1-206773959-G-A

Position:

• chr1-206773959-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BS1 BS2

The NM_153758.5(IL19):​c.-149+2881G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0136 in 152,320 control chromosomes in the GnomAD database, including 45 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 0.014 (45 hom., cov: 32)
• Consequence: IL19 NM_153758.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.45

Genes affected

IL19 (HGNC:5990): (interleukin 19) The protein encoded by this gene is a cytokine that belongs to the IL10 cytokine subfamily. This cytokine is found to be preferentially expressed in monocytes. It can bind the IL20 receptor complex and lead to the activation of the signal transducer and activator of transcription 3 (STAT3). A similar cytokine in mouse is reported to up-regulate the expression of IL6 and TNF-alpha and induce apoptosis, which suggests a role of this cytokine in inflammatory responses. Alternatively spliced transcript variants encoding the distinct isoforms have been described. [provided by RefSeq, Jul 2008]

IL10 (HGNC:5962): (interleukin 10) The protein encoded by this gene is a cytokine produced primarily by monocytes and to a lesser extent by lymphocytes. This cytokine has pleiotropic effects in immunoregulation and inflammation. It down-regulates the expression of Th1 cytokines, MHC class II Ags, and costimulatory molecules on macrophages. It also enhances B cell survival, proliferation, and antibody production. This cytokine can block NF-kappa B activity, and is involved in the regulation of the JAK-STAT signaling pathway. Knockout studies in mice suggested the function of this cytokine as an essential immunoregulator in the intestinal tract. Mutations in this gene are associated with an increased susceptibility to HIV-1 infection and rheumatoid arthritis. [provided by RefSeq, May 2020]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0136 (2067/152320) while in subpopulation AFR AF= 0.0471 (1956/41562). AF 95% confidence interval is 0.0453. There are 45 homozygotes in gnomad4. There are 979 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd4 at 45 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IL19	NM_153758.5	c.-149+2881G>A		intron_variant		ENST00000659997.3	NP_715639.2
IL19	NM_001393490.1	c.-149+3129G>A		intron_variant			NP_001380419.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IL19	ENST00000659997.3	c.-149+2881G>A		intron_variant			NM_153758.5	ENSP00000499459	P1

Frequencies

GnomAD3 genomes AF: 0.0135 AC: 2052 AN: 152202 Hom.: 45 Cov.: 32

Gnomad AFR AF: 0.0468

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00510

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.0000882

Gnomad OTH AF: 0.0115

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

GnomAD4 genome AF: 0.0136 AC: 2067 AN: 152320 Hom.: 45 Cov.: 32 AF XY: 0.0131 AC XY: 979 AN XY: 74488

Gnomad4 AFR AF: 0.0471

Gnomad4 AMR AF: 0.00509

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000414

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000882

Gnomad4 OTH AF: 0.0113

Alfa AF: 0.00253 Hom.: 0

Bravo AF: 0.0159

Asia WGS AF: 0.00404 AC: 14 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	0.083
DANN	Benign	0.24

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs5743624; hg19: chr1-206947304;