Variant X-78273731-T-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The NM_006639.4(CYSLTR1):c.16A>T(p.Asn6Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000335 in 1,195,044 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.0000018 ( 0 hom. 0 hem. )

Consequence

CYSLTR1
NM_006639.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.52

Variant links:

Genes affected

CYSLTR1 (HGNC:17451): (cysteinyl leukotriene receptor 1) This gene encodes a member of the G-protein coupled receptor 1 family. The encoded protein is a receptor for cysteinyl leukotrienes, and is involved in mediating bronchoconstriction via activation of a phosphatidylinositol-calcium second messenger system. Activation of the encoded receptor results in contraction and proliferation of bronchial smooth muscle cells, eosinophil migration, and damage to the mucus layer in the lung. Upregulation of this gene is associated with asthma and dysregulation may also be implicated in cancer. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]

CYSLTR1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1

In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity CLTR1_HUMAN

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
CYSLTR1	NM_006639.4 linkuse as main transcript	c.16A>T	p.Asn6Tyr	missense_variant	3/3	ENST00000373304.4
CYSLTR1	NM_001282186.2 linkuse as main transcript	c.16A>T	p.Asn6Tyr	missense_variant	2/2
CYSLTR1	NM_001282187.2 linkuse as main transcript	c.16A>T	p.Asn6Tyr	missense_variant	4/4
CYSLTR1	NM_001282188.2 linkuse as main transcript	c.16A>T	p.Asn6Tyr	missense_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CYSLTR1	ENST00000373304.4 linkuse as main transcript	c.16A>T	p.Asn6Tyr	missense_variant	3/3	1	NM_006639.4	P1
CYSLTR1	ENST00000614798.1 linkuse as main transcript	c.16A>T	p.Asn6Tyr	missense_variant	2/2	1		P1

Frequencies

GnomAD3 genomes

AF:

0.0000178

AC:

AN:

112139

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34299

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000190

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000116

AC:

AN:

172960

Hom.:

AF XY:

0.00

AC XY:

AN XY:

59460

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000772

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:

0.00000185

AC:

AN:

1082905

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

351643

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000585

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

AF:

0.0000178

AC:

AN:

112139

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34299

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000190

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 14, 2022

The c.16A>T (p.N6Y) alteration is located in exon 3 (coding exon 1) of the CYSLTR1 gene. This alteration results from a A to T substitution at nucleotide position 16, causing the asparagine (N) at amino acid position 6 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.30

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.52

D;D

FATHMM_MKL

Uncertain

0.85

M_CAP

Benign

0.013

MetaRNN

Uncertain

0.43

T;T

MetaSVM

Benign

-0.69

MutationAssessor

Benign

0.69

N;N

MutationTaster

Benign

0.74

PrimateAI

Benign

0.48

PROVEAN

Uncertain

-3.2

D;.

REVEL

Uncertain

0.33

Sift

Uncertain

0.0090

D;.

Sift4G

Uncertain

0.0080

D;D

Polyphen

0.99

D;D

Vest4

0.18

MutPred

0.31

Loss of disorder (P = 0.0514);Loss of disorder (P = 0.0514);

MVP

0.89

MPC

0.044

ClinPred

0.57

GERP RS

4.5

Varity_R

0.14

gMVP

0.43

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

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