Up to 25% - End-of-Year Promotion on Protein Purification Products

Take advantage of up to 25% on premium protein purification products — 20% off Cube Biotech’s Ni-INDIGO His-Tag range for purer proteins with higher yields and 25% off IBA Lifesciences’ Strep-Tactin®(XT) 4Flow® resins for exceptionally pure, native, and demanding proteins.

Offers valid until 31st Dec 2025. Not summable with other discounts.

Ni-INDIGO - Revolutionize His-Tag Protein Purification

Cube Biotech’s Ni-INDIGO technology enables purer proteins, higher yields, and unmatched stability

  • Up to 5× higher binding capacity compared to conventional Ni-NTA resins
  • Up to 30× less Ni²⁺ ion leakage for cleaner, safer protein samples
  • No nickel recharging required — save up to 50% regeneration time
  • Compatible with DTT, EDTA, urea, TCEP, citrate, GuHCl
  • 3× more robust under denaturing conditions
  • Reduces contamination from Co, Fe, Mn, and Zn

Cube Biotech's Ni-INDIGO Products

HisCube-Ni-INDIGO His-Tag Purification Kits

Ready-to-use kits combining high-performance Ni-INDIGO resin with convenient mini or midi columns for fast, efficient small- to mid-scale His-tag protein purification. Deliver high yield and purity even in the presence of EDTA or DTT.

mini-kit_ni-INDIGO

PureCube 100 INDIGO Ni-Agarose

High-performance Ni-INDIGO agarose resin offering exceptional binding capacity and metal stability. Enables reproducible, high-purity His-tag protein purification under both native and denaturing conditions.

Ni-INDIGO Agarose
NI-INDIGO Technology

Ni-INDIGO Data

Ni-INDIGO Technology Data

Strep-Tactin® 4Flow® -
Purification of Strep-tag®II and Twin-Strep-tag® proteins

IBA's Strep-Tactin® 4Flow® family provides exceptional purity for demanding proteins

  • Unparalleled purity — >95 % in a single purification step
  • High selectivity and exceptional affinity
  • High binding capacity for efficient recovery even from dilute samples
  • Ideal for native and sensitive proteins that require mild elution
  • Preserves native conformation and activity through gentle, biotin-based elution
  • Robust across buffer conditions: compatible with high salts, detergents, metal ions, chelators, and reducing agents
  • Reproducible, reusable, and reliable

Strep-Tactin® 4Flow® Products

Strep-Tactin® 4Flow® High Capacity; 50 % Suspension

High-capacity agarose resin for efficient, one-step purification of Strep-tag II or Twin-Strep-tag proteins.

Ideal for native, sensitive proteins and fully compatible with diverse buffer conditions and FPLC workflows.

  • High yields up to 31 mg/mL resin
  • >95 % purity in one step
  • Mild elution with desthiobiotin

Strep-Tactin®XT 4Flow®; 50 % Suspension

Next-generation agarose resin featuring picomolar affinity for the Twin-Strep-tag®. Provides unmatched binding strength and stability.

Ideal for analytical and pull-down applications, low-abundance or difficult-to-express proteins.

  • Ultra-high affinity 
  • >95 % purity
  • Gentle desthiobiotin elution

Strep-Tactin®XT 4Flow® High Capacity; 50 % Suspension

Combines picomolar affinity with a high-capacity 4Flow® agarose matrix, this resin delivers exceptional yield and purity in a single step.

Ideal for high-throughput purification of fragile, multi-subunit, or functional proteins.

  • Highest yield: up to 31 mg/mL resin
  • Picomolar-range affinity
  • Exceptional selectivity & purity
  • Mild elution 

Strep-Tactin®XT 4Flow® Data

IBA Strep-Tactin 4Flow Data
4Flow High Capacity Kit