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PEPDIA-INT-067761

Silver

DALDA

Quality

Source DBs

Activities

Source refs

Literature

Patents

Integrated record

Sequence and molecular profile

YRFK

Indexed sequence4 aa

1YRFK

Length

Molecular weight

612.73 Da

Formula

C30H44N8O6

Structure type

Linear

Synthesis

Chirality

Family

Gene

Residue composition

Physicochemical profile

Hydrophobic2

Membrane affinity proxy

Polar0

Solubility proxy

Charged2

Net charge proxy +2

Aromatic2

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

612.7203 Da

Molecular formula

C30H44N8O6

Theoretical pI

9.9943

Net charge at pH 7

1.7581

GRAVY

-1.725

Instability index

-72.35

Aromaticity

0.5

Topological polar surface area

258.77 Å²

cLogP

-0.564

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

YRFK

HELM 2.0

validated simple linear

PEPTIDE1{Y.R.F.K}$$$$V2.0

Canonical SMILES

validated

N=C(N)NCCCC(NC(=O)C(N)Cc1ccc(O)cc1)C(=O)NC(Cc1ccccc1)C(=O)NC(CCCCN)C(=O)O

Isomeric SMILES

validated

N=C(N)NCCC[C@H](NC(=O)[C@@H](N)Cc1ccc(O)cc1)C(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@@H](CCCCN)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-067761,
  title = {DALDA},
  author = {{PepDiana Consortium}},
  year = {2026},
  howpublished = {PepDiana Multifunctional Peptide Database},
  url = {http://127.0.0.1:3004/peptides/PEPDIA-INT-067761},
  note = {Accessed from local PepDiana development build}
}

APA-style note

DALDA. (2026). PepDiana record PEPDIA-INT-067761. PepDiana Multifunctional Peptide Database. http://127.0.0.1:3004/peptides/PEPDIA-INT-067761

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

Integrated source-database annotations

Biological activity (3 records)

Stable record	Activity	Subtype	Value	Target	Assay method	Source
CTPDB_P067761_ACT_cppsite_0000	Cell-Penetrating	CPP	Not available in the current structured import	Unknown	Not reported by source	1770cppsite / linked
CTPDB_P067761_ACT_satpdb_0001	Cell-Penetrating	Drug Delivery	Not available in the current structured import	Unknown	Not reported by source	satpdb15895satpdb / linked
CTPDB_P067761_ACT_satpdb_0002	Cell-Penetrating	Drug Delivery	Not available in the current structured import	Unknown	Not reported by source	satpdb20859satpdb / linked

Provenance

Source database records (8)

Source-specific sequence or modification context. One or more source records use a sequence notation that differs from the canonical backbone. Open each raw sequence before interpreting stereochemistry, terminal groups, or non-standard residues.

b3pdb

b3pdb_0721

Raw sequence

YrFK

b3pdb

b3pdb_0722

Raw sequence

YrFK

b3pdb

b3pdb_0723

Raw sequence

YrFK

b3pdb

b3pdb_0724

Raw sequence

YrFK

b3pdb

b3pdb_0725

Raw sequence

YrFK

cppsite

1770

Raw sequence

YRFK

satpdb

satpdb15895

Raw sequence

YRFK

satpdb

satpdb20859

Raw sequence

YrFK

Citation trail

Literature (2 records)

-

--PMID 8048500

{"pubmed_id": "0"}

Audit surface

Raw annotations and release metadata

Integrated record last updated: 2026-04-15T00:59:13.664756+00:00

Modification summary

No structured modification annotations are available for this record.

Source metadata

[
  {
    "source_db": "b3pdb",
    "organism_name": "Unknown"
  },
  {
    "source_db": "cppsite",
    "organism_name": "Unknown"
  },
  {
    "source_db": "satpdb",
    "organism_name": "Unknown"
  }
]

Structure metadata

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