X-131273901-G-C

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_001555.5(IGSF1):ā€‹c.3906C>Gā€‹(p.Thr1302=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0003 in 1,208,539 control chromosomes in the GnomAD database, including 1 homozygotes. There are 98 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: š‘“ 0.0015 ( 0 hom., 53 hem., cov: 22)
Exomes š‘“: 0.00017 ( 1 hom. 45 hem. )

Consequence

IGSF1
NM_001555.5 synonymous

Scores

2

Clinical Significance

Benign no assertion criteria provided B:2

Conservation

PhyloP100: 0.362
Variant links:
Genes affected
IGSF1 (HGNC:5948): (immunoglobulin superfamily member 1) This gene encodes a member of the immunoglobulin-like domain-containing superfamily. Proteins in this superfamily contain varying numbers of immunoglobulin-like domains and are thought to participate in the regulation of interactions between cells. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jan 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.59).
BP6
Variant X-131273901-G-C is Benign according to our data. Variant chrX-131273901-G-C is described in ClinVar as [Benign]. Clinvar id is 1284299.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chrX-131273901-G-C is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=0.362 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00154 (172/111469) while in subpopulation AFR AF= 0.00536 (164/30614). AF 95% confidence interval is 0.00469. There are 0 homozygotes in gnomad4. There are 53 alleles in male gnomad4 subpopulation. Median coverage is 22. This position pass quality control queck.
BS2
High Hemizygotes in GnomAd4 at 53 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IGSF1NM_001555.5 linkuse as main transcriptc.3906C>G p.Thr1302= synonymous_variant 20/20 ENST00000361420.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IGSF1ENST00000361420.8 linkuse as main transcriptc.3906C>G p.Thr1302= synonymous_variant 20/201 NM_001555.5 P4Q8N6C5-1

Frequencies

GnomAD3 genomes
AF:
0.00154
AC:
172
AN:
111413
Hom.:
0
Cov.:
22
AF XY:
0.00158
AC XY:
53
AN XY:
33595
show subpopulations
Gnomad AFR
AF:
0.00537
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000566
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:
0.00
Gnomad OTH
AF:
0.00134
GnomAD3 exomes
AF:
0.000514
AC:
94
AN:
182883
Hom.:
1
AF XY:
0.000371
AC XY:
25
AN XY:
67357
show subpopulations
Gnomad AFR exome
AF:
0.00631
Gnomad AMR exome
AF:
0.000365
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000221
GnomAD4 exome
AF:
0.000173
AC:
190
AN:
1097070
Hom.:
1
Cov.:
30
AF XY:
0.000124
AC XY:
45
AN XY:
362452
show subpopulations
Gnomad4 AFR exome
AF:
0.00614
Gnomad4 AMR exome
AF:
0.000341
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:
0.00000119
Gnomad4 OTH exome
AF:
0.000326
GnomAD4 genome
AF:
0.00154
AC:
172
AN:
111469
Hom.:
0
Cov.:
22
AF XY:
0.00157
AC XY:
53
AN XY:
33661
show subpopulations
Gnomad4 AFR
AF:
0.00536
Gnomad4 AMR
AF:
0.000565
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00133
Alfa
AF:
0.000781
Hom.:
4
Bravo
AF:
0.00171

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.59
CADD
Benign
3.5
DANN
Benign
0.68
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs150776874; hg19: chrX-130407875; API