11-18705991-G-A

Variant summary

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

The NM_173588.4(IGSF22):​c.3736C>T​(p.Leu1246Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000103 in 1,551,730 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

IGSF22
NM_173588.4 missense

Scores

1
1
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.06
Variant links:
Genes affected
IGSF22 (HGNC:26750): (immunoglobulin superfamily member 22)

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=0.08180809).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IGSF22NM_173588.4 linkuse as main transcriptc.3736C>T p.Leu1246Phe missense_variant 22/23 ENST00000513874.6 NP_775859.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IGSF22ENST00000513874.6 linkuse as main transcriptc.3736C>T p.Leu1246Phe missense_variant 22/235 NM_173588.4 ENSP00000421191 P1Q8N9C0-2
IGSF22ENST00000510673.1 linkuse as main transcriptn.139C>T non_coding_transcript_exon_variant 1/23
IGSF22ENST00000319338.6 linkuse as main transcriptc.*632C>T 3_prime_UTR_variant, NMD_transcript_variant 20/212 ENSP00000322422 Q8N9C0-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152240
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:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000130
AC:
2
AN:
154088
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
81776
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:
0.0000878
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000100
AC:
14
AN:
1399372
Hom.:
0
Cov.:
32
AF XY:
0.0000116
AC XY:
8
AN XY:
690202
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:
0.000177
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152358
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74498
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:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000420
AC:
1
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

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 GeneticsDec 13, 2023The c.3736C>T (p.L1246F) alteration is located in exon 22 (coding exon 21) of the IGSF22 gene. This alteration results from a C to T substitution at nucleotide position 3736, causing the leucine (L) at amino acid position 1246 to be replaced by a phenylalanine (F). 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
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
21
DANN
Uncertain
1.0
Eigen
Benign
-0.46
Eigen_PC
Benign
-0.27
FATHMM_MKL
Benign
0.59
D
LIST_S2
Benign
0.56
T
M_CAP
Benign
0.033
D
MetaRNN
Benign
0.082
T
MetaSVM
Benign
-0.99
T
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.38
T
PROVEAN
Benign
1.6
N
REVEL
Benign
0.058
Sift
Benign
0.044
D
Sift4G
Pathogenic
0.0
D
Vest4
0.37
MutPred
0.59
Gain of catalytic residue at L1246 (P = 0.0243);
MVP
0.33
MPC
0.69
ClinPred
0.56
D
GERP RS
2.9
gMVP
0.85

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs574167515; hg19: chr11-18727538; API