21-34834596-G-C

Variant names:

• chr21-34834596-G-C
• rs1555890007
• NM_001754.5:c.619C>G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PM2_Supporting

This summary comes from the ClinGen Evidence Repository: NM_001754.5(RUNX1): c.619C>G (p.Arg207Gly) is a missense variant which is completely absent from all population databases with at least 20x coverage for RUNX1 (PM2_Supporting). 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: PM2_supporting. LINK:https://erepo.genome.network/evrepo/ui/classification/CA410207205/MONDO:0011071/008

• Frequency: Genomes: not found (cov: 31)
• Consequence: RUNX1 NM_001754.5 missense
• Clinical Significance: Uncertain significance reviewed by expert panel U:3
• Conservation: PhyloP100: 5.87
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• hereditary thrombocytopenia and hematologic cancer predisposition syndrome

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
• hereditary thrombocytopenia and hematological cancer predisposition syndrome associated with RUNX1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae)
• acute myeloid leukemia

  Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: For more information check the summary or visit ClinGen Evidence Repository.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001754.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RUNX1	NM_001754.5	MANE Select	c.619C>G	p.Arg207Gly	missense	Exon 7 of 9	NP_001745.2
	RUNX1	NM_001001890.3		c.538C>G	p.Arg180Gly	missense	Exon 4 of 6	NP_001001890.1
	RUNX1	NM_001122607.2		c.538C>G	p.Arg180Gly	missense	Exon 4 of 5	NP_001116079.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RUNX1	ENST00000675419.1	MANE Select	c.619C>G	p.Arg207Gly	missense	Exon 7 of 9	ENSP00000501943.1
	RUNX1	ENST00000300305.7	TSL:1	c.619C>G	p.Arg207Gly	missense	Exon 6 of 8	ENSP00000300305.3
	RUNX1	ENST00000344691.8	TSL:1	c.538C>G	p.Arg180Gly	missense	Exon 4 of 6	ENSP00000340690.4

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: reviewed by expert panel

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Jul 07, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.R207G variant (also known as c.619C>G), located in coding exon 6 of the RUNX1 gene, results from a C to G substitution at nucleotide position 619. The arginine at codon 207 is replaced by glycine, an amino acid with dissimilar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear.

not provided Uncertain:1

Jul 23, 2019

Revvity Omics, Revvity

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Hereditary thrombocytopenia and hematologic cancer predisposition syndrome Uncertain:1

Jul 11, 2024

ClinGen Myeloid Malignancy Variant Curation Expert Panel

Significance: Uncertain significance

Review Status: reviewed by expert panel

Collection Method: curation

NM_001754.5(RUNX1): c.619C>G (p.Arg207Gly) is a missense variant which is completely absent from all population databases with at least 20x coverage for RUNX1 (PM2_Supporting). 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: PM2_supporting.

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.34	D
BayesDel_noAF	Pathogenic	0.25
CADD	Pathogenic	31
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.99	D
Eigen	Uncertain	0.65
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.97	D
M_CAP	Pathogenic	0.81	D
MetaRNN	Pathogenic	0.89	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Uncertain	2.1	M
PhyloP100		5.9
PrimateAI	Pathogenic	0.87	D
PROVEAN	Pathogenic	-5.6	D
REVEL	Pathogenic	0.85
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.013	D
Polyphen		1.0	D
Vest4		0.79
MutPred		0.59		Gain of ubiquitination at K182 (P = 0.0232)
MVP		0.97
MPC		1.7
ClinPred		0.99	D
GERP RS		4.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.86
gMVP		0.70
Mutation Taster		=29/71	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs1555890007; hg19: chr21-36206893; COSMIC: COSV55897913;