Family of peroxisomal membrane anchor proteins which bind the PTS1 (peroxisomal targeting signal) receptor and are required for the import of PTS1-containing proteins into peroxisomes. Loss of functional Pex14p results in defects in both the PTS1 and PTS2-dependent import pathways. Deletion analysis of this conserved region implicates it in selective peroxisome degradation. In the majority of members this region is situated at the N-terminus of the protein [1,2].

1: Pex14p, a peroxisomal membrane protein binding both receptors of the two PTS-dependent import pathways. Albertini M, Rehling P, Erdmann R, Girzalsky W, Kiel JA, Veenhuis M, Kunau WH; Cell 1997;89:83-92. PMID:9094717

2: Peroxisome biogenesis and selective degradation converge at Pex14p. Bellu AR, Komori M, van der Klei IJ, Kiel JA, Veenhuis M; J Biol Chem 2001;276:44570-44574. PMID:11564741

3: Structural basis for competitive interactions of Pex14 with the import receptors Pex5 and Pex19. Neufeld C, Filipp FV, Simon B, Neuhaus A, Schuller N, David C, Kooshapur H, Madl T, Erdmann R, Schliebs W, Wilmanns M, Sattler M; EMBO J. 2009;28:745-754. PMID:19197237