Sigma-Aldrich
Signal Transduction

 Signal Transduction Research Tools

Cell Signaling & Neuroscience
 
  PKH Fluorescent Cell Linker Kits
Analytical Cytology Kits
Cell Growth and Viability Kits
Antibody Purification, Characterization & Modification Kits
Neuronal Dyes and Tracers
Protease Inhibitors
Western Blotting Controls

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PKH Fluorescent Cell Linker Kits 
Product NameProduct # 
PKH2 Green Fluorescent Cell Linker Kit for General Cell Membrane Labeling PKH2-GL
PKH2 Green Fluorescent Cell Linker Kit for Phagocytic Cell Labeling PKH2-PCL
PKH26 Red Fluorescent Cell Linker Kit for General Cell Membrane Labeling PKH26-GL
PKH26 Red Fluorescent Cell Linker Mini Kit, for General Cell Membrane Labeling MINI-26
PKH26 Red Fluorescent Cell Linker Kit for Phagocytic Cell Labeling PKH26-PCL
PKH26 Reference Microbeads P7458
PKH67 Green Fluorescent Cell Linker Kit for General Cell Membrane Labeling PKH67-GL
PKH67 Green Fluorescent Cell Linker Mini Kit, for General Cell Membrane Labeling MINI-67
PKH67 Reference Microbeads P2477
Diluent C Kit for PKH26-GL and PKH67 For general membrane labeling CGL-DIL
Diluent A Kit for PKH2-GL For general membrane labeling GL-DIL
Diluent B Kit for PKH2-PCL and PKH26-PCL For phagocytic cell labeling PCL-DIL
Analytical Cytology Kitsback to top
Product NameProduct # 
Quantum Fluorescence Kit for MESF Units of FITC QMF-2
Quantum Fluorescence Kit for MESF Units of FITC QMF-10
Quantum Fluorescence Kit for MESF Units of PE QMP-2
Quantum Fluorescence Kit for MESF Units of PE QMP-10
Quantum Simply Cellular Microbead Kit QSC-20
Quantum Simply Cellular Microbead Kit QSC-100
QuickCal v2.1 Program for Macintosh QCAL-20
QC Windows QC-WIN
Cell Growth and Viability Kitsback to top
Product NameProduct # 
Cell Growth Determination Kit, MTT based CGD-1
In Vitro Toxicology Assay Kit, Lactic Dehydrogenase based TOX-7
In Vitro Toxicology Assay Kit, MTT based TOX-1
In Vitro Toxicology Assay Kit, Neutral Red based TOX-4
In Vitro Toxicology Assay Kit, Resazurin based TOX-8
In Vitro Toxicology Assay Kit, Sulforhodamine B based TOX-6
In Vitro Toxicology Assay Kit, XTT based TOX-2
Antibody Purification, Characterization & Modification Kitsback to top
Product NameProduct # 
ImmunoProbeä Biotinylation Kit BK-101
BiotinTagä Micro Biotinylation Kit B-TAG
Biotinylation Kit, Cleavable BK-200
FluoroTagä FITC Conjugation Kit FITC-1
Maleimide Activated BSA, KLH Conjugation Kit MBK-1
Protein A Antibody Purification Kit PURE-1A
Protein G Immunoprecipitation Kit IP-50
Neuronal Dyes and Tracersback to top
Product NameProduct # 
a-Bungarotoxin–FITC labeled from Bungarus multicinctus T9641
Diamidino yellow dihydrochloride D0281
Lucifer Yellow CH dilithium salt L0259
Lucifer Yellow CH dipotassium salt L0144
Nuclear Yellow N2137
True Blue aceturate salt T5891
For information on Nerve Terminal Stain Kits, click here.
Protease Inhibitorsback to top
Product NameProduct # 
Amastatin hydrochloride ³97 % (HPLC)A1276
4-Amidinophenylmethanesulfonyl fluoride hydrochloride A6664
4-(2-Aminoethyl)benzenesulfonyl fluoride hydrochloride ~97 %A8456
a1-Antichymotrypsin from human plasma ~95 % (SDS-PAGE) Lyophilized powderA9285
Antipain hydrochloride A6191
a1-Antitrypsin from human plasma Salt-free, lyophilized powderA9024
