43672
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40178
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3526
European-Non Finnish (NFE)
AF:
0.00000309
AC:
3
AN:
969330
Other (OTH)
AF:
0.00
AC:
0
AN:
47212
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.00000665
AC:
1
AN:
150466
Hom.:
0
Cov.:
32
AF XY:
0.0000136
AC XY:
1
AN XY:
73464
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41200
American (AMR)
AF:
0.00
AC:
0
AN:
15140
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3460
East Asian (EAS)
AF:
0.000198
AC:
1
AN:
5042
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4808
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
9976
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
312
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67552
Other (OTH)
AF:
0.00
AC:
0
AN:
2066
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Acute myeloid leukemia Uncertain:1
Jan 13, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 102 of the CEBPA protein (p.Gly102Asp). This variant is present in population databases (no rsID available, gnomAD 0.004%). 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: 456678). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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
Benign
0.23
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
16
DANN
Benign
0.94
DEOGEN2
Benign
0.31
T
Eigen
Benign
-0.80
Eigen_PC
Benign
-0.69
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.44
T
M_CAP
Pathogenic
0.51
D
MetaRNN
Benign
0.17
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
0.0
N
PhyloP100
0.17
PrimateAI
Pathogenic
0.95
D
PROVEAN
Benign
-0.36
N
REVEL
Benign
0.074
Sift
Benign
0.16
T
Sift4G
Benign
0.25
T
Polyphen
0.028
B
Vest4
0.25
MutPred
0.31
Gain of relative solvent accessibility (P = 0.0082);
MVP
0.16
ClinPred
0.027
T
GERP RS
0.90
PromoterAI
0.021
Neutral
Varity_R
0.080
gMVP
0.14
Mutation Taster
=89/11
polymorphism

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

Other links and lift over

dbSNP: rs1358539228; hg19: chr19-33793016; API