chr21-34966009-C-T

Variant names:

• chr21-34966009-C-T
• rs9976122
• NM_001754.5:c.59-73046G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001754.5(RUNX1):​c.59-73046G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0903 in 152,230 control chromosomes in the GnomAD database, including 942 homozygotes. 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 0.090 (942 hom., cov: 32)
• Consequence: RUNX1 NM_001754.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.650
• Publications: 4 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: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.179 is higher than 0.05.

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.59-73046G>A		intron	N/A	NP_001745.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RUNX1	ENST00000675419.1	MANE Select	c.59-73046G>A		intron	N/A	ENSP00000501943.1
	RUNX1	ENST00000300305.7	TSL:1	c.59-73046G>A		intron	N/A	ENSP00000300305.3
	RUNX1	ENST00000416754.1	TSL:1	c.59-73046G>A		intron	N/A	ENSP00000405158.1

Frequencies

GnomAD3 genomes AF: 0.0903 AC: 13733 AN: 152112 Hom.: 936 Cov.: 32

Gnomad AFR AF: 0.182

Gnomad AMI AF: 0.00439

Gnomad AMR AF: 0.104

Gnomad ASJ AF: 0.0646

Gnomad EAS AF: 0.0526

Gnomad SAS AF: 0.0395

Gnomad FIN AF: 0.0672

Gnomad MID AF: 0.114

Gnomad NFE AF: 0.0437

Gnomad OTH AF: 0.0924

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0903 AC: 13752 AN: 152230 Hom.: 942 Cov.: 32 AF XY: 0.0902 AC XY: 6716 AN XY: 74430

African (AFR) AF: 0.182 AC: 7571 AN: 41516

American (AMR) AF: 0.103 AC: 1581 AN: 15304

Ashkenazi Jewish (ASJ) AF: 0.0646 AC: 224 AN: 3468

East Asian (EAS) AF: 0.0527 AC: 273 AN: 5178

South Asian (SAS) AF: 0.0396 AC: 191 AN: 4826

European-Finnish (FIN) AF: 0.0672 AC: 712 AN: 10602

Middle Eastern (MID) AF: 0.112 AC: 33 AN: 294

European-Non Finnish (NFE) AF: 0.0437 AC: 2970 AN: 68020

Other (OTH) AF: 0.0915 AC: 193 AN: 2110

Alfa AF: 0.0558 Hom.: 207

Bravo AF: 0.0990

Asia WGS AF: 0.0610 AC: 214 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.086
DANN	Benign	0.64
PhyloP100		-0.65

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: rs9976122; hg19: chr21-36338306;