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GeneBe

X-131274145-A-C

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP7BS1_Supporting

The NM_001555.5(IGSF1):c.3813T>G(p.Val1271=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000256 in 1,209,423 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 10 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 0.000026 ( 0 hom. 9 hem. )

Consequence

IGSF1
NM_001555.5 synonymous

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0250
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 Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.6).
BP7
Synonymous conserved (PhyloP=0.025 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4_exome allele frequency = 0.0000264 (29/1097907) while in subpopulation NFE AF= 0.0000333 (28/841830). AF 95% confidence interval is 0.0000231. There are 0 homozygotes in gnomad4_exome. There are 9 alleles in male gnomad4_exome subpopulation. Median coverage is 30. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IGSF1NM_001555.5 linkuse as main transcriptc.3813T>G p.Val1271= synonymous_variant 19/20 ENST00000361420.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IGSF1ENST00000361420.8 linkuse as main transcriptc.3813T>G p.Val1271= synonymous_variant 19/201 NM_001555.5 P4Q8N6C5-1

Frequencies

GnomAD3 genomes
AF:
0.0000179
AC:
2
AN:
111516
Hom.:
0
Cov.:
23
AF XY:
0.0000297
AC XY:
1
AN XY:
33698
show subpopulations
Gnomad AFR
AF:
0.0000327
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000164
AC:
3
AN:
183211
Hom.:
0
AF XY:
0.0000148
AC XY:
1
AN XY:
67685
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.0000367
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000264
AC:
29
AN:
1097907
Hom.:
0
Cov.:
30
AF XY:
0.0000248
AC XY:
9
AN XY:
363265
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000284
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:
0.0000333
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000179
AC:
2
AN:
111516
Hom.:
0
Cov.:
23
AF XY:
0.0000297
AC XY:
1
AN XY:
33698
show subpopulations
Gnomad4 AFR
AF:
0.0000327
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000188
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

X-linked central congenital hypothyroidism with late-onset testicular enlargement Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityApr 01, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.60
Cadd
Benign
2.7
Dann
Benign
0.72
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs771084558; hg19: chrX-130408119; API