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GeneBe

19-18257205-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_001145304.2(IQCN):​c.4079G>A​(p.Arg1360Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000775 in 1,613,448 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000075 ( 0 hom. )

Consequence

IQCN
NM_001145304.2 missense

Scores

15

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.325
Variant links:
Genes affected
IQCN (HGNC:29350): (IQ motif containing N) Located in mitochondrion. [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 -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.009229779).
BP6
Variant 19-18257205-C-T is Benign according to our data. Variant chr19-18257205-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3110575.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IQCNNM_001145304.2 linkuse as main transcriptc.4079G>A p.Arg1360Gln missense_variant 4/4 ENST00000392413.5
IQCNNM_025249.4 linkuse as main transcriptc.3518G>A p.Arg1173Gln missense_variant 4/4
IQCNNM_001145305.2 linkuse as main transcriptc.3380G>A p.Arg1127Gln missense_variant 4/4
IQCNXM_005260084.2 linkuse as main transcriptc.4079G>A p.Arg1360Gln missense_variant 4/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IQCNENST00000392413.5 linkuse as main transcriptc.4079G>A p.Arg1360Gln missense_variant 4/41 NM_001145304.2 A2Q9H0B3-4
IQCNENST00000600328.7 linkuse as main transcriptc.3518G>A p.Arg1173Gln missense_variant 4/41 P2Q9H0B3-1
IQCNENST00000600359.7 linkuse as main transcriptc.3380G>A p.Arg1127Gln missense_variant 4/42 A2Q9H0B3-5
IQCNENST00000599638.2 linkuse as main transcriptn.5414G>A non_coding_transcript_exon_variant 1/1

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152262
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00202
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:
0.000478
GnomAD3 exomes
AF:
0.000136
AC:
34
AN:
250618
Hom.:
0
AF XY:
0.000147
AC XY:
20
AN XY:
135662
show subpopulations
Gnomad AFR exome
AF:
0.0000617
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00209
Gnomad EAS exome
AF:
0.000163
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000530
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.0000746
AC:
109
AN:
1461068
Hom.:
0
Cov.:
30
AF XY:
0.0000798
AC XY:
58
AN XY:
726886
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00172
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000324
Gnomad4 OTH exome
AF:
0.000265
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152380
Hom.:
0
Cov.:
33
AF XY:
0.0000939
AC XY:
7
AN XY:
74514
show subpopulations
Gnomad4 AFR
AF:
0.000168
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00202
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000212
Hom.:
0
Bravo
AF:
0.000125
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000115
AC:
14
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsDec 21, 2021This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.62
T
BayesDel_noAF
Benign
-0.86
CADD
Benign
0.31
DANN
Benign
0.76
DEOGEN2
Benign
0.0028
T;T;.;.
Eigen
Benign
-1.9
Eigen_PC
Benign
-2.0
FATHMM_MKL
Benign
0.027
N
LIST_S2
Benign
0.50
T;T;T;T
M_CAP
Benign
0.0047
T
MetaRNN
Benign
0.0092
T;T;T;T
MetaSVM
Benign
-0.92
T
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.24
T
Sift4G
Benign
0.55
T;T;T;T
Polyphen
0.0030
.;B;.;.
Vest4
0.082
MVP
0.030
MPC
0.21
ClinPred
0.015
T
GERP RS
-7.3
Varity_R
0.018
gMVP
0.021

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: rs200030980; hg19: chr19-18368015; COSMIC: COSV62747866; COSMIC: COSV62747866; API