If this reaction does not take place, phenylalanine accumulates and tyrosine is deficient.

If a receptor tyrosine kinase ( RTK ) is involved in activating the pathway, the isozyme PLC-γ has tyrosine residues that can become phosphorylated upon activation of an RTK, and this will activate PLC-γ and allow it to cleave PIP < sub > 2 </ sub > into DAG and IP < sub > 3 </ sub >.

If the homodimer fails to form, efficient tyrosine phosphorylation of DAB1 in vitro fails.

If an investigation involves a protein that requires tyrosine phosphorylation, the kinase must be supplied in the form of a tyrosine kinase gene.

If we cannot stop warfare in our own economic system, how can we expect to abolish it internationally??

If your house is to have a forced warm air system, cooling can be a part of it.

If you plan to add cooling later to your heating system, there are things to watch for.

If the problems of combining cooling with your heating are knotty, it may be cheaper to plan on a completely separate cooling system.

If you use one of the new year-round cooling system fluids such as `` Dowguard '' be sure to check it.

If Af is the change per unit volume in Gibbs function caused by the shear field at constant P and T, and **yr is the density of the fluid, then the total potential energy of the system above the reference height is Af.

If the house is not wired adequately for electricity or if plumbing or a central heating system must be installed, check into the cost of making these improvements.

If laborers are merely commodities competing against each other in a market place like so many bags of wheat and corn ( unsupported, by the way, by any agricultural subsidy ), then they may be pardoned for reacting with complete antagonism to a system that imposes such status upon them.

If the demands of these two sovereigns upon his duty of allegiance come into conflict, those of the United States have the paramount authority in American law ; likewise, those of the foreign land have paramount authority in their legal system.

If we use a cylindrical coordinate system with basis vectors, then the gradient of and the divergence of are given by

If under the existing system he could not assemble forces quickly enough to intercept mobile Viking raiders, the obvious answer was to have a standing field force.

If administrative appeal is available, no appeal to the judicial system may be made.

If the system be entirely behind the aperture stop, then this is itself the entrance pupil ( front stop ); if entirely in front, it is the exit pupil ( back stop ).

If the object point be infinitely distant, all rays received by the first member of the system are parallel, and their intersections, after traversing the system, vary according to their perpendicular height of incidence, i. e. their distance from the axis.

If a system consists of several particles, the total angular momentum about a point can be obtained by adding ( or integrating ) all the angular momenta of the constituent particles.

If not, the system may either be rejected or accepted on conditions previously agreed between the sponsor and the manufacturer.

If the pressure in a system remains constant ( isobaric ), a vapor at saturation temperature will begin to condense into its liquid phase as thermal energy ( heat ) is removed.

If a newer system is attempting to achieve integration with an older system which has known flaws ( or " bugs "), then the new system may be referred to as " bugwards-compatible ".

If a system is composed of two subsystems described in V and W respectively, then the Hilbert space of the entire system is the tensor product of the two spaces.

" That rich island ," he wrote on 1 December 1881, " the key to the Gulf of Mexico, is, though in the hands of Spain, a part of the American commercial system … If ever ceasing to be Spanish, Cuba must necessarily become American and not fall under any other European domination.

If water is evaporated too quickly, the membrane dries, resistance across it increases, and eventually it will crack, creating a gas " short circuit " where hydrogen and oxygen combine directly, generating heat that will damage the fuel cell.

More precisely, if A is a finite set of generators for G then the word problem is the membership problem for the formal language of all words in A and a formal set of inverses that map to the identity under the natural map from the free monoid with involution on A to the group G. If B is another finite generating set for G, then the word problem over the generating set B is equivalent to the word problem over the generating set A.

If a simple pendulum is suspended from the cusp of an inverted cycloid, such that the " string " is constrained between the adjacent arcs of the cycloid, and the pendulum's length is equal to that of half the arc length of the cycloid ( i. e. twice the diameter of the generating circle ), the bob of the pendulum also traces a cycloid path.

If instead of simply generating random characters one restricts the generator to a meaningful vocabulary and conservatively following grammar rules, like using a context-free grammar, then a random document generated this way can even fool some humans ( at least on a cursory reading ) as shown in the experiments with SCIgen, snarXiv, and the Postmodernism Generator.

If the pH is high ( the concentration of hydrogen ions is low ), the equilibrium shifts to the left: the hydroxide ion abstracts a proton from the ammonium ion, generating ammonia.

If the resulting cavity is not large enough, it may be extended by internally generating additional gas to inject into the cavity.

If G is any group, and S is a generating subset of G, then every element of G is also of the above form ; but in general, these products will not uniquely describe an element of G.

If is a rational generating function, is also

If a < sub > n </ sub > is the probability mass function of a discrete random variable, then its ordinary generating function is called a probability-generating function.

If a < sub > n </ sub > is a Dirichlet character then its Dirichlet series generating function is called a Dirichlet L-series.

If the culture is valuable, then it holds the potential for generating sustained competitive advantages.

If boundary conditions are applied to this system ( e. g., at two physical locations in space ), then only certain values of satisfy the boundary conditions, generating corresponding discrete eigenvalues.

If the underlying generating models are linear then a minimum-variance Kalman filter and a minimum-variance smoother may be used to recover data of interest from noisy measurements.

If computationalism is correct, and if there is no problem in generating artificial consciousness or cognition, it would establish the theoretical possibility of a simulated reality.

" Publications like The Austin Chronicle and Dallas Observer came to the conclusion that despite good acting and special effects, the movie lacked cohesion ; talking about the special effects, the Observer lamented " If only generating a soul for the film itself were so easy.

If muon-catalyzed d-t nuclear fusion were able to be realized practically, it would be a much cheaper way of generating power than conventional nuclear fission reactors because muon-catalyzed d-t nuclear fusion ( like most other types of nuclear fusion ), produces far fewer harmful ( and far less long-lived ) radioactive wastes, and hardly any greenhouse gases.

If the condition of generating a prime ideal is removed, such a set is called a projective algebraic set.

If programs are modifiable at runtime or if incremental compilation is available ( such as in C #, Forth, Frink, Groovy, JavaScript, Lisp, Lua, Perl, PHP, Python, REBOL, Ruby, Smalltalk, and Tcl ), then techniques can be used to perform metaprogramming without actually generating source code.

If an entity looks sufficiently nonhuman, its human characteristics will be noticeable, generating empathy.

If a return is not filed after the computer generated letters, such as TX11 and TX14, a non-filer officer could arbitrarily prepare a tax return for the taxpayer, normally generating a larger tax bill than what the taxpayer would expect.

If a substitute check is needed, the transmitting bank is responsible for the cost of generating and transporting it from the presentment point to the Federal Reserve Bank or other corresponding bank.

* If μ is a symmetric probability measure on Γ with support generating Γ, then convolution by μ defines an operator of norm 1 on l < sup > 2 </ sup >( Γ ) ( Kesten ).