NPASS Compound

Structure

NPC50650 OpenBabel06302216212D 27 28 0 0 1 0 0 0 0 0999 V2000 5.1962 3.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 4.3301 3.5000 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 3.4641 3.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 3.4641 2.0000 0.0000 C 0 0 2 0 0 0 0 0 0 0 0 0 4.3301 1.5000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 4.3301 0.5000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 3.4641 -0.0000 0.0000 C 0 0 2 0 0 0 0 0 0 0 0 0 2.5981 0.5000 0.0000 C 0 0 2 0 0 0 0 0 0 0 0 0 2.5981 1.5000 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 1.7321 -0.0000 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 0.8660 0.5000 0.0000 C 0 0 2 0 0 0 0 0 0 0 0 0 0.8660 1.5000 0.0000 C 0 0 1 0 0 0 0 0 0 0 0 0 0.0000 2.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.8660 1.5000 0.0000 C 0 0 1 0 0 0 0 0 0 0 0 0 -0.8660 0.5000 0.0000 C 0 0 2 0 0 0 0 0 0 0 0 0 -0.0000 -0.0000 0.0000 C 0 0 1 0 0 0 0 0 0 0 0 0 -0.0000 -1.0000 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 -1.7321 0.0000 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 -2.5981 0.5000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -1.7321 -1.0000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -2.5981 -1.5000 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 -0.8660 -1.5000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 -0.8660 -2.5000 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 -1.7321 2.0000 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 -2.5981 1.5000 0.0000 C 0 0 0 0 0 0 0 0 0 0 0 0 1.7321 2.0000 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 3.4641 -1.0000 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 0 0 0 0 2 3 1 0 0 0 0 4 3 1 6 0 0 0 4 5 1 0 0 0 0 4 9 1 0 0 0 0 5 6 1 0 0 0 0 6 7 1 0 0 0 0 7 8 1 0 0 0 0 7 27 1 1 0 0 0 8 9 1 0 0 0 0 8 10 1 1 0 0 0 11 10 1 1 0 0 0 11 12 1 0 0 0 0 11 16 1 0 0 0 0 12 13 1 0 0 0 0 12 26 1 1 0 0 0 13 14 1 0 0 0 0 14 15 1 0 0 0 0 14 24 1 1 0 0 0 15 16 1 0 0 0 0 15 18 1 6 0 0 0 16 17 1 6 0 0 0 18 19 1 0 0 0 0 18 20 1 0 0 0 0 20 21 2 0 0 0 0 20 22 1 0 0 0 0 22 23 1 0 0 0 0 24 25 1 0 0 0 0 M END $$$$

Physi-Chem Properties

Molecular Weight:	389.26
Volume:	381.774
LogP:	-2.278
LogD:	-1.396
LogS:	-0.039
# 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:	-6.272
MDCK Permeability:	2.3791662897565402e-05
Pgp-inhibitor:	0.0
Pgp-substrate:	0.718
Human Intestinal Absorption (HIA):	0.963
20% Bioavailability (F20%):	0.979
30% Bioavailability (F30%):	0.996

ADMET: Distribution

Blood-Brain-Barrier Penetration (BBB):	0.153
Plasma Protein Binding (PPB):	13.503974914550781%
Volume Distribution (VD):	0.63
Pgp-substrate:	85.05427551269531%

ADMET: Metabolism

CYP1A2-inhibitor:	0.004
CYP1A2-substrate:	0.019
CYP2C19-inhibitor:	0.016
CYP2C19-substrate:	0.11
CYP2C9-inhibitor:	0.002
CYP2C9-substrate:	0.005
CYP2D6-inhibitor:	0.005
CYP2D6-substrate:	0.177
CYP3A4-inhibitor:	0.009
CYP3A4-substrate:	0.152

ADMET: Excretion

Clearance (CL):	1.317
Half-life (T1/2):	0.806

ADMET: Toxicity

hERG Blockers:	0.13
Human Hepatotoxicity (H-HT):	0.382
Drug-inuced Liver Injury (DILI):	0.078
AMES Toxicity:	0.073
Rat Oral Acute Toxicity:	0.105
Maximum Recommended Daily Dose:	0.537
Skin Sensitization:	0.738
Carcinogencity:	0.025
Eye Corrosion:	0.027
Eye Irritation:	0.042
Respiratory Toxicity:	0.844

Download Data

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

Natural Product: NPC50650

Natural Product ID:	NPC50650
*Common Name:**	istamycin b
IUPAC Name:	n.a.
Synonyms:
Standard InCHIKey:	NEFDRWXEVITQMN-MKRRRRENSA-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:	156088
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 NPC50650 and all remaining natural products in the NPASS database.
● The right table: Most similar natural products (Tc>=0.56 or Top200).

range	Tanimoto Coefficient
0-0.1	321
0.1-0.2	10212
0.2-0.3	22362
0.3-0.4	8259
0.4-0.5	1276
0.5-0.6	187
0.6-0.7	50
0.7-0.8	30
0.8-0.85	0
0.85-0.9	0
0.9-0.95	0
0.95-1	0

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 NPC50650 and all drugs/candidates.
● The right table: Most similar clinical/approved drugs (Tc>=0.56 or Top200).

range	Tanimoto Coefficient
0-0.1	109
0.1-0.2	2557
0.2-0.3	4698
0.3-0.4	1434
0.4-0.5	217
0.5-0.6	73
0.6-0.7	37
0.7-0.8	23
0.8-0.85	0
0.85-0.9	0
0.9-0.95	1
0.95-1	1

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