Cookies help us deliver our services. By using our services, you agree to our use of cookies. More information

SUIT-003 O2 ce D009

From Bioblast
Revision as of 15:39, 15 March 2017 by Komlodi Timea (talk | contribs)


high-resolution terminology - matching measurements at high-resolution


SUIT-003 O2 ce D009

Description

150px

Abbreviation: RLE

Reference: A Huetter 2004 Biochem J


MitoPedia concepts: SUIT protocol, SUIT A 

SUIT-category: RLE
SUIT protocol pattern: linear coupling control protocol (CCP)


References

R;L;E format ROX.jpg
  • The CCP diagram may show the respiratory states directly (left) as an alternative to presenting the titration steps.
  • Rot and Ama
In this CCP, ROX is measured after titration of rotenone, antimycin A, or both in a single step. Validity of using rotenone only for inducing ROX in intact cells is evaluated by stepwise measurement of ROX after titration of rotenone (3Rot) followed by titration of animycin A (4Ama).
1R;2Omy;3U;4Rot;5Ama.jpg

1R;1Omy;2U;3Rot;4Ama

  • 1R;1Omy;2U;3Rot;4Ama
  • Rot and Ama
In this CCP, ROX is measured after stepwise titration of rotenone (3Rot) and antimycin A (4Ama). In many intact cells ROX measured after titration of rotenone (3Rot) is not or only slightly further inhibited by subsequent titration of animycin A (4Ama).
CCP intact cells (fibroblasts)


Respiration in senescent human primary fibroblasts (0.2×106 cells/ml). Arrows show steps in the titration regime of the coupling control protocol, inducing the following respiratory states: ROUTINE (R; routine state in cell-culture medium); LEAK (L; inhibition of ATPsynthase by 1 μg/ml oligomycin); ETS (E; maximal stimulation by uncoupling of oxidative phosphorylation in four subsequent titrations of the uncoupler, U, FCCP (2.5–4 μM final concentration); ROX (rotenone, Rot, and antimycin A; residual oxygen consumption). Modified after Huetter_2004_Biochem J.
  • Hütter E, Renner K, Pfister G, Stöckl P, Jansen-Dürr P, Gnaiger E (2004) Senescence-associated changes in respiration and oxidative phosphorylation in primary human fibroblasts. Biochem J 380:919-28. - »Bioblast link«