1-206868458-C-A

Variant names:

• chr1-206868458-C-A
• NM_018724.4:c.454-29C>A

Variant summary

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

The NM_018724.4(IL20):​c.454-29C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000143 in 1,393,918 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: IL20 NM_018724.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.03

Genes affected

IL20 (HGNC:6002): (interleukin 20) The protein encoded by this gene is a cytokine structurally related to interleukin 10 (IL10). This cytokine has been shown to transduce its signal through signal transducer and activator of transcription 3 (STAT3) in keratinocytes. A specific receptor for this cytokine is found to be expressed in skin and upregulated dramatically in psoriatic skin, suggesting a role for this protein in epidermal function and psoriasis. [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 (BayesDel_noAF=-0.79).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IL20	NM_018724.4	c.454-29C>A		intron_variant	Intron 5 of 5	ENST00000367098.6	NP_061194.2
IL20	NM_001385166.1	c.454-29C>A		intron_variant	Intron 6 of 6		NP_001372095.1
IL20	NM_001385167.1	c.454-29C>A		intron_variant	Intron 7 of 7		NP_001372096.1
IL20	NM_001385165.1	c.379-29C>A		intron_variant	Intron 4 of 4		NP_001372094.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IL20	ENST00000367098.6	c.454-29C>A		intron_variant	Intron 5 of 5	1	NM_018724.4	ENSP00000356065.1
IL20	ENST00000367096.7	c.454-29C>A		intron_variant	Intron 4 of 4	1		ENSP00000356063.3
IL20	ENST00000391930.3	c.379-29C>A		intron_variant	Intron 3 of 3	1		ENSP00000375796.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000143 AC: 2 AN: 1393918 Hom.: 0 Cov.: 26 AF XY: 0.00000289 AC XY: 2 AN XY: 692830

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000280

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.32e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.79
CADD	Benign	12
DANN	Benign	0.62

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: chr1-207041803;