PDBsum entry 2nb4

Unknown function

PDB id: 2nb4

Contents

Protein chain

105 a.a.

References listed in PDB file

Key reference

• Title: Solution structure of q388a3 pdz domain from trypanosoma brucei.
• Authors: S.Mei, Y.Dong, J.Zhang, X.Zhang, X.Tu.
• Ref.: J Struct Biol, 2016, 194, 214-217. [DOI no: 10.1016/j.jsb.2016.02.018]
• PubMed id: 26917351

Note: In the PDB file this reference is annotated as "TO BE PUBLISHED". The citation details given above have been manually determined.

Abstract

PDZ domains are abundant protein interaction modules that often recognize short amino acid motifs at the C-termini of target proteins and regulate multiple biological processes. So far, no PDZ domain in Trypanosoma brucei, an eukaryotic parasite causing sleeping sickness, has been studied. Q388A3, conserved in the related kinetoplastid parasites, is a 1634-residue protein containing a PDZ domain at its C-terminus. In this work, the solution structure of Q388A3 PDZ domain was solved by NMR spectroscopy. Q388A3 PDZ domain adopts a PDZ-like fold composed by a five-stranded β-sheet capped by two α-helices, which is similar to the PDZ domains from HtrA family proteins. Meanwhile, Q388A3 PDZ domain shows some structural features quite different from HtrA PDZ domain.