rs9922682

Variant names:

• chr16-15852921-C-T
• rs9922682
• NM_002474.3:c.-18+4020G>A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_002474.3(MYH11):​c.-18+4020G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.189 in 152,038 control chromosomes in the GnomAD database, including 3,354 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 0.19 (3354 hom., cov: 31)
• Consequence: MYH11 NM_002474.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.691

Genes affected

MYH11 (HGNC:7569): (myosin heavy chain 11) The protein encoded by this gene is a smooth muscle myosin belonging to the myosin heavy chain family. The gene product is a subunit of a hexameric protein that consists of two heavy chain subunits and two pairs of non-identical light chain subunits. It functions as a major contractile protein, converting chemical energy into mechanical energy through the hydrolysis of ATP. A chromosomal rearrangement involving this gene is associated with acute myeloid leukemia of the M4Eo subtype. Mutations in this gene are associated with visceral myopathy, megacystis-microcolon-intestinal hypoperistalsis syndrome 2, and familial thoracic aortic aneurysm 4. [provided by RefSeq, May 2022]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.414 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYH11	NM_002474.3	c.-18+4020G>A		intron_variant	Intron 1 of 40	ENST00000300036.6	NP_002465.1
MYH11	NM_001040113.2	c.-18+4020G>A		intron_variant	Intron 1 of 42	ENST00000452625.7	NP_001035202.1
MYH11	NM_001040114.2	c.-18+4020G>A		intron_variant	Intron 1 of 41		NP_001035203.1
MYH11	NM_022844.3	c.-18+4020G>A		intron_variant	Intron 1 of 41		NP_074035.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYH11	ENST00000300036.6	c.-18+4020G>A		intron_variant	Intron 1 of 40	1	NM_002474.3	ENSP00000300036.5
MYH11	ENST00000452625.7	c.-18+4020G>A		intron_variant	Intron 1 of 42	1	NM_001040113.2	ENSP00000407821.2

Frequencies

GnomAD3 genomes AF: 0.189 AC: 28787 AN: 151920 Hom.: 3348 Cov.: 31

Gnomad AFR AF: 0.0635

Gnomad AMI AF: 0.166

Gnomad AMR AF: 0.183

Gnomad ASJ AF: 0.219

Gnomad EAS AF: 0.428

Gnomad SAS AF: 0.309

Gnomad FIN AF: 0.198

Gnomad MID AF: 0.222

Gnomad NFE AF: 0.237

Gnomad OTH AF: 0.217

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

GnomAD4 genome AF: 0.189 AC: 28793 AN: 152038 Hom.: 3354 Cov.: 31 AF XY: 0.188 AC XY: 13953 AN XY: 74290

Gnomad4 AFR AF: 0.0634

Gnomad4 AMR AF: 0.183

Gnomad4 ASJ AF: 0.219

Gnomad4 EAS AF: 0.429

Gnomad4 SAS AF: 0.311

Gnomad4 FIN AF: 0.198

Gnomad4 NFE AF: 0.237

Gnomad4 OTH AF: 0.216

Alfa AF: 0.203 Hom.: 568

Bravo AF: 0.183

Asia WGS AF: 0.348 AC: 1212 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.50
DANN	Benign	0.76

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

Publications

LitVar

Other links and lift over

dbSNP: rs9922682; hg19: chr16-15946778;