1-24157206-G-A

Position:

chr1-24157206-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_170743.4(IFNLR1):c.1487C>T(p.Ala496Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,614,134 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A496G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

IFNLR1
NM_170743.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0130

Variant links:

Genes affected

IFNLR1 (HGNC:18584): (interferon lambda receptor 1) The protein encoded by this gene belongs to the class II cytokine receptor family. This protein forms a receptor complex with interleukine 10 receptor, beta (IL10RB). The receptor complex has been shown to interact with three closely related cytokines, including interleukin 28A (IL28A), interleukin 28B (IL28B), and interleukin 29 (IL29). The expression of all three cytokines can be induced by viral infection. The cells overexpressing this protein have been found to have enhanced responses to IL28A and IL29, but decreased response to IL28B. Three alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Jul 2008]

IFNLR1 links:

LOC124903879 (HGNC:):

LOC124903879 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.043283314).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IFNLR1	NM_170743.4 linkuse as main transcript	c.1487C>T	p.Ala496Val	missense_variant	7/7	ENST00000327535.6	NP_734464.1	Q8IU57-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
IFNLR1	ENST00000327535.6 linkuse as main transcript	c.1487C>T	p.Ala496Val	missense_variant	7/7	1	NM_170743.4	ENSP00000327824.1	Q8IU57-1
IFNLR1	ENST00000374421.7 linkuse as main transcript	c.1400C>T	p.Ala467Val	missense_variant	7/7	1		ENSP00000363542.3	Q8IU57-2
IFNLR1	ENST00000327575 linkuse as main transcript	c.*621C>T		3_prime_UTR_variant	6/6	1		ENSP00000328994.2	Q8IU57-4

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251326

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135834

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.00

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:

0.0000137

AC:

AN:

1461872

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

727234

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000809

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152262

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74452

show subpopulations

Gnomad4 AFR

AF:

0.0000963

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000132

Hom.:

Bravo

AF:

0.0000642

ExAC

AF:

0.0000247

AC:

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 13, 2021

The c.1487C>T (p.A496V) alteration is located in exon 7 (coding exon 7) of the IFNLR1 gene. This alteration results from a C to T substitution at nucleotide position 1487, causing the alanine (A) at amino acid position 496 to be replaced by a valine (V). 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

0.091

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.55

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.12

T;.

Eigen

Benign

-0.83

Eigen_PC

Benign

-0.93

FATHMM_MKL

Benign

0.024

LIST_S2

Benign

0.60

T;T

M_CAP

Benign

0.0036

MetaRNN

Benign

0.043

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

L;.

PrimateAI

Benign

0.24

PROVEAN

Benign

-1.1

N;N

REVEL

Benign

0.11

Sift

Benign

0.099

T;T

Sift4G

Benign

0.48

T;T

Polyphen

0.52

P;P

Vest4

0.057

MVP

0.088

MPC

0.28

ClinPred

0.16

GERP RS

-0.99

Varity_R

0.058

gMVP

0.083

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