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PEPDIA-INT-031590

Silver

FLAK-120B

Quality

Source DBs

Activities

Source refs

Literature

Patents

Integrated record

Sequence and molecular profile

FALA

Indexed sequence4 aa

1FALA

Length

Molecular weight

420.51 Da

Formula

C21H32N4O5

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

420.5025 Da

Molecular formula

C21H32N4O5

Theoretical pI

5.525

Net charge at pH 7

-0.2399

GRAVY

2.55

Instability index

7.5

Aromaticity

0.25

Topological polar surface area

150.62 Å²

cLogP

0.1813

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

FALA

HELM 2.0

validated simple linear

PEPTIDE1{F.A.L.A}$$$$V2.0

Canonical SMILES

validated

CC(C)CC(NC(=O)C(C)NC(=O)C(N)Cc1ccccc1)C(=O)NC(C)C(=O)O

Isomeric SMILES

validated

CC(C)C[C@H](NC(=O)[C@H](C)NC(=O)[C@@H](N)Cc1ccccc1)C(=O)N[C@@H](C)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-031590,
  title = {FLAK-120B},
  author = {{PepDiana Consortium}},
  year = {2026},
  howpublished = {PepDiana Multifunctional Peptide Database},
  url = {http://127.0.0.1:3004/peptides/PEPDIA-INT-031590},
  note = {Accessed from local PepDiana development build}
}

APA-style note

FLAK-120B. (2026). PepDiana record PEPDIA-INT-031590. PepDiana Multifunctional Peptide Database. http://127.0.0.1:3004/peptides/PEPDIA-INT-031590

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

Integrated source-database annotations

Biological activity (10 records)

Stable record	Activity	Subtype	Value	Target	Assay method	Source
CTPDB_P031590_ACT_cancerppd_0000	Anticancer	Anticancer	Not available in the current structured import	Unknown	MTT/MTS assay	1907cancerppd / linked
CTPDB_P031590_ACT_cancerppd_0001	Anticancer	Anticancer	Not available in the current structured import	Unknown	MTT/MTS assay	2059cancerppd / linked
CTPDB_P031590_ACT_cancerppd_0002	Anticancer	Anticancer	Not available in the current structured import	Unknown	MTT/MTS assay	2211cancerppd / linked
CTPDB_P031590_ACT_cancerppd_0003	Anticancer	Anticancer	Not available in the current structured import	Unknown	MTT/MTS assay	2363cancerppd / linked
CTPDB_P031590_ACT_cancerppd_0004	Anticancer	Anticancer	Not available in the current structured import	Unknown	MTT/MTS assay	2516cancerppd / linked
CTPDB_P031590_ACT_cancerppd_0005	Anticancer	Anticancer	Not available in the current structured import	Unknown	MTT/MTS assay	2659cancerppd / linked
CTPDB_P031590_ACT_cancerppd_0006	Anticancer	Anticancer	Not available in the current structured import	Unknown	MTT/MTS assay	2802cancerppd / linked
CTPDB_P031590_ACT_dramp_0007	Antimicrobial	-	Not available in the current structured import	Unknown	Not reported by source	DRAMP32595dramp / linked
CTPDB_P031590_ACT_dramp_0008	Anticancer	-	Not available in the current structured import	Unknown	Not reported by source	DRAMP32595dramp / linked
CTPDB_P031590_ACT_satpdb_0009	Anticancer	-	Not available in the current structured import	Unknown	Not reported by source	satpdb21362satpdb / linked

Provenance

Source database records (9)

cancerppd

1907

Raw sequence

FALA

cancerppd

2059

Raw sequence

FALA

cancerppd

2211

Raw sequence

FALA

cancerppd

2363

Raw sequence

FALA

cancerppd

2516

Raw sequence

FALA

cancerppd

2659

Raw sequence

FALA

cancerppd

2802

Raw sequence

FALA

dramp

DRAMP32595

Raw sequence

FALA

satpdb

satpdb21362

Raw sequence

FALA

Citation trail

Literature (1 records)

{"pubmed_id": "[None](http://www.ncbi.nlm.nih.gov/pubmed/None)", "year": "2005"}

Audit surface

Raw annotations and release metadata

Integrated record last updated: 2026-04-15T00:59:16.851167+00:00

Modification summary

No structured modification annotations are available for this record.

Source metadata

[
  {
    "source_db": "cancerppd",
    "organism_name": "Unknown"
  },
  {
    "source_db": "dramp",
    "organism_name": "Unknown"
  },
  {
    "source_db": "satpdb",
    "organism_name": "Unknown"
  }
]

Structure metadata

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