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TLS Online TPP Program

#Question id: 3913

The sigma-70 subunit

#XL - Q Biochemistry

  1. increases the affinity of the core polymerase for nonpromoter sequences.

  2. decreases the affinity of the core polymerase for specific promoter sequences.

  3. is responsible for transcribing many genes.

  4. is associated with a holoenzyme, enabling the formation of more stable complexes.

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TLS Online TPP Program

#Question id: 1732

#XL - Q Biochemistry

Protein tyrosine kinase activity following T-cell stimulation:
TLS Online TPP Program

#Question id: 1733

#XL - Q Biochemistry

The early increase in phospholipase Cγ1 activity following T-cell stimulation:
TLS Online TPP Program

#Question id: 1734

#XL - Q Biochemistry

The nuclear AP-1 site responsible for 90% of IL-2 enhancer activity binds:
TLS Online TPP Program

#Question id: 1735

#XL - Q Biochemistry

In the immunological synapse:
TLS Online TPP Program

#Question id: 1736

#XL - Q Biochemistry

Lipopolysaccharide (LPS) from Gram-negative bacteria is:
TLS Online TPP Program

#Question id: 1737

#XL - Q Biochemistry

The carrier T-cell epitope on a thymus-dependent antigen: