rs1060502120

Variant names:

• chr19-33302237-T-A
• rs1060502120
• NM_004364.5:c.178A>T

Your query was ambiguous. Multiple possible variants found:

• chr19-33302237-T-A
• chr19-33302237-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004364.5(CEBPA):​c.178A>T​(p.Thr60Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: CEBPA NM_004364.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.85

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2280092).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CEBPA	NM_004364.5	c.178A>T	p.Thr60Ser	missense_variant	Exon 1 of 1	ENST00000498907.3	NP_004355.2
CEBPA	NM_001287424.2	c.283A>T	p.Thr95Ser	missense_variant	Exon 1 of 1		NP_001274353.1
CEBPA	NM_001287435.2	c.136A>T	p.Thr46Ser	missense_variant	Exon 1 of 1		NP_001274364.1
CEBPA	NM_001285829.2	c.-180A>T		5_prime_UTR_variant	Exon 1 of 1		NP_001272758.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CEBPA	ENST00000498907.3	c.178A>T	p.Thr60Ser	missense_variant	Exon 1 of 1	6	NM_004364.5	ENSP00000427514.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Acute myeloid leukemia Uncertain:1

Jun 03, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In summary, this variant is a novel missense change that is not predicted to affect protein function. There is no indication that it causes disease, but the available evidence is currently insufficient to prove that conclusively. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies. While this variant is not present in population databases (ExAC no frequency), the frequency information is unreliable, as metrics indicate poor data quality at this position in the ExAC database. This variant has not been reported in the literature in an individual with a CEBPA-related disease. This sequence change replaces threonine with serine at codon 60 of the CEBPA protein (p.Thr60Ser). The threonine residue is moderately conserved and there is a small physicochemical difference between threonine and serine. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.31
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.52
CADD	Benign	22
DANN	Benign	0.94
DEOGEN2	Benign	0.19	T
Eigen	Benign	-0.41
Eigen_PC	Benign	-0.25
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.67	T
M_CAP	Pathogenic	0.83	D
MetaRNN	Benign	0.23	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.97	L
PrimateAI	Pathogenic	0.95	D
PROVEAN	Benign	-0.72	N
REVEL	Benign	0.063
Sift	Benign	0.32	T
Sift4G	Benign	0.80	T
Polyphen		0.028	B
Vest4		0.11
MutPred		0.20		Gain of disorder (P = 0.0348);
MVP		0.31
ClinPred		0.28	T
GERP RS		4.0
Varity_R		0.24
gMVP		0.25

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

Other links and lift over

dbSNP: rs1060502120; hg19: chr19-33793143;