Genetic Variant NM_018965.4:c.*169G>A (chr6-41158595-C-T) – ACMG Classification: Benign (-7 pts)

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_018965.4(TREM2):c.*169G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0001 in 1,558,696 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 Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00042 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000065 ( 0 hom. )

Consequence

TREM2
NM_018965.4 3_prime_UTR

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -2.43

Variant links:

Genes affected

TREM2 (HGNC:17761): (triggering receptor expressed on myeloid cells 2) This gene encodes a membrane protein that forms a receptor signaling complex with the TYRO protein tyrosine kinase binding protein. The encoded protein functions in immune response and may be involved in chronic inflammation by triggering the production of constitutive inflammatory cytokines. Defects in this gene are a cause of polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy (PLOSL). Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Nov 2012]

TREM2 links:

ENSG00000290034 (HGNC:):

ENSG00000290034 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.89).

BP6

Variant 6-41158595-C-T is Benign according to our data. Variant chr6-41158595-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3034609.Status of the report is no_assertion_criteria_provided, 0 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00042 (64/152294) while in subpopulation AFR AF= 0.00149 (62/41562). AF 95% confidence interval is 0.00119. There are 0 homozygotes in gnomad4. There are 28 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TREM2	NM_018965.4 link	c.*169G>A		3_prime_UTR_variant	Exon 5 of 5	ENST00000373113.8	NP_061838.1	Q9NZC2-1Q5TCX1
TREM2	NM_001271821.2 link	c.*8G>A		3_prime_UTR_variant	Exon 4 of 4		NP_001258750.1	Q9NZC2-2

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
TREM2	ENST00000373113 link	c.*169G>A	3_prime_UTR_variant	Exon 5 of 5	1	NM_018965.4	ENSP00000362205.3	Q9NZC2-1
TREM2	ENST00000338469 link	c.*8G>A	3_prime_UTR_variant	Exon 4 of 4	1		ENSP00000342651.4	Q9NZC2-2
TREM2	ENST00000373122 link	c.*233G>A	3_prime_UTR_variant	Exon 5 of 5	1		ENSP00000362214.4	Q9NZC2-3
ENSG00000290034	ENST00000702590.1 link	n.364+3032C>T	intron_variant	Intron 2 of 2

Frequencies

GnomAD3 genomes

AF:

0.000421

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00150

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000146

AC:

AN:

170866

Hom.:

AF XY:

0.000167

AC XY:

AN XY:

90054

show subpopulations

Gnomad AFR exome

AF:

0.00101

Gnomad AMR exome

AF:

0.0000789

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000539

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000654

AC:

AN:

1406402

Hom.:

Cov.:

AF XY:

0.0000792

AC XY:

AN XY:

694222

show subpopulations

Gnomad4 AFR exome

AF:

0.00153

Gnomad4 AMR exome

AF:

0.000111

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000261

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000554

Gnomad4 OTH exome

AF:

0.000206

GnomAD4 genome

AF:

0.000420

AC:

AN:

152294

Hom.:

Cov.:

AF XY:

0.000376

AC XY:

AN XY:

74470

show subpopulations

Gnomad4 AFR

AF:

0.00149

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000304

Hom.:

Bravo

AF:

0.000510

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

TREM2-related disorder

Benign:1

Jul 31, 2019

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

0.77

DANN

Benign

0.35

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