chr2-203955620-C-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_012092.4(ICOS):​c.59-16C>A 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 0.000000693 in 1,443,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

ICOS
NM_012092.4 splice_polypyrimidine_tract, intron

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.167
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]

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ACMG classification

Classification made for transcript

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=-0.43).
BP6
Variant 2-203955620-C-A is Benign according to our data. Variant chr2-203955620-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 1549428.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ICOSNM_012092.4 linkuse as main transcriptc.59-16C>A splice_polypyrimidine_tract_variant, intron_variant ENST00000316386.11 NP_036224.1
ICOSXM_047444022.1 linkuse as main transcriptc.62-16C>A splice_polypyrimidine_tract_variant, intron_variant XP_047299978.1
ICOSXR_007073112.1 linkuse as main transcriptn.111-16C>A splice_polypyrimidine_tract_variant, intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ICOSENST00000316386.11 linkuse as main transcriptc.59-16C>A splice_polypyrimidine_tract_variant, intron_variant 1 NM_012092.4 ENSP00000319476 P2Q9Y6W8-1
ICOSENST00000435193.1 linkuse as main transcriptc.59-16C>A splice_polypyrimidine_tract_variant, intron_variant 1 ENSP00000415951 A2Q9Y6W8-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.93e-7
AC:
1
AN:
1443190
Hom.:
0
Cov.:
27
AF XY:
0.00
AC XY:
0
AN XY:
719396
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.13e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Immunodeficiency, common variable, 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMay 08, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.43
CADD
Benign
7.3
DANN
Benign
0.73

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: chr2-204820343; API