Serine proteases are enzymes that cleave peptide bonds in proteins, in which serine serves as the nucleophilic amino acidat the active site. They are found ubiquitously in both eukaryotes and prokaryotes. Serine proteases fall into two broad categories based on their structure: chymotrypsin-like or subtilisin-like. In humans, serine proteases are responsible for co-ordinating various physiological functions, including digestion, immune response, blood coagulation and reproduction. Threnonine proteases are a family of proteolytic enzymes harbouring a threonine (Thr) residue within the active site. The prototype members of this class of enzymes are the catalytic subunits of the proteasome, however the acyltransferases convergently evolved the same active site geometry andmechanism.


Anti-infection >
Arenavirus Bacterial CMV Enterovirus Filovirus Fungal HBV HCV HIV HSV Influenza Virus Parasite Reverse Transcriptase RSV SARS-CoV
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Apoptosis >
Apoptosis Bcl-2 Family c-Myc Caspase DAPK Ferroptosis IAP MDM-2/p53 PKD RIP kinase Survivin Thymidylate Synthase TNF Receptor
Autophagy >
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Antifolate APC ATM/ATR Aurora Kinase Casein Kinase CDK Checkpoint Kinase (Chk) CRISPR/Cas9 Deubiquitinase DNA Alkylator/Crosslinker DNA-PK DNA/RNA Synthesis Eukaryotic Initiation Factor (eIF) G-quadruplex Haspin Kinase HDAC HSP IRE1 Kinesin LIM Kinase (LIMK) Microtubule/Tubulin Mps1 Nucleoside Antimetabolite/Analog p97 PAK PARP PERK Polo-like Kinase (PLK) PPAR RAD51 ROCK Sirtuin SRPK Telomerase TOPK Topoisomerase Wee1
Cytoskeleton >
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Epigenetics >
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GPCR/G Protein >
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Immunology/Inflammation >
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JAK/STAT Signaling >
EGFR JAK Pim STAT
MAPK/ERK Pathway >
ERK JNK KLF MAP3K MAP4K MAPKAPK2 (MK2) MEK Mixed Lineage Kinase MNK p38 MAPK Raf Ribosomal S6 Kinase (RSK)
Membrane Transporter/Ion Channel >
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Metabolic Enzyme/Protease >
15-PGDH 5 alpha Reductase 5-Lipoxygenase Acetyl-CoA Carboxylase Acyltransferase Adenosine Deaminase Adenosine Kinase Aldehyde Dehydrogenase (ALDH) Aldose Reductase Aminopeptidase Angiotensin-converting Enzyme (ACE) ATGL ATP Citrate Lyase Carbonic Anhydrase Carboxypeptidase Cathepsin CETP COMT Cytochrome P450 Dipeptidyl Peptidase Dopamine β-hydroxylase E1/E2/E3 Enzyme Elastase Enolase FAAH FABP Factor Xa Farnesyl Transferase Fatty Acid Synthase (FAS) FXR Glucokinase GSNOR Gutathione S-transferase HCV Protease Hexokinase HIF/HIF Prolyl-Hydroxylase HIV Integrase HIV Protease HMG-CoA Reductase (HMGCR) HSP Indoleamine 2,3-Dioxygenase (IDO) Isocitrate Dehydrogenase (IDH) Lactate Dehydrogenase LXR MAGL Mineralocorticoid Receptor Mitochondrial Metabolism MMP Nampt NEDD8-activating Enzyme Neprilysin PAI-1 PDHK PGC-1α Phosphatase Phosphodiesterase (PDE) Phospholipase Procollagen C Proteinase Proteasome Pyruvate Kinase RAR/RXR Renin ROR Ser/Thr Protease SGK Stearoyl-CoA Desaturase (SCD) Thrombin Tryptophan Hydroxylase Tyrosinase Xanthine Oxidase
Neuronal Signaling >
5-HT Receptor AChE Adenosine Kinase Amyloid-β Beta-secretase CaMK CGRP Receptor COMT Dopamine Receptor Dopamine Transporter FAAH GABA Receptor GlyT iGluR Imidazoline Receptor mAChR Melatonin Receptor Monoamine Oxidase nAChR Neurokinin Receptor Opioid Receptor Serotonin Transporter γ-secretase
NF-κB >
NF-κB IKK Keap1-Nrf2 MALT1
PI3K/Akt/mTOR >
Akt AMPK ATM/ATR DNA-PK GSK-3 MELK mTOR PDK-1 PI3K PI4K PIKfyve PTEN
PROTAC >
PROTAC E3 Ligase Ligand-Linker Conjugate Ligand for E3 Ligase PROTAC Linker PROTAC-linker Conjugate for PAC
Protein Tyrosine Kinase/RTK >
Ack1 ALK Bcr-Abl BMX Kinase Btk c-Fms c-Kit c-Met/HGFR Discoidin Domain Receptor DYRK EGFR Ephrin Receptor FAK FGFR FLT3 IGF-1R Insulin Receptor IRAK Itk PDGFR PKA Pyk2 ROS Src Syk TAM Receptor Trk Receptor VEGFR
Stem Cell/Wnt >
Casein Kinase ERK Gli GSK-3 Hedgehog Hippo (MST) JAK Notch Oct3/4 PKA Porcupine ROCK sFRP-1 Smo STAT TGF-beta/Smad Wnt YAP β-catenin γ-secretase
TGF-beta/Smad >
TGF-beta/Smad PKC ROCK TGF-β Receptor
Vitamin D Related >
VD/VDR
Others >
Androgen Receptor Aromatase Estrogen Receptor/ERR Progesterone Receptor Thyroid Hormone Receptor Others

