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PEPDIA-INT-036682

Gold

Angiotensin I-converting enzyme inhibitor 1, SPP

Quality

Source DBs

Activities

Source refs

Literature

Patents

Integrated record

Sequence and molecular profile

MLPAY

Indexed sequence5 aa

1MLPAY

Length

Molecular weight

593.75 Da

Formula

C28H43N5O7S

Structure type

Linear

Synthesis

Chirality

Family

Gene

Residue composition

Physicochemical profile

Hydrophobic4

Membrane affinity proxy

Polar0

Solubility proxy

Charged0

Net charge proxy +0

Aromatic1

Binding interaction proxy

Versioned scientific descriptors

Physicochemical properties and standard representations

calculated sequence and structure

Reported properties

Legacy compatibility fields are materialized from the versioned PepDiana computed release; no separate source-reported property is available.

Computed properties

physchem-20260620

Molecular weight

593.7352 Da

Molecular formula

C28H43N5O7S

Theoretical pI

5.2748

Net charge at pH 7

-0.5006

GRAVY

0.92

Instability index

85.04

Aromaticity

0.2

Topological polar surface area

191.16 Å²

cLogP

0.6111

Hydrogen-bond donors

Hydrogen-bond acceptors

Rotatable bonds

Method: PepDiana sequence/structure descriptor pipeline

Tool: Biopython+RDKit · Biopython 1.85; RDKit 2024.09.6

Calculated: 2026-06-20T11:01:38.358971+00:00

Assumptions: ph=7; termini=free N-terminus and free C-terminus for simple linear peptides; stereochemistry=standard L-amino acids; smiles_length_limit=200

Sequence representations

representations-20260620 · RDKit 2024.09.6

ProForma 2.0

validated simple linear

MLPAY

HELM 2.0

validated simple linear

PEPTIDE1{M.L.P.A.Y}$$$$V2.0

Canonical SMILES

validated

CSCCC(N)C(=O)NC(CC(C)C)C(=O)N1CCCC1C(=O)NC(C)C(=O)NC(Cc1ccc(O)cc1)C(=O)O

Isomeric SMILES

validated

CSCC[C@H](N)C(=O)N[C@@H](CC(C)C)C(=O)N1CCC[C@H]1C(=O)N[C@@H](C)C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)O

Follow-up research

External analysis tools

Run BLASTPSearch similar protein or peptide sequences at NCBI.Search UniProtLook for related UniProtKB entries using the sequence.Search PubMedFind literature context for this peptide record.Search PubChemOpen chemistry search with the canonical SMILES string.

Links open third-party resources with the current PepDiana sequence, record name, or chemistry notation as the initial query.

Research workflow

Citation and local history

BibTeX

@misc{PEPDIA-INT-036682,
  title = {Angiotensin I-converting enzyme inhibitor 1, SPP},
  author = {{PepDiana Consortium}},
  year = {2026},
  howpublished = {PepDiana Multifunctional Peptide Database},
  url = {http://127.0.0.1:3004/peptides/PEPDIA-INT-036682},
  note = {Accessed from local PepDiana development build}
}

APA-style note

Angiotensin I-converting enzyme inhibitor 1, SPP. (2026). PepDiana record PEPDIA-INT-036682. PepDiana Multifunctional Peptide Database. http://127.0.0.1:3004/peptides/PEPDIA-INT-036682

This record is saved to local recent-view history so it can reappear on the peptide browser page.

Integrated source-database annotations

Biological activity (8 records)

Stable record	Activity	Subtype	Value	Target	Assay method	Source
CTPDB_P036682_ACT_ahtpdb_0001	Metabolic/Cardiovascular	ACE Inhibitor	1.58 µM	Unknown	Friedland and Silverstein (1976)	1884ahtpdb / linked
CTPDB_P036682_ACT_ahtpdb_0002	Metabolic/Cardiovascular	ACE Inhibitor	0.33 µM	Unknown	Friedland and Silverstein (1976)	2770ahtpdb / linked
CTPDB_P036682_ACT_ahtpdb_0000	Metabolic/Cardiovascular	ACE Inhibitor	1.58 µM	Unknown	Friedland and Silverstein (1976)	4635ahtpdb / linked
CTPDB_P036682_ACT_ahtpdb_0003	Metabolic/Cardiovascular	ACE Inhibitor	1.58 µM	Unknown	Not reported by source	5330ahtpdb / linked
CTPDB_P036682_ACT_ahtpdb_0004	Metabolic/Cardiovascular	ACE Inhibitor	1.58 µM	Unknown	Friedland and Silverstein (1976)	6191ahtpdb / linked
CTPDB_P036682_ACT_plantpepdb_0005	Enzyme Inhibitor	General Enzyme Inhibitor	Not available in the current structured import	Unknown	Not reported by source	PPepDB_2981plantpepdb / linked
CTPDB_P036682_ACT_plantpepdb_0006	Metabolic/Cardiovascular	Antihypertensive	Not available for this observation	Unknown	Not reported by source	PPepDB_2981plantpepdb / linked
CTPDB_P036682_ACT_satpdb_0007	Metabolic/Cardiovascular	Antihypertensive	Not available for this observation	Unknown	Not reported by source	satpdb27733satpdb / linked

Provenance

Source database records (7)

ahtpdb

4635

Raw sequence

MLPAY

ahtpdb

2770

Raw sequence

MLPAY

ahtpdb

1884

Raw sequence

MLPAY

ahtpdb

6191

Raw sequence

MLPAY

ahtpdb

5330

Raw sequence

MLPAY

plantpepdb

PPepDB_2981

Raw sequence

MLPAY

satpdb

satpdb27733

Raw sequence

MLPAY

Citation trail

Literature (5 records)

Rational design of angiotensin-I-converting enzyme inhibitory peptides by integrating in silico modeling and an in vitro assay.

Jing T et al.

ChemMedChem. 2013 Jul;8(7):1057-66.2013PMID 23740817

ISOLATION AND CHARACTERIZATION OF PEPTIDES WITH ANTIHYPERTENSIVE ACTIVITY IN FOODSTUFFS.

Puchalska P1, Alegre ML, López MC.

Crit Rev Food Sci Nutr. 2013 Sep 2.2013PMID 24915368

Vegetable foods: A cheap source of proteins and peptides with antihypertensive, antioxidant, and other less occurrence bioactivities.

M C García, P Puchalska, C Esteve, M L Marina

Talanta 03/2013; 106C:328-349.2013PMID 23598136

Antihypertensive effect of angiotensin I-converting enzyme inhibitory peptides from a sesame protein hydrolysate in spontaneously hypertensive rats

Nakano, D. et al.,

Biosci Biotechnol Biochem 70 p.1118-262006PMID 16717411

Integration of QSAR modelling and QM/MM analysis to investigate functional food peptides with antihypertensive activity

Jin Tan et al.

Molecular Simulation Volume 39, Issue 12, 20132013

Audit surface

Raw annotations and release metadata

Integrated record last updated: 2026-04-15T00:59:10.991164+00:00

Modification summary

No structured modification annotations are available for this record.

Source metadata

[
  {
    "source_db": "ahtpdb",
    "organism_name": "Unknown"
  },
  {
    "source_db": "plantpepdb",
    "organism_name": "Unknown"
  },
  {
    "source_db": "satpdb",
    "organism_name": "Unknown"
  }
]

Structure metadata

{
  "source_db": "satpdb",
  "dssp_states": "CCSCC"
}