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Molecule Parameter List for Glu | The statistics table lists the distribution of a molecule acting either as a substrate, product, enzyme or as a molecule within the network. The text color of a molecule is highlighted by color. | Statistics |
Glu participated as | Molecule | Sum total of | Enzyme | Substrate of an enzyme | Product of an enzyme | Substrate in Reaction | Product in Reaction | No. of occurrences | 1 | 0 | 0 | 0 | 0 | 2 | 0 |
Accession and Pathway Details | |
Accession Name | Accession No. | Accession Type | Pathway Link | Ajay_Bhalla_ 2004_Feedback_ Tuning | 78 | Network | Shared_Object_Ajay_Bhalla_2004_Feedback_Tuning, PKC, PLA2, PLCbeta, Gq, MAPK, Ras, EGFR, Sos, PLC_g, CaMKII, CaM, PP1, PP2B, PKA, AC | This model is taken from Ajay SM, Bhalla US. Eur J Neurosci. 2004 Nov;20(10):2671-80. This is the feedback model from Figure 8a. |
Glu acting as a Molecule in Ajay_Bhalla_2004_Feedback_Tuning Network
Name | Accession Name | Pathway Name | Initial Conc. (uM) | Volume (fL) | Buffered | Glu | Ajay_Bhalla_ 2004_Feedback_ Tuning Accession No. : 78 | Shared_Object_ Ajay_Bhalla_ 2004_Feedback_ Tuning Pathway No. : 347 | 0 | 1.5 | Yes | Varying the amount of (steady state) glu between .01 uM and up, the final amount of G*GTP complex does not change much. This means that the system should be reasonably robust wr to the amount of glu in the synaptic cleft. It would be nice to know how fast it is removed. |
Glu acting as a Substrate in a reaction in Ajay_Bhalla_2004_Feedback_Tuning Network
Kd is calculated only for second order reactions, like nA+nB <->nC or nA<->nC+nD, where n is number and A,B,C,D are molecules, where as for first order reactions Keq is calculated.
Kd for higher order reaction are not consider. |
| Name | Accession Name | Pathway Name | Kf | Kb | Kd | tau | Reagents | 1 | RecLigandBinding | Ajay_Bhalla_ 2004_Feedback_ Tuning Accession No. : 78 | Gq Pathway No. : 351 | 16.8003 (uM^-1 s^-1) | 10 (s^-1) | Kd(bf) = 0.5952(uM) | - | Substrate Glu mGluR
Product Rec-Glu
| | kf = kf from text = 1e7 / M / sec = 10 /uM/sec = 10 / 6e5 / # / sec = 1.67e-5 kb = kr from text = 60 / sec Note that we continue to use uM here since [phenylephrine] is also in uM. From Martin et al FEBS Lett 316:2 191-196 1993 we have Kd = 600 nM Assuming kb = 10/sec, we get kf = 10/(0.6 uM * 6e5) = 2.8e-5 1/sec/# | 2 | Glu-bind-Rec-Gq | Ajay_Bhalla_ 2004_Feedback_ Tuning Accession No. : 78 | Gq Pathway No. : 351 | 16.8003 (uM^-1 s^-1) | 0.1 (s^-1) | Kd(bf) = 0.006(uM) | - | Substrate Glu Rec-Gq
Product Rec-Glu-Gq
| | From Fay et al kb3 = kb = 1.06e-3 which is rather slow. k+1 = kf = 2.8e7 /M/sec= 4.67e-5/sec use 5e-5. However, the Kd from Martin et al may be more appropriate, as this is Glu not the system from Fay. kf = 2.8e-5, kb = 10 Let us compromise. since we have the Fay model, keep kf = k+1 = 2.8e-5. But kb (k-3) is .01 * k-1 from Fay. Scaling by .01, kb = .01 * 10 = 0.1 |
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