1-24121256-A-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_021258.4(IL22RA1):c.1274T>A(p.Leu425His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: IL22RA1 NM_021258.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.134

Genes affected

IL22RA1 (HGNC:13700): (interleukin 22 receptor subunit alpha 1) The protein encoded by this gene belongs to the class II cytokine receptor family, and has been shown to be a receptor for interleukin 22 (IL22). IL22 receptor is a protein complex that consists of this protein and interleukin 10 receptor, beta (IL10BR/CRFB4), a subunit also shared by the receptor complex for interleukin 10 (IL10). This gene and interleukin 28 receptor, alpha (IL28RA) form a cytokine receptor gene cluster in the chromosomal region 1p36. [provided by RefSeq, Jul 2008]

ACMG classification

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=0.060035676).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IL22RA1	NM_021258.4	c.1274T>A	p.Leu425His	missense_variant	7/7	ENST00000270800.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IL22RA1	ENST00000270800.2	c.1274T>A	p.Leu425His	missense_variant	7/7	1	NM_021258.4	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 23, 2024

The c.1274T>A (p.L425H) alteration is located in exon 7 (coding exon 7) of the IL22RA1 gene. This alteration results from a T to A substitution at nucleotide position 1274, causing the leucine (L) at amino acid position 425 to be replaced by a histidine (H). 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	0.089
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.63
Cadd	Benign	19
Dann	Uncertain	0.98
DEOGEN2	Benign	0.047	T
Eigen	Benign	-0.81
Eigen_PC	Benign	-0.82
FATHMM_MKL	Benign	0.026	N
LIST_S2	Benign	0.45	T
M_CAP	Benign	0.0060	T
MetaRNN	Benign	0.060	T
MetaSVM	Benign	-0.97	T
MutationAssessor	Uncertain	2.0	M
MutationTaster	Benign	1.0	N
PrimateAI	Benign	0.29	T
PROVEAN	Benign	-1.9	N
REVEL	Benign	0.067
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.036	D
Polyphen		0.025	B
Vest4		0.17
MutPred		0.079		Loss of stability (P = 0.0961);
MVP		0.15
MPC		0.15
ClinPred		0.35	T
GERP RS		2.2
Varity_R		0.18
gMVP		0.26

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-24447746;