rs55972840

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_012092.4(ICOS):ā€‹c.150A>Gā€‹(p.Gln50=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00388 in 1,613,738 control chromosomes in the GnomAD database, including 223 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.021 ( 123 hom., cov: 32)
Exomes š‘“: 0.0021 ( 100 hom. )

Consequence

ICOS
NM_012092.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.0390
Variant links:
Genes affected
ICOS (HGNC:5351): (inducible T cell costimulator) The protein encoded by this gene belongs to the CD28 and CTLA-4 cell-surface receptor family. It forms homodimers and plays an important role in cell-cell signaling, immune responses, and regulation of cell proliferation. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.51).
BP6
Variant 2-203955727-A-G is Benign according to our data. Variant chr2-203955727-A-G is described in ClinVar as [Benign]. Clinvar id is 333733.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.039 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0694 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ICOSNM_012092.4 linkuse as main transcriptc.150A>G p.Gln50= synonymous_variant 2/5 ENST00000316386.11
ICOSXM_047444022.1 linkuse as main transcriptc.153A>G p.Gln51= synonymous_variant 2/5
ICOSXR_007073112.1 linkuse as main transcriptn.202A>G non_coding_transcript_exon_variant 2/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ICOSENST00000316386.11 linkuse as main transcriptc.150A>G p.Gln50= synonymous_variant 2/51 NM_012092.4 P2Q9Y6W8-1
ICOSENST00000435193.1 linkuse as main transcriptc.150A>G p.Gln50= synonymous_variant 2/41 A2Q9Y6W8-2

Frequencies

GnomAD3 genomes
AF:
0.0206
AC:
3131
AN:
152134
Hom.:
120
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0715
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00773
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000828
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.0168
GnomAD3 exomes
AF:
0.00530
AC:
1330
AN:
251020
Hom.:
45
AF XY:
0.00379
AC XY:
514
AN XY:
135664
show subpopulations
Gnomad AFR exome
AF:
0.0732
Gnomad AMR exome
AF:
0.00313
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000141
Gnomad OTH exome
AF:
0.00196
GnomAD4 exome
AF:
0.00213
AC:
3119
AN:
1461486
Hom.:
100
Cov.:
31
AF XY:
0.00186
AC XY:
1350
AN XY:
727048
show subpopulations
Gnomad4 AFR exome
AF:
0.0774
Gnomad4 AMR exome
AF:
0.00389
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000255
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000684
Gnomad4 OTH exome
AF:
0.00416
GnomAD4 genome
AF:
0.0206
AC:
3142
AN:
152252
Hom.:
123
Cov.:
32
AF XY:
0.0200
AC XY:
1487
AN XY:
74436
show subpopulations
Gnomad4 AFR
AF:
0.0716
Gnomad4 AMR
AF:
0.00772
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000829
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.0166
Alfa
AF:
0.00950
Hom.:
28
Bravo
AF:
0.0233
Asia WGS
AF:
0.00318
AC:
11
AN:
3478
EpiCase
AF:
0.000273
EpiControl
AF:
0.000296

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Immunodeficiency, common variable, 1 Benign:3
Benign, criteria provided, single submitterclinical testingInvitaeJan 29, 2024- -
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesSep 21, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.51
CADD
Benign
6.9
DANN
Benign
0.53

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

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

Other links and lift over

dbSNP: rs55972840; hg19: chr2-204820450; API