chr21-34788158-C-T

Variant names:

Variant summary

Our verdict is The variant received -16 classification points (ACMG Germline Pathogenicity v2019). BS2BP4_StrongBP6_Very_Strong

The NM_001754.5(RUNX1):c.*3977G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a cumulative frequency of 0.000227 (AC=53) in the gnomAD database across 233,436 control chromosomes (no homozygotes observed). The grpmax filtering allele frequency (95% CI) is 0.00271. In-silico predictor (BayesDel (noAF)) classifies this variant as likely benign. Splicing prediction tools (SpliceAI) predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign/Likely Benign (★★★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00036 ( 0 hom. )

Consequence

RUNX1
NM_001754.5 3_prime_UTR

Scores

Clinical Significance

Benign reviewed by expert panel B:1

Conservation

PhyloP100: -1.43

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

RUNX1 links:

Genome browser will be placed here

new If you want to explore the variant's impact on the transcript NM_001754.5, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

Classification according to ACMG Germline Pathogenicity v2019

Specifications for RUNX1 are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.

Classification was made for transcript

Our verdict: Benign. The variant received -16 points.

BP4

Computational evidence supports benign — no pathogenic computational or splicing signal (BP4); Splicing verdict: benign (Strong).; Germline computational verdict: benign (Strong).

BP6

ClinVar ≥3 stars benign — very strong (BP6); ClinVar germline classification: Benign/Likely Benign, 3 star(s).

BS2

Pure AD gene with cumulative gnomAD AC ≥5 — observed in healthy adults (BS2); GnomAD homozygous count = 0.; Cumulative gnomAD AC = 53 (pure AD gene, not AR).

Variant Effect in Transcripts

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

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RUNX1	NM_001754.5	MANE Select	c.*3977G>A		3_prime_UTR	Exon 9 of 9	NP_001745.2
	RUNX1	NM_001001890.3		c.*3977G>A		3_prime_UTR	Exon 6 of 6	NP_001001890.1	Q01196-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
RUNX1	ENST00000675419.1	MANE Select	c.*3977G>A	3_prime_UTR	Exon 9 of 9	ENSP00000501943.1	Q01196-8
RUNX1	ENST00000300305.7	TSL:1	c.*3977G>A	3_prime_UTR	Exon 8 of 8	ENSP00000300305.3	Q01196-8
RUNX1	ENST00000344691.8	TSL:1	c.*3977G>A	3_prime_UTR	Exon 6 of 6	ENSP00000340690.4	Q01196-1

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

AN:

152208

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00423

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.000358

AC:

AN:

81110

Hom.:

Cov.:

AF XY:

0.000375

AC XY:

AN XY:

37310

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

3894

American (AMR)

AF:

0.00

AC:

AN:

2500

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

5124

East Asian (EAS)

AF:

0.00219

AC:

AN:

11398

South Asian (SAS)

AF:

0.00

AC:

AN:

702

European-Finnish (FIN)

AF:

0.00

AC:

AN:

218

Middle Eastern (MID)

AF:

0.00

AC:

AN:

488

European-Non Finnish (NFE)

AF:

0.0000200

AC:

AN:

50012

Other (OTH)

AF:

0.000443

AC:

AN:

6774

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

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

AF:

0.000158

AC:

AN:

152326

Hom.:

Cov.:

AF XY:

0.000174

AC XY:

AN XY:

74500

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41568

American (AMR)

AF:

0.000131

AC:

AN:

15314

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00405

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.000125

Asia WGS

AF:

0.00144

AC:

AN:

3478

Local populations

ToMMo 61KJPN (+60KJPN MNV)

AF:

0.00183

AC:

224

AN:

122710

WBBC (Westlake BioBank for Chinese) pilot

AF:

0.00279

AC:

AN:

8960

Hom.:

ClinVar

ClinVar submissions

Significance:Benign

Revision:reviewed by expert panel

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hereditary thrombocytopenia and hematologic cancer predisposition syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.87

CADD

Benign

0.57

(source)

DANN

Benign

0.67

PhyloP100

-1.4

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

Classification according to ACMG Germline Pathogenicity v2019

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

Local populations

ClinVar

Computational scores

Splicing

Publications

Other links and lift over