Genetic Variant STAU1:p.Ala449Val (chr20-49117940-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_017453.4(STAU1):c.1346C>T(p.Ala449Val) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A449D) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Consequence

STAU1
NM_017453.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.38

Publications

0 publications found

Variant links:

Genes affected

STAU1 (HGNC:11370): (staufen double-stranded RNA binding protein 1) Staufen is a member of the family of double-stranded RNA (dsRNA)-binding proteins involved in the transport and/or localization of mRNAs to different subcellular compartments and/or organelles. These proteins are characterized by the presence of multiple dsRNA-binding domains which are required to bind RNAs having double-stranded secondary structures. The human homologue of staufen encoded by STAU, in addition contains a microtubule- binding domain similar to that of microtubule-associated protein 1B, and binds tubulin. The STAU gene product has been shown to be present in the cytoplasm in association with the rough endoplasmic reticulum (RER), implicating this protein in the transport of mRNA via the microtubule network to the RER, the site of translation. [provided by RefSeq, Apr 2020]

STAU1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1521438).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017453.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
STAU1	NM_017453.4	MANE Select	c.1346C>T	p.Ala449Val	missense	Exon 11 of 14	NP_059347.2	O95793-1
STAU1	NM_001322932.2		c.1364C>T	p.Ala455Val	missense	Exon 10 of 13	NP_001309861.1
STAU1	NM_001322933.2		c.1364C>T	p.Ala455Val	missense	Exon 11 of 14	NP_001309862.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
STAU1	ENST00000371856.7	TSL:1 MANE Select	c.1346C>T	p.Ala449Val	missense	Exon 11 of 14	ENSP00000360922.2	O95793-1
STAU1	ENST00000371828.7	TSL:1	c.1121C>T	p.Ala374Val	missense	Exon 10 of 13	ENSP00000360893.3	O95793-3
STAU1	ENST00000347458.9	TSL:1	c.1103C>T	p.Ala368Val	missense	Exon 9 of 12	ENSP00000323443.7	O95793-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.089

BayesDel_noAF

Benign

-0.37

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.11

Eigen

Benign

0.086

Eigen_PC

Uncertain

0.31

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.95

M_CAP

Benign

0.012

MetaRNN

Benign

0.15

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.2

PhyloP100

6.4

PrimateAI

Uncertain

0.71

PROVEAN

Benign

-0.69

REVEL

Benign

0.091

Sift

Benign

0.19

Sift4G

Benign

0.25

Polyphen

0.048

Vest4

0.24

MutPred

0.35

Gain of helix (P = 0.0022)

MVP

0.21

MPC

0.46

ClinPred

0.80

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.16

gMVP

0.49

Mutation Taster

=46/54

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over