Variant 19-18257824-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_001145304.2(IQCN):c.3460C>T(p.Arg1154Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000236 in 1,611,116 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 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. R1154G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

IQCN
NM_001145304.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0190

Variant links:

Genes affected

IQCN (HGNC:29350): (IQ motif containing N) Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

IQCN links:

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=0.12098187).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
IQCN	NM_001145304.2 linkuse as main transcript	c.3460C>T	p.Arg1154Trp	missense_variant	4/4	ENST00000392413.5
IQCN	NM_025249.4 linkuse as main transcript	c.2899C>T	p.Arg967Trp	missense_variant	4/4
IQCN	NM_001145305.2 linkuse as main transcript	c.2761C>T	p.Arg921Trp	missense_variant	4/4
IQCN	XM_005260084.2 linkuse as main transcript	c.3460C>T	p.Arg1154Trp	missense_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IQCN	ENST00000392413.5 linkuse as main transcript	c.3460C>T	p.Arg1154Trp	missense_variant	4/4	1	NM_001145304.2	A2	Q9H0B3-4
IQCN	ENST00000600328.7 linkuse as main transcript	c.2899C>T	p.Arg967Trp	missense_variant	4/4	1		P2	Q9H0B3-1
IQCN	ENST00000600359.7 linkuse as main transcript	c.2761C>T	p.Arg921Trp	missense_variant	4/4	2		A2	Q9H0B3-5
IQCN	ENST00000599638.2 linkuse as main transcript	n.4795C>T		non_coding_transcript_exon_variant	1/1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000368

AC:

AN:

244386

Hom.:

AF XY:

0.0000525

AC XY:

AN XY:

133452

show subpopulations

Gnomad AFR exome

AF:

0.0000645

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000489

Gnomad NFE exome

AF:

0.0000639

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000226

AC:

AN:

1458812

Hom.:

Cov.:

AF XY:

0.0000248

AC XY:

AN XY:

725714

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.0000587

Gnomad4 NFE exome

AF:

0.0000180

Gnomad4 OTH exome

AF:

0.0000829

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152304

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.0000722

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000941

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000642

ExAC

AF:

0.0000579

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

Oct 06, 2021

The c.3460C>T (p.R1154W) alteration is located in exon 4 (coding exon 3) of the KIAA1683 gene. This alteration results from a C to T substitution at nucleotide position 3460, causing the arginine (R) at amino acid position 1154 to be replaced by a tryptophan (W). 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

0.19

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.51

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.17

T;T;.;.

Eigen

Benign

-0.78

Eigen_PC

Benign

-0.94

FATHMM_MKL

Benign

0.056

LIST_S2

Benign

0.72

T;T;T;T

M_CAP

Benign

0.043

MetaRNN

Benign

0.12

T;T;T;T

MetaSVM

Benign

-0.98

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.33

Sift4G

Uncertain

0.0020

D;D;D;D

Polyphen

0.41

.;B;.;.

Vest4

0.34

MVP

0.29

MPC

0.20

ClinPred

0.079

GERP RS

-1.4

Varity_R

0.079

gMVP

0.48

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