Spectral evidence for non-calcium interactions of intracellular Indo-1.
Spectral evidence for non-calcium interactions of intracellular Indo-1.
复制标题
细胞内 Indo-1 非钙相互作用的光谱证据。
DOI:
10.1016/0006-291x(89)92139-6
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发表时间:
1989
影响因子:
3.1
通讯作者:
R. Shuler
中科院分区:
文献类型:
--
作者:
C. Owen;R. Shuler
Indo-1 is widely used to measure intracellular free calcium, [Ca2+]i, by comparing the fluorescence emission at 2 or more wavelengths with the emissions, which are assumed to be known, of Indo-1 when it is fully calcium-bound and when it is fully calcium-free. Accurate quantitation requires that these “reference” values be obtained on intracellular dye, and the full spectra of this study show that the reason is a significant spectral shift of the calcium-free peak, but not the calcium-bound. A mathematical analysis shows that the new peak must be a new state of the Indo-1 molecule, since it cannot be simply due to residual calcium in the cell. When intracellular “reference” spectra were used in the data analysis, [Ca2+]icould be calculated from whole spectra or from the ratio of observations at two wavelengths with good agreement. When extracellular “reference” spectra were used, the value calculated by the ratio method depended on the choice of wavelengths.
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DOI:
--
发表时间:
1986
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Ransom,JT;Cambier,JC
通讯作者:
Cambier,JC
DOI:
--
发表时间:
1987
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Gold,MR;DeFranco,AL
通讯作者:
DeFranco,AL
DOI:
--
发表时间:
1987
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Wilson,HA;Greenblatt,D;Taylor,CW;Putney,JW;Tsien,RY;Finkelman,FD;Chused,TM
通讯作者:
Chused,TM
影响因子:
4.4
作者:
P. S. Rabinovitch;Carl H. June;Angelika Grossmann;Jeffrey A. Ledbetter
通讯作者:
P. S. Rabinovitch;Carl H. June;Angelika Grossmann;Jeffrey A. Ledbetter