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GeneBe

15-67372375-T-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001031715.3(IQCH):c.1018T>G(p.Tyr340Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000711 in 1,614,042 control chromosomes in the GnomAD database, including 3 homozygotes. 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 0.00045 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00074 ( 3 hom. )

Consequence

IQCH
NM_001031715.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.08
Variant links:
Genes affected
IQCH (HGNC:25721): (IQ motif containing H)
IQCH-AS1 (HGNC:44104): (IQCH antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.021520257).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IQCHNM_001031715.3 linkuse as main transcriptc.1018T>G p.Tyr340Asp missense_variant 9/21 ENST00000335894.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IQCHENST00000335894.9 linkuse as main transcriptc.1018T>G p.Tyr340Asp missense_variant 9/211 NM_001031715.3 A2Q86VS3-1
IQCH-AS1ENST00000669759.1 linkuse as main transcriptn.121+48960A>C intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.000453
AC:
69
AN:
152184
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.000926
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000319
AC:
80
AN:
250736
Hom.:
0
AF XY:
0.000266
AC XY:
36
AN XY:
135546
show subpopulations
Gnomad AFR exome
AF:
0.0000618
Gnomad AMR exome
AF:
0.000202
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:
0.000636
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000737
AC:
1078
AN:
1461858
Hom.:
3
Cov.:
32
AF XY:
0.000708
AC XY:
515
AN XY:
727226
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000224
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:
0.000922
Gnomad4 OTH exome
AF:
0.000695
GnomAD4 genome
AF:
0.000453
AC:
69
AN:
152184
Hom.:
0
Cov.:
32
AF XY:
0.000363
AC XY:
27
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.0000724
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000926
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000599
Hom.:
0
Bravo
AF:
0.000487
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00116
AC:
10
ExAC
AF:
0.000247
AC:
30
EpiCase
AF:
0.000436
EpiControl
AF:
0.000652

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 GeneticsAug 02, 2021The c.1018T>G (p.Y340D) alteration is located in exon 9 (coding exon 9) of the IQCH gene. This alteration results from a T to G substitution at nucleotide position 1018, causing the tyrosine (Y) at amino acid position 340 to be replaced by an aspartic acid (D). 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
0.080
BayesDel_addAF
Benign
-0.52
T
BayesDel_noAF
Benign
-0.63
Cadd
Benign
0.040
Dann
Benign
0.24
DEOGEN2
Benign
0.0072
T;.;.;.
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.022
N
LIST_S2
Benign
0.47
T;T;T;T
M_CAP
Benign
0.0036
T
MetaRNN
Benign
0.022
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.98
L;.;.;.
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.34
T
PROVEAN
Benign
1.4
N;.;.;N
REVEL
Benign
0.036
Sift
Benign
0.62
T;.;.;T
Sift4G
Benign
0.63
T;T;T;T
Polyphen
0.0
B;B;B;B
Vest4
0.13
MVP
0.21
MPC
0.18
ClinPred
0.057
T
GERP RS
-9.3
Varity_R
0.041
gMVP
0.36

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: rs34599707; hg19: chr15-67664713; API