Record tools

Copy identifiers or export this single peptide record for a local research note.

PEPDIA-INT-011820

Silver

RLID 12.1 (natural AMPs; Gram-positive bacteria, prokaryotes; BWQ; unclassified)

Quality

Source DBs

Activities

Source refs

Literature

Patents

Integrated record

Sequence and molecular profile

TPPQS

Indexed sequence5 aa

1TPPQS

Length

Molecular weight

528.56 Da

Formula

C22H36N6O9

Structure type

Linear

Synthesis

Chirality

Family

Gene

Residue composition

Physicochemical profile

Hydrophobic0

Membrane affinity proxy

Polar3

Solubility proxy

Charged0

Net charge proxy +0

Aromatic0

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

528.5561 Da

Molecular formula

C22H36N6O9

Theoretical pI

5.185

Net charge at pH 7

-0.6018

GRAVY

-1.64

Instability index

172.92

Aromaticity

Topological polar surface area

245.69 Å²

cLogP

-4.0115

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

TPPQS

HELM 2.0

validated simple linear

PEPTIDE1{T.P.P.Q.S}$$$$V2.0

Canonical SMILES

validated

CC(O)C(N)C(=O)N1CCCC1C(=O)N1CCCC1C(=O)NC(CCC(N)=O)C(=O)NC(CO)C(=O)O

Isomeric SMILES

validated

C[C@@H](O)[C@H](N)C(=O)N1CCC[C@H]1C(=O)N1CCC[C@H]1C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CO)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-011820,
  title = {RLID 12.1 (natural AMPs; Gram-positive bacteria, prokaryotes; BWQ; unclassified)},
  author = {{PepDiana Consortium}},
  year = {2026},
  howpublished = {PepDiana Multifunctional Peptide Database},
  url = {http://127.0.0.1:3004/peptides/PEPDIA-INT-011820},
  note = {Accessed from local PepDiana development build}
}

APA-style note

RLID 12.1 (natural AMPs; Gram-positive bacteria, prokaryotes; BWQ; unclassified). (2026). PepDiana record PEPDIA-INT-011820. PepDiana Multifunctional Peptide Database. http://127.0.0.1:3004/peptides/PEPDIA-INT-011820

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

Integrated source-database annotations

Biological activity (5 records)

Stable record	Activity	Subtype	Value	Target	Assay method	Source
CTPDB_P011820_ACT_apd_0000	Antimicrobial	Anti-Gram+	Not available in the current structured import	Unknown	Not reported by source	AP02431apd / linked
CTPDB_P011820_ACT_apd_0001	Antimicrobial	Antifungal	Not available in the current structured import	Unknown	Not reported by source	AP02431apd / linked
CTPDB_P011820_ACT_satpdb_0002	Antimicrobial	Antibacterial	Not available in the current structured import	Unknown	Not reported by source	satpdb25540satpdb / linked
CTPDB_P011820_ACT_satpdb_0003	Antimicrobial	-	Not available in the current structured import	Unknown	Not reported by source	satpdb25540satpdb / linked
CTPDB_P011820_ACT_satpdb_0004	Antimicrobial	Antifungal	Not available in the current structured import	Unknown	Not reported by source	satpdb25540satpdb / linked

Provenance

Source database records (2)

apd

AP02431

Raw sequence

TPPQS

satpdb

satpdb25540

Raw sequence

TPPQS

Citation trail

Literature (1 records)

A Broad-Spectrum Antimicrobial Activity of Bacillus subtilis RLID 12.1.

Ramachandran R, Chalasani AG, Lal R, Roy U. 2014

ScientificWorldJournal2014PMID 25180214

Audit surface

Raw annotations and release metadata

Integrated record last updated: 2026-04-15T00:59:12.494831+00:00

Modification summary

No structured modification annotations are available for this record.

Source metadata

[
  {
    "source_db": "apd",
    "organism_name": "Unknown"
  },
  {
    "source_db": "satpdb",
    "organism_name": "Unknown"
  }
]

Structure metadata

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