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GeneBe

16-21652571-C-T

Variant summary

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

The NM_005849.4(IGSF6):​c.28G>A​(p.Ala10Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000261 in 1,610,434 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

IGSF6
NM_005849.4 missense

Scores

18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -3.78
Variant links:
Genes affected
IGSF6 (HGNC:5953): (immunoglobulin superfamily member 6) Predicted to enable transmembrane signaling receptor activity. Predicted to be involved in cell surface receptor signaling pathway and immune response. Predicted to be integral component of plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]
METTL9 (HGNC:24586): (methyltransferase 9, His-X-His N1(pi)-histidine) Enables protein-L-histidine N-pros-methyltransferase activity. Predicted to be involved in methylation. Is active in endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

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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=0.035396993).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IGSF6NM_005849.4 linkuse as main transcriptc.28G>A p.Ala10Thr missense_variant 1/6 ENST00000268389.6
METTL9NM_016025.5 linkuse as main transcriptc.752-2656C>T intron_variant ENST00000358154.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IGSF6ENST00000268389.6 linkuse as main transcriptc.28G>A p.Ala10Thr missense_variant 1/61 NM_005849.4 P1
METTL9ENST00000358154.8 linkuse as main transcriptc.752-2656C>T intron_variant 1 NM_016025.5 P3Q9H1A3-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152138
Hom.:
0
Cov.:
32
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:
0.000620
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000483
AC:
12
AN:
248704
Hom.:
0
AF XY:
0.0000372
AC XY:
5
AN XY:
134452
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:
0.000233
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000441
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1458296
Hom.:
0
Cov.:
30
AF XY:
0.0000303
AC XY:
22
AN XY:
725378
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:
0.000246
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.0000498
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152138
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74316
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:
0.000620
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000658
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000659
AC:
8

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 GeneticsJul 30, 2023The c.28G>A (p.A10T) alteration is located in exon 1 (coding exon 1) of the IGSF6 gene. This alteration results from a G to A substitution at nucleotide position 28, causing the alanine (A) at amino acid position 10 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
0.085
BayesDel_addAF
Benign
-0.55
T
BayesDel_noAF
Benign
-0.73
CADD
Benign
0.0040
DANN
Benign
0.86
DEOGEN2
Benign
0.024
T;T
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.0034
N
M_CAP
Benign
0.0063
T
MetaRNN
Benign
0.035
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.55
N;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.24
T
PROVEAN
Benign
-0.13
N;N
REVEL
Benign
0.093
Sift
Benign
0.57
T;T
Sift4G
Benign
0.60
T;T
Polyphen
0.019
B;.
Vest4
0.054
MVP
0.014
MPC
0.15
ClinPred
0.028
T
GERP RS
-11
Varity_R
0.031
gMVP
0.31

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: rs780421744; hg19: chr16-21663892; COSMIC: COSV51679319; API