Variant chr19-44627537-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001205280.2(IGSF23):c.509T>C(p.Ile170Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000194 in 1,550,384 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

IGSF23
NM_001205280.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.114

Variant links:

Genes affected

IGSF23 (HGNC:40040): (immunoglobulin superfamily member 23) This gene encodes a protein that has one immunoglobulin (Ig) domain and is a member of the immunoglobulin superfamily. Proteins in this superfamily are usually found on or in cell membranes and act as receptors in immune response pathways. [provided by RefSeq, Nov 2011]

IGSF23 links:

Genome browser will be placed here

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 (MetaRNN=0.06304023).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IGSF23	NM_001205280.2 linkuse as main transcript	c.509T>C	p.Ile170Thr	missense_variant	3/5	ENST00000402988.6	NP_001192209.1	A1L1A6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
IGSF23	ENST00000402988.6 linkuse as main transcript	c.509T>C	p.Ile170Thr	missense_variant	3/5	3	NM_001205280.2	ENSP00000385592.1	A1L1A6
IGSF23	ENST00000441389.1 linkuse as main transcript	c.344T>C	p.Ile115Thr	missense_variant	2/3	1		ENSP00000407344.1	H0Y6S3
IGSF23	ENST00000428245.5 linkuse as main transcript	c.566T>C	p.Ile189Thr	missense_variant	4/6	5		ENSP00000410629.1	H0Y773

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000677

AC:

AN:

147800

Hom.:

AF XY:

0.0000125

AC XY:

AN XY:

79702

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000407

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:

0.00

GnomAD4 exome

AF:

0.00000143

AC:

AN:

1398224

Hom.:

Cov.:

AF XY:

0.00000145

AC XY:

AN XY:

689628

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000560

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152160

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74328

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 14, 2024

The c.509T>C (p.I170T) alteration is located in exon 3 (coding exon 3) of the IGSF23 gene. This alteration results from a T to C substitution at nucleotide position 509, causing the isoleucine (I) at amino acid position 170 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.092

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.031

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.018

LIST_S2

Benign

0.44

M_CAP

Benign

0.0034

MetaRNN

Benign

0.063

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

PrimateAI

Benign

0.38

PROVEAN

Benign

-0.88

REVEL

Benign

0.016

Sift

Uncertain

0.0050

Sift4G

Uncertain

0.0080

Polyphen

0.064

Vest4

0.21

MutPred

0.29

Loss of helix (P = 0.0237);

MVP

0.076

ClinPred

0.060

GERP RS

0.83

Varity_R

0.053

gMVP

0.17

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over