Genetic Variant MYD88:p.Arg98Cys (chr3-38138992-C-T) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_002468.5(MYD88):c.292C>T(p.Arg98Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000000687 in 1,454,574 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. R98R) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

MYD88
NM_002468.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.78

Publications

4 publications found

Variant links:

Genes affected

MYD88 (HGNC:7562): (MYD88 innate immune signal transduction adaptor) This gene encodes a cytosolic adapter protein that plays a central role in the innate and adaptive immune response. This protein functions as an essential signal transducer in the interleukin-1 and Toll-like receptor signaling pathways. These pathways regulate that activation of numerous proinflammatory genes. The encoded protein consists of an N-terminal death domain and a C-terminal Toll-interleukin1 receptor domain. Patients with defects in this gene have an increased susceptibility to pyogenic bacterial infections. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Feb 2010]

MYD88 Gene-Disease associations (from GenCC):

pyogenic bacterial infections due to MyD88 deficiency
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics

MYD88 links:

ENSG00000299092 (HGNC:):

ENSG00000299092 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.989

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002468.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MYD88	NM_002468.5	MANE Select	c.292C>T	p.Arg98Cys	missense	Exon 1 of 5	NP_002459.3	Q99836-1
MYD88	NM_001172567.2		c.292C>T	p.Arg98Cys	missense	Exon 1 of 5	NP_001166038.2	Q99836-6
MYD88	NM_001172568.2		c.292C>T	p.Arg98Cys	missense	Exon 1 of 4	NP_001166039.2	Q99836-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MYD88	ENST00000650905.2	MANE Select	c.292C>T	p.Arg98Cys	missense	Exon 1 of 5	ENSP00000498360.2	Q99836-1
MYD88	ENST00000421516.3	TSL:1	c.292C>T	p.Arg98Cys	missense	Exon 1 of 5	ENSP00000391753.3	Q99836-6
MYD88	ENST00000417037.8	TSL:1	c.292C>T	p.Arg98Cys	missense	Exon 1 of 4	ENSP00000401399.4	Q99836-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000411

AC:

AN:

243600

AF XY:

0.00000753

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000898

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.87e-7

AC:

AN:

1454574

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

723952

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44706

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26116

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

46390

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111828

Other (OTH)

AF:

0.00

AC:

AN:

60352

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.67

BayesDel_addAF

Pathogenic

0.37

BayesDel_noAF

Pathogenic

0.29

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.081

Eigen

Pathogenic

0.71

Eigen_PC

Uncertain

0.61

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.96

M_CAP

Pathogenic

0.55

MetaRNN

Pathogenic

0.99

MetaSVM

Pathogenic

0.82

MutationAssessor

Pathogenic

3.0

PhyloP100

3.8

PrimateAI

Uncertain

0.78

PROVEAN

Pathogenic

-7.3

REVEL

Pathogenic

0.83

Sift

Uncertain

0.0060

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.80

MutPred

0.92

Loss of disorder (P = 0.0642)

MVP

0.84

MPC

1.7

ClinPred

1.0

GERP RS

4.2

PromoterAI

-0.18

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.76

Mutation Taster

=8/92

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over