Natural Product: NPC477634

Natural Product IDNPC477634
Common Name
?
The InCHIKey will be temporarily assigned as the "Common Name" if no IUPAC name or alternative short name is available.
Circulin E
IUPAC Name n.a.
Synonyms Circulin E
Synthetic Gene Cluster n.a.
ChEMBL Identifier CHEMBL508235
PubChem CID 44575207
Chemical Classification
  • CHEMONTID:0000000 [Organic compounds]
    • [CHEMONTID:0003297] Organic Polymers
      • [CHEMONTID:0003298] Polypeptides

The Chemical Classification was calculated by Classyfire, a software for chemical taxonomy calculation. Reference: DOI:10.1186/s13321-016-0174-y.

  Chemical Representations

Standard InCHIKey OQFFATFPYICMLY-WHBDPGKYSA-N
Standard InCHI InChI=1S/C148H220N38O42S6/c1-14-75(11)117-147(227)185-49-27-36-106(185)141(221)176-100-64-229-230-66-102-136(216)161-85(33-21-24-46-149)121(201)173-101-65-231-234-69-105(175-134(214)98(62-187)171-122(202)88(42-44-111(194)195)158-110(193)61-156-120(100)200)140(220)181-115(73(7)8)144(224)170-93(54-80-59-155-84-32-20-19-31-83(80)84)133(213)183-118(76(12)15-2)148(228)186-50-28-37-107(186)142(222)177-103(138(218)163-90(51-71(3)4)132(212)184-119(77(13)189)146(226)172-99(63-188)135(215)180-114(72(5)6)143(223)169-92(52-78-29-17-16-18-30-78)127(207)167-96(57-109(153)192)130(210)174-102)67-232-233-68-104(178-145(225)116(74(9)10)179-124(204)86(34-22-25-47-150)159-129(209)95(56-108(152)191)166-123(203)89(162-137(101)217)43-45-112(196)197)139(219)164-91(53-79-38-40-82(190)41-39-79)126(206)165-94(55-81-60-154-70-157-81)128(208)168-97(58-113(198)199)131(211)160-87(125(205)182-117)35-23-26-48-151/h16-20,29-32,38-41,59-60,70-77,85-107,114-119,155,187-190H,14-15,21-28,33-37,42-58,61-69,149-151H2,1-13H3,(H2,152,191)(H2,153,192)(H,154,157)(H,156,200)(H,158,193)(H,159,209)(H,160,211)(H,161,216)(H,162,217)(H,163,218)(H,164,219)(H,165,206)(H,166,203)(H,167,207)(H,168,208)(H,169,223)(H,170,224)(H,171,202)(H,172,226)(H,173,201)(H,174,210)(H,175,214)(H,176,221)(H,177,222)(H,178,225)(H,179,204)(H,180,215)(H,181,220)(H,182,205)(H,183,213)(H,184,212)(H,194,195)(H,196,197)(H,198,199)/t75-,76-,77+,85-,86-,87-,88-,89-,90-,91-,92-,93-,94-,95-,96-,97-,98-,99-,100-,101-,102-,103-,104-,105-,106-,107-,114-,115-,116-,117-,118-,119-/m0/s1
SMILES CC[C@H](C)[C@H]1C(=O)N2CCC[C@H]2C(=N[C@H]2CSSC[C@H]3C(=N[C@@H](CCCCN)C(=N[C@H]4CSSC[C@@H](C(=N[C@@H](C(C)C)C(=N[C@@H](Cc5c[nH]c6ccccc56)C(=N[C@@H]([C@@H](C)CC)C(=O)N5CCC[C@H]5C(=N[C@@H](CSSC[C@@H](C(=N[C@@H](Cc5ccc(cc5)O)C(=N[C@@H](Cc5cnc[nH]5)C(=N[C@@H](CC(=O)O)C(=N[C@@H](CCCCN)C(=N1)O)O)O)O)O)N=C([C@H](C(C)C)N=C([C@H](CCCCN)N=C([C@H](CC(=N)O)N=C([C@H](CCC(=O)O)N=C4O)O)O)O)O)C(=N[C@@H](CC(C)C)C(=N[C@@H]([C@@H](C)O)C(=N[C@@H](CO)C(=N[C@@H](C(C)C)C(=N[C@@H](Cc1ccccc1)C(=N[C@@H](CC(=N)O)C(=N3)O)O)O)O)O)O)O)O)O)O)O)N=C([C@H](CO)N=C([C@H](CCC(=O)O)N=C(CN=C2O)O)O)O)O)O)O

