chr19-39515592-C-T

Position:

• chr19-39515592-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_182704.2(SELENOV):​c.380C>T​(p.Pro127Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000716 in 1,396,778 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
• Consequence: SELENOV NM_182704.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.826

Genes affected

SELENOV (HGNC:30399): (selenoprotein V) This gene encodes a selenoprotein containing a selenocysteine (Sec) residue, which is encoded by the UGA codon that normally signals translation termination. The 3' UTRs of selenoprotein mRNAs contain a conserved stem-loop structure, the Sec insertion sequence (SECIS) element, which is necessary for the recognition of UGA as a Sec codon rather than as a stop signal. This protein is specifically expressed in the testis. It belongs to the SelWTH family, which possesses a thioredoxin-like fold and a conserved CxxU (C is cysteine, U is Sec) motif, suggesting a redox function for this gene. Alternatively spliced transcript variants have been found for this gene.[provided by RefSeq, Apr 2017]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.09835231).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SELENOV	NM_182704.2	c.380C>T	p.Pro127Leu	missense_variant	1/6	ENST00000335426.9
SELENOV	NM_001350809.1	c.380C>T	p.Pro127Leu	missense_variant	1/5
SELENOV	NR_146916.2	n.170C>T		non_coding_transcript_exon_variant	1/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SELENOV	ENST00000335426.9	c.380C>T	p.Pro127Leu	missense_variant	1/6	1	NM_182704.2	P1
SELENOV	ENST00000597876.1	n.147C>T		non_coding_transcript_exon_variant	1/2	3

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 7.16e-7 AC: 1 AN: 1396778 Hom.: 0 Cov.: 32 AF XY: 0.00000145 AC XY: 1 AN XY: 689022

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: 9.27e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 26, 2023

The c.380C>T (p.P127L) alteration is located in exon 1 (coding exon 1) of the SELV gene. This alteration results from a C to T substitution at nucleotide position 380, causing the proline (P) at amino acid position 127 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
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.58
CADD	Benign	17
DANN	Benign	0.91
DEOGEN2	Benign	0.064	T;.;.
Eigen	Benign	-1.4
Eigen_PC	Benign	-1.6
FATHMM_MKL	Benign	0.075	N
LIST_S2	Benign	0.49	T;T;T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.098	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.69	N;.;.
MutationTaster	Benign	1.0	N;N
PrimateAI	Uncertain	0.52	T
PROVEAN	Uncertain	-3.6	D;D;.
REVEL	Benign	0.058
Sift	Benign	0.15	T;T;.
Sift4G	Benign	0.21	T;T;T
Polyphen		0.79	P;.;.
Vest4		0.15
MutPred		0.40		Loss of loop (P = 0.0073);Loss of loop (P = 0.0073);Loss of loop (P = 0.0073);
MVP		0.092
MPC		0.64
ClinPred		0.21	T
GERP RS		-6.2
Varity_R		0.089

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-40006232;