16-27423212-G-C

Position:

• chr16-27423212-G-C

Variant summary

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

The NM_181078.3(IL21R):​c.-16-6844G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.361 in 150,298 control chromosomes in the GnomAD database, including 10,042 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 0.36 (10042 hom., cov: 31)
• Consequence: IL21R NM_181078.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0100

Genes affected

IL21R (HGNC:6006): (interleukin 21 receptor) The protein encoded by this gene is a cytokine receptor for interleukin 21 (IL21). It belongs to the type I cytokine receptors, and has been shown to form a heterodimeric receptor complex with the common gamma-chain, a receptor subunit also shared by the receptors for interleukin 2, 4, 7, 9, and 15. This receptor transduces the growth promoting signal of IL21, and is important for the proliferation and differentiation of T cells, B cells, and natural killer (NK) cells. The ligand binding of this receptor leads to the activation of multiple downstream signaling molecules, including JAK1, JAK3, STAT1, and STAT3. Knockout studies of a similar gene in mouse suggest a role for this gene in regulating immunoglobulin production. Three alternatively spliced transcript variants have been described. [provided by RefSeq, Jul 2010]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.92).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.492 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IL21R	NM_181078.3	c.-16-6844G>C		intron_variant		ENST00000337929.8	NP_851564.1
IL21R	NM_181079.5	c.51-6844G>C		intron_variant			NP_851565.4
IL21R	XM_011545857.4	c.51-6844G>C		intron_variant			XP_011544159.1
IL21R	XM_017023257.3	c.-16-6844G>C		intron_variant			XP_016878746.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IL21R	ENST00000337929.8	c.-16-6844G>C		intron_variant		1	NM_181078.3	ENSP00000338010	P1
IL21R	ENST00000564089.5	c.-16-6844G>C		intron_variant		5		ENSP00000456707	P1

Frequencies

GnomAD3 genomes AF: 0.361 AC: 54153 AN: 150192 Hom.: 10035 Cov.: 31

Gnomad AFR AF: 0.399

Gnomad AMI AF: 0.305

Gnomad AMR AF: 0.379

Gnomad ASJ AF: 0.275

Gnomad EAS AF: 0.509

Gnomad SAS AF: 0.499

Gnomad FIN AF: 0.353

Gnomad MID AF: 0.354

Gnomad NFE AF: 0.319

Gnomad OTH AF: 0.350

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

GnomAD4 genome AF: 0.361 AC: 54191 AN: 150298 Hom.: 10042 Cov.: 31 AF XY: 0.367 AC XY: 26949 AN XY: 73468

Gnomad4 AFR AF: 0.399

Gnomad4 AMR AF: 0.379

Gnomad4 ASJ AF: 0.275

Gnomad4 EAS AF: 0.508

Gnomad4 SAS AF: 0.497

Gnomad4 FIN AF: 0.353

Gnomad4 NFE AF: 0.319

Gnomad4 OTH AF: 0.353

Alfa AF: 0.323 Hom.: 1041

Bravo AF: 0.357

Asia WGS AF: 0.486 AC: 1692 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.92
CADD	Benign	1.6
DANN	Benign	0.37

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: rs7199138; hg19: chr16-27434533;