  Calculated Properties

Physi-Chem Properties

Molecular Weight:   3393.46 Volume:   3248.448
?
Van der Waals volume.
Dense:   1.045 LogP:   -8.55
?
The logarithm of the n-octanol/water distribution coefficients.
logD7.4:   -3.635
?
The logarithm of the n-octanol/water distribution coefficient at pH=7.4.
LogS:   -4.491
?
The logarithm of aqueous solubility value.
Rotatable Bonds:   44.0 Rigid Bonds:   147.0
TPSA:   1356.65
?
Topological Polar Surface Area.
H-Bond Acceptor:   80.0
H-Bond Donor:   47.0 Rings:   12.0
Heavy Atoms:   86.0

MedChem Properties

QED Drug-Likeness Score:   0.006 GASA:   1.0
?
GASA represents the probability of being difficult to synthesize, ranging from 0 to 1.
Synthetic Accessibility Score:   10.0 Fsp3:   0.608
MCE-18:   378.882
?
MCE-18 stands for medicinal chemistry evolution.MCE-18≥45 is considered a suitable value.
Lipinski Rule-of-5:   Accepted
Pfizer Rule:   Rejected GSK Rule:   Accepted
Golden Triangle Rule:   Accepted BMS Rule:   1
Chelating Alert:   0 PAINS Alert:   0
Colloidal aggregators:   0.333 Fluc inhibitor:   0.321
?
The fluc inhibitor value is the probability of being fLuc inhibitors, within the range of 0 to 1.
Blue fluorescence:   0.335
?
The blue fluorescence value is the probability of being blue fluorescence, within the range of 0 to 1
Green fluorescence:   0.669
?
The green fluorescence value is the probability of being green fluorescence, within the range of 0 to 1
Reactive compounds:   0.766 Promiscuous compounds:   0.283

ADMET Properties (ADMETlab3.0)

ADMET: Absorption

Caco-2 Permeability:   -6.264 MDCK Permeability:   -5.711
Pgp-inhibitor:   0.006 Pgp-substrate:   1.0
PAMPA:   1.0
?
The experimental data for Peff was logarithmically transformed (logPeff). Molecules with log Peff values below 2.0 were classified as low-permeability (Category 0), while those with log Peff values exceeding 2.5 were classified as high-permeability (Category 1).
Human Intestinal Absorption (HIA):   1.0
20% Bioavailability (F20%):   1.0 30% Bioavailability (F30%):   1.0
50% Bioavailability (F50%):   1.0

ADMET: Distribution

Blood-Brain-Barrier Penetration (BBB):   0.0 MRP1:   0.165
Plasma Protein Binding (PPB):   -6.818% Volume Distribution (VD):   -0.708
Fu: 140.462%
?
The fraction unbound in plasms.
OATP1B1 inhibitor:   1.0
OATP1B3 inhibitor:   1.0 BCRP inhibitor:   0.0
BSEP inhibitor:   0.996

ADMET: Metabolism

CYP1A2-inhibitor:   0.0 CYP1A2-substrate:   0.0
CYP2C19-inhibitor:   0.0 CYP2C19-substrate:   0.0
CYP2C9-inhibitor:   1.0 CYP2C9-substrate:   0.0
CYP2D6-inhibitor:   0.0 CYP2D6-substrate:   0.0
CYP3A4-inhibitor:   1.0 CYP3A4-substrate:   0.0
CYP2B6-substrate:   0.0 CYP2C8-inhibitor:   0.0
HLM stability:   0.0
?
Human liver microsomal (HLM) stability. Category 0: stable+ (HLM > 30 min); Category 1: unstable- (HLM ≤ 30 min). The output value is the probability of human liver microsomal instability, where a value closer to 1 indicates a higher likelihood of instability.

