L-Citrulline

L-Citrulline

SCHEMBL319676

NC(=O)NCCC[C@H](N)C(=O)O.O=C(O)CC(O)C(=O)O

nearest known ligand 0.48

Full drug profile on Sugi Atlas →

Known targets — ChEMBL curated mechanism

CACNA1CCACNA1DCACNA1FCACNA1SDRD2HTR1BHTR1DHTR1F

The experimentally established mechanism targets of L-Citrulline. The predicted profile below is derived independently by chemical similarity — agreement is a validation signal, a miss is honest.

Predicted protein targets (top 20)

geneUniProtsupporting neighboursconfidence
OTC P00480 1/20 0.48
SMN1; SMN2 Q16637 1/20 0.47
DDAH1 O94760 3/20 0.45
GSR P00390 2/20 0.41
NOS2 P35228 4/20 0.40
CYP1A2 P05177 3/20 0.40
CYP2C19 P33261 2/20 0.40
TSHR P16473 2/20 0.40
GLA P06280 1/20 0.40
NFKB1 P19838 1/20 0.40
APEX1 P27695 1/20 0.40
GRM8 O00222 1/20 0.39
GRM6 O15303 1/20 0.39
GRIN2D O15399 1/20 0.39
GRIN3B O60391 1/20 0.39
GRIK1 P39086 1/20 0.39
GRM5 P41594 1/20 0.39
GRIA1 P42261 1/20 0.39
GRIA2 P42262 1/20 0.39
GRIA3 P42263 1/20 0.39

Click a target to see other patent compounds predicted against it — the reverse direction, in place.

Similar compounds — the chemically nearest patent molecules

Nearest neighbours by Morgan-fingerprint cosine across the patent-compound collection, with each neighbour's top predicted target and the predicted targets it shares with this molecule.

Compoundsimilaritytop predictedshared targets
L-Citrulline SCHEMBL31672873 1.00 OTC (0.48) OTCSMN1; SMN2DDAH1GSRNOS2
L-Citrulline SCHEMBL319675 1.00 OTC (0.48) OTCSMN1; SMN2DDAH1GSRNOS2
L-Citrulline SCHEMBL13276387 0.98 OTC (0.47) OTCSMN1; SMN2DDAH1GSRNOS2
L-Citrulline SCHEMBL9056462 0.89 OTC (0.51) OTCDDAH1GSRNOS2CYP1A2
L-Citrulline SCHEMBL9056465 0.89 OTC (0.51) OTCDDAH1GSRNOS2CYP1A2
Arginine SCHEMBL30193366 0.88 OTC (0.46) OTCSMN1; SMN2DDAH1GSRNOS2
Arginine SCHEMBL423591 0.88 OTC (0.46) OTCSMN1; SMN2DDAH1GSRNOS2
Arginine SCHEMBL21827041 0.88 OTC (0.46) OTCSMN1; SMN2DDAH1GSRNOS2
Arginine SCHEMBL423592 0.88 OTC (0.46) OTCSMN1; SMN2DDAH1GSRNOS2
L-Citrulline SCHEMBL215403 0.87 OTC (0.59) OTCDDAH1GSRNOS2CYP1A2

Similarity is cosine over the 2,048-bit Morgan fingerprint (≈ Tanimoto). Identical fingerprints score 1.00.

Patent provenance — the patents this molecule appears in, and who filed them

Claimed or disclosed in 426 patents — showing the first 20. claimed = in the patent's claims; disclosed = body only.

