21-34792312-C-G

Position:

chr21-34792312-C-G

Variant summary

Our verdict is Uncertain significance. Variant got -1 ACMG points: 0P and 1B. BP4

This summary comes from the ClinGen Evidence Repository: NM_001754.5(RUNX1):c.1266G>C (p.Glu422Asp) is a missense variant which has a REVEL score < 0.50 (0.11) and a SpliceAI score ≤ 0.20 (0.0) (BP4). In summary, the clinical significance of this variant is uncertain. ACMG/AMP criteria applied, as specified by the Myeloid Malignancy Variant Curation Expert Panel for RUNX1: BP4. LINK:https://erepo.genome.network/evrepo/ui/classification/CA16616259/MONDO:0011071/008

Frequency

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

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

RUNX1
NM_001754.5 missense

Scores

Clinical Significance

Uncertain significance reviewed by expert panel U:4

Conservation

PhyloP100: -0.334

Variant links:

Genes affected

RUNX1 (HGNC:10471): (RUNX family transcription factor 1) Core binding factor (CBF) is a heterodimeric transcription factor that binds to the core element of many enhancers and promoters. The protein encoded by this gene represents the alpha subunit of CBF and is thought to be involved in the development of normal hematopoiesis. Chromosomal translocations involving this gene are well-documented and have been associated with several types of leukemia. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

RUNX1 links:

RUNX1 (HGNC:):

RUNX1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got -1 ACMG points.

BP4

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RUNX1	NM_001754.5 linkuse as main transcript	c.1266G>C	p.Glu422Asp	missense_variant	9/9	ENST00000675419.1	NP_001745.2	Q01196-8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RUNX1	ENST00000675419.1 linkuse as main transcript	c.1266G>C	p.Glu422Asp	missense_variant	9/9		NM_001754.5	ENSP00000501943.1		Q01196-8

Frequencies

GnomAD3 genomes

AF:

0.00000663

AC:

AN:

150848

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000244

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000139

AC:

AN:

144372

Hom.:

AF XY:

0.0000129

AC XY:

AN XY:

77770

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000406

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:

0.0000181

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000202

AC:

AN:

1388352

Hom.:

Cov.:

AF XY:

0.0000190

AC XY:

AN XY:

685768

show subpopulations

Gnomad4 AFR exome

AF:

0.0000952

Gnomad4 AMR exome

AF:

0.0000281

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:

0.0000214

Gnomad4 OTH exome

AF:

0.0000174

GnomAD4 genome

AF:

0.00000663

AC:

AN:

150848

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

73642

show subpopulations

Gnomad4 AFR

AF:

0.0000244

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 07, 2024

The p.E422D variant (also known as c.1266G>C), located in coding exon 8 of the RUNX1 gene, results from a G to C substitution at nucleotide position 1266. The glutamic acid at codon 422 is replaced by aspartic acid, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Hereditary thrombocytopenia and hematologic cancer predisposition syndrome

Uncertain:1

Uncertain significance, reviewed by expert panel

curation

ClinGen Myeloid Malignancy Variant Curation Expert Panel

Aug 16, 2024

NM_001754.5(RUNX1):c.1266G>C (p.Glu422Asp) is a missense variant which has a REVEL score < 0.50 (0.11) and a SpliceAI score ≤ 0.20 (0.0) (BP4). In summary, the clinical significance of this variant is uncertain. ACMG/AMP criteria applied, as specified by the Myeloid Malignancy Variant Curation Expert Panel for RUNX1: BP4. -

Hereditary thrombocytopenia and hematological cancer predisposition syndrome associated with RUNX1

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 16, 2023

This sequence change replaces glutamic acid, which is acidic and polar, with aspartic acid, which is acidic and polar, at codon 422 of the RUNX1 protein (p.Glu422Asp). 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 RUNX1-related conditions. ClinVar contains an entry for this variant (Variation ID: 409823). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The aspartic acid amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

Acute myeloid leukemia

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Baylor Genetics

Dec 08, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.061

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.67

CADD

Benign

DANN

Benign

0.36

DEOGEN2

Benign

0.25

T;.;.;.

Eigen

Benign

-0.69

Eigen_PC

Benign

-0.50

FATHMM_MKL

Benign

0.20

LIST_S2

Benign

0.84

T;T;.;T

M_CAP

Uncertain

0.22

MetaRNN

Benign

0.058

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.80

N;.;.;.

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

0.47

N;N;N;N

REVEL

Benign

0.11

Sift

Benign

1.0

T;T;T;T

Sift4G

Benign

1.0

T;T;T;T

Polyphen

0.39

B;B;B;.

Vest4

0.087

MutPred

0.42

Gain of sheet (P = 0.1208);.;.;.;

MVP

0.29

MPC

0.55

ClinPred

0.022

GERP RS

4.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.065

gMVP

0.30

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