ADMET: Excretion

Clearance (CL):  -4.429 Half-life (T1/2):  11.407

ADMET: Toxicity

hERG Blockers:  0.0 hERG Blockers (10um):  0.0
Human Hepatotoxicity (H-HT):  1.0 Drug-induced Liver Injury (DILI):  1.0
AMES Toxicity:  0.0 Rat Oral Acute Toxicity:  0.998
Maximum Recommended Daily Dose:  0.0 Skin Sensitization:  1.0
Carcinogencity:  0.051 Eye Corrosion:  0.0
Eye Irritation:  0.0 Respiratory Toxicity:  0.0
Drug-induced Neurotoxicity:  0.0 Ototoxicity:  1.0
Hematotoxicity:  1.0 Drug-induced Nephrotoxicity:  1.0
Genotoxicity:  1.0 RPMI-8226 Immunitoxicity:  0.0
A549 Cytotoxicity:  0.0 Hek293 Cytotoxicity:  0.0
BCF:   -0.408
?
Bioconcentration factors are used for considering secondary poisoning potential and assessing risks to human health via the food chain. The unit is -log10[(mg/L)/(1000*MW)].
IGC50:   3.058
?
48 hour Tetrahymena pyriformis IGC50. The unit of IGC50 is -log10[(mg/L)/(1000*MW)].
LC50DM:   5.551
?
48 hour Daphnia magna LC50. The unit of LC50DM is -log10[(mg/L)/(1000*MW)].
LC50FM:   4.145
?
96 hour fathead minnow LC50. The unit of LC50FM is -log10[(mg/L)/(1000*MW)].

  Species Source

Organism ID Organism Name Taxonomy Level Family SuperKingdom Isolation Part Collection Location Collection Time Reference
NPO40066 Chassalia parvifolia Species Rubiaceae Eukaryota n.a. n.a. n.a. PMID[10691702]
NPO33585 Palicourea condensata Species Rubiaceae Eukaryota Bark Pastaza, Ecuador 1988-MAR PMID[11430013]
NPO40066 Chassalia parvifolia Species Rubiaceae Eukaryota n.a. n.a. n.a. Database[COCONUT]
NPO33585 Palicourea condensata Species Rubiaceae Eukaryota n.a. n.a. n.a. Database[COCONUT]

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 Organism Name 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

Molecular-level activity

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

In vitro activity

Target ID Target Type Target Name Target Organism Activity Type Activity Relation Value Unit Reference
NPT24 Organism Human immunodeficiency virus 1 Human immunodeficiency virus 1 EC50 = 50.0 nM PMID[11430013]
NPT24 Organism Human immunodeficiency virus 1 Human immunodeficiency virus 1 EC50 = 40.0 nM PMID[20718473]
NPT24 Organism Human immunodeficiency virus 1 Human immunodeficiency virus 1 IC50 = 500.0 nM PMID[20718473]

In vivo activity

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





 Experimental ADME

Experiment Model Experiment Tissue ADME Type ADME Relation ADME Value ADME Unit Reference





 Experimental Toxicity

Quantitative toxicity

Experiment Model Experiment Organism Toxicity Type Toxicity Relation Toxicity Value Toxicity Unit Reference

Common Abbreviations:
LC: Lethal Concentration; LD: Lethal Dose; LT:Lethal Time; NOAEL: No-observed-adverse-effect Level; BMDL: Benchmark Dose Lower Confidence Limit; BMD: Benchmark Dose; BMC:Benchmark Concentration; LOAEL: Lowest Observed Adverse Effect Level; RfD:Reference Dose; RfC:Reference Concentration; MRL: Minimal Risk Level; MEG: Maximum Exposure Guideline; PAC: Protective Action Criteria

Categorical toxicity labels

Hepatotoxicity Carcinogenicity Mutagenicity Cardiotoxicity Respiratory Toxicity Eye Irritation Endocrine Disruption
Hepatotoxicity Carcinogenicity Mutagenicity Cardiotoxicity Respiratory Toxicity Eye Irritation Endocrine Disruption

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 toxicity records from domain-specific databases. These databases include:
ToxValDB: a curated database that compiles quantitative toxicity values for chemicals from diverse public sources to support toxicological research and risk assessment.
TOXRIC: a comprehensive, free-to-access, online database providing toxicological/feature data. The toxicity labels are retrieved from this database. [PMID: 36400569]


  Chemically structural similarity

Similar Active Natural Products in NPASS

Top-200 similar NPs were calculated against the active-NP-set (includes approximately 50,000 NPs with experimentally-derived bioactivity available in NPASS)

Similarity is measured using the Tanimoto coefficient (Tc) , which compares the binary fingerprints of two molecules. Tc is calculated as the intersection divided by the union of '1' bits in the fingerprints, ranging from 0 to 1, with 1 indicating highest similarity.

