21-39779210-C-T

Variant summary

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

The NM_001080444.2(IGSF5):​c.839C>T​(p.Thr280Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000235 in 1,613,984 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

IGSF5
NM_001080444.2 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.172
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]

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=0.20562577).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IGSF5NM_001080444.2 linkuse as main transcriptc.839C>T p.Thr280Met missense_variant 5/9 ENST00000380588.5
LOC107985500XR_001755057.1 linkuse as main transcriptn.236G>A non_coding_transcript_exon_variant 3/3
IGSF5XM_047440699.1 linkuse as main transcriptc.1109C>T p.Thr370Met missense_variant 6/10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IGSF5ENST00000380588.5 linkuse as main transcriptc.839C>T p.Thr280Met missense_variant 5/91 NM_001080444.2 P1
IGSF5ENST00000479378.1 linkuse as main transcriptn.945C>T non_coding_transcript_exon_variant 4/55

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152146
Hom.:
0
Cov.:
33
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:
0.0000119
AC:
3
AN:
251066
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135682
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000253
AC:
37
AN:
1461838
Hom.:
0
Cov.:
31
AF XY:
0.0000220
AC XY:
16
AN XY:
727216
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000252
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152146
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74330
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:
0.0000113
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 submitterclinical testingAmbry GeneticsApr 13, 2022The c.839C>T (p.T280M) alteration is located in exon 5 (coding exon 5) of the IGSF5 gene. This alteration results from a C to T substitution at nucleotide position 839, causing the threonine (T) at amino acid position 280 to be replaced by a methionine (M). 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
0.095
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
15
DANN
Uncertain
1.0
DEOGEN2
Benign
0.052
T
Eigen
Benign
-0.54
Eigen_PC
Benign
-0.79
FATHMM_MKL
Benign
0.022
N
LIST_S2
Benign
0.52
T
M_CAP
Benign
0.0045
T
MetaRNN
Benign
0.21
T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
1.1
L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.34
T
PROVEAN
Benign
0.41
N
REVEL
Benign
0.033
Sift
Benign
0.032
D
Sift4G
Uncertain
0.045
D
Polyphen
1.0
D
Vest4
0.28
MutPred
0.32
Gain of sheet (P = 0.0043);
MVP
0.14
MPC
0.41
ClinPred
0.55
D
GERP RS
0.23
Varity_R
0.045
gMVP
0.11

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: rs749337072; hg19: chr21-41151137; COSMIC: COSV101012063; API