Table I.

Characteristics of Arf6 mutant proteins

Arf6 mutant protein Phenotype Citation VSVG sortinga 
Arf6Q67L Locked in GTP form Donaldson, 2003  Apical 
Arf6D125N Binds xanthine nucleotides, presumed nucleotide-free in cells Yang and Mueckler, 1999  Apical 
Arf6T27N Locked in GDP form Macia et al., 2004  Basolateral 
Arf6N48I Deficient in PLD activation Vitale et al., 2005; Jovanovic et al., 2006  Basolateral 
Arf6Q67L/Q37E/S38I Defective in actin remodeling Al-Awar et al., 2000; Palacios et al., 2001  Apical 
Arf6G2A Can no longer be myristoylated Knorr et al., 2000  ND 
Arf6D125N/G2A Presumed nucleotide-free, not myristoylated This paper Apical 
Arf6Q67L/G2A Locked in GTP form, not myristoylated This paper Apical 
a

The VSVG sorting phenotypes in the presence of Arf6 mutant proteins were all obtained in this study.

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