Genetic Variant SIAH2:p.Leu77Phe (chr3-150762621-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_005067.7(SIAH2):c.229C>T(p.Leu77Phe) variant causes a missense change. The variant allele was found at a frequency of 0.000046 in 1,610,388 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000048 ( 0 hom. )

Consequence

SIAH2
NM_005067.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.61

Variant links:

Genes affected

SIAH2 (HGNC:10858): (siah E3 ubiquitin protein ligase 2) This gene encodes a protein that is a member of the seven in absentia homolog (SIAH) family. The protein is an E3 ligase and is involved in ubiquitination and proteasome-mediated degradation of specific proteins. The activity of this ubiquitin ligase has been implicated in regulating cellular response to hypoxia. [provided by RefSeq, Jul 2008]

SIAH2 links:

SIAH2-AS1 (HGNC:40526): (SIAH2 antisense RNA 1)

SIAH2-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 70 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SIAH2	NM_005067.7 link	c.229C>T	p.Leu77Phe	missense_variant	Exon 1 of 2	ENST00000312960.4	NP_005058.3	O43255
SIAH2-AS1	NR_187305.1 link	n.310+214G>A		intron_variant	Intron 2 of 2
SIAH2-AS1	NR_187306.1 link	n.113+214G>A		intron_variant	Intron 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SIAH2	ENST00000312960.4 link	c.229C>T	p.Leu77Phe	missense_variant	Exon 1 of 2	1	NM_005067.7	ENSP00000322457.3		O43255

Frequencies

GnomAD3 genomes

AF:

0.0000264

AC:

AN:

151532

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000442

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000539

AC:

AN:

241042

Hom.:

AF XY:

0.0000531

AC XY:

AN XY:

131918

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:

0.000121

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000480

AC:

AN:

1458856

Hom.:

Cov.:

AF XY:

0.0000441

AC XY:

AN XY:

725682

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000225

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:

0.0000603

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.0000264

AC:

AN:

151532

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74008

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000656

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000442

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000564

Hom.:

ExAC

AF:

0.0000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 15, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.229C>T (p.L77F) alteration is located in exon 1 (coding exon 1) of the SIAH2 gene. This alteration results from a C to T substitution at nucleotide position 229, causing the leucine (L) at amino acid position 77 to be replaced by a phenylalanine (F). 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

Pathogenic

0.94

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.47

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.67

Eigen

Benign

-0.11

Eigen_PC

Benign

-0.12

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.97

M_CAP

Benign

0.021

MetaRNN

Uncertain

0.52

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.8

PrimateAI

Pathogenic

0.94

PROVEAN

Uncertain

-2.7

REVEL

Benign

0.12

Sift

Uncertain

0.023

Sift4G

Uncertain

0.060

Polyphen

0.57

Vest4

0.73

MutPred

0.43

Loss of glycosylation at S76 (P = 0.0261);

MVP

0.30

MPC

1.2

ClinPred

0.27

GERP RS

3.4

Varity_R

0.56

gMVP

0.25

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