rs587778192

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM1BP4

The NM_004364.5(CEBPA):c.1009A>T(p.Thr337Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000133 in 1,611,106 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 variant affecting the same amino acid position, but resulting in a different missense (i.e. T337M) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

CEBPA
NM_004364.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4O:1

Conservation

PhyloP100: 5.01

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:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM1

In a domain bZIP (size 63) in uniprot entity CEBPA_HUMAN there are 13 pathogenic changes around while only 0 benign (100%) in NM_004364.5

BP4

Computational evidence support a benign effect (MetaRNN=0.29805362).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
CEBPA	NM_004364.5 linkuse as main transcript	c.1009A>T	p.Thr337Ser	missense_variant	1/1	ENST00000498907.3
CEBPA	NM_001287424.2 linkuse as main transcript	c.1114A>T	p.Thr372Ser	missense_variant	1/1
CEBPA	NM_001287435.2 linkuse as main transcript	c.967A>T	p.Thr323Ser	missense_variant	1/1
CEBPA	NM_001285829.2 linkuse as main transcript	c.652A>T	p.Thr218Ser	missense_variant	1/1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CEBPA	ENST00000498907.3 linkuse as main transcript	c.1009A>T	p.Thr337Ser	missense_variant	1/1		NM_004364.5	P1	P49715-1
	ENST00000587312.1 linkuse as main transcript	n.128T>A		non_coding_transcript_exon_variant	1/2	3

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152228

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000163

AC:

AN:

245796

Hom.:

AF XY:

0.0000299

AC XY:

AN XY:

133920

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000359

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000144

AC:

210

AN:

1458878

Hom.:

Cov.:

AF XY:

0.000132

AC XY:

AN XY:

725872

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.000184

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74368

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:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Acute myeloid leukemia

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Nov 17, 2023	This sequence change replaces threonine, which is neutral and polar, with serine, which is neutral and polar, at codon 337 of the CEBPA protein (p.Thr337Ser). This variant is present in population databases (rs587778192, gnomAD 0.005%). This missense change has been observed in individual(s) with acute myeloid leukemia, but the germline nature of this variant is unclear (PMID: 28250006). ClinVar contains an entry for this variant (Variation ID: 133885). 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. -
Uncertain significance, criteria provided, single submitter	clinical testing	Baylor Genetics	Sep 26, 2023	- -

not specified

Uncertain:1Other:1

Uncertain significance, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Jan 03, 2022	DNA sequence analysis of the CEBPA gene demonstrated a sequence change, c.1009A>T, in exon 1 that results in an amino acid change, p.Thr337Ser. This sequence change has been described in the gnomAD database with a frequency of 0.005% in the non-Finnish European subpopulation (dbSNP rs587778192). The p.Thr337Ser change affects a highly conserved amino acid residue located in a domain of the CEBPA protein that is known to be functional. The p.Thr337Ser substitution appears to be benign using several in-silico pathogenicity prediction tools (SIFT, PolyPhen2, Align GVGD, REVEL). This sequence change does not appear to have been previously described in individuals with CEBPA-related disorders. Due to insufficient evidences and the lack of functional studies, the clinical significance of the p.Thr337Ser change remains unknown at this time. -
not provided, no classification provided	reference population	ITMI	Sep 19, 2013	- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Aug 01, 2023

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 31751678, 24728327, 28250006, 21455213) -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.90

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.40

Cadd

Uncertain

Dann

Benign

0.96

DEOGEN2

Uncertain

0.61

Eigen

Benign

-0.050

Eigen_PC

Benign

0.081

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.71

M_CAP

Benign

0.015

MetaRNN

Benign

0.30

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.6

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.80

PROVEAN

Uncertain

-3.4

REVEL

Benign

0.077

Sift

Benign

0.12

Sift4G

Benign

0.12

Polyphen

0.13

Vest4

0.42

MutPred

0.32

Gain of disorder (P = 0.0239);

MVP

0.33

ClinPred

0.62

GERP RS

4.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.43

gMVP

0.86

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over