SELENOI

Chr 2

selenoprotein I

Also known as: EPT1, SELI, SEPI, SPG81

The multi-pass transmembrane protein encoded by this gene belongs to the CDP-alcohol phosphatidyltransferase class-I family. It catalyzes the transfer of phosphoethanolamine from CDP-ethanolamine to diacylglycerol to produce phosphatidylethanolamine, which is involved in the formation and maintenance of vesicular membranes, regulation of lipid metabolism, and protein folding. This protein is a selenoprotein, containing the rare selenocysteine (Sec) amino acid at its active site. 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. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2016]

ResearchGenerating clinical summary…

Primary Disease Associations & Inheritance

UniProtSpastic paraplegia 81, autosomal recessive

Clinical highlights

Interpreting a novel variant
Loss of function is the curated mechanism (Gene2Phenotype) and the gene is intolerant of it in the population — truncating, frameshift and canonical splice variants carry more prior weight here than missense.Curated gene-level mechanism — a prior for triage, not a per-variant call.
0
Active trials
11
Pubs (1 yr)
P/LP submissions
P/LP missense
0.44
LOEUF
LOF
Mechanism· G2P
Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Moderate LoF intolerance
LoF Constraint?
0.44LOEUF
pLI 0.642
Z-score 3.41
OE 0.19 (0.090.44)
Moderately constrained

More LoF-intolerant than ~75% of genes

Missense Constraint?
1.67Z-score
OE missense 0.66 (0.580.77)
131 obs / 197.1 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.19 (0.090.44)
00.351.4
Missense OE?0.66 (0.580.77)
00.61.4
Synonymous OE?1.01
01.21.6
LoF obs/exp: 4 / 20.8Missense obs/exp: 131 / 197.1Syn Z: -0.10

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

SELENOI · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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