RLN1

Chr 9

relaxin 1

Also known as: H1, H1RLX, RLXH1, bA12D24.3.1, bA12D24.3.2

The protein encoded by this gene is relaxin, a hormone that acts with estrogen to dilate the birth canal by remodeling connective tissues during pregnancy, promoting growth of pubic ligaments and ripening of the cervix. No disease associations with RLN1 mutations have been established in the provided data. The gene shows low constraint to loss-of-function variation (pLI = 0.007, LOEUF = 1.86), suggesting tolerance to inactivating variants.

OMIMResearchSummary from RefSeq, UniProt
DNmechanismLOEUF 1.85
Clinical SummaryRLN1
Population Constraint (gnomAD)
Low constraint (pLI 0.01) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.85LOEUF
pLI 0.007
Z-score 0.01
OE 0.99 (0.431.85)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
-1.64Z-score
OE missense 1.46 (1.281.68)
146 obs / 99.9 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios
LoF OE0.99 (0.431.85)
00.351.4
Missense OE1.46 (1.281.68)
00.61.4
Synonymous OE1.17
01.21.6
LoF obs/exp: 3 / 3.0Missense obs/exp: 146 / 99.9Syn Z: -0.84
DN
0.85top 5%
GOF
0.4874th %ile
LOF
0.1796th %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

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

RLN1 · protein map & ClinVar variants

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

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Clinical Literature
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