chr19-17202183-C-G

Variant names:

• chr19-17202183-C-G
• rs2305765
• NM_004145.4:c.4716C>G

Variant summary

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

The NM_004145.4(MYO9B):​c.4716C>G​(p.Val1572Val) 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.

• Frequency: Genomes: not found (cov: 31)
• Consequence: MYO9B NM_004145.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.848
• Publications: 29 publications found

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

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=-0.59).
• BP7: Synonymous conserved (PhyloP=-0.848 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004145.4. 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
	MYO9B	NM_004145.4	MANE Select	c.4716C>G	p.Val1572Val	synonymous	Exon 28 of 40	NP_004136.2
	MYO9B	NM_001130065.2		c.4716C>G	p.Val1572Val	synonymous	Exon 28 of 40	NP_001123537.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYO9B	ENST00000682292.1	MANE Select	c.4716C>G	p.Val1572Val	synonymous	Exon 28 of 40	ENSP00000507803.1
	MYO9B	ENST00000595618.5	TSL:1	c.4716C>G	p.Val1572Val	synonymous	Exon 28 of 40	ENSP00000471457.1
	MYO9B	ENST00000593533.1	TSL:1	n.669C>G		non_coding_transcript_exon	Exon 5 of 7

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 51

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.59
CADD	Benign	0.33
DANN	Benign	0.69
PhyloP100		-0.85

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: rs2305765; hg19: chr19-17312992;