chr16-27353485-G-A

Position:

• chr16-27353485-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.670+789G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.32 in 151,914 control chromosomes in the GnomAD database, including 8,302 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 0.32 (8302 hom., cov: 32)
• Consequence: IL4R NM_000418.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.401

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=-0.91).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.451 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IL4R	NM_000418.4	c.670+789G>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.670+789G>A		intron_variant		1	NM_000418.4	ENSP00000379111.2

Frequencies

GnomAD3 genomes AF: 0.320 AC: 48608 AN: 151794 Hom.: 8291 Cov.: 32

Gnomad AFR AF: 0.206

Gnomad AMI AF: 0.556

Gnomad AMR AF: 0.384

Gnomad ASJ AF: 0.270

Gnomad EAS AF: 0.466

Gnomad SAS AF: 0.463

Gnomad FIN AF: 0.331

Gnomad MID AF: 0.294

Gnomad NFE AF: 0.352

Gnomad OTH AF: 0.320

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

GnomAD4 genome AF: 0.320 AC: 48649 AN: 151914 Hom.: 8302 Cov.: 32 AF XY: 0.324 AC XY: 24042 AN XY: 74266

Gnomad4 AFR AF: 0.206

Gnomad4 AMR AF: 0.386

Gnomad4 ASJ AF: 0.270

Gnomad4 EAS AF: 0.466

Gnomad4 SAS AF: 0.464

Gnomad4 FIN AF: 0.331

Gnomad4 NFE AF: 0.352

Gnomad4 OTH AF: 0.323

Alfa AF: 0.342 Hom.: 12027

Bravo AF: 0.319

Asia WGS AF: 0.463 AC: 1608 AN: 3472

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	2.8
DANN	Benign	0.44

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

Other links and lift over

dbSNP: rs3024619; hg19: chr16-27364806;