Structure

Physi-Chem Properties

Molecular Weight:  389.26
Volume:  381.774
LogP:  -1.813
LogD:  -1.543
LogS:  0.144
# Rotatable Bonds:  8
TPSA:  158.32
# H-Bond Aceptor:  10
# H-Bond Donor:  8
# Rings:  2
# Heavy Atoms:  10

MedChem Properties

QED Drug-Likeness Score:  0.313
Synthetic Accessibility Score:  4.815
Fsp3:  0.941
Lipinski Rule-of-5:  Accepted
Pfizer Rule:  Accepted
GSK Rule:  Accepted
BMS Rule:  1
Golden Triangle Rule:  Accepted
Chelating Alert:  0
PAINS Alert:  0

ADMET Properties (ADMETlab2.0)

ADMET: Absorption

Caco-2 Permeability:  -6.211
MDCK Permeability:  2.9217684641480446e-05
Pgp-inhibitor:  0.001
Pgp-substrate:  0.841
Human Intestinal Absorption (HIA):  0.982
20% Bioavailability (F20%):  0.987
30% Bioavailability (F30%):  0.994

ADMET: Distribution

Blood-Brain-Barrier Penetration (BBB):  0.142
Plasma Protein Binding (PPB):  13.750146865844727%
Volume Distribution (VD):  0.692
Pgp-substrate:  83.50933837890625%

ADMET: Metabolism

CYP1A2-inhibitor:  0.004
CYP1A2-substrate:  0.019
CYP2C19-inhibitor:  0.016
CYP2C19-substrate:  0.092
CYP2C9-inhibitor:  0.001
CYP2C9-substrate:  0.005
CYP2D6-inhibitor:  0.004
CYP2D6-substrate:  0.168
CYP3A4-inhibitor:  0.008
CYP3A4-substrate:  0.15

ADMET: Excretion

Clearance (CL):  1.384
Half-life (T1/2):  0.801

ADMET: Toxicity

hERG Blockers:  0.106
Human Hepatotoxicity (H-HT):  0.312
Drug-inuced Liver Injury (DILI):  0.064
AMES Toxicity:  0.077
Rat Oral Acute Toxicity:  0.117
Maximum Recommended Daily Dose:  0.711
Skin Sensitization:  0.816
Carcinogencity:  0.047
Eye Corrosion:  0.025
Eye Irritation:  0.043
Respiratory Toxicity:  0.903

Download Data

Data Type Select
General Info & Identifiers & Properties  
Structure MOL file  
Source Organisms  
Biological Activities  
Similar NPs/Drugs  

  Natural Product: NPC48960

Natural Product ID:  NPC48960
Common Name*:   istamycin a
IUPAC Name:   n.a.
Synonyms:  
Standard InCHIKey:  NEFDRWXEVITQMN-JWYRXTSNSA-N
Standard InCHI:  InChI=1S/C17H35N5O5/c1-21-8-9-4-5-10(19)17(26-9)27-16-11(20)6-12(25-3)14(15(16)24)22(2)13(23)7-18/h9-12,14-17,21,24H,4-8,18-20H2,1-3H3/t9-,10+,11-,12-,14+,15+,16+,17+/m0/s1
SMILES:  CNC[C@@H]1CC[C@H]([C@H](O1)O[C@@H]2[C@H](C[C@@H]([C@H]([C@H]2O)N(C)C(=O)CN)OC)N)N
Synthetic Gene Cluster:   n.a.
ChEMBL Identifier:   n.a.
PubChem CID:   156086
Chemical Classification**:  
  • CHEMONTID:0000000 [Organic compounds]
    • [CHEMONTID:0004603] Organic oxygen compounds
      • [CHEMONTID:0000323] Organooxygen compounds
        • [CHEMONTID:0000011] Carbohydrates and carbohydrate conjugates
          • [CHEMONTID:0003305] Aminosaccharides
            • [CHEMONTID:0000282] Aminoglycosides
              • [CHEMONTID:0001675] Aminocyclitol glycosides

*Note: the InCHIKey will be temporarily assigned as the "Common Name" if no IUPAC name or alternative short name is available.
**Note: the Chemical Classification was calculated by NPClassifier Version 1.5. Reference: PMID:34662515.

