Proline-rich protein 4 is a protein that in humans is encoded by the PRR4gene.[3][4]
Lacrimal proline rich protein is a member of the proline-rich protein family which lacks a conserved repetitive domain. It may have a role in protective functions in the eye.[4]
Fung KY, Morris C, Sathe S, et al. (2005). "Characterization of the in vivo forms of lacrimal-specific proline-rich proteins in human tear fluid". Proteomics. 4 (12): 3953–9.
Brandenberger R, Wei H, Zhang S, et al. (2005). "Transcriptome characterization elucidates signaling networks that control human ES cell growth and differentiation". Nat. Biotechnol. 22 (6): 707–16.
Gevaert K, Goethals M, Martens L, et al. (2004). "Exploring proteomes and analyzing protein processing by mass spectrometric identification of sorted N-terminal peptides". Nat. Biotechnol. 21 (5): 566–9.