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GeneBe

16-730493-T-C

Variant summary

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

The NM_022493.3(CIAO3):c.1355A>G(p.Glu452Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000343 in 1,457,330 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 (★).

Frequency

Genomes: not found (cov: 34)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

CIAO3
NM_022493.3 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.41
Variant links:
Genes affected
CIAO3 (HGNC:14179): (cytosolic iron-sulfur assembly component 3) Predicted to enable 4 iron, 4 sulfur cluster binding activity. Involved in several processes, including iron-sulfur cluster assembly; oxygen homeostasis; and response to hypoxia. Part of CIA complex. [provided by Alliance of Genome Resources, Apr 2022]
HAGHL (HGNC:14177): (hydroxyacylglutathione hydrolase like) Predicted to enable hydroxyacylglutathione hydrolase activity and metal ion binding activity. Predicted to be involved in methylglyoxal catabolic process to D-lactate via S-lactoyl-glutathione. [provided by Alliance of Genome Resources, Apr 2022]

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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=0.12638697).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CIAO3NM_022493.3 linkuse as main transcriptc.1355A>G p.Glu452Gly missense_variant 11/11 ENST00000251588.7
CIAO3NM_001304799.2 linkuse as main transcriptc.1049A>G p.Glu350Gly missense_variant 12/12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CIAO3ENST00000251588.7 linkuse as main transcriptc.1355A>G p.Glu452Gly missense_variant 11/111 NM_022493.3 P1Q9H6Q4-1

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD3 exomes
AF:
0.00000405
AC:
1
AN:
246724
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
134332
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.00
Gnomad NFE exome
AF:
0.00000893
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000343
AC:
5
AN:
1457330
Hom.:
0
Cov.:
32
AF XY:
0.00000414
AC XY:
3
AN XY:
725176
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
34
Bravo
AF:
0.00000378
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsJan 23, 2023The c.1355A>G (p.E452G) alteration is located in exon 11 (coding exon 11) of the NARFL gene. This alteration results from a A to G substitution at nucleotide position 1355, causing the glutamic acid (E) at amino acid position 452 to be replaced by a glycine (G). 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
0.069
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.39
Cadd
Benign
18
Dann
Uncertain
0.99
DEOGEN2
Benign
0.32
T;.;.
Eigen
Benign
-0.65
Eigen_PC
Benign
-0.74
FATHMM_MKL
Benign
0.41
N
LIST_S2
Benign
0.56
T;.;T
M_CAP
Benign
0.034
D
MetaRNN
Benign
0.13
T;T;T
MetaSVM
Benign
-0.90
T
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Benign
0.41
T
PROVEAN
Uncertain
-3.0
D;D;D
REVEL
Benign
0.16
Sift
Benign
0.10
T;T;T
Sift4G
Benign
0.15
T;T;T
Polyphen
0.058
B;.;.
Vest4
0.12
MutPred
0.49
Gain of catalytic residue at S451 (P = 0.0598);.;.;
MVP
0.46
MPC
0.37
ClinPred
0.59
D
GERP RS
3.0
Varity_R
0.26
gMVP
0.47

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: rs1309269281; hg19: chr16-780493; API