3-38138671-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_002468.5(MYD88):c.-30G>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000213 in 1,409,584 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: MYD88 NM_002468.5 5_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -1.26

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.07044205).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MYD88	NM_002468.5	c.-30G>T		5_prime_UTR_variant	1/5	ENST00000650905.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYD88	ENST00000650905.2	c.-30G>T		5_prime_UTR_variant	1/5		NM_002468.5	A1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000479 AC: 1 AN: 208704 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 115438

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000327

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000213 AC: 3 AN: 1409584 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 695324

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000740

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

Bravo AF: 0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Pyogenic bacterial infections due to MyD88 deficiency Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jul 05, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 1052586). This variant has not been reported in the literature in individuals affected with MYD88-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.003%). This sequence change replaces aspartic acid, which is acidic and polar, with tyrosine, which is neutral and polar, at codon 4 of the MYD88 protein (p.Asp4Tyr). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.34	T
BayesDel_noAF	Benign	-0.63
Cadd	Benign	5.0
Dann	Benign	0.54
DEOGEN2	Benign	0.019	T;.;.;.;.
Eigen	Benign	-1.6
Eigen_PC	Benign	-1.7
FATHMM_MKL	Benign	0.36	N
LIST_S2	Benign	0.80	T;T;T;T;T
M_CAP	Benign	0.0059	T
MetaRNN	Benign	0.070	T;T;T;T;T
MetaSVM	Benign	-0.97	T
MutationTaster	Benign	1.0	N;N;N;N;N
PrimateAI	Uncertain	0.63	T
PROVEAN	Benign	-0.53	N;.;N;.;.
REVEL	Benign	0.025
Sift	Pathogenic	0.0	D;.;D;.;.
Sift4G	Pathogenic	0.0	D;.;D;.;.
Vest4		0.19
MutPred		0.17		Loss of solvent accessibility (P = 0.0509);Loss of solvent accessibility (P = 0.0509);Loss of solvent accessibility (P = 0.0509);Loss of solvent accessibility (P = 0.0509);Loss of solvent accessibility (P = 0.0509);
MVP		0.082
MPC		1.5
ClinPred		0.28	T
GERP RS		-4.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0

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: rs541535441; hg19: chr3-38180162;