5-42806930-T-G

Variant summary

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

The NM_005410.4(SELENOP):c.382A>C(p.Asn128His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000931 in 1,611,118 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: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

SELENOP
NM_005410.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.22

Variant links:

Genes affected

SELENOP (HGNC:10751): (selenoprotein P) This gene encodes a selenoprotein that is predominantly expressed in the liver and secreted into the plasma. This selenoprotein is unique in that it contains multiple selenocysteine (Sec) residues per polypeptide (10 in human), and accounts for most of the selenium in plasma. It has been implicated as an extracellular antioxidant, and in the transport of selenium to extra-hepatic tissues via apolipoprotein E receptor-2 (apoER2). Mice lacking this gene exhibit neurological dysfunction, suggesting its importance in normal brain function. Sec is encoded by the UGA codon, which normally signals translation termination. The 3' UTRs of selenoprotein mRNAs contain a conserved stem-loop structure, designated the Sec insertion sequence (SECIS) element, that is necessary for the recognition of UGA as a Sec codon, rather than as a stop signal. The mRNA for this selenoprotein contains two SECIS elements. The use of alternative polyadenylation sites, one located in between the two SECIS elements, results in two populations of mRNAs containing either both (predominant) or just the upstream SECIS element (PMID:27881738). Alternatively spliced transcript variants have also been found for this gene. [provided by RefSeq, Oct 2018]

SELENOP links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1

In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity SEPP1_HUMAN

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.20984724).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SELENOP	NM_005410.4 linkuse as main transcript	c.382A>C	p.Asn128His	missense_variant	3/5	ENST00000514985.6
SELENOP	NM_001093726.3 linkuse as main transcript	c.472A>C	p.Asn158His	missense_variant	4/6
SELENOP	NM_001085486.3 linkuse as main transcript	c.382A>C	p.Asn128His	missense_variant	4/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SELENOP	ENST00000514985.6 linkuse as main transcript	c.382A>C	p.Asn128His	missense_variant	3/5	1	NM_005410.4	P1
	ENST00000606056.1 linkuse as main transcript	n.537T>G		non_coding_transcript_exon_variant	1/1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

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:

0.0000241

AC:

AN:

249080

Hom.:

AF XY:

0.0000370

AC XY:

AN XY:

135204

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000167

Gnomad SAS exome

AF:

0.0000982

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000960

AC:

AN:

1458798

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

725562

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000101

Gnomad4 SAS exome

AF:

0.0000582

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.01e-7

Gnomad4 OTH exome

AF:

0.0000498

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152320

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74488

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.0000331

AC:

Asia WGS

AF:

0.000578

AC:

AN:

3472

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 30, 2022

The c.382A>C (p.N128H) alteration is located in exon 3 (coding exon 2) of the SEPP1 gene. This alteration results from a A to C substitution at nucleotide position 382, causing the asparagine (N) at amino acid position 128 to be replaced by a histidine (H). 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

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.56

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Benign

0.12

T;T;T;.;.

Eigen

Uncertain

0.19

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Uncertain

0.93

MetaRNN

Benign

0.21

T;T;T;T;T

MetaSVM

Benign

-0.97

MutationAssessor

Uncertain

2.0

M;M;M;.;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-1.9

N;N;N;N;N

REVEL

Benign

0.085

Sift

Benign

0.048

D;D;D;T;T

Sift4G

Uncertain

0.042

D;D;D;.;.

MutPred

0.55

Loss of ubiquitination at K131 (P = 0.1343);Loss of ubiquitination at K131 (P = 0.1343);Loss of ubiquitination at K131 (P = 0.1343);Loss of ubiquitination at K131 (P = 0.1343);Loss of ubiquitination at K131 (P = 0.1343);

MVP

0.18

MPC

0.37

ClinPred

0.20

GERP RS

4.3

Varity_R

0.12

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