Variant chr7-123461502-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_178827.5(IQUB):c.1862G>A(p.Arg621His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000023 in 1,611,952 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R621C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

IQUB
NM_178827.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.186

Variant links:

Genes affected

IQUB (HGNC:21995): (IQ motif and ubiquitin domain containing) Predicted to be involved in cilium assembly. Predicted to act upstream of or within smoothened signaling pathway. Predicted to be active in acrosomal vesicle and motile cilium. [provided by Alliance of Genome Resources, Apr 2022]

IQUB links:

Genome browser will be placed here

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=0.05102566).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IQUB	NM_178827.5 linkuse as main transcript	c.1862G>A	p.Arg621His	missense_variant	11/13	ENST00000324698.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IQUB	ENST00000324698.11 linkuse as main transcript	c.1862G>A	p.Arg621His	missense_variant	11/13	1	NM_178827.5	P1	Q8NA54-1
IQUB	ENST00000466202.5 linkuse as main transcript	c.1862G>A	p.Arg621His	missense_variant	11/13	1		P1	Q8NA54-1
IQUB	ENST00000469057.1 linkuse as main transcript	c.*420G>A		3_prime_UTR_variant, NMD_transcript_variant	10/12	2
IQUB	ENST00000484508.5 linkuse as main transcript	c.*267G>A		3_prime_UTR_variant, NMD_transcript_variant	12/14	2			Q8NA54-2

Frequencies

GnomAD3 genomes

AF:

0.0000990

AC:

AN:

151512

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000315

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:

0.0000295

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000319

AC:

AN:

250548

Hom.:

AF XY:

0.0000443

AC XY:

AN XY:

135408

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.0000265

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000151

AC:

AN:

1460440

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

726532

show subpopulations

Gnomad4 AFR exome

AF:

0.000359

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.00000630

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000990

AC:

AN:

151512

Hom.:

Cov.:

AF XY:

0.000149

AC XY:

AN XY:

73968

show subpopulations

Gnomad4 AFR

AF:

0.000315

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:

0.0000295

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000989

Hom.:

Bravo

AF:

0.000170

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000412

AC:

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 submitter

clinical testing

Ambry Genetics

Aug 17, 2021

The c.1862G>A (p.R621H) alteration is located in exon 11 (coding exon 10) of the IQUB gene. This alteration results from a G to A substitution at nucleotide position 1862, causing the arginine (R) at amino acid position 621 to be replaced by a histidine (H). 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

0.077

BayesDel_addAF

Benign

-0.52

BayesDel_noAF

Benign

-0.70

CADD

Benign

3.9

DANN

Benign

0.68

DEOGEN2

Benign

0.0019

T;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.031

LIST_S2

Benign

0.69

.;T

M_CAP

Benign

0.0061

MetaRNN

Benign

0.051

T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

0.29

N;N

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.23

PROVEAN

Benign

-0.64

N;N

REVEL

Benign

0.0060

Sift

Benign

0.37

T;T

Sift4G

Benign

0.29

T;T

Polyphen

0.011

B;B

Vest4

0.18

MVP

0.15

MPC

0.025

ClinPred

0.013

GERP RS

-1.9

Varity_R

0.021

gMVP

0.30

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over