INSL5

Chr 1

insulin like 5

Also known as: PRO182, UNQ156

The encoded protein is a hormone similar to relaxin that activates the RXFP4 receptor and may regulate gut contractility and thymic development. Mutations cause autosomal recessive developmental and epileptic encephalopathy with microcephaly and simplified gyral pattern, typically presenting in early infancy. This gene shows low constraint to loss-of-function variation in the general population.

Summary from RefSeq, UniProt
Research Assistant →
0
Active trials
5
Pubs (1 yr)
23
P/LP submissions
0%
P/LP missense
1.78
LOEUF
DN
Mechanism· predicted
Clinical SummaryINSL5
Population Constraint (gnomAD)
Low constraint (pLI 0.14) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
23 unique Pathogenic / Likely Pathogenic· 20 VUS of 45 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.78LOEUF
pLI 0.136
Z-score 0.57
OE 0.55 (0.181.78)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
-0.05Z-score
OE missense 1.02 (0.841.23)
76 obs / 74.7 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios
LoF OE0.55 (0.181.78)
00.351.4
Missense OE1.02 (0.841.23)
00.61.4
Synonymous OE0.87
01.21.6
LoF obs/exp: 1 / 1.8Missense obs/exp: 76 / 74.7Syn Z: 0.50
DN
0.7131th %ile
GOF
0.3689th %ile
LOF
0.3357th %ile

The highest-scoring mechanism for this gene is dominant-negative.

DNprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

45 submitted variants in ClinVar

Classification Summary

Pathogenic21
Likely Pathogenic2
VUS20
Likely Benign1
21
Pathogenic
2
Likely Pathogenic
20
VUS
1
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
21
0
21
Likely Pathogenic
0
0
2
0
2
VUS
0
14
6
0
20
Likely Benign
0
1
0
0
1
Benign
0
0
0
0
0
Total01529044

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

Protein Context — Lollipop Plot

INSL5 · 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.

Search ClinicalTrials.gov →
Clinical Literature
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