Genetic Variant SIAH3:p.His78Leu (chr13-45783960-T-A) – 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_198849.3(SIAH3):c.233A>T(p.His78Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,603,544 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

SIAH3
NM_198849.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.74

Variant links:

Genes affected

SIAH3 (HGNC:30553): (siah E3 ubiquitin protein ligase family member 3) Predicted to enable ubiquitin conjugating enzyme binding activity and ubiquitin protein ligase activity. Involved in negative regulation of protein targeting to mitochondrion and regulation of protein stability. Located in mitochondrion and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

SIAH3 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=0.06100166).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SIAH3	NM_198849.3 link	c.233A>T	p.His78Leu	missense_variant	Exon 2 of 2	ENST00000400405.4	NP_942146.2	Q8IW03

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SIAH3	ENST00000400405.4 link	c.233A>T	p.His78Leu	missense_variant	Exon 2 of 2	1	NM_198849.3	ENSP00000383256.2		Q8IW03

Frequencies

GnomAD3 genomes

AF:

0.0000593

AC:

AN:

151666

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.0000295

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000214

AC:

AN:

233520

Hom.:

AF XY:

0.00000791

AC XY:

AN XY:

126498

show subpopulations

Gnomad AFR exome

AF:

0.000337

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000689

AC:

AN:

1451760

Hom.:

Cov.:

AF XY:

0.00000277

AC XY:

AN XY:

721208

show subpopulations

Gnomad4 AFR exome

AF:

0.000239

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:

0.00000181

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000593

AC:

AN:

151784

Hom.:

Cov.:

AF XY:

0.0000943

AC XY:

AN XY:

74196

show subpopulations

Gnomad4 AFR

AF:

0.000145

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000295

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000302

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 17, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.233A>T (p.H78L) alteration is located in exon 2 (coding exon 2) of the SIAH3 gene. This alteration results from a A to T substitution at nucleotide position 233, causing the histidine (H) at amino acid position 78 to be replaced by a leucine (L). 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

0.088

BayesDel_addAF

Benign

-0.073

BayesDel_noAF

Benign

-0.34

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.013

Eigen

Benign

-0.63

Eigen_PC

Benign

-0.47

FATHMM_MKL

Uncertain

0.78

LIST_S2

Benign

0.32

M_CAP

Benign

0.012

MetaRNN

Benign

0.061

MetaSVM

Benign

-0.99

MutationAssessor

Benign

1.2

PrimateAI

Benign

0.34

PROVEAN

Benign

0.59

REVEL

Benign

0.048

Sift

Benign

0.086

Sift4G

Benign

0.20

Polyphen

0.080

Vest4

0.29

MVP

0.13

MPC

0.21

ClinPred

0.023

GERP RS

3.2

Varity_R

0.069

gMVP

0.34

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