NSC45586 free base

NSC45586 free base (NCS 45586, NCI45586) is a potent, specific PHLPP2 inhibitor with IC50 of 4 uM, targets the PHLPP2 PP2C domain, suppresses MYC and triggers cell death.

  • CAS Number: 739301-85-0
  • MF: C20H18N6O3
  • MW: 390.403
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

VD2173

VD2173 is a side chain cyclized macrocyclic peptide inhibitor of HGF-activating serine proteases. VD2173 potently inhibits matriptase and hepsin. VD2173 can be used for the research of lung cancer[1].

  • CAS Number: 2574389-19-6
  • MF: C31H45N9O6S
  • MW: 671.81
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PCSK9-IN-20

PCSK9-IN-20 (Compound 3i) is a PCSK9 inhibitor with an IC50 of 3.96 µM. PCSK9-IN-20 decreases PCSK9 and increases LDLR protein expression in vitro[1].

  • CAS Number: 2929219-77-0
  • MF: C27H32N6O5S2
  • MW: 584.71
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ALA-ALA-PHE-CHLOROMETHYLKETONE TFA

AAF-CMK is a TPPII (tripeptidylpeptidase II) inhibitor, shows anti-tumor activity and induces apoptosis. AAF-CMK can be used in leukemia research[1].

  • CAS Number: 102129-66-8
  • MF: C16H22ClN3O3
  • MW: 339.81700
  • Catalog: Apoptosis
  • Density: 1.215g/cm3
  • Boiling Point: 508.9ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 261.6ºC

Manusiran

Manusiran is a potent TMPRSS6 (transmembrane protease serine 6) synthesis reducer[1].

  • CAS Number: 2646704-10-9
  • MF: C434H570F19N145O270P40S10
  • MW: 14058.53
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Ono 3403

Ono 3403 is a synthetic serine protease inhibitor. Ono 3403 inhibits lipopolysaccharide-induced tumor necrosis factor-alpha and nitric oxide production. ONO-3403 also has an antitumor effect on malignant tumors.

  • CAS Number: 181586-07-2
  • MF: C26H31N3O8S
  • MW: 545.6
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Patamostat

Patamostat (E-3123) is a potent protease inhibitor. Patamostat potently inhibits trypsin, plasmin and thrombin with IC50s of 39 nM, 950 nM and 1.9 μM, respectively. E-3123 may possess suppressing effects on pathogenesis and development of acute pancreatitis[1][2].

  • CAS Number: 114568-26-2
  • MF: C20H20N4O4S
  • MW: 412.46200
  • Catalog: Ser/Thr Protease
  • Density: 1.41g/cm3
  • Boiling Point: 701.5ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 378.1ºC

PCSK9-IN-13

PCSK9-IN-13(compound 3f) is a potent PCSK9 inhibitor, which can antagonize low-density lipoprotein (LDL) receptor binding by binding to PCSK9, with an IC50 of 537 nM[1].

