21-34792363-C-T

Variant names:

• chr21-34792363-C-T
• rs1488763689
• NM_001754.5:c.1215G>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP7 BP4

This summary comes from the ClinGen Evidence Repository: NM_001754.5(RUNX1): c.1215G>A (p.Leu405=) is a synonymous variant which is located at a non-conserved nucleotide per an evolutionary conservation algorithm (PhyloP score = -0.00400787 in GRCh38); it is not predicted to have any splicing impact per SpliceAI (BP7, BP4). In summary, this variant meets criteria to be classified as likely benign. ACMG/AMP criteria applied, as specified by the ClinGen Myeloid Malignancy Variant Curation Expert Panel for RUNX1: BP4, BP7. LINK:https://erepo.genome.network/evrepo/ui/classification/CA512341219/MONDO:0011071/008

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: RUNX1 NM_001754.5 synonymous
• Clinical Significance: Likely benign reviewed by expert panel B:3
• Conservation: PhyloP100: 0.0230
• 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: Labcorp Genetics (formerly Invitae), PanelApp Australia, Genomics England PanelApp, Ambry Genetics, G2P
• acute myeloid leukemia

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

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• 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.1215G>A	p.Leu405Leu	synonymous	Exon 9 of 9	NP_001745.2
	RUNX1	NM_001001890.3		c.1134G>A	p.Leu378Leu	synonymous	Exon 6 of 6	NP_001001890.1	Q01196-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RUNX1	ENST00000675419.1	MANE Select	c.1215G>A	p.Leu405Leu	synonymous	Exon 9 of 9	ENSP00000501943.1	Q01196-8
	RUNX1	ENST00000300305.7	TSL:1	c.1215G>A	p.Leu405Leu	synonymous	Exon 8 of 8	ENSP00000300305.3	Q01196-8
	RUNX1	ENST00000344691.8	TSL:1	c.1134G>A	p.Leu378Leu	synonymous	Exon 6 of 6	ENSP00000340690.4	Q01196-1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000595 AC: 1 AN: 168166 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000148

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000213 AC: 3 AN: 1410442 Hom.: 0 Cov.: 35 AF XY: 0.00 AC XY: 0 AN XY: 696884

African (AFR) AF: 0.00 AC: 0 AN: 32496

American (AMR) AF: 0.0000274 AC: 1 AN: 36438

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25212

East Asian (EAS) AF: 0.00 AC: 0 AN: 37216

South Asian (SAS) AF: 0.00 AC: 0 AN: 80248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49244

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5700

European-Non Finnish (NFE) AF: 0.00000184 AC: 2 AN: 1085402

Other (OTH) AF: 0.00 AC: 0 AN: 58486

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000469 Hom.: 0

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: reviewed by expert panel

Pathogenic	VUS	Benign	Condition
-	-	1	Hereditary thrombocytopenia and hematologic cancer predisposition syndrome (1)
-	-	1	Hereditary thrombocytopenia and hematological cancer predisposition syndrome associated with RUNX1 (1)
-	-	1	Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.50
CADD	Benign	5.4
DANN	Benign	0.87
PhyloP100		0.023

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

Other links and lift over

dbSNP: rs1488763689; hg19: chr21-36164660;