The PIN-FORMED (PIN) protein family of auxin transporters

Table 1 Identified phosphorylation sites in PIN proteins

Sequence	Protein and group	Reference	Notes
LQSSRNPTPPRGSSFNH*	AtPIN1; group 5	[56]
TPRPSN	AtPIN1; group 5	[56]
YPAPNPXFSP	AtPIN1; subgroup5a	[46, 56]	Phosphorylated by PINOID kinase
AAGKDTTPVA*	AtPIN6; group 8	[56]

The phosphorylated amino acid is in bold type. All members of the designated group share the sequence. *It is not known which of the two neighboring amino acids is phosphorylated.

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