rs8099879

Positions:

• chr19-17119477-A-C
• chr19-17119477-A-G
• chr19-17119477-A-T

Variant summary

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

The NM_004145.4(MYO9B):​c.840+16920A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.672 in 151,986 control chromosomes in the GnomAD database, including 34,839 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 0.67 (34839 hom., cov: 32)
• Consequence: MYO9B NM_004145.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.00500

Genes affected

MYO9B (HGNC:7609): (myosin IXB) This gene encodes a member of the myosin family of actin-based molecular motor heavy chain proteins. The protein represents an unconventional myosin; it should not be confused with the conventional non-muscle myosin-9 (MYH9). The protein has four IQ motifs located in the neck domain that bind calmodulin, which serves as a light chain. The protein complex has a single-headed structure and exhibits processive movement on actin filaments toward the minus-end. The protein also has rho-GTPase activity. Polymorphisms in this gene are associated with celiac disease and ulcerative colitis susceptibility. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.92).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.828 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MYO9B	NM_004145.4	c.840+16920A>C		intron_variant		ENST00000682292.1
MYO9B	NM_001130065.2	c.840+16920A>C		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYO9B	ENST00000682292.1	c.840+16920A>C		intron_variant			NM_004145.4	A2

Frequencies

GnomAD3 genomes AF: 0.672 AC: 102110 AN: 151868 Hom.: 34798 Cov.: 32

Gnomad AFR AF: 0.775

Gnomad AMI AF: 0.646

Gnomad AMR AF: 0.571

Gnomad ASJ AF: 0.677

Gnomad EAS AF: 0.849

Gnomad SAS AF: 0.523

Gnomad FIN AF: 0.669

Gnomad MID AF: 0.646

Gnomad NFE AF: 0.631

Gnomad OTH AF: 0.657

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

GnomAD4 genome AF: 0.672 AC: 102206 AN: 151986 Hom.: 34839 Cov.: 32 AF XY: 0.668 AC XY: 49645 AN XY: 74282

Gnomad4 AFR AF: 0.775

Gnomad4 AMR AF: 0.572

Gnomad4 ASJ AF: 0.677

Gnomad4 EAS AF: 0.849

Gnomad4 SAS AF: 0.522

Gnomad4 FIN AF: 0.669

Gnomad4 NFE AF: 0.631

Gnomad4 OTH AF: 0.656

Alfa AF: 0.617 Hom.: 16219

Bravo AF: 0.674

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.92
CADD	Benign	2.3
DANN	Benign	0.55

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: rs8099879; hg19: chr19-17230287;