Variant chr3-197938748-A-C 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_032263.5(IQCG):c.315T>G(p.Asn105Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000552 in 1,613,558 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

IQCG
NM_032263.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.220

Variant links:

Genes affected

IQCG (HGNC:25251): (IQ motif containing G) Enables Hsp70 protein binding activity and calmodulin binding activity. Predicted to be involved in sperm axoneme assembly. Located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

IQCG 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=0.039886683).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IQCG	NM_032263.5 linkuse as main transcript	c.315T>G	p.Asn105Lys	missense_variant	5/12	ENST00000265239.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IQCG	ENST00000265239.11 linkuse as main transcript	c.315T>G	p.Asn105Lys	missense_variant	5/12	1	NM_032263.5	P1	Q9H095-1

Frequencies

GnomAD3 genomes

AF:

0.000243

AC:

AN:

152140

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000821

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:

0.00

Gnomad OTH

AF:

0.000480

GnomAD3 exomes

AF:

0.0000477

AC:

AN:

251434

Hom.:

AF XY:

0.0000442

AC XY:

AN XY:

135886

show subpopulations

Gnomad AFR exome

AF:

0.000615

Gnomad AMR exome

AF:

0.0000289

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:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000356

AC:

AN:

1461418

Hom.:

Cov.:

AF XY:

0.0000371

AC XY:

AN XY:

727080

show subpopulations

Gnomad4 AFR exome

AF:

0.00132

Gnomad4 AMR exome

AF:

0.0000671

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.000243

AC:

AN:

152140

Hom.:

Cov.:

AF XY:

0.000242

AC XY:

AN XY:

74312

show subpopulations

Gnomad4 AFR

AF:

0.000821

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:

0.00

Gnomad4 OTH

AF:

0.000480

Alfa

AF:

0.000322

Hom.:

Bravo

AF:

0.000310

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000330

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

Feb 09, 2022

The c.315T>G (p.N105K) alteration is located in exon 5 (coding exon 3) of the IQCG gene. This alteration results from a T to G substitution at nucleotide position 315, causing the asparagine (N) at amino acid position 105 to be replaced by a lysine (K). 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

0.096

BayesDel_addAF

Benign

-0.56

BayesDel_noAF

Benign

-0.65

CADD

Benign

0.60

DANN

Benign

0.25

DEOGEN2

Benign

0.0010

T;T;.;.

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.026

LIST_S2

Benign

0.40

.;T;T;T

M_CAP

Benign

0.0070

MetaRNN

Benign

0.040

T;T;T;T

MetaSVM

Benign

-1.1

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.28

PROVEAN

Benign

-0.86

N;N;N;N

REVEL

Benign

0.042

Sift

Benign

0.28

T;T;T;T

Sift4G

Benign

0.67

T;T;T;.

Polyphen

0.010

B;B;P;.

Vest4

0.11

MutPred

0.19

Gain of ubiquitination at N105 (P = 0.0104);Gain of ubiquitination at N105 (P = 0.0104);Gain of ubiquitination at N105 (P = 0.0104);.;

MVP

0.095

MPC

0.28

ClinPred

0.013

GERP RS

-0.93

Varity_R

0.080

gMVP

0.076

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

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