  • CAS Number: 2244129-23-3
  • MF: C30H33N5O2
  • MW: 495.62
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Z-Val-Gly-Arg-pNA

Z-Val-Gly-Arg-pNA is a chromogenic substrate for urokinase. Z-Val-Gly-Arg-pNA can be used for determination of urokinase activity[1].

  • CAS Number: 78333-16-1
  • MF: C27H36N8O7
  • MW: 584.624
  • Catalog: Ser/Thr Protease
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

UK-371804

UK-371804 is a urokinase-type plasminogen activator (uPA) inhibitor with a Ki of 10 nM.

  • CAS Number: 256477-09-5
  • MF: C14H16ClN5O4S
  • MW: 385.823
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PF-06815345

PF-06815345 (PF 6815345) is a potent prodrug PCSK9 modulator that inhibits PCSK9 secretion in vitro translation assay; PF-06815345is identified after optimization of the prodrug moiety to maximize intestinal stability achieving liver targeting of the active compound after prodrug turnover by carboxylesterase (CES1). Hypercholesterolemia Phase 1 Discontinued

  • CAS Number: 1900686-46-5
  • MF: C27H29ClFN9O4
  • MW: 598.029
  • Catalog: Ser/Thr Protease
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 775.4±70.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 422.7±35.7 °C

HMB-Val-Ser-Leu-VE

HMB-Val-Ser-Leu-VE is a prototype vinyl ester inhibitor. HMB-Val-Ser-Leu-VE is against trypsin-like (T-L) proteasome activity with an IC50 of 0.033 μM[1].

  • CAS Number: 862891-04-1
  • MF: C26H39N3O7
  • MW: 505.60
  • Catalog: Ser/Thr Protease
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 754.1±60.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 409.8±32.9 °C

WX 671

Upamostat is a serine protease inhibitor. Upamostat is the orally available prodrug of the WX-UK1, which is a urokinase plasminogen activator (uPA) inhibitor.

  • CAS Number: 590368-25-5
  • MF: C32H47N5O6S
  • MW: 629.81000
  • Catalog: Ser/Thr Protease
  • Density: 1.25
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Flizasertib

Flizasertib is a serine/threonine kinase inhibitor[1].

  • CAS Number: 2268739-68-8
  • MF: C15H14FN3O
  • MW: 271.29
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Lanadelumab

Lanadelumab (SHP643) is a humanized IgG1 monoclonal antibody against plasma kallikrein (pKal) with an Ki value of 0.12 nM. Lanadelumab inhibits both free and HMWK (high molecular weight kininogen)-bound pKal. Lanadelumab has the potential for the research of hereditary angioedema[1][2].

  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Kallikrein-IN-2

Kallikrein-IN-2 (compound 1) is a Kallikrein inhibitor[1].

  • CAS Number: 2702983-84-2
  • MF: C28H25F3N4O4
  • MW: 538.52
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

GCN2-IN-1

GCN2-IN-1 is a potent general control nonderepressible 2 kinase (GCN2) inhibitor with IC50s of <0.3 μM in the enzyme and cell assay.

  • CAS Number: 1448693-69-3
  • MF: C19H18N10O
  • MW: 402.413
  • Catalog: Ser/Thr Protease
  • Density: 1.7±0.1 g/cm3
  • Boiling Point: 760.0±70.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 413.4±35.7 °C

BC11 hydrobromide

BC-11 hydrobromide is a selective TMPRSS2 inhibitor (TMPRSS2 is a key host cellular factor for viral entry and SARS-CoV-2 pathogenesis), and a selective urokinase (uPA) inhibitor (IC50=8.2 μM). BC-11 hydrobromide is cytotoxic to triple-negative MDA-MB231 breast cancer cells. BC-11 hydrobromide is used in research on viral infections and cancer[1][2][3].

  • CAS Number: 443776-49-6
  • MF: C8H12BBrN2O2S
  • MW: 290.97
  • Catalog: SARS-CoV
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PCSK9-IN-16

PCSK9-IN-16 is a potent PCSK9 inhibitor. PCSK9-IN-16 is extracted from patent WO2020150474, example 87, has the potential for hypercholesterolemia and other cardiovascular diseases research[1].

