21-34792303-C-G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 1P and 2B. BP7PM2_SupportingBP4

This summary comes from the ClinGen Evidence Repository: NM_001754.5(RUNX1):c.1275G>C (p.Pro425=) is a synonymous variant which has a SpliceAI score ≤ 0.20 (0.0) (BP4). This variant has a SpliceAI score ≤ 0.20 (0.0) and evolutionary conservation algorithms predict the site as being not conserved (PhyloP score ≤ 2.0 (-1.62) (BP7). This variant is completely absent from all population databases with at least 20x coverage for RUNX1 (PM2_Supporting). 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: BP4, BP7, PM2_supporting. LINK:https://erepo.genome.network/evrepo/ui/classification/CA512341144/MONDO:0011071/008

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

RUNX1
NM_001754.5 synonymous

Scores

Clinical Significance

Likely benign reviewed by expert panel B:3

Conservation

PhyloP100: -1.56

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

hereditary thrombocytopenia and hematologic cancer predisposition syndrome
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
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

RUNX1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM2

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

BP4

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

BP7

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RUNX1	NM_001754.5	MANE Select	c.1275G>C	p.Pro425Pro	synonymous	Exon 9 of 9	NP_001745.2
	RUNX1	NM_001001890.3		c.1194G>C	p.Pro398Pro	synonymous	Exon 6 of 6	NP_001001890.1	Q01196-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
RUNX1	ENST00000675419.1	MANE Select	c.1275G>C	p.Pro425Pro	synonymous	Exon 9 of 9	ENSP00000501943.1	Q01196-8
RUNX1	ENST00000300305.7	TSL:1	c.1275G>C	p.Pro425Pro	synonymous	Exon 8 of 8	ENSP00000300305.3	Q01196-8
RUNX1	ENST00000344691.8	TSL:1	c.1194G>C	p.Pro398Pro	synonymous	Exon 6 of 6	ENSP00000340690.4	Q01196-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.0000123

AC:

AN:

1386428

Hom.:

Cov.:

AF XY:

0.0000161

AC XY:

AN XY:

684766

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.0000317

AC:

AN:

31532

American (AMR)

AF:

0.0000281

AC:

AN:

35544

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24796

East Asian (EAS)

AF:

0.0000847

AC:

AN:

35428

South Asian (SAS)

AF:

0.00

AC:

AN:

79282

European-Finnish (FIN)

AF:

0.0000477

AC:

AN:

41894

Middle Eastern (MID)

AF:

0.000179

AC:

AN:

5582

European-Non Finnish (NFE)

AF:

0.00000744

AC:

AN:

1074976

Other (OTH)

AF:

0.0000174

AC:

AN:

57394

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.243

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions as Germline

Significance:Likely benign

Revision:reviewed by expert panel

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hereditary thrombocytopenia and hematologic cancer predisposition syndrome (1)

Hereditary thrombocytopenia and hematological cancer predisposition syndrome associated with RUNX1 (1)

RUNX1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.53

CADD

Benign

4.1

(source)

DANN

Benign

0.71

PhyloP100

-1.6

Mutation Taster

=99/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over