Fluorescein

Fluorescein

SCHEMBL991336

O=C1OC2(c3ccc(O)cc3Oc3cc(O)ccc32)c2ccccc21.O=P(O)(O)O

nearest known ligand 0.89

Full drug profile on Sugi Atlas →

Known targets — ChEMBL curated mechanism

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

The experimentally established mechanism targets of Fluorescein. 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
FTO Q9C0B1 8/20 0.89
MAPT P10636 4/20 0.89
MEN1 O00255 4/20 0.89
KMT2A Q03164 4/20 0.89
TDP1 Q9NUW8 3/20 0.89
HTT P42858 2/20 0.89
HPGD P15428 2/20 0.89
RECQL P46063 2/20 0.89
BLM P54132 2/20 0.89
PRMT1 Q99873 2/20 0.89
ACE2 Q9BYF1 2/20 0.89
CYP2C19 P33261 1/20 0.89
SMAD3 P84022 1/20 0.89
LMNA P02545 3/20 0.63
GPR55 Q9Y2T6 2/20 0.63
ALOX12 P18054 2/20 0.63
POLB P06746 1/20 0.63
NPSR1 Q6W5P4 1/20 0.63
ALDH1A1 P00352 3/20 0.57
USP2 O75604 2/20 0.57

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
Fluorescein SCHEMBL11135740 1.00 FTO (0.89) FTOMAPTMEN1KMT2ATDP1
Fluorescein SCHEMBL106710 1.00 FTO (0.89) FTOMAPTMEN1KMT2ATDP1
Fluorescein SCHEMBL4630179 0.99 FTO (0.87) FTOMAPTMEN1KMT2ATDP1
Fluorescein SCHEMBL20740618 0.95 FTO (0.85) FTOMAPTMEN1KMT2ATDP1
Fluorescein SCHEMBL29371199 0.94 FTO (1.00) FTOMAPTMEN1KMT2ATDP1
Fluorescein SCHEMBL29388667 0.94 FTO (1.00) FTOMAPTMEN1KMT2ATDP1
Fluorescein SCHEMBL30272223 0.94 FTO (1.00) FTOMAPTMEN1KMT2ATDP1
Fluorescein SCHEMBL16533 0.94 FTO (1.00) FTOMAPTMEN1KMT2ATDP1
Fluorescein SCHEMBL3645090 0.94 FTO (1.00) FTOMAPTMEN1KMT2ATDP1
Fluorescein SCHEMBL11132218 0.94 FTO (0.79) FTOMAPTMEN1KMT2ATDP1

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

PatentTitleAssigneePublishedPriorityFilingCountryStatus
EP-2676140-A2 SUBSTRATES AND METHODS FOR STAINING LIVE CELLS Life Technologies Corporation (US) 2013-12-25 EP claimed
US-20130323770-A1 SUBSTRATES AND METHODS FOR STAINING LIVE STEM CELLS Life Technologies Corporation (US) 2013-12-05 US claimed
WO-2012112609-A2 SUBSTRATES AND METHODS FOR STAINING LIVE CELLS Life Technologies Corporation (US) 2012-08-23 WO claimed
CN-101384729-A Solid phase sequencing AMERSHAM BIOSCIENCES CORP (US) 2009-03-11 CN claimed
US-5830666-A USING A FLUORESCEIN DERIVATIVE PHOSPHATE ESTER AISIN SEIKI KABUSHIKI KAISHA (JP) 1998-11-03 US claimed
US-12551555-B2 Compositions and methods for potentiating immune activity KUMQUAT BIOSCIENCES INC. (US) 2026-02-17 US disclosed
US-12385902-B2 Methods for generating and screening compartmentalised peptide libraries UNIVERSITY OF SOUTHAMPTON (GB) 2025-08-12 US disclosed
US-20250195438-A1 LYOPHILIZED MESENCHYMAL STEM CELL DERIVED SECRETOME AND USES THEREOF COMBANGIO, INC. 2025-06-19 US disclosed
US-12186430-B2 Lyophilized mesenchymal stem cell derived secretome and uses thereof COMBANGIO, INC. (US) 2025-01-07 US disclosed
CN-118759190-A Chemiluminescent immunoassay CLIA kit for measuring TPS and method for measuring TPS 泰州泽成生物技术有限公司 2024-10-11 CN disclosed
US-12012632-B2 Methods for obtaining and correcting biological sequence information CYGNUS BIOSCIENCES (BEIJING) CO., LTD (CN) 2024-06-18 US disclosed
US-20240166641-A1 HETEROCYCLES AND USES THEREOF KUMQUAT BIOSCIENCES INC. 2024-05-23 US disclosed
EP-0424465-A4 PREPARATION AND USE OF FLUORESCENT BENZOTHIAZOLE DERIVATIVES 1991-07-03 EP disclosed
EP-0424465-A1 PREPARATION AND USE OF FLUORESCENT BENZOTHIAZOLE DERIVATIVES. JBL SCIENT INC (US) 1991-05-02 EP disclosed
WO-1990000618-A1 PREPARATION AND USE OF FLUORESCENT BENZOTHIAZOLE DERIVATIVES JBL SCIENTIFIC, INC. (US) 1990-01-25 WO disclosed
EP-0070832-A4 MICROENCAPSULATED FLUORESCER COMPOSITION, TEST KIT AND SYSTEM FOR IMMUNOASSAY. ELECTRO NUCLEONICS (US) 1983-06-17 EP disclosed
EP-0070832-A1 MICROENCAPSULATED FLUORESCER COMPOSITION, TEST KIT AND SYSTEM FOR IMMUNOASSAY ELECTRO-NUCLEONICS, INC. (US) 1983-02-09 EP disclosed
US-4372745-A QUALITATIVE AND QUANTITATIVE ANALYSIS ELECTRO-NUCLEONICS, INC. (US) 1983-02-08 US disclosed
WO-1982002772-A1 MICROENCAPSULATED FLUORESCER COMPOSITION,TEST KIT AND SYSTEM FOR IMMUNOASSAY ELECTRO NUCLEONICS (US) 1982-08-19 WO disclosed
WO-1981001883-A1 CHEMICAL LUMINESCENCE AMPLIFICATION SUBSTRATE SYSTEM FOR IMMUNOCHEMISTRY ELECTRO NUCLEONICS (US) 1981-07-09 WO disclosed

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

For each of this compound's patents that has machine-readable text (2 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-12551555-B2 Compositions and methods for potentiating immune activity PTPRCAP, PTPN2, PTPRC FTO 1625/4885MAPT 2945/4885MEN1 4405/4885
US-20240166641-A1 HETEROCYCLES AND USES THEREOF KRAS, HRAS, TP53 FTO 4764/4885MAPT 3935/4885MEN1 725/4885

“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.