●  The left chart: Distribution of similarity level between NPC477634 and all remaining natural products in the NPASS database.
●  The right table: Most similar natural products (Tc>=0.5 or Top200).

Similarity Score Similarity Level Natural Product ID
0.9691 High Similarity NPC477633
0.767 Intermediate Similarity NPC486515
0.7665 Intermediate Similarity NPC486513
0.7374 Intermediate Similarity NPC477635
0.7293 Intermediate Similarity NPC486506
0.7293 Intermediate Similarity NPC485247
0.7293 Intermediate Similarity NPC486514
0.7097 Intermediate Similarity NPC485244
0.7068 Intermediate Similarity NPC486517
0.7065 Intermediate Similarity NPC480594
0.7049 Intermediate Similarity NPC484965
0.7035 Intermediate Similarity NPC479872
0.6932 Remote Similarity NPC486507
0.6836 Remote Similarity NPC485115
0.6806 Remote Similarity NPC329843
0.6737 Remote Similarity NPC479128
0.6725 Remote Similarity NPC485114
0.6648 Remote Similarity NPC484964
0.6611 Remote Similarity NPC477632
0.6611 Remote Similarity NPC486505
0.6541 Remote Similarity NPC479141
0.6524 Remote Similarity NPC480595
0.65 Remote Similarity NPC479082
0.6429 Remote Similarity NPC482981
0.64 Remote Similarity NPC479083
0.6377 Remote Similarity NPC480533
0.6324 Remote Similarity NPC484365
0.6284 Remote Similarity NPC484963
0.6162 Remote Similarity NPC485246
0.6149 Remote Similarity NPC485116
0.6117 Remote Similarity NPC485243
0.6043 Remote Similarity NPC485245
0.5964 Remote Similarity NPC489555
0.5951 Remote Similarity NPC489512
0.5876 Remote Similarity NPC482856
0.5855 Remote Similarity NPC485125
0.5846 Remote Similarity NPC484362
0.5829 Remote Similarity NPC479133
0.5812 Remote Similarity NPC486508
0.5767 Remote Similarity NPC478504
0.5763 Remote Similarity NPC484347
0.5749 Remote Similarity NPC69843
0.5744 Remote Similarity NPC486503
0.5707 Remote Similarity NPC484078
0.5693 Remote Similarity NPC329855
0.5689 Remote Similarity NPC483985
0.5684 Remote Similarity NPC484364
0.567 Remote Similarity NPC489217
0.5635 Remote Similarity NPC75634
0.5622 Remote Similarity NPC329847
0.56 Remote Similarity NPC489511
0.5588 Remote Similarity NPC489215
0.5581 Remote Similarity NPC480596
0.555 Remote Similarity NPC320968
0.5529 Remote Similarity NPC325976
0.5529 Remote Similarity NPC326363
0.5472 Remote Similarity NPC486504
0.5463 Remote Similarity NPC489216
0.5455 Remote Similarity NPC482857
0.5446 Remote Similarity NPC480529
0.5427 Remote Similarity NPC484363
0.5425 Remote Similarity NPC480530
0.5385 Remote Similarity NPC479132
0.5368 Remote Similarity NPC153400
0.5355 Remote Similarity NPC479135
0.5319 Remote Similarity NPC479130
0.5319 Remote Similarity NPC479129
0.5302 Remote Similarity NPC480528
0.5183 Remote Similarity NPC485113
0.5096 Remote Similarity NPC480440
0.5078 Remote Similarity NPC479136
0.5057 Remote Similarity NPC479574
0.5024 Remote Similarity NPC487089

Similar Clinical/Approved Drugs

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

●  The left chart: Distribution of similarity level between NPC477634 and all drugs/candidates.
●  The right table: Most similar clinical/approved drugs (Tc>=0.5 or Top200).

Similarity Score Similarity Level Drug ID Developmental Stage
NPD

Bioactivity similarity

  Bioactivity similarity

Similar Natural Products in NPASS

Similarity level is defined by 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