Genetic Variant TICAM1:p.His683Gln (chr19-4816329-G-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_182919.4(TICAM1):c.2049C>A(p.His683Gln) variant causes a missense 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. 13/21 in silico tools predict a benign 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. H683H) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Consequence

TICAM1
NM_182919.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.49

Publications

2 publications found

Variant links:

Genes affected

TICAM1 (HGNC:18348): (TIR domain containing adaptor molecule 1) This gene encodes an adaptor protein containing a Toll/interleukin-1 receptor (TIR) homology domain, which is an intracellular signaling domain that mediates protein-protein interactions between the Toll-like receptors (TLRs) and signal-transduction components. This protein is involved in native immunity against invading pathogens. It specifically interacts with toll-like receptor 3, but not with other TLRs, and this association mediates dsRNA induction of interferon-beta through activation of nuclear factor kappa-B, during an antiviral immune response. Mutations in this gene are associated with encephalopathy, acute, infection-induced. [provided by RefSeq, Jul 2020]

TICAM1 Gene-Disease associations (from GenCC):

herpes simplex encephalitis, susceptibility to, 4
Inheritance: AR, SD, AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

TICAM1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.36366665).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TICAM1	NM_182919.4 link	c.2049C>A	p.His683Gln	missense_variant	Exon 2 of 2	ENST00000248244.6	NP_891549.1	Q8IUC6
TICAM1	NM_001385678.1 link	c.2007C>A	p.His669Gln	missense_variant	Exon 3 of 3		NP_001372607.1
TICAM1	NM_001385679.1 link	c.1914C>A	p.His638Gln	missense_variant	Exon 2 of 2		NP_001372608.1
TICAM1	NM_001385680.1 link	c.1407C>A	p.His469Gln	missense_variant	Exon 3 of 3		NP_001372609.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TICAM1	ENST00000248244.6 link	c.2049C>A	p.His683Gln	missense_variant	Exon 2 of 2	1	NM_182919.4	ENSP00000248244.4		Q8IUC6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00

AC:

AN:

218460

AF XY:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.72

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.42

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.36

T;.

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.12

LIST_S2

Benign

0.57

T;T

M_CAP

Benign

0.030

MetaRNN

Benign

0.36

T;T

MetaSVM

Benign

-0.97

MutationAssessor

Benign

1.0

L;.

PhyloP100

-1.5

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-4.0

D;.

REVEL

Benign

0.16

Sift

Uncertain

0.0030

D;.

Sift4G

Uncertain

0.016

D;D

Polyphen

0.95

P;.

Vest4

0.69

MutPred

0.42

Gain of MoRF binding (P = 0.1211);.;

MVP

0.42

MPC

0.83

ClinPred

0.95

GERP RS

-5.5

Varity_R

0.34

Mutation Taster

=82/18

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over