Pertussis toxin, produced by Bordetella pertussis, catalyzes ADP-ribosylation of the  subunit of Gαi, preventing GDP-GTP exchange and blocking inhibition of adenylyl cyclase.

TLS Online TPP Program

#Id: 9275

#XL - R Botany

NodD proteins interact directly with the signals generated by the plants and activates most conserved Nod ABC genes in bacteria

TLS Online TPP Program

#Id: 8112

#XL - Q Biochemistry

The amino group at C-2 bears a fatty acid in amide linkage.

The fatty acid is usually saturated or monounsaturated, with 16, 18, 22, or 24 carbon atoms.

Ceramide is the parent compound for this group.

TLS Online TPP Program

#Id: 8317

#XL - Q Biochemistry

Actin polymerization in vitro proceeds in three steps:

1.Nucleation phase

2.Elongation phase

3.Steady-state

TLS Online TPP Program

#Id: 8571

#XL - Q Biochemistry

In the situation where Ki< K1, This form of mixed inhibition has been termed noncompetitive- uncompetitive inhibition

TLS Online TPP Program

#Id: 9467

#XL - T Zoology

SH2 domain of STAT binds to a specific phosphotyrosine in the cytosolic domain of an activated receptor