Genetic Variant MYO9B:p.Ala15Val (chr19-17101761-C-T) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_004145.4(MYO9B):c.44C>T(p.Ala15Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000124 in 1,596,152 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A15T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 2 hom. )

Consequence

MYO9B
NM_004145.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:1

Conservation

PhyloP100: 0.262

Publications

1 publications found

Variant links:

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]

MYO9B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.004207909).

BS2

High AC in GnomAd4 at 5 AD gene.

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYO9B	NM_004145.4	MANE Select	c.44C>T	p.Ala15Val	missense	Exon 2 of 40	NP_004136.2
	MYO9B	NM_001130065.2		c.44C>T	p.Ala15Val	missense	Exon 2 of 40	NP_001123537.1	Q13459-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MYO9B	ENST00000682292.1	MANE Select	c.44C>T	p.Ala15Val	missense	Exon 2 of 40	ENSP00000507803.1	Q13459-1
MYO9B	ENST00000595618.5	TSL:1	c.44C>T	p.Ala15Val	missense	Exon 2 of 40	ENSP00000471457.1	Q13459-2
MYO9B	ENST00000594824.5	TSL:5	c.44C>T	p.Ala15Val	missense	Exon 2 of 40	ENSP00000471367.1	M0R0P8

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000774

AC:

173

AN:

223424

AF XY:

0.000555

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00524

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000976

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000134

AC:

193

AN:

1443904

Hom.:

Cov.:

AF XY:

0.000111

AC XY:

AN XY:

717978

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33196

American (AMR)

AF:

0.00428

AC:

186

AN:

43508

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25880

East Asian (EAS)

AF:

0.0000256

AC:

AN:

39128

South Asian (SAS)

AF:

0.0000118

AC:

AN:

84810

European-Finnish (FIN)

AF:

0.00

AC:

AN:

43512

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.00000361

AC:

AN:

1108210

Other (OTH)

AF:

0.0000167

AC:

AN:

59904

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152248

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74424

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41556

American (AMR)

AF:

0.000327

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5168

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68002

Other (OTH)

AF:

0.00

AC:

AN:

2106

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.545

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000124

Hom.:

Bravo

AF:

0.000306

ExAC

AF:

0.000563

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

MYO9B-related disorder (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.38

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.023

Eigen

Benign

-0.74

Eigen_PC

Benign

-0.71

FATHMM_MKL

Benign

0.47

LIST_S2

Benign

0.78

MetaRNN

Benign

0.0042

MetaSVM

Benign

-0.70

MutationAssessor

Uncertain

2.0

PhyloP100

0.26

PrimateAI

Benign

0.48

PROVEAN

Benign

-1.8

REVEL

Benign

0.092

Sift

Benign

0.21

Sift4G

Benign

0.31

Vest4

0.32

MVP

0.60

MPC

0.79

ClinPred

0.047

GERP RS

2.0

PromoterAI

-0.017

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

gMVP

0.22

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over