Variant 19-17102381-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_004145.4(MYO9B):c.664G>A(p.Ala222Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000109 in 1,461,692 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000011 ( 1 hom. )

Consequence

MYO9B
NM_004145.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.46

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:

MYO9B (HGNC:):

MYO9B links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.887

BS2

High AC in GnomAdExome4 at 16 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MYO9B	NM_004145.4 linkuse as main transcript	c.664G>A	p.Ala222Thr	missense_variant	2/40	ENST00000682292.1	NP_004136.2	Q13459-1B0I1T6Q8WVD2
MYO9B	NM_001130065.2 linkuse as main transcript	c.664G>A	p.Ala222Thr	missense_variant	2/40		NP_001123537.1	Q8WVD2Q4LE74

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MYO9B	ENST00000682292.1 linkuse as main transcript	c.664G>A	p.Ala222Thr	missense_variant	2/40		NM_004145.4	ENSP00000507803.1		Q13459-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

249214

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135200

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000109

AC:

AN:

1461692

Hom.:

Cov.:

AF XY:

0.0000165

AC XY:

AN XY:

727128

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000162

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000825

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 09, 2021

The c.664G>A (p.A222T) alteration is located in exon 2 (coding exon 1) of the MYO9B gene. This alteration results from a G to A substitution at nucleotide position 664, causing the alanine (A) at amino acid position 222 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Uncertain

0.12

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.66

.;D;.;.

Eigen

Pathogenic

0.81

Eigen_PC

Pathogenic

0.79

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.91

.;D;D;D

M_CAP

Uncertain

0.11

MetaRNN

Pathogenic

0.89

D;D;D;D

MetaSVM

Uncertain

0.54

MutationAssessor

Uncertain

2.1

M;.;M;.

MutationTaster

Benign

0.99

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-3.5

.;.;D;.

REVEL

Pathogenic

0.77

Sift

Benign

0.068

.;.;T;.

Sift4G

Uncertain

0.0020

D;D;D;D

Vest4

0.78

MutPred

0.83

Loss of catalytic residue at A222 (P = 0.0835);Loss of catalytic residue at A222 (P = 0.0835);Loss of catalytic residue at A222 (P = 0.0835);Loss of catalytic residue at A222 (P = 0.0835);

MVP

0.89

MPC

1.7

ClinPred

0.91

GERP RS

5.5

gMVP

0.90

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over