16-27341498-G-A

Position:

• chr16-27341498-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000418.4(IL4R):​c.71-623G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.121 in 152,126 control chromosomes in the GnomAD database, including 1,238 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.12 (1238 hom., cov: 32)
• Consequence: IL4R NM_000418.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.10

Genes affected

IL4R (HGNC:6015): (interleukin 4 receptor) This gene encodes the alpha chain of the interleukin-4 receptor, a type I transmembrane protein that can bind interleukin 4 and interleukin 13 to regulate IgE production. The encoded protein also can bind interleukin 4 to promote differentiation of Th2 cells. A soluble form of the encoded protein can be produced by proteolysis of the membrane-bound protein, and this soluble form can inhibit IL4-mediated cell proliferation and IL5 upregulation by T-cells. Allelic variations in this gene have been associated with atopy, a condition that can manifest itself as allergic rhinitis, sinusitus, asthma, or eczema. Polymorphisms in this gene are also associated with resistance to human immunodeficiency virus type-1 infection. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Apr 2012]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.97).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.142 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IL4R	NM_000418.4	c.71-623G>A		intron_variant		ENST00000395762.7	NP_000409.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IL4R	ENST00000395762.7	c.71-623G>A		intron_variant		1	NM_000418.4	ENSP00000379111	P1

Frequencies

GnomAD3 genomes AF: 0.121 AC: 18358 AN: 152008 Hom.: 1236 Cov.: 32

Gnomad AFR AF: 0.117

Gnomad AMI AF: 0.0252

Gnomad AMR AF: 0.0921

Gnomad ASJ AF: 0.149

Gnomad EAS AF: 0.00116

Gnomad SAS AF: 0.0846

Gnomad FIN AF: 0.0964

Gnomad MID AF: 0.165

Gnomad NFE AF: 0.144

Gnomad OTH AF: 0.132

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.121 AC: 18380 AN: 152126 Hom.: 1238 Cov.: 32 AF XY: 0.118 AC XY: 8739 AN XY: 74368

Gnomad4 AFR AF: 0.118

Gnomad4 AMR AF: 0.0919

Gnomad4 ASJ AF: 0.149

Gnomad4 EAS AF: 0.00116

Gnomad4 SAS AF: 0.0849

Gnomad4 FIN AF: 0.0964

Gnomad4 NFE AF: 0.144

Gnomad4 OTH AF: 0.130

Alfa AF: 0.139 Hom.: 1462

Bravo AF: 0.120

Asia WGS AF: 0.0500 AC: 174 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.97
CADD	Benign	0.18
DANN	Benign	0.39

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

Other links and lift over

dbSNP: rs3024537; hg19: chr16-27352819;