Neurotensin receptor
Family of proteins
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Agonists
- Peptide
- Beta-lactotensin (NTS2)
- JMV-449
- Neurotensin
- Neuromedin N (NTS1 selective)
- PD-149,163 (NTS1 selective, reduced amide bond 8-13 fragment of neurotensin)
- Non-peptide
- NTS1 full agonist SRI-9829
- Partial agonists derived from SR-48692
Antagonists
- Levocabastine (NTS2 selective, also H1 histamine antagonist)
- SR-48692 (NTS1 selective)
- SR-142948 (unselective, CAS# 184162-64-9)
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Biophysical investigation
Unusually for GPCRs, NTS1 can be expressed in an active form in the bacteria E. coli. It can be purified and analysed in vitro and has been analysed by a number of biophysical techniques such as surface plasmon resonance, FRET and cryo-electron microscopy. Furthermore, high-resolution crystal structures of NTS1 have been determined in complex with the peptide full agonist NT8-13, the non-peptide full agonist SRI-9829, the partial agonist RTI-3a, and the antagonists / inverse agonists SR-48692 and SR-142948, as well as in the ligand-free apo state
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