Other classes, such as the ATP binding cassette (ABC) transporters and the bacterial phosphoenolpyruvate (PEP) dependent transporters, are unlikely to be effective, because of expression difficulty and high relative energy requirements [ 71].
(2) Our inducible protein library was undoubtedly only partial due to the Sau3A partial digestion used to generate library clones, the effect of codon bias on protein expression, and difficulties expressing all antigens (especially membrane associated proteins) equivalently in E. coli based expression libraries.
Our own in-house experiences with both the EphB2 and EphB4 subfamily members had led to similar observations (Green et al., AstraZeneca, unpublished work); while both kinases could be expressed in reasonable quantities in insect-cell expression systems, difficulties arose when attempting to produce material in E. coli for heteronuclear NMR studies.
A variety of other features may accompany these characteristics, including a lack of facial expression (known as "masked face"), difficulty in swallowing or speaking, loss of balance, a shuffling gait, depression, and dementia.
Common consequences are physical instability, abnormal facial expression, and difficulties chewing, swallowing, and speaking.
However, the study of the discrete epidemic models is comparatively poor due to the complicated expression and difficulty in dynamical analysis.
This suggested that the unique SNPs in B3-688-1 minht resulower lowexpressionior or difficulty in translation and polymerization.
Widespread adoption of genomic technologies in the management of heterogeneous indications, including Multiple Myeloma, has been hindered by concern over variation between published gene expression signatures, difficulty in physician interpretation and the challenge of obtaining sufficient genetic material from limited patient specimens.
That imperfect fluency allows for reflection on difficulties of expression and communication that are endemic to all of our attempts to make meaning.
