8-91960491-C-G

Variant names:

• chr8-91960491-C-G
• rs138291681
• NM_175634.3:c.1566G>C

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_175634.3(RUNX1T1):​c.1566G>C​(p.Ala522Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. A522A) has been classified as Benign.

• Frequency: Genomes: not found (cov: 31)
• Consequence: RUNX1T1 NM_175634.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.662
• Publications: 3 publications found

Genes affected

RUNX1T1 (HGNC:1535): (RUNX1 partner transcriptional co-repressor 1) This gene encodes a member of the myeloid translocation gene family which interact with DNA-bound transcription factors and recruit a range of corepressors to facilitate transcriptional repression. The t(8;21)(q22;q22) translocation is one of the most frequent karyotypic abnormalities in acute myeloid leukemia. The translocation produces a chimeric gene made up of the 5'-region of the runt-related transcription factor 1 gene fused to the 3'-region of this gene. The chimeric protein is thought to associate with the nuclear corepressor/histone deacetylase complex to block hematopoietic differentiation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2010]

RUNX1T1 Gene-Disease associations (from GenCC):

• neurodevelopmental disorder

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: Ambry Genetics, PanelApp Australia

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.73).
• BP7: Synonymous conserved (PhyloP=-0.662 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_175634.3. 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
	RUNX1T1	NM_175634.3	MANE Select	c.1566G>C	p.Ala522Ala	synonymous	Exon 12 of 12	NP_783552.1	Q06455-1
	RUNX1T1	NM_001198679.3		c.1743G>C	p.Ala581Ala	synonymous	Exon 12 of 12	NP_001185608.1	A0A0A0MSU1
	RUNX1T1	NM_001395209.1		c.1650G>C	p.Ala550Ala	synonymous	Exon 12 of 12	NP_001382138.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RUNX1T1	ENST00000523629.7	TSL:5 MANE Select	c.1566G>C	p.Ala522Ala	synonymous	Exon 12 of 12	ENSP00000428543.1	Q06455-1
	RUNX1T1	ENST00000396218.5	TSL:1	c.1485G>C	p.Ala495Ala	synonymous	Exon 11 of 11	ENSP00000379520.1	Q06455-2
	RUNX1T1	ENST00000518844.5	TSL:1	c.1485G>C	p.Ala495Ala	synonymous	Exon 15 of 15	ENSP00000430728.1	Q06455-2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.73
CADD	Benign	0.61
DANN	Benign	0.57
PhyloP100		-0.66

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: rs138291681; hg19: chr8-92972719;