SMART Digest™ ImmunoAffinity (IA) Protein A Kits
SMART Digest™ ImmunoAffinity (IA) Protein A Kits
Actual product may vary
Thermo Scientific™

SMART Digest™ ImmunoAffinity (IA) Protein A Kits

Obtain fast, simple, highly reproducible, and sensitive immunocapture and protein digestion in a single well for your biomarker studies.

Have Questions?
Change viewbuttonViewtableView
Catalog NumberDescription
60111-103SMART Digest IA Kit, Protein A magnetic with SOLAμ SPE and collection plate
60111-101SMART Digest IA Kit, Protein A non-magnetic
60111-102SMART Digest IA Kit, Protein A non-magnetic with SOLAμ SPE and collection plate
60111-104SMART Digest IA Kit, Protein A magnetic
Catalog number 60111-103
Price (USD)
1,788.37
Each
Add to cart
Description:
SMART Digest IA Kit, Protein A magnetic with SOLAμ SPE and collection plate
Price (USD)
1,788.37
Each
Add to cart

Obtain fast, simple, highly reproducible, and sensitive immunocapture and protein digestion in a single well using Thermo Scientific™ SMART Digest™ ImmunoAffinity (IA) Protein A Kits. These kits were designed to remove the challenges often associated with the process of biomarker quantitation by providing a simple and easy capture-digestion workflow that takes only hours instead of overnight. The SMART Digest IA Protein A Kits target purification of immunoglobulins due to the strong affinity for binding to the Fc portion of the molecule.

Solving the challenges of low-level quantitation in complex matrices

The need to identify low-level biomarkers is forcing the analytical community to deal with extremely high levels of analyte and sample complexity, which makes quantitation challenging.

As these proteins are often present at low levels in complex biological matrices, an immunoaffinity capture step is typically employed to purify the sample and increase sensitivity. This step is often followed by protein digestion. Current processes are often time consuming, multistep, and prone to irreproducibility.

Immunocapture and Protein Digestion in a Single Well

These IA kits deliver a process that is:

  • Fast
  • Simple
  • Highly reproducible
  • Sensitive
Unique Design Reduces Workflow to Hours

In SMART Digest IA Kits, the immunocapture reagents and the temperature-activated, thermally stable trypsin are co-immobilized onto a resin. Following enrichment, the enzyme is activated at elevated temperatures for accelerated digestion under protein denaturing conditions, resulting in a workflow which takes hours rather than overnight.

Specifications
DescriptionSMART Digest IA Kit, Protein A magnetic with SOLAμ SPE and collection plate
CaptureProtein A
CleavageC-terminal side of lysine and arginine amino acids
EnzymeTrypsin
FormatSMART Digest Resin, Magnetic
For Use With (Application)Peptide Quantitation
Product LineSMART Digest
TypeImmunocapture + Protein Digestion combined on a single bead
IncludesMagnetic SMART Digest Resin, Collection Plate, SOLAμ SPE Plate
Unit SizeEach

Frequently asked questions (FAQs)

How compatible are the SMART Digest ImmunoAffinity (IA) Kits with detergents (e.g. CHAPS, OGS, TWEEN and RIPA)?

We have observed the following effects with detergents:
• CHAPS – ~ 30% reduction in digest efficiency
• OGS – No reduction in digestion efficiency
• TWEEN – No reduction in digestion efficiency
• RIPA – The addition of RIPA, for ribonuclease A digestion, results in a concentration-dependent effect, where initial enzyme inhibition is overcome by improved substrate solubilization at higher concentrations only. 20% reduction in digestion efficiency.

We recommend compensating for reduction in digestion efficiency by extending the digestion time accordingly.

How much urea can I use with the SMART Digest ImmunoAffinity (IA) Kits?

The SMART Digest kits are not affected by concentrations of up to 0.5M of urea. If the concentration is higher than this, we recommend that the sample is diluted to <0.5 M of urea, prior to beginning digestion using the SMART Digest kit.

What is the composition of the SMART Digest IA buffer that comes in the SMART Digest ImmunoAffinity (IA) Kit?

The composition of the SMART Digest IA buffer is as follows:
Chemical Name (CAS No., EINECS No.): Kit Component Qty, Weight %
• Water (7732-18-5, 231-791-2): 2, 50-95%
• Glycerol (56-81-5, 200-289-5): 2, < 20%
• Tris Base (77-86-1, 201-064-4): 2, < 10%
• Tris-HCI (1185-53-1, 214-684-5): 2, < 10%
• Calcium Chloride (10043-52-4, 233-140-8): 2, < 10%
• Sodium Azide (26628-22-8, 247-852-1): 2, < 0.1%

Why don't I need to quantitate the total amount of protein and titer the enzyme when using the SMART Digest ImmunoAffinity (IA) Kits?

The SMART Digest IA Kits contain an excess of enzyme capable of digesting between 200 pg and 3.5 mg of protein. As most samples will fall within this range, it is not necessary to routinely quantitate protein concentration prior to digestion.

Why don't I need to use urea to unfold the protein when using SMART Digest ImmunoAffinity (IA) Kits?

The reason urea is needed as a first step in an in-solution protocol is to disrupt the sample and partially unfold the proteins. The proteins need to be partially unfolded so that the trypsin enzyme can have better access to the internal amino acid chain, not just the surface of the protein of interest. The reason the SMART Digest IA kits do not need urea is that it uses heat to unfold the protein.