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Molecule Parameter List for EGFR

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
EGFR participated asMoleculeSum total ofEnzymeSubstrate of an enzymeProduct of an enzymeSubstrate in ReactionProduct in Reaction
No. of occurrences1000010

Accession and Pathway Details
Accession NameAccession No.Accession TypePathway Link
EGFR_MAPK58Network
Shared_Object_EGFR_MAPK MAPK Ras 
EGFR Sos 
Model of MAPK activation by EGFR in the synapse. Demonstration programs using this model are available here.
Primary citation:Bhalla US. Biophys J. (2004) 87(2):745-53.

EGFR acting as a Molecule in  
EGFR_MAPK Network
NameAccession NamePathway NameInitial Conc.
(uM)
Volume
(fL)
Buffered
EGFREGFR_MAPK
Accession No. : 58
EGFR
Pathway No. : 232
0.16671000No
Berkers et al JBC 266 say 22K hi aff recs. Sherrill and Kyte Biochemistry 35 use range 4-200 nM. These match, lets use them.

EGFR acting as a Substrate in a reaction in  
EGFR_MAPK 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.
NameAccession NamePathway NameKfKbKdtauReagents
act_EGFREGFR_MAPK
Accession No. : 58
EGFR
Pathway No. : 232
4.2
(uM^-1 s^-1)
0.25
(s^-1)
Kd(bf) = 0.0595(uM)-Substrate
EGF
EGFR

Product
L.EGFR
Affinity of EGFR for EGF is complex: depends on [EGFR]. We'll assume fixed [EGFR] and use exptal affinity ~20 nM (see Sherrill and Kyte Biochem 1996 35 5705-5718, Berkers et al JBC 266:2 922-927 1991, Sorokin et al JBC 269:13 9752-9759 1994). Tau =~2 min (Davis et al JBC 263:11 5373-5379 1988) or Berkers Kass = 6.2e5/M/sec, Kdiss=3.5e-4/sec. Sherrill and Kyte have Hill Coeff=1.7



Database compilation and code copyright (C) 2022, Upinder S. Bhalla and NCBS/TIFR
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