Variant chr14-54760243-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_015589.6(SAMD4A):c.1259C>T(p.Ser420Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,460,992 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SAMD4A
NM_015589.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.61

Variant links:

Genes affected

SAMD4A (HGNC:23023): (sterile alpha motif domain containing 4A) Sterile alpha motifs (SAMs) in proteins such as SAMD4A are part of an RNA-binding domain that functions as a posttranscriptional regulator by binding to an RNA sequence motif known as the Smaug recognition element, which was named after the Drosophila Smaug protein (Baez and Boccaccio, 2005 [PubMed 16221671]).[supplied by OMIM, Mar 2008]

SAMD4A links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1

In a modified_residue Phosphoserine (size 0) in uniprot entity SMAG1_HUMAN

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.21617076).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SAMD4A	NM_015589.6 linkuse as main transcript	c.1259C>T	p.Ser420Phe	missense_variant	7/13	ENST00000554335.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SAMD4A	ENST00000554335.6 linkuse as main transcript	c.1259C>T	p.Ser420Phe	missense_variant	7/13	5	NM_015589.6	A1	Q9UPU9-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000414

AC:

AN:

241668

Hom.:

AF XY:

0.00

AC XY:

AN XY:

132140

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:

0.00000939

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460992

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726806

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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 submitter

clinical testing

Ambry Genetics

May 17, 2023

The c.1259C>T (p.S420F) alteration is located in exon 6 (coding exon 6) of the SAMD4A gene. This alteration results from a C to T substitution at nucleotide position 1259, causing the serine (S) at amino acid position 420 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

Benign

0.10

BayesDel_addAF

Uncertain

0.018

BayesDel_noAF

Benign

-0.21

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.034

T;.;.;T;.

Eigen

Uncertain

0.30

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.88

.;D;D;D;.

M_CAP

Benign

0.030

MetaRNN

Benign

0.22

T;T;T;T;T

MetaSVM

Benign

-0.58

MutationAssessor

Benign

1.8

L;.;.;L;.

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.66

PROVEAN

Benign

-1.3

N;.;.;N;N

REVEL

Benign

0.062

Sift

Uncertain

0.027

D;.;.;D;D

Sift4G

Uncertain

0.039

D;T;D;D;D

Polyphen

0.61

P;D;D;P;D

Vest4

0.44

MutPred

0.25

Loss of phosphorylation at S420 (P = 0.0143);.;.;Loss of phosphorylation at S420 (P = 0.0143);.;

MVP

0.12

MPC

0.78

ClinPred

0.44

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.10

gMVP

0.27

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