Variant chr21-39771150-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001080444.2(IGSF5):c.653C>T(p.Thr218Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000357 in 1,454,816 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

IGSF5
NM_001080444.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.104

Variant links:

Genes affected

IGSF5 (HGNC:5952): (immunoglobulin superfamily member 5) Predicted to enable PDZ domain binding activity. Predicted to be involved in cell-cell adhesion. Predicted to be located in apical plasma membrane. Predicted to be integral component of membrane. Predicted to be active in bicellular tight junction and cell surface. [provided by Alliance of Genome Resources, Apr 2022]

IGSF5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.114860415).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IGSF5	NM_001080444.2 linkuse as main transcript	c.653C>T	p.Thr218Ile	missense_variant	4/9	ENST00000380588.5
IGSF5	XM_047440699.1 linkuse as main transcript	c.923C>T	p.Thr308Ile	missense_variant	5/10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IGSF5	ENST00000380588.5 linkuse as main transcript	c.653C>T	p.Thr218Ile	missense_variant	4/9	1	NM_001080444.2	P1
IGSF5	ENST00000479378.1 linkuse as main transcript	n.759C>T		non_coding_transcript_exon_variant	3/5	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000810

AC:

AN:

246976

Hom.:

AF XY:

0.0000150

AC XY:

AN XY:

133376

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:

0.0000178

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000357

AC:

AN:

1454816

Hom.:

Cov.:

AF XY:

0.0000346

AC XY:

AN XY:

722960

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:

0.0000460

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.00000756

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

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

Aug 12, 2021

The c.653C>T (p.T218I) alteration is located in exon 4 (coding exon 4) of the IGSF5 gene. This alteration results from a C to T substitution at nucleotide position 653, causing the threonine (T) at amino acid position 218 to be replaced by an isoleucine (I). 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

0.17

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.67

CADD

Benign

6.4

DANN

Uncertain

0.99

DEOGEN2

Benign

0.12

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.029

LIST_S2

Benign

0.59

M_CAP

Benign

0.016

MetaRNN

Benign

0.11

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

MutationTaster

Benign

1.0

PrimateAI

Benign

0.27

PROVEAN

Uncertain

-2.6

REVEL

Benign

0.051

Sift

Benign

0.17

Sift4G

Benign

0.071

Polyphen

0.84

Vest4

0.16

MutPred

0.50

Gain of methylation at K220 (P = 0.0633);

MVP

0.061

MPC

0.38

ClinPred

0.58

GERP RS

-7.3

Varity_R

0.058

gMVP

0.28

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