Genetic Variant NM_022493.3:c.1283G>C (chr16-730565-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

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

The NM_022493.3(CIAO3):c.1283G>C(p.Arg428Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,610,880 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CIAO3
NM_022493.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.226

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]

CIAO3 links:

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]

HAGHL links:

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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=0.06320384).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CIAO3	NM_022493.3 link	c.1283G>C	p.Arg428Pro	missense_variant	Exon 11 of 11	ENST00000251588.7	NP_071938.1	Q9H6Q4-1
CIAO3	NM_001304799.2 link	c.977G>C	p.Arg326Pro	missense_variant	Exon 12 of 12		NP_001291728.1	Q9H6Q4-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CIAO3	ENST00000251588.7 link	c.1283G>C	p.Arg428Pro	missense_variant	Exon 11 of 11	1	NM_022493.3	ENSP00000251588.2		Q9H6Q4-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152274

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000405

AC:

AN:

247072

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134532

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000545

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000206

AC:

AN:

1458606

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725694

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152274

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74392

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.040

BayesDel_noAF

Benign

-0.30

CADD

Benign

5.1

DANN

Benign

0.59

DEOGEN2

Benign

0.049

T;.;.

Eigen

Benign

-0.86

Eigen_PC

Benign

-0.76

FATHMM_MKL

Benign

0.69

LIST_S2

Benign

0.63

T;.;T

M_CAP

Benign

0.022

MetaRNN

Benign

0.063

T;T;T

MetaSVM

Benign

-1.1

PrimateAI

Benign

0.47

PROVEAN

Benign

3.4

N;N;N

REVEL

Uncertain

0.30

Sift

Benign

0.65

T;T;T

Sift4G

Benign

1.0

T;T;T

Polyphen

0.0020

B;.;.

Vest4

0.16

MutPred

0.39

Gain of glycosylation at R428 (P = 0.0651);.;.;

MVP

0.37

MPC

0.24

ClinPred

0.17

GERP RS

4.0

Varity_R

0.16

gMVP

0.63

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over