Genetic Variant CD300LB:p.Arg96Gln (chr17-74525831-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_174892.4(CD300LB):c.287G>A(p.Arg96Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000242 in 1,614,164 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000023 ( 1 hom. )

Consequence

CD300LB
NM_174892.4 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -4.75

Variant links:

Genes affected

CD300LB (HGNC:30811): (CD300 molecule like family member b) CD300LB is a nonclassical activating receptor of the immunoglobulin (Ig) superfamily expressed on myeloid cells (Martinez-Barriocanal and Sayos, 2006 [PubMed 16920917]).[supplied by OMIM, Mar 2008]

CD300LB links:

LOC107985074 (HGNC:):

LOC107985074 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.015176296).

BP6

Variant 17-74525831-C-T is Benign according to our data. Variant chr17-74525831-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3829519.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CD300LB	NM_174892.4 link	c.287G>A	p.Arg96Gln	missense_variant	Exon 2 of 4	ENST00000392621.6	NP_777552.3	A8K4G0
CD300LB	XM_005257027.4 link	c.398G>A	p.Arg133Gln	missense_variant	Exon 2 of 4		XP_005257084.1
LOC107985074	XR_007065902.1 link	n.352+4449C>T		intron_variant	Intron 1 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CD300LB	ENST00000392621.6 link	c.287G>A	p.Arg96Gln	missense_variant	Exon 2 of 4	1	NM_174892.4	ENSP00000376397.2		A8K4G0
CD300LB	ENST00000314401.3 link	c.287G>A	p.Arg96Gln	missense_variant	Exon 2 of 3	2		ENSP00000317337.4		J9JID3

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000159

AC:

AN:

251464

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135912

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000867

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:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000233

AC:

AN:

1461892

Hom.:

Cov.:

AF XY:

0.0000248

AC XY:

AN XY:

727248

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000358

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000227

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152272

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74480

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000529

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Dec 23, 2024

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.076

BayesDel_addAF

Benign

-0.54

BayesDel_noAF

Benign

-0.82

CADD

Benign

0.0010

DANN

Benign

0.54

DEOGEN2

Benign

0.11

T;.

Eigen

Benign

-2.1

Eigen_PC

Benign

-2.2

FATHMM_MKL

Benign

0.0028

LIST_S2

Benign

0.26

T;T

M_CAP

Benign

0.00079

MetaRNN

Benign

0.015

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.14

N;.

PrimateAI

Benign

0.20

PROVEAN

Benign

0.30

N;.

REVEL

Benign

0.046

Sift

Benign

0.89

T;.

Sift4G

Benign

0.65

T;T

Polyphen

0.025

B;.

Vest4

0.022

MutPred

0.47

Gain of loop (P = 0.2045);Gain of loop (P = 0.2045);

MVP

0.15

MPC

0.30

ClinPred

0.042

GERP RS

-10

Varity_R

0.016

gMVP

0.14

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