21-34834414-C-T

Position:

chr21-34834414-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4BS3_Supporting

This summary comes from the ClinGen Evidence Repository: NM_001754.5(RUNX1):c.801G>A (p.Met267Ile) is a missense variant which has a REVEL score < 0.50 (0.283) and a SpliceAI score ≤ 0.20 (Acceptor Loss = 0.01) (BP4). Transactivation assays demonstrating normal transactivation (80-115% of wt) (BS3_Supporting; PMID:34166225). In summary, this variant meets criteria to be classified as likely benign. ACMG/AMP criteria applied, as specified by the Myeloid Malignancy Variant Curation Expert Panel for RUNX1: BS3, BP4. LINK:https://erepo.genome.network/evrepo/ui/classification/CA10014356/MONDO:0011071/008

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000090 ( 0 hom. )

Consequence

RUNX1
NM_001754.5 missense

Scores

Clinical Significance

Likely benign reviewed by expert panel U:2B:1

Conservation

PhyloP100: 1.19

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 Likely_benign. Variant got -2 ACMG points.

BP4

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

BS3

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.801G>A	p.Met267Ile	missense_variant	7/9	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.801G>A	p.Met267Ile	missense_variant	7/9		NM_001754.5	ENSP00000501943.1		Q01196-8

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

151924

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000402

AC:

AN:

248848

Hom.:

AF XY:

0.0000446

AC XY:

AN XY:

134580

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000289

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:

0.0000718

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000899

AC:

131

AN:

1457412

Hom.:

Cov.:

AF XY:

0.0000870

AC XY:

AN XY:

723974

show subpopulations

Gnomad4 AFR exome

AF:

0.0000898

Gnomad4 AMR exome

AF:

0.0000448

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:

0.000110

Gnomad4 OTH exome

AF:

0.0000665

GnomAD4 genome

AF:

0.0000395

AC:

AN:

151924

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74208

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000387

Hom.:

Bravo

AF:

0.0000567

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Likely benign

Submissions summary: Uncertain:2Benign:1

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

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

Oct 17, 2023

This sequence change replaces methionine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 267 of the RUNX1 protein (p.Met267Ile). This variant is present in population databases (rs757570529, gnomAD 0.007%). This missense change has been observed in individual(s) with acute myeloid leukemia (AML) and acute lymphoblastic leukemia (ALL) (PMID: 24523240, 27137476, 34166225). This variant is also known as p.Met240Ile. ClinVar contains an entry for this variant (Variation ID: 409818). 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 isoleucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. Experimental studies have shown that this missense change does not substantially affect RUNX1 function (PMID: 34166225). 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

Feb 07, 2024

- -

Hereditary thrombocytopenia and hematologic cancer predisposition syndrome

Benign:1

Likely benign, reviewed by expert panel

curation

ClinGen Myeloid Malignancy Variant Curation Expert Panel

Jun 24, 2024

NM_001754.5(RUNX1):c.801G>A (p.Met267Ile) is a missense variant which has a REVEL score < 0.50 (0.283) and a SpliceAI score ≤ 0.20 (Acceptor Loss = 0.01) (BP4). Transactivation assays demonstrating normal transactivation (80-115% of wt) (BS3_Supporting; PMID: 34166225). In summary, this variant meets criteria to be classified as likely benign. ACMG/AMP criteria applied, as specified by the Myeloid Malignancy Variant Curation Expert Panel for RUNX1: BS3, BP4. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.076

BayesDel_addAF

Benign

-0.082

BayesDel_noAF

Benign

-0.17

CADD

Benign

DANN

Benign

0.82

DEOGEN2

Benign

0.32

T;.;.;.;.

Eigen

Benign

-0.85

Eigen_PC

Benign

-0.60

FATHMM_MKL

Benign

0.71

LIST_S2

Benign

0.81

T;T;.;T;T

M_CAP

Uncertain

0.27

MetaRNN

Benign

0.058

T;T;T;T;T

MetaSVM

Uncertain

-0.042

MutationAssessor

Benign

-0.60

N;.;.;N;.

PrimateAI

Uncertain

0.57

PROVEAN

Benign

0.42

N;N;N;N;N

REVEL

Benign

0.28

Sift

Benign

1.0

T;T;T;T;T

Sift4G

Benign

1.0

T;T;T;T;.

Polyphen

0.0

B;B;B;B;.

Vest4

0.20

MutPred

0.25

Gain of catalytic residue at M240 (P = 0.0376);.;.;Gain of catalytic residue at M240 (P = 0.0376);.;

MVP

0.75

MPC

0.67

ClinPred

0.17

GERP RS

0.59

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.044

gMVP

0.079

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