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Available measurements

We can assist with measurement of interactions of proteins with other proteins, RNA, lipids and carbohydrates. We can also perform fully automated iso thermal calorimetry. In addition, we can do real-time quantification of binding of fluorescently labeled biomolecules or bacterial cells to immobilized cells or receptors.

Affinity Measurements Instruments

Biacore 3000

 
More Details
  • Location:
    The room is: Building KBC, 6th floor, room A5 39 07.
    Directions using digital map
  • Price:
    • 1650 SEK/day
    • Introduction/driver license Cost is 1500 SEK (2x half days)
  • About:

    Protein – Protein
    Protein – DNA
    Protein – Small molecule or fragment.
    Protein – Carbohydrate
    Protein – Lipid or Membrane / Liposome interactions
    Protein – RNA

    By attaching one of your targets (the ligand) onto a chip surface and then flowing over your other target (analyte) the biacores optical sensors measures the change in mass bound to the chip. Various commercial chips allow you to attach your ligands in different ways depending on your material. The most common ones are through His-tags, Amine coupling or Biotin-tags.  

    With the kinetic assays you can determine association, dissociation and binding constants for your interactions. This older version of the Biacore gives the user the option of doing “manual” injections to better optimize their running conditions and also create their own scripts for reproducible workflows. For the less experienced one you can also use the application wizard templates and be guided through your experiments step by step with the internal software.

Proteon XPR36

 
More Details
  • Location:
    The room is: Building KBC, 6th floor, room A5 39 07.
    Directions using digital map
  • Price:
    • 500 SEK/day
    • Introduction/driver license Cost is 1500 SEK (2x half days)
  • About:

    The ProteOn XPR36 is an SPR based biosensor from BIO-RAD. The measuring principles are the same as for the Biacore3000 system in the regards that it is measuring the change in mass bound to the chip.  The main difference to the Biacore system is that it is capable of 6 simultaneous injection over 6 different flowcell surfaces. The other key difference is the thickness of the capillaries in the systems, the ProteOn has wider capillaries and is therefore more robust and less sensitive to clogging. The trade off for this is that the sensitivity is slightly lower in comparison to the Biacore.

Auto-ITC200

 
More Details
  • Location:
    The room is: Building KBC, 6th floor, room A5 39 07.
    Directions using digital map
  • Price:
    • 1000 SEK/day
    • Introduction/driver license Cost is 1000 SEK (half a day)
  • About:
    Auto-ITC200 is a fully automatec isothermal caliometry system that measures affinity based on heat exchange when two molecules interact. It can be used to determine the dissociation constant, enthalpy, entropy and stoichiometry of interactions. The most common applications are protein-protein and protein-small molecule interactions, but it will be able to measure any type of interaction that gives of a large enough signal. IN comparison with the SPR systems the ITC measures in solution and not bound on surfaces, so while you may need more materal compared to the SPR approach, you will not need to worry about any surface immobilizaton.

LigandTracer® Green

 
More Details
  • Location:
    The room is: Building KBC, 6th floor, room A6 31 01.
    Directions using digital map
  • Price:
    500 SEK/day
    Introduction/driver license Cost is 1500 SEK
  • About:
    • LigandTracer® Green – an instrument for real-time quantification of binding of fluorescently labeled biomolecules or bacterial cells to immobilized cells or receptors.
    • LigandTracer® Green offers a simple and accurate method for detection and quantification of biomolecular/cells interactions in real‐time using fluorescently labeled biomolecules.
    • Measurements of e.g. on‐off rate, affinity or retention can be made using blue (~488nm) and green (~535nm) fluorophores, e.g. FITC, Alexa Fluor® 488, as labels. A detector for Yellow (590nm) - Red (632nm) for Rhodamine Red and similar fluorophores is also available.

J-1700 CD Spectrometer

 
More Details
  • Documentation: J-1700 CD Spectrometer
  • Location: Room A52907
    Directions using digital map
  • Price:
    • Full 24 hours – 800kr
    • 8 hours during the day – 600kr
    • 6 hours during the day – 500kr
    • 4 hours during the day – 400kr
    • 2 hours during the day – 300kr
    • Odd hours 18-08 - 300kr/booking
    • Introduction/drivers license (2hours) - 1000kr
  • About:
    The CD is a form of light absorbtion spectroscopy that measures the the difference in absorbance of right- and left-circulary polarized light. The machine is most commonly used for protein conformations and structural analysis of biomolecules. 
  • Some features of the CD: 
    • Wavelength range 163 - 2500nm
    • Simulatnious Multi-Probe (SMP): CD, LD, flourescense, UV-visible, absorbance
    • Three scanning modes: auto, step and continuous
The CD has also been installed with a karusell for 6 cuvettes to allow measurements 6 samples at a time.  
It also comes with a thermoregulation module that allows you to perform temperature gradient measurments.

Quartz Crystal Microbalance with Dissipation monitoring (QCM-D)

More Details
 
 
  • Location:
    The room is: Building 6M, 4th floor, room 6070.
    6070, 6M, Norrlands universitetssjukhus Nus - MazeMap
  • Price:
    500 SEK/day
    Introduction/driver license Cost is 1500 SEK
  • Contact Person:
    Hudson Pace (hudson.pace@umu.se)
  • About:
    Quartz Crystal Microbalance with Dissipation monitoring (QCM-D) is a label free technique that allows for the real-time monitoring of changes in both mass adsorbed to the sensor surface and in the viscoelastic properties of materials adsorbed to the sensor surface. While this instrument can be used for a wide variety of experiments ranging from materials science to health care, the host lab commonly uses it to study how proteins interact with lipid membranes and/or for investigating protein-protein interactions. While SPR instruments (also available at BICU) provide the dry mass of the adsorbed protein, this instrument measures the hydrated mass which when combined with the dissipation monitoring allows, among other, changes in packing density of proteins interacting with the surface to be resolved.
    More Information can be found here: https://awsensors.com/quartz-crystal-microbalance/

 

Refeyn TwoMP – Mass Photomotry

Mass Photometer

Mass Photometer, BioMolecular Characterization Umeå, BICU

ImageRonnie Berntsson
Documentation: Refeyn TwoMP
Location:
Price:
1 hour – 150 SEK
Full day – 600 SEK
About:
Mass photometry allows you to rapidly determine the molecular weight (or mass) of objects larger than 40 kDa in size. The machine is most commonly used to determine oligomeric state of proteins. A single measurements is performed in a few minutes.

ITC200

ITC200

ITC200, BioMolecular Characterization Umeå, BICU

ImageRonnie Berntsson
Location:
Price:
1000 SEK/day
Introduction/driver license Cost is 1000 SEK (half a day)
About:
ITC200 is a isothermal calorimetry system that measures affinity based on heat exchange when two molecules interact. It can be used to determine the dissociation constant, enthalpy, entropy and stoichiometry of interactions.
The most common applications are protein-protein and protein-small molecule interactions, but it will be able to measure any type of interaction that gives of a large enough signal. In comparison with the SPR systems the ITC measures in solution and not bound on surfaces, so while you may need more materal compared to the SPR approach, you will not need to worry about any surface immobilizaton.
In comparison to the Auto-ITC200, this machine will provide the same quality of data, but is not automated. An advantage is though that it uses less material than the Auto-ITC200.
 
 
Latest update: 2023-09-12