PatentTitleAssigneePublishedPriorityFilingCountryStatus
WO-2026107233-A2 COMPOSITIONS, SYSTEMS, AND METHODS FOR INCREASING NITRIC OXIDE IN A SUBJECT LifeActive, Inc. (US) 2026-05-21 WO claimed
CN-122056386-A Moisture absorption resistant slow release microcapsule powder and preparation method and application thereof 大连医诺生物股份有限公司 2026-05-19 CN claimed
CN-122030612-A Shear-resistant slow-release microcapsule powder and preparation method and application thereof 大连医诺生物股份有限公司 2026-05-15 CN claimed
US-20260130850-A1 TRANSDERMAL DELIVERY FORMULATIONS AND METHODS FOR THE MANUFACTURE THEREOF LIFEACTIVE INC (US) 2026-05-14 US claimed
EP-4724101-A1 TRANSDERMAL DELIVERY FORMULATIONS Lifeactive, Inc. (US) 2026-04-15 EP claimed
US-20260090981-A1 TRANSDERMAL DELIVERY FORMULATIONS LifeActive, Inc. (US) 2026-04-02 US claimed
US-20260090982-A1 TRANSDERMAL DELIVERY FORMULATIONS LifeActive, Inc. (US) 2026-04-02 US claimed
US-20250387319-A1 Compositions and methods to reduce wrinkles, sagging skin, aging skin, spots, under eye puffiness and dark circles, and dry skin. WU JOHN HAN (US) 2025-12-25 US claimed
EP-3639666-B1 USE OF LECITHINS AS A BIOCIDE AGAINST ARTHROPODS MARTIN BRETONES GERMAN (ES) 2025-12-17 EP claimed
US-20250223239-A1 FOLIAR FEEDING FORMULATION AND METHODS OF USE TYREE'S GREEN LLC 2025-07-10 US claimed
US-20070248648-A1 High protein, fatigue reducing powder NEXT PROTEINS, INC. 2007-10-25 US claimed
WO-2007106731-A2 PROTEIN DRINK AND METHOD OF MAKING SAME NEXT PROTEINS, INC. (US) 2007-09-20 WO claimed
US-20070196511-A1 Nutritional composition for promoting muscle performance and acting as hydrogen (H+) blocker APLODAN FORMULATIONS LTD. (CA) 2007-08-23 US claimed
US-20070154614-A1 PROTEIN BEVERAGE AND METHOD OF MAKING THE SAME DAVINAS, LLC 2007-07-05 US claimed
US-20070148307-A1 PROTEIN BEVERAGE AND PROTEIN BEVERAGE CONCENTRATE AND METHODS OF MAKING THE SAME DAVINAS, LLC 2007-06-28 US claimed
US-20070148305-A1 PROTEIN BEVERAGE AND METHOD OF MAKING THE SAME DAVINAS, LLC 2007-06-28 US claimed
WO-2007027213-A1 HIGH ENERGY CARBONATED PROTEIN DRINK AND METHOD OF MAKING NEXT PROTEINS, INC. (US) 2007-03-08 WO claimed
US-20060147602-A1 High energy carbonated protein drink and method of making NEXT PROTEINS, INC. 2006-07-06 US claimed
US-20060083793-A1 Nutritional composition for promoting muscle performance and acting as hydrogen (H+) blocker EVERSLIM FORMULATIONS LTD. (CA) 2006-04-20 US claimed
WO-2006034586-A1 NUTRITIONAL COMPOSITION FOR PROMOTING MUSCLE PERFORMANCE AND ACTING AS HYDROGEN (H+) BLOCKER APLODAN FORMULATIONS LTD. (CA) 2006-04-06 WO claimed

Patent text — is the patent's own abstract consistent with the prediction?

For each of this compound's patents that has machine-readable text (6 of them — usually the abstract, not the full specification), we ask MedCPT which protein the text reads most about, and where the chemistry-predicted target lands among 4885 human targets. A high rank means the patent's own wording is consistent with the prediction — a weak, independent signal, not proof of activity.

PatentTitleText reads most aboutPredicted target · text-rank
US-20060083793-A1 Nutritional composition for promoting muscle performance and acting as hydrogen (H+) blocker TNNC1, PYGM, MB OTC 49/4885SMN1; SMN2 1491/4885DDAH1 1116/4885
US-20260130850-A1 TRANSDERMAL DELIVERY FORMULATIONS AND METHODS FOR THE MANUFACTURE THEREOF CS, SUCNR1, SLC27A1 OTC 5/4885SMN1; SMN2 856/4885DDAH1 3301/4885
US-20260090981-A1 TRANSDERMAL DELIVERY FORMULATIONS CS, OAT, CKMT1A; CKMT1B OTC 54/4885SMN1; SMN2 1078/4885DDAH1 4390/4885
US-20260090982-A1 TRANSDERMAL DELIVERY FORMULATIONS CS, OAT, CKMT1A; CKMT1B OTC 54/4885SMN1; SMN2 1078/4885DDAH1 4390/4885
US-20250387319-A1 Compositions and methods to reduce wrinkles, sagging skin, aging skin, spots, under eye puffiness and dark circles, and dry skin. ARG2, ARG1, CUTA OTC 100/4885SMN1; SMN2 3795/4885DDAH1 2413/4885
US-20070196511-A1 Nutritional composition for promoting muscle performance and acting as hydrogen (H+) blocker TNNC1, PYGM, MB OTC 49/4885SMN1; SMN2 1491/4885DDAH1 1116/4885

“Text reads most about” is the patent abstract's nearest protein in MedCPT space (background-debiased). Only ~1.4% of patents have machine-readable text, so most compounds won't have this panel.