Natural Product: NPC137627

Natural Product IDNPC137627
Common Name
?
The InCHIKey will be temporarily assigned as the "Common Name" if no IUPAC name or alternative short name is available.
Kempopeptin A
IUPAC Name (2S)-1-acetyl-N-[(2S,3R)-1-[[(2S,5S,8S,11R,12S,15S,18S,21R)-2-benzyl-21-hydroxy-5-[(4-hydroxyphenyl)methyl]-4,11-dimethyl-15-(2-methylpropyl)-3,6,9,13,16,22-hexaoxo-8-propan-2-yl-10-oxa-1,4,7,14,17-pentazabicyclo[16.3.1]docosan-12-yl]amino]-3-hydroxy-1-oxobutan-2-yl]pyrrolidine-2-carboxamide
Synonyms
Synthetic Gene Cluster n.a.
ChEMBL Identifier CHEMBL450713
PubChem CID 25112524
Chemical Classification
  • CHEMONTID:0000000 [Organic compounds]
    • [CHEMONTID:0000264] Organic acids and derivatives
      • [CHEMONTID:0001813] Peptidomimetics
        • [CHEMONTID:0001961] Depsipeptides
          • [CHEMONTID:0001994] Cyclic depsipeptides

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 NGRWMTIDCSTQOO-XADDPKOHSA-N
Standard InCHI InChI=1S/C50H70N8O13/c1-26(2)23-35-43(63)51-34-20-21-39(62)58(48(34)68)38(25-31-13-10-9-11-14-31)49(69)56(8)37(24-32-16-18-33(61)19-17-32)45(65)53-40(27(3)4)50(70)71-29(6)42(47(67)52-35)55-46(66)41(28(5)59)54-44(64)36-15-12-22-57(36)30(7)60/h9-11,13-14,16-19,26-29,34-42,59,61-62H,12,15,20-25H2,1-8H3,(H,51,63)(H,52,67)(H,53,65)(H,54,64)(H,55,66)/t28-,29-,34+,35+,36+,37+,38+,39-,40+,41+,42+/m1/s1
SMILES CC(C)C[C@H]1C(=N[C@H]2CC[C@H](N([C@@H](Cc3ccccc3)C(=O)N(C)[C@@H](Cc3ccc(cc3)O)C(=N[C@@H](C(C)C)C(=O)O[C@H](C)[C@@H](C(=N1)O)N=C([C@H]([C@@H](C)O)N=C([C@@H]1CCCN1C(=O)C)O)O)O)C2=O)O)O

  Calculated Properties

Physi-Chem Properties

Molecular Weight:   990.51 Volume:   993.274
?
Van der Waals volume.
Dense:   0.997 LogP:   2.019
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The logarithm of the n-octanol/water distribution coefficients.
logD7.4:   2.225
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The logarithm of the n-octanol/water distribution coefficient at pH=7.4.
LogS:   -2.929
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The logarithm of aqueous solubility value.
Rotatable Bonds:   13.0 Rigid Bonds:   46.0
TPSA:   310.87
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Topological Polar Surface Area.
H-Bond Acceptor:   21.0
H-Bond Donor:   8.0 Rings:   5.0
Heavy Atoms:   21.0

MedChem Properties

QED Drug-Likeness Score:   0.085 GASA:   1.0
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GASA represents the probability of being difficult to synthesize, ranging from 0 to 1.
Synthetic Accessibility Score:   7.539 Fsp3:   0.58
MCE-18:   144.241
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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:   0.68 Fluc inhibitor:   0.016
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The fluc inhibitor value is the probability of being fLuc inhibitors, within the range of 0 to 1.
Blue fluorescence:   0.009
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The blue fluorescence value is the probability of being blue fluorescence, within the range of 0 to 1
Green fluorescence:   0.808
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The green fluorescence value is the probability of being green fluorescence, within the range of 0 to 1
Reactive compounds:   0.001 Promiscuous compounds:   0.002

ADMET Properties (ADMETlab3.0)

ADMET: Absorption

Caco-2 Permeability:   -5.801 MDCK Permeability:   -5.09
Pgp-inhibitor:   0.976 Pgp-substrate:   0.999
PAMPA:   0.978
?
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):   0.751
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:   0.823
Plasma Protein Binding (PPB):   64.989% Volume Distribution (VD):   -0.345
Fu: 31.577%
?
The fraction unbound in plasms.
OATP1B1 inhibitor:   1.0
OATP1B3 inhibitor:   1.0 BCRP inhibitor:   0.003
BSEP inhibitor:   1.0

ADMET: Metabolism

CYP1A2-inhibitor:   0.0 CYP1A2-substrate:   0.0
CYP2C19-inhibitor:   0.419 CYP2C19-substrate:   0.0
CYP2C9-inhibitor:   0.0 CYP2C9-substrate:   0.0
CYP2D6-inhibitor:   0.0 CYP2D6-substrate:   0.002
CYP3A4-inhibitor:   1.0 CYP3A4-substrate:   0.0
CYP2B6-substrate:   0.0 CYP2C8-inhibitor:   0.0
HLM stability:   0.009
?
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):  0.411 Half-life (T1/2):  3.13

