Genetic Variant RUNX1:c.614-34C>A (chr21-34834635-G-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001754.5(RUNX1):c.614-34C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 26)

Exomes 𝑓: 0.000038 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

RUNX1
NM_001754.5 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.07

Publications

5 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: 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

RUNX1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.86).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RUNX1	NM_001754.5 link	c.614-34C>A		intron_variant	Intron 6 of 8	ENST00000675419.1	NP_001745.2	Q01196-8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RUNX1	ENST00000675419.1 link	c.614-34C>A		intron_variant	Intron 6 of 8		NM_001754.5	ENSP00000501943.1		Q01196-8

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

151042

Hom.:

Cov.:

Gnomad AFR

AF:

0.00

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

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000379

AC:

AN:

976118

Hom.:

Cov.:

AF XY:

0.0000238

AC XY:

AN XY:

504032

show subpopulations

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

African (AFR)

AF:

0.0000829

AC:

AN:

24130

American (AMR)

AF:

0.00

AC:

AN:

43644

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

22810

East Asian (EAS)

AF:

0.0000542

AC:

AN:

36934

South Asian (SAS)

AF:

0.0000262

AC:

AN:

76396

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50314

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3448

European-Non Finnish (NFE)

AF:

0.0000445

AC:

AN:

674522

Other (OTH)

AF:

0.0000228

AC:

AN:

43920

⚠️ 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: 0.301

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

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

151160

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

73814

African (AFR)

AF:

0.00

AC:

AN:

41080

American (AMR)

AF:

0.00

AC:

AN:

15220

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5102

South Asian (SAS)

AF:

0.00

AC:

AN:

4760

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10376

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67866

Other (OTH)

AF:

0.00

AC:

AN:

2094

Alfa

AF:

0.00

Hom.:

12066

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.86

CADD

Benign

7.5

(source)

DANN

Benign

0.49

PhyloP100

1.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.0

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over