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BioAssay: AID 35685

Inhibition of [3H]Leu-enkephalin binding to aminopeptidase (ND)

Peptide retro-inverso modification was applied to the complete hydroxamate inhibitors of the three zinc metallopeptidases (neutral endopeptidase 24-11 (NEP, EC 3.4.24.11), aminopeptidase N (APN, EC 3.4.11.2), and a dipeptidylaminopeptidase (DAP) involved in the in vitro enkephalin degradation by brain tissues. Compounds corresponding to the general formula RN(OH)CO(CH2)nCH(CH2Ph)NHCOCH(R')COOH (n more ..
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 Tested Compounds
 Tested Compounds
All(1)
 
 
Inconclusive(1)
 
 
 Tested Substances
 Tested Substances
All(1)
 
 
Inconclusive(1)
 
 
 Related BioAssays
 Related BioAssays
AID: 35685
Data Source: ChEMBL (32814)
Depositor Category: Literature, Extracted
BioAssay Version:
Deposit Date: 2010-05-21
Modify Date: 2013-07-15

Data Table ( Complete ):           All
Tested Compound:
Description:
Title: Retro-inverso concept applied to the complete inhibitors of enkephalin-degrading enzymes.

Abstract: Peptide retro-inverso modification was applied to the complete hydroxamate inhibitors of the three zinc metallopeptidases (neutral endopeptidase 24-11 (NEP, EC 3.4.24.11), aminopeptidase N (APN, EC 3.4.11.2), and a dipeptidylaminopeptidase (DAP) involved in the in vitro enkephalin degradation by brain tissues. Compounds corresponding to the general formula RN(OH)CO(CH2)nCH(CH2Ph)NHCOCH(R')COOH (n = 0, 1) were synthesized. In the first series of inhibitors (n = 0), the "retro-inverso" modification induced a large decrease in inhibitory potency for NEP as compared to that of the parent compounds. In contrast, the presence of a methylene group between the hydroxamate and CH alpha in the second series (n = 1) led to derivatives with inhibitory potencies in the nanomolar range, similar to their analogues with a natural amide bond. On the other hand, the retro-inverso modification led to a slight improvement in the inhibition of DAP and APN, in the first series of inhibitors, while the inverse result occurred in the second series. Thus, compounds containing an alpha-amino acid moiety in P'1 position behave as weak inhibitors of the three enzymes, with IC50 values in the micromolar range, and compounds bearing a beta-amino acid moiety in the same position are more specific than the parent compounds for NEP inhibition.
(PMID: 2900898)
Comment
Putative Target:

ChEMBL Target ID: 22226
Target Type: UNCHECKED
Pref Name: Unchecked
Confidence: Default value - Target unknown or has yet to be assigned
Relationship Type: Default value - Target has yet to be curated
Categorized Comment
ChEMBL Assay Type: Binding

ChEMBL Assay Data Source: Scientific Literature

Result Definitions
TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
1IC50 activity commentIC50 activity commentString
2IC50 standard flagIC50 standard flagInteger
3IC50 qualifierIC50 qualifierString
4IC50 published valueIC50 published valueFloatnM
5IC50 standard valueIC50 standard valueFloat

Data Table (Concise)
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