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:  0.089 Rat Oral Acute Toxicity:  0.179
Maximum Recommended Daily Dose:  0.637 Skin Sensitization:  1.0
Carcinogencity:  0.203 Eye Corrosion:  0.0
Eye Irritation:  0.001 Respiratory Toxicity:  0.061
Drug-induced Neurotoxicity:  0.0 Ototoxicity:  1.0
Hematotoxicity:  0.323 Drug-induced Nephrotoxicity:  1.0
Genotoxicity:  1.0 RPMI-8226 Immunitoxicity:  0.0
A549 Cytotoxicity:  0.0 Hek293 Cytotoxicity:  0.004
BCF:   0.422
?
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:   3.338
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48 hour Tetrahymena pyriformis IGC50. The unit of IGC50 is -log10[(mg/L)/(1000*MW)].
LC50DM:   5.117
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48 hour Daphnia magna LC50. The unit of LC50DM is -log10[(mg/L)/(1000*MW)].
LC50FM:   4.202
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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
NPO32881 Lyngbya sp. Species Oscillatoriaceae Bacteria n.a. Palauan n.a. PMID[12141859]
NPO32881 Lyngbya sp. Species Oscillatoriaceae Bacteria n.a. n.a. n.a. PMID[12502348]
NPO32881 Lyngbya sp. Species Oscillatoriaceae Bacteria n.a. n.a. n.a. PMID[12762789]
NPO32881 Lyngbya sp. Species Oscillatoriaceae Bacteria n.a. Palauan n.a. PMID[12762800]
NPO30527 Lyngbya Genus Oscillatoriaceae Bacteria n.a. n.a. n.a. PMID[14695793]
NPO32881 Lyngbya sp. Species Oscillatoriaceae Bacteria n.a. n.a. n.a. PMID[14695793]
NPO32881 Lyngbya sp. Species Oscillatoriaceae Bacteria n.a. Florida Everglades n.a. PMID[17432902]
NPO30527 Lyngbya Genus Oscillatoriaceae Bacteria n.a. n.a. n.a. PMID[18693761]
NPO32881 Lyngbya sp. Species Oscillatoriaceae Bacteria n.a. n.a. n.a. PMID[18693761]
NPO30527 Lyngbya Genus Oscillatoriaceae Bacteria n.a. n.a. n.a. PMID[21155594]
NPO30527 Lyngbya Genus Oscillatoriaceae Bacteria n.a. n.a. n.a. PMID[21650153]
NPO32881 Lyngbya sp. Species Oscillatoriaceae Bacteria n.a. Florida Keys n.a. PMID[21705224]
NPO30527 Lyngbya Genus Oscillatoriaceae Bacteria n.a. n.a. n.a. PMID[24111939]
NPO32881 Lyngbya sp. Species Oscillatoriaceae Bacteria n.a. n.a. n.a. Database[COCONUT]
NPO30527 Lyngbya Genus Oscillatoriaceae Bacteria 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
NPT2929 Protein family Pancreatic elastase Sus scrofa IC50 = 2600.0 nM PMID[18693761]

In vitro activity

Target ID Target Type Target Name Target Organism Activity Type Activity Relation Value Unit Reference
NPT2 Others Unspecified n.a. IC50 = 320.0 nM PMID[18693761]
NPT2 Others Unspecified n.a. IC50 > 67000.0 nM PMID[18693761]

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 NPC137627 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
0.7714 Intermediate Similarity NPC306804
0.6891 Remote Similarity NPC488263
0.6814 Remote Similarity NPC50016
0.6696 Remote Similarity NPC279871
0.6509 Remote Similarity NPC163392
0.65 Remote Similarity NPC159767
0.6471 Remote Similarity NPC269750
0.6471 Remote Similarity NPC294951
0.6446 Remote Similarity NPC155506
0.6441 Remote Similarity NPC194671
0.6422 Remote Similarity NPC239762
0.6364 Remote Similarity NPC302715
0.6111 Remote Similarity NPC163961
0.608 Remote Similarity NPC61332
0.5966 Remote Similarity NPC248670
0.592 Remote Similarity NPC102959
0.5902 Remote Similarity NPC45037
0.5891 Remote Similarity NPC240130
0.5868 Remote Similarity NPC489102
0.5854 Remote Similarity NPC471526
0.584 Remote Similarity NPC40234
0.584 Remote Similarity NPC487289
0.568 Remote Similarity NPC107938
0.5669 Remote Similarity NPC46009
0.5667 Remote Similarity NPC471165
0.5667 Remote Similarity NPC273755
0.5635 Remote Similarity NPC294516
0.5625 Remote Similarity NPC65714
0.5625 Remote Similarity NPC473371
0.5556 Remote Similarity NPC281049
0.5496 Remote Similarity NPC473404
0.5403 Remote Similarity NPC471052
0.5354 Remote Similarity NPC471050
0.5328 Remote Similarity NPC487230
0.5312 Remote Similarity NPC473407
0.5285 Remote Similarity NPC487229
0.5271 Remote Similarity NPC230611
0.5231 Remote Similarity NPC476227
0.5179 Remote Similarity NPC488254
0.5156 Remote Similarity NPC471053
0.5133 Remote Similarity NPC488255
0.5122 Remote Similarity NPC62104
0.5115 Remote Similarity NPC60516
0.5113 Remote Similarity NPC487291
0.5039 Remote Similarity NPC471051

Similar Clinical/Approved Drugs

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

●  The left chart: Distribution of similarity level between NPC137627 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