Mutant/mutation
The mutant expresses a mutated form of TRAP.  The cytoplasmic tail domain (CTD) of TRAP has been replaced with the CTD of TLP (Trap-Like Protein; TRAP2; PBANKA_111600 ).

Protein (function)
TRAP is a type 1 transmembrane protein, containing two adhesive domains in its extracellular portion, an A-domain of von Willebrand factor and a thrombospondin type I repeat (TSR, TSP). The cytoplasmic part (tail) of the protein is postulated to interact with actin–myosin motor proteins giving the force needed for motility.
TRAP is located in the micronemes of sporozoites. The protein plays a role in the gliding motility of sporozoites and invasion of host cells as has been shown by analysis of mutant parasites lacking expression of TRAP(RMgm-47; RMgm-53).
Analyses of mutants that express TRAP with mutated forms of the cytoplasmic tail have shown the role of this domain for gliding motility and invasion of host cells (see 'Other mutants').

Phenotype
Analyses of other mutants that express TRAP with mutated forms of the cytoplasmic tail have shown the role of this domain for gliding motility and invasion of host cells (see 'Other mutants').

The phenotype analyses of the mutant described here indicate that  that the cytoplasmic tail domain of TLP (Trap-Like Protein; TRAP2; PBANKA_111600 )  can complement the function of cytoplasmic tail domain of TRAP, albeit not as well as TRAP as shown by the (trongly) reduced invasion of salivary glands and hepatocytes.

Additional information

Other mutants
P. berghei mutants with mutated cytoplasmic tails of TRAP (RMgm-54; RMgm-55; RMgm-56; RMgm-57; RMgm-150; RMgm-151).
RMgm-143; RMgm-144: P. berghei mutants lacking expression of TLP (Trap-Like Protein; TRAP2; PBANKA_111600 ).