a1-Antitrypsin from human plasma Salt-free, lyophilized powderA6150
Aprotinin bovine lung Saline solution 3-7 TIU/mg proteinA6279
Aprotinin bovine lung Lyophilized powder 3-7 TIU/mg solidA1153
Aprotinin bovine lung Lyophilized powder 3-7 TIU/mg solidA4529
Aprotinin bovine lung Lyophilized powder 3-7 TIU/mg solid cell culture testedA3428
Bestatin hydrochloride ³98 % (HPLC)B8385
Chymostatin microbialC7268
Cyclohexylstatine >98 % (TLC)C8732
Cystatin from chicken egg white Buffered aqueous glycerol solutionC0408
Cystatin from chicken egg white Lyophilized powderC8917
3,4-Dichloroisocoumarin D7910
2,2'-Bipyridyl 99 % (GC)D7505
E-64 E3132
E-64c E0514
E-64d E8640
Ebelactone B microbial ³95 % (HPLC)E0886
Ecotin recombinant, expressed in Escherichia coli ³90 % (SDS-PAGE) Essentially salt-free, lyophilized powder ³2000 units/mg proteinE1398
Elastatinal microbial ~50 %E0881
Epiamastatin hydrochloride ³97 % (HPLC)E3389
Fisonate ³99 % (NMR) solidF6051
Gabexate mesylate solidG2417
Histatin 5 ³97 % (HPLC)H6027
Leupeptin hemisulfate salt microbial ³90 % (HPLC)L2884
Leupeptin hydrochloride microbial ³70 % (HPLC)L0649
Leupeptin trifluoroacetate salt ³90 % (HPLC) microbialL2023
(2R)-2-Mercaptomethyl-4-methylpentanoyl-b-(2-naphthyl)-Ala-Ala Amide ³95 % (TLC)M3531
Pepstatin A microbial ³90 % (HPLC)P5318
Pepstatin A microbial ³75 % (HPLC)P4265
1,10-Phenanthroline monohydrate reagent gradeP9375
Phenylmethanesulfonyl fluoride >99 % (GC)P7626
Phosphoramidon disodium salt ³97 % (TLC)R7385
Propionyl-leupeptin hemisulfate salt ³90 % (HPLC)L3402
Protease Inhibitor Cocktail for General Use Lyophilized powderP2714
Protease Inhibitor Cocktail for use in Tissue Culture Media DMSO solutionP1860
Protease Inhibitor Cocktail for use with bacterial cell extracts Lyophilized powderP8465
Protease Inhibitor Cocktail for use with fungal and yeast extracts DMSO solutionP8215
Protease Inhibitor Cocktail for use with mammalian cell and tissue extracts DMSO solutionP8340
Protease Inhibitor Cocktail for plant cell and tissue extracts DMSO solutionP9599
Protease Inhibitor Cocktail for use in purification of Histidine-tagged proteins DMSO solutionP8849
Na-p-Tosyl-L-lysine chloromethyl ketone hydrochloride ³97 % (TLC) powderT7254
N-p-Tosyl-L-phenylalanine chloromethyl ketone ³97 % (TLC) powderT4376
Trypsin inhibitor from Glycine max (soybean) Type I-S Lyophilized powderT9003
Trypsin inhibitor from Glycine max (soybean) 1% solution in water (contains no buffers)T9008
Trypsin inhibitor from chicken egg white Type III-O (free of ovoinhibitor)T2011
Trypsin inhibitor from bovine pancreas Type I-P Essentially salt-free, lyophilized powderT0256
D-Val-Leu-Lys-chloromethyl ketone ³90 % (HPLC) White powderV3763
Western Blotting Controlsback to top
Product NameProduct # 
HL-60 Cell Extract, Induced Solution in SDS-PAGE loading bufferC4224
HL-60 Cell Extract, Noninduced Solution in SDS-PAGE loading bufferC4349
Mouse Brain Extract 5 mg/mL in SDS-PAGE loading bufferB6928
Poly(ADP-ribose) Polymerase human 0.5 mg/mL in SDS-PAGE loading buffer recombinant, expressed in Escherichia coliP4730
Poly(ADP-ribose) Polymerase Automodified bovine solutionP4855
Rat Brain Extract 5 mg/mL in SDS-PAGE loading buffer suitable for positive control in immunoblotting techniquesB7053
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