Enzymes
| UniProtKB help_outline | 3,074 proteins |
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- Name help_outline neurotensin Identifier CHEBI:147362 Charge 1 Formula C78H122N21O20 InChIKeyhelp_outline PCJGZPGTCUMMOT-ISULXFBGSA-O SMILEShelp_outline [C@@H]1(N(C([C@@H](NC([C@@H](NC([C@@H](NC([C@H](CC2=CC=C(O)C=C2)NC([C@@H](NC([C@H]3NC(=O)CC3)=O)CC(C)C)=O)=O)CCC([O-])=O)=O)CC(N)=O)=O)CCCC[NH3+])=O)CCC1)C(N[C@H](C(N[C@H](C(N4[C@H](C(N[C@@H](CC=5C=CC(=CC5)O)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CC(C)C)C(=O)[O-])=O)CCC4)=O)CCCNC(N)=[NH2+])=O)CCCNC(N)=[NH2+])=O 2D coordinates Mol file for the small molecule Search links Involved in 3 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H2O Identifier CHEBI:15377 (CAS: 7732-18-5) help_outline Charge 0 Formula H2O InChIKeyhelp_outline XLYOFNOQVPJJNP-UHFFFAOYSA-N SMILEShelp_outline [H]O[H] 2D coordinates Mol file for the small molecule Search links Involved in 6,485 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline neurotensin(1-11) Identifier CHEBI:190704 Charge 1 Formula C66H100N19O18 InChIKeyhelp_outline CUQGKXAMPVUPEU-TZIGXLGFSA-O SMILEShelp_outline [C@@H]1(N(C([C@@H](NC([C@@H](NC([C@@H](NC([C@H](CC2=CC=C(O)C=C2)NC([C@@H](NC([C@H]3NC(=O)CC3)=O)CC(C)C)=O)=O)CCC([O-])=O)=O)CC(N)=O)=O)CCCC[NH3+])=O)CCC1)C(N[C@H](C(N[C@H](C(N4[C@H](C(N[C@@H](CC=5C=CC(=CC5)O)C(=O)[O-])=O)CCC4)=O)CCCNC(N)=[NH2+])=O)CCCNC(N)=[NH2+])=O 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline L-isoleucyl-L-leucine Identifier CHEBI:190706 Charge 0 Formula C12H24N2O3 InChIKeyhelp_outline JWBXCSQZLLIOCI-GUBZILKMSA-N SMILEShelp_outline CC[C@H](C)[C@H]([NH3+])C(=O)N[C@@H](CC(C)C)C([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:71475 | RHEA:71476 | RHEA:71477 | RHEA:71478 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
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Publications
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Hydrolysis of substance p and neurotensin by converting enzyme and neutral endopeptidase.
Skidgel R.A., Engelbrecht S., Johnson A.R., Erdoes E.G.
Angiotensin I converting enzyme (ACE) and neutral endopeptidase ("enkephalinase"; NEP), were purified to homogeneity from human kidney. NEP cleaved substance P (SP) at Gln6-Phe7,-Phe8, and Gly9-Leu10 and neurotensin (NT) at Pro10-Tyr11 and Tyr11-Ile12. NEP hydrolyzed 0.1 mM SP, NT and their C-term ... >> More
Angiotensin I converting enzyme (ACE) and neutral endopeptidase ("enkephalinase"; NEP), were purified to homogeneity from human kidney. NEP cleaved substance P (SP) at Gln6-Phe7,-Phe8, and Gly9-Leu10 and neurotensin (NT) at Pro10-Tyr11 and Tyr11-Ile12. NEP hydrolyzed 0.1 mM SP, NT and their C-terminal fragments at the following rates (mumol/min/mg): SP1-11 = 7.8, SP4-11 = 11.7, SP5-11 = 15.4, SP6-11 = 15.6, SP8-11 = 6.7, NT1-13 = 2.9, and NT8-13 = 4.0. Purified ACE rapidly inactivated SP as measured in bioassay. HPLC analysis showed that ACE cleaved SP at Phe8-Gly9 and Gly9-Leu10 to release C-terminal tri- and dipeptide (ratio = 4:1). The hydrolysis was Cl-dependent and inhibited by captopril. ACE released mainly C-terminal tripeptide from SP methyl ester, but only dipeptide from SP free acid. Modification of arginine residues in ACE with cyclohexanedione or butanedione similarly inhibited hydrolysis of SP, bradykinin and Bz-Gly-Phe-Arg (80-93%) indicating an active site arginine is required for hydrolysis of SP. ACE hydrolyzed NT at Tyr11-Ile12 to release Ile12-Leu13. SP, NT and their derivatives (0.1 mM) were cleaved by ACE at the following rates (mumol/min/mg): SP1-11 = 1.2, SP methyl ester = 0.7, SP free acid = 8.5, SP4-11 = 2.4, SP5-11 = 0.9, SP6-11 = 1.4, SP8-11 = 0, NT1-13 = 0.2, and NT8-13 = 1.3. Peptide substrates were used as inhibitors of ACE (substrate = FA-Phe-Gly-Gly) and NEP (substrate = Leu5-enkephalin).(ABSTRACT TRUNCATED AT 250 WORDS) << Less
Peptides 5:769-776(1984) [PubMed] [EuropePMC]
This publication is cited by 5 other entries.