19-33302101-T-TCGC

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP3BP6BS2

The NM_004364.5(CEBPA):​c.311_313dupGCG​(p.Gly104dup) variant causes a conservative inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000976 in 1,322,134 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. D105D) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000077 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

CEBPA
NM_004364.5 conservative_inframe_insertion

Scores

Not classified

Clinical Significance

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

Conservation

PhyloP100: 2.85

Publications

1 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: Likely_benign. The variant received -6 ACMG points.

BP3
Nonframeshift variant in repetitive region in NM_004364.5
BP6
Variant 19-33302101-T-TCGC is Benign according to our data. Variant chr19-33302101-T-TCGC is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 408748.
BS2
High AC in GnomAd4 at 11 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CEBPANM_004364.5 linkc.311_313dupGCG p.Gly104dup conservative_inframe_insertion Exon 1 of 1 ENST00000498907.3 NP_004355.2
CEBPANM_001287424.2 linkc.416_418dupGCG p.Gly139dup conservative_inframe_insertion Exon 1 of 1 NP_001274353.1
CEBPANM_001287435.2 linkc.269_271dupGCG p.Gly90dup conservative_inframe_insertion Exon 1 of 1 NP_001274364.1
CEBPANM_001285829.2 linkc.-47_-45dupGCG 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.311_313dupGCG p.Gly104dup conservative_inframe_insertion Exon 1 of 1 6 NM_004364.5 ENSP00000427514.1
CEBPA-DTENST00000718467.1 linkn.46+319_46+321dupGCC intron_variant Intron 1 of 1
ENSG00000267727ENST00000587312.1 linkn.*161_*162insCGC downstream_gene_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000769
AC:
11
AN:
142988
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000253
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00236
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000305
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000400
AC:
22
AN:
54968
AF XY:
0.000433
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000169
Gnomad ASJ exome
AF:
0.00316
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000209
Gnomad OTH exome
AF:
0.000725
GnomAD4 exome
AF:
0.000100
AC:
118
AN:
1179146
Hom.:
0
Cov.:
33
AF XY:
0.000114
AC XY:
65
AN XY:
572104
show subpopulations
African (AFR)
AF:
0.000124
AC:
3
AN:
24108
American (AMR)
AF:
0.000192
AC:
3
AN:
15606
Ashkenazi Jewish (ASJ)
AF:
0.00250
AC:
47
AN:
18770
East Asian (EAS)
AF:
0.000153
AC:
4
AN:
26088
South Asian (SAS)
AF:
0.000262
AC:
11
AN:
42038
European-Finnish (FIN)
AF:
0.0000254
AC:
1
AN:
39428
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3342
European-Non Finnish (NFE)
AF:
0.0000436
AC:
42
AN:
963136
Other (OTH)
AF:
0.000150
AC:
7
AN:
46630
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
6
13
19
26
32
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000769
AC:
11
AN:
142988
Hom.:
0
Cov.:
32
AF XY:
0.0000717
AC XY:
5
AN XY:
69714
show subpopulations
African (AFR)
AF:
0.0000253
AC:
1
AN:
39540
American (AMR)
AF:
0.00
AC:
0
AN:
14406
Ashkenazi Jewish (ASJ)
AF:
0.00236
AC:
8
AN:
3392
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4048
South Asian (SAS)
AF:
0.00
AC:
0
AN:
3862
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
8908
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
308
European-Non Finnish (NFE)
AF:
0.0000305
AC:
2
AN:
65626
Other (OTH)
AF:
0.00
AC:
0
AN:
2026
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.000106

ClinVar

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

Submissions by phenotype

Acute myeloid leukemia Pathogenic:1Uncertain:1Benign:1
Dec 08, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Genomic Diagnostics Laboratory, National Institute of Medical Genomics
Significance:Likely pathogenic
Review Status:flagged submission
Collection Method:clinical testing

The variant was detected in bone marrow from patients, but it was not confirmed in the matched -

Jul 30, 2021
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

- -

Inborn genetic diseases Benign:1
Mar 20, 2024
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. -

Hereditary cancer-predisposing syndrome Benign:1
Dec 03, 2020
Sema4, Sema4
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:curation

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
2.9
Mutation Taster
=79/21
polymorphism

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs780345232; hg19: chr19-33793007; API