  Species Source

Organism ID Organism Name Taxonomy Level Family SuperKingdom Isolation Part Collection Location Collection Time Reference
NPO41550 Streptomyces tenjimariensis SS-939 + One of 53 marine bacterial isolates Strain n.a. n.a. n.a. n.a. n.a. PMID[12032613]

☑ Note for Reference:
In addition to directly collecting NP source organism data from primary literature (where reference will provided as NCBI PMID or DOI links), NPASS also integrated them from below databases:
UNPD: Universal Natural Products Database [PMID: 23638153].
StreptomeDB: a database of streptomycetes natural products [PMID: 33051671].
TM-MC: a database of medicinal materials and chemical compounds in Northeast Asian traditional medicine [PMID: 26156871].
TCM@Taiwan: a Traditional Chinese Medicine database [PMID: 21253603].
TCMID: a Traditional Chinese Medicine database [PMID: 29106634].
TCMSP: The traditional Chinese medicine systems pharmacology database and analysis platform [PMID: 24735618].
HerDing: a herb recommendation system to treat diseases using genes and chemicals [PMID: 26980517].
MetaboLights: a metabolomics database [PMID: 27010336].
FooDB: a database of constituents, chemistry and biology of food species [www.foodb.ca].

  NP Quantity Composition/Concentration

Organism ID NP ID Organism Material Preparation Organism Part NP Quantity (Standard) NP Quantity (Minimum) NP Quantity (Maximum) Quantity Unit Reference

☑ Note for Reference:
In addition to directly collecting NP quantitative data from primary literature (where reference will provided as NCBI PMID or DOI links), NPASS also integrated NP quantitative records for specific NP domains (e.g., NPS from foods or herbs) from domain-specific databases. These databases include:
DUKE: Dr. Duke's Phytochemical and Ethnobotanical Databases.
PHENOL EXPLORER: is the first comprehensive database on polyphenol content in foods [PMID: 24103452], its homepage can be accessed at here.
FooDB: a database of constituents, chemistry and biology of food species [www.foodb.ca].

  Biological Activity

Target ID Target Type Target Name Target Organism Activity Type Activity Relation Value Unit Reference

☑ Note for Activity Records:
☉ The quantitative biological activities were primarily integrated from ChEMBL (Version-30) database and were also directly collected from PubMed literature. PubMed PMID was provided as the reference link for each activity record.

  Chemically structural similarity: I. Similar Active Natural Products in NPASS

Top-200 similar NPs were calculated against the active-NP-set (includes 4,3285 NPs with experimentally-derived bioactivity available in NPASS)

Similarity level is defined by Tanimoto coefficient (Tc) between two molecules. Tc lies between [0, 1] where '1' indicates the highest similarity. What is Tanimoto coefficient

●  The left chart: Distribution of similarity level between NPC48960 and all remaining natural products in the NPASS database.
●  The right table: Most similar natural products (Tc>=0.56 or Top200).

Similarity Score Similarity Level Natural Product ID

  Chemically structural similarity: II. Similar Clinical/Approved Drugs

Similarity level is defined by Tanimoto coefficient (Tc) between two molecules.

●  The left chart: Distribution of similarity level between NPC48960 and all drugs/candidates.
●  The right table: Most similar clinical/approved drugs (Tc>=0.56 or Top200).

Similarity Score Similarity Level Drug ID Developmental Stage

  Bioactivity similarity: Similar Natural Products in NPASS

Bioactivity similarity was calculated based on bioactivity descriptors of compounds. The bioactivity descriptors were calculated by a recently developed AI algorithm Chemical Checker (CC) [Nature Biotechnology, 38:1087–1096, 2020; Nature Communications, 12:3932, 2021], which evaluated bioactivity similarities at five levels:
A: chemistry similarity;
B: biological targets similarity;
C: networks similarity;
D: cell-based bioactivity similarity;
E: similarity based on clinical data.

Those 5 categories of CC bioactivity descriptors were calculated and then subjected to manifold projection using UMAP algorithm, to project all NPs on a 2-Dimensional space. The current NP was highlighted with a small circle in the 2-D map. Below figures: left-to-right, A-to-E.

A: chemistry similarity
B: biological targets similarity
C: networks similarity
D: cell-based bioactivity similarity
E: similarity based on clinical data