2-127489844-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_017969.3(IWS1):​c.2147G>A​(p.Arg716Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000219 in 1,595,650 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

IWS1
NM_017969.3 missense

Scores

2
7
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.25
Variant links:
Genes affected
IWS1 (HGNC:25467): (interacts with SUPT6H, CTD assembly factor 1) Involved in regulation of histone modification; regulation of mRNA export from nucleus; and regulation of mRNA processing. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.32618487).
BS2
High AC in GnomAdExome4 at 34 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IWS1NM_017969.3 linkuse as main transcriptc.2147G>A p.Arg716Gln missense_variant 11/14 ENST00000295321.9 NP_060439.2 Q96ST2-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IWS1ENST00000295321.9 linkuse as main transcriptc.2147G>A p.Arg716Gln missense_variant 11/141 NM_017969.3 ENSP00000295321.4 Q96ST2-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152170
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000236
AC:
34
AN:
1443480
Hom.:
0
Cov.:
27
AF XY:
0.0000278
AC XY:
20
AN XY:
719558
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.0000349
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000265
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152170
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74332
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:
0.00000756
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0

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 29, 2023The c.2147G>A (p.R716Q) alteration is located in exon 11 (coding exon 11) of the IWS1 gene. This alteration results from a G to A substitution at nucleotide position 2147, causing the arginine (R) at amino acid position 716 to be replaced by a glutamine (Q). 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
Uncertain
0.49
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.35
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.14
T;T
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.95
D;D
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.33
T;T
MetaSVM
Benign
-0.95
T
MutationAssessor
Uncertain
2.5
M;.
PrimateAI
Uncertain
0.62
T
PROVEAN
Uncertain
-2.9
D;.
REVEL
Benign
0.093
Sift
Benign
0.035
D;.
Sift4G
Benign
0.14
T;.
Polyphen
0.95
P;.
Vest4
0.41
MutPred
0.37
Loss of MoRF binding (P = 0.0591);.;
MVP
0.54
MPC
1.8
ClinPred
0.95
D
GERP RS
5.0
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.7
Varity_R
0.39
gMVP
0.80

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: rs765053803; hg19: chr2-128247420; API