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GeneBe

5-55896341-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_139017.7(IL31RA):c.773-9T>C variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00246 in 1,605,150 control chromosomes in the GnomAD database, including 85 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.013 ( 45 hom., cov: 31)
Exomes 𝑓: 0.0014 ( 40 hom. )

Consequence

IL31RA
NM_139017.7 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.001341
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.90
Variant links:
Genes affected
IL31RA (HGNC:18969): (interleukin 31 receptor A) The protein encoded by this gene belongs to the type I cytokine receptor family. This receptor, with homology to gp130, is expressed on monocytes, and is involved in IL-31 signaling via activation of STAT-3 and STAT-5. It functions either as a monomer, or as part of a receptor complex with oncostatin M receptor (OSMR). Several alternatively spliced transcript variants encoding different isoforms have been noted for this gene.[provided by RefSeq, Jun 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.54).
BP6
Variant 5-55896341-T-C is Benign according to our data. Variant chr5-55896341-T-C is described in ClinVar as [Benign]. Clinvar id is 785124.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0127 (1931/152178) while in subpopulation AFR AF= 0.0438 (1817/41504). AF 95% confidence interval is 0.0421. There are 45 homozygotes in gnomad4. There are 889 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High AC in GnomAd at 1918 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IL31RANM_139017.7 linkuse as main transcriptc.773-9T>C splice_polypyrimidine_tract_variant, intron_variant ENST00000652347.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IL31RAENST00000652347.2 linkuse as main transcriptc.773-9T>C splice_polypyrimidine_tract_variant, intron_variant NM_139017.7 A2Q8NI17-2

Frequencies

GnomAD3 genomes
AF:
0.0126
AC:
1918
AN:
152062
Hom.:
45
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0436
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00458
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000265
Gnomad OTH
AF:
0.0124
GnomAD3 exomes
AF:
0.00318
AC:
799
AN:
251480
Hom.:
10
AF XY:
0.00227
AC XY:
309
AN XY:
135914
show subpopulations
Gnomad AFR exome
AF:
0.0421
Gnomad AMR exome
AF:
0.00243
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000158
Gnomad OTH exome
AF:
0.00179
GnomAD4 exome
AF:
0.00139
AC:
2017
AN:
1452972
Hom.:
40
Cov.:
29
AF XY:
0.00119
AC XY:
858
AN XY:
723492
show subpopulations
Gnomad4 AFR exome
AF:
0.0458
Gnomad4 AMR exome
AF:
0.00291
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000197
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000159
Gnomad4 OTH exome
AF:
0.00275
GnomAD4 genome
AF:
0.0127
AC:
1931
AN:
152178
Hom.:
45
Cov.:
31
AF XY:
0.0119
AC XY:
889
AN XY:
74420
show subpopulations
Gnomad4 AFR
AF:
0.0438
Gnomad4 AMR
AF:
0.00458
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000265
Gnomad4 OTH
AF:
0.0123
Alfa
AF:
0.00698
Hom.:
16
Bravo
AF:
0.0147
Asia WGS
AF:
0.00318
AC:
12
AN:
3478
EpiCase
AF:
0.000327
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 31, 2019- -
IL31RA-related disorder Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJan 02, 2020This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.54
Cadd
Benign
12
Dann
Benign
0.84

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0013
dbscSNV1_RF
Benign
0.026
SpliceAI score (max)
0.060
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs73118479; hg19: chr5-55192169; API