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GeneBe

21-39765835-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001080444.2(IGSF5):​c.401C>T​(p.Ala134Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 1,612,560 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

IGSF5
NM_001080444.2 missense

Scores

3
7
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.13
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 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.814

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IGSF5NM_001080444.2 linkuse as main transcriptc.401C>T p.Ala134Val missense_variant 3/9 ENST00000380588.5
IGSF5XM_047440699.1 linkuse as main transcriptc.671C>T p.Ala224Val missense_variant 4/10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IGSF5ENST00000380588.5 linkuse as main transcriptc.401C>T p.Ala134Val missense_variant 3/91 NM_001080444.2 P1
IGSF5ENST00000479378.1 linkuse as main transcriptn.507C>T non_coding_transcript_exon_variant 2/55

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152196
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000403
AC:
1
AN:
247948
Hom.:
0
AF XY:
0.00000746
AC XY:
1
AN XY:
134128
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:
0.00000901
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1460364
Hom.:
0
Cov.:
34
AF XY:
0.0000151
AC XY:
11
AN XY:
726178
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:
0.0000225
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152196
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000565
Hom.:
0
Bravo
AF:
0.0000113

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 GeneticsNov 15, 2021The c.401C>T (p.A134V) alteration is located in exon 3 (coding exon 3) of the IGSF5 gene. This alteration results from a C to T substitution at nucleotide position 401, causing the alanine (A) at amino acid position 134 to be replaced by a valine (V). 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
Pathogenic
0.85
BayesDel_addAF
Uncertain
0.10
D
BayesDel_noAF
Benign
-0.090
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.37
T
Eigen
Benign
0.13
Eigen_PC
Benign
-0.080
FATHMM_MKL
Uncertain
0.79
D
LIST_S2
Benign
0.51
T
M_CAP
Benign
0.083
D
MetaRNN
Pathogenic
0.81
D
MetaSVM
Benign
-0.41
T
MutationAssessor
Uncertain
2.1
M
MutationTaster
Benign
0.92
N
PrimateAI
Benign
0.39
T
PROVEAN
Uncertain
-3.7
D
REVEL
Uncertain
0.41
Sift
Uncertain
0.0030
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.78
MutPred
0.53
Loss of sheet (P = 0.1158);
MVP
0.47
MPC
0.44
ClinPred
0.98
D
GERP RS
2.9
Varity_R
0.46
gMVP
0.52

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs1217761342; hg19: chr21-41137762; API