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Immunohistochemistry Resource Guide

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IHC Guide Cover v1

Enzyme Substrate Properties

See also Enzyme Substrate Combinations for multiple antigen labeling and Counterstain/Substrate Compatibility.

SubstrateColorCatalog NumberMicroscopyMountingContrast in Pigmented TissueMultiple LabelingHeat Resistant*
Bright- fieldDarkfieldElectronFluore- scenceSpectral Imaging
Peroxidase
Vector® DABBrownSK-4100 Non-aqueous or Aqueous 
Vector® DAB +NiGray-BlackSK-4100 Non-aqueous  
ImmPACT® DABBrownSK-4105 Non-aqueous or Aqueous 
ImmPACT® DAB EqVBrownSK-4103 Non-aqueous or Aqueous 
Vector® VIPPurpleSK-4600 Non-aqueous 
ImmPACT® VIPPurpleSK-4605 Non-aqueous 
Vector® SGBlue-GraySK-4700 Non-aqueous or Aqueous 
ImmPACT® SGBlue-GraySK-4705 Non-aqueous or Aqueous 
Vector® NovaRED®RedSK-4800 Non-aqueous 
ImmPACT® NovaRED®RedSK-4805 Non-aqueous 
Vector® AECRedSK-4200   Aqueous 
ImmPACT® AECRedSK-4205   Aqueous 
ImmPACT® AMEC RedRedSK-4285   Aqueous 
TMBBlueSK-4400   Non-aqueous   
Alkaline Phosphatase
Vector® RedMagentaSK-5100  Non-aqueous or Aqueous
ImmPACT® Vector® RedMagentaSK-5105  Non-aqueous or Aqueous
Vector® BlueBlueSK-5300  Non-aqueous or Aqueous
Vector® BlackBrown-BlackSK-5200    Non-aqueous   
BCIP/NBTIndigoSK-5400  Non-aqueous or Aqueous 

* Substrates that are designated “heat resistant” were developed on tissue then subjected to heat induced epitope retrival (HIER) using a pressure cooker technique (stained tissue was pressure cooked for 1 minute in Antigen Unmasking Solution, returned to room temperature, and rinsed in buffer). Resulting sensitivity after this treatment was found to be equivalent to non-HIER treated tissue.

image 50

Prostate: Prostate Specific Antigen (m), ImmPRESS Reagent (HRP), ImmPACT DAB (brown).d), Hematoxylin QS (blue).

image 52

Tonsil: Cytokeratin AE1/AE3 (m), ImmPRESS Reagent (HRP), Vector DAB-Ni (gray-black).

image 54

Tonsil: Cytokeratin AE1/AE3 (m), Vector ImmPRESS- AP Reagent, ImmPACT Vector Red (magenta).

image 55

Tonsil: Cytokeratin AE1/AE3 (m), ImmPRESS Reagent (HRP), ImmPACT SG (blue-gray).ylin QS (blue).

image 58

Tumor: Cytokeratin (s), VECTASTAIN® Elite® ABC Kit, TMB (blue).

image 60

Tonsil: Cytokeratin AE1/AE3 (m), ImmPRESS-AP Reagent, Vector Blue (blue).

image 62

Tonsil: Cytokeratin AE1/AE3 (m), ImmPRESS Reagent (HRP), ImmPACT NovaRED (red).EC (red), Hematoxylin QS (blue).

image 69

Prostate: Prostate Specific Antigen (m), ImmPRESS Reagent (HRP), ImmPACT AEC (red).

image 71

Colon Carcinoma: Pan-Cytokeratin (m), VECTASTAIN ABC-AP Kit, Vector Black (brown-black).

image 64

Tonsil: CD20 (m), ImmPRESS Reagent (HRP), ImmPACT VIP (purple).

image 73

Tonsil: LCA (m), ImmPRESS Reagent (HRP), ImmPACT AMEC Red (red).

image 75

Prostate: Prostate Specific Antigen (m), VECTASTAIN ABC-AP Kit, BCIP/NBT (indigo).

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