  • CAS Number: 2455424-51-6
  • MF: C16H20N6O2S3
  • MW: 424.56
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PPACKII (trifluoroacetate salt)

PPACK II diTFA is an irreversible and specific glandular and plasma kallikreins inhibitor[1].

  • CAS Number: 649748-23-2
  • MF: C29H35ClF6N6O7
  • MW: 729.068
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Recombinant Kex2 protease

Recombinant Kex2 protease is a membrane-bound, Ca2+-dependent serine protease. Recombinant Kex2 protease specifically recognize and cleave the carboxyl-terminal peptide bonds of dibasic amino acids[1].

  • CAS Number: 99676-46-7
  • MF:
  • MW:
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Ralpancizumab

Ralpancizumab is a selective PCSK9 inhibitor with potential application in hemorrhagic stroke[1].

  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Suc-Ala-Ala-Pro-Arg-pNA acetate salt

Suc-AAPR-pNA is a substrate of trypsin acyl-enzymes. Suc-AAPR-pNA can be used to test trypsin acyl-enzymes activity[1][2].

  • CAS Number: 131068-47-8
  • MF: C27H39N9O9
  • MW: 633.65
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Frovocimab

Frovocimab (LY 3015014) is a humanized IgG4 monoclonal antibody (mAb) that neutralizes PCSK9. Frovocimab inhibits PCSK9 binding to LDL receptor (LDLR) while permitting the normal proteolytic cleavage of the bound intact PCSK9[1].

  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

PF-06815345 hydrochloride

PF-06815345 hydrochloride is an orally active and potent inhibitor of proprotein convertase subtilisin/kexin type 9 (PCSK9) with an IC50 value of 13.4 μM. PF-06815345 hydrochloride significantly decreases the PCSK9 level in vivo in mouse[1][2].

  • CAS Number: 2334434-49-8
  • MF: C27H30Cl2FN9O4
  • MW: 634.49
  • Catalog: Ser/Thr Protease
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Bococizumab

Bococizumab (PF-04950615) is an anti-human PCSK9 inhibitory antibody that reduces LDL cholesterol levels. Bococizumab can be used in the research of hypercholesterolemia[1][2].

  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ZK824190

ZK824190 is an orally available and selective urokinase plasminogen activator (uPA) inhibitor as a potential treatment for multiple sclerosis. IC50s of 237, 1600 and 1850 nM for uPA, tPA, and Plasmin, respectively[1].

  • CAS Number: 2254001-81-3
  • MF: C22H20F2N2O4
  • MW: 428.44
  • Catalog: PAI-1
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

H-D-Phe-Phe-Arg-chloromethylketone trifluoroacetate salt

PPACK II is an irreversible and specific glandular and plasma kallikreins inhibitor[1].

  • CAS Number: 74392-49-7
  • MF: C25H33ClN6O3
  • MW: 501.02100
  • Catalog: Ser/Thr Protease
  • Density: 1.308g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Recaticimab

Recaticimab (SHR-1209) is a humanized monoclonal antibody that inhibits PCSK9. Receticimab mediates the degradation of PCSK9 by binding to PCSK9, increasing the level of low-density lipoprotein (LDL) receptors on the surface of hepatocytes, reducing the level of LDL in plasma, and achieving the goal of lowering blood lipids. Recaticimab has potential application in hypercholesterolemia[1][2].

  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Cetraxate HCl

Cetraxate hydrochloride (DV-1006), an orally active anti-ulcer agent with mucosal protective effects, can be used for gastric ulcers research[1]. Cetraxate hydrochloride is a potent acrosomal proteinase acrosin inhibitor with a Ki and an IC50 of 0.94 μM and 3.3 μM, respectively[2].

  • CAS Number: 27724-96-5
  • MF: C17H24ClNO4
  • MW: 341.83000
  • Catalog: Ser/Thr Protease
  • Density: 1.182g/cm3
  • Boiling Point: 480.9ºC at 760mmHg
  • Melting Point: 238-240ºC
  • Flash Point: 244.6ºC