Download MendeleySolution structure of the human HSPC280 protein
Lin, J., Zhou, T., Wang, J.(2011) Protein Sci 20: 216-223
- PubMed: 21082705 Search on PubMedSearch on PubMed Central
- DOI: https://doi.org/10.1002/pro.548
- Primary Citation Related Structures:
2L2O - PubMed Abstract:
The human HSPC280 protein belongs to a new family of low molecular weight proteins, which is only present in eukaryotes, and is absent in fungi. The solution structure of HSPC280 was determined using multidimensional NMR spectroscopy. The overall structure consists of three α-helices and four antiparallel β-strands and has a winged helix-like fold. However, HEPC280 is not a typical DNA-binding winged helix protein in that it lacks DNA-binding activity. Unlike most winged-helix proteins, HSPC280 has an unusually long 13-residue (P62-V74) wing 1 loop connecting the β3 and β4 strands of the protein. Molecules of HSPC280 have a positively charged surface on one side and a negatively charged surface on the other side of the protein structure. Comparisons with the C-terminal 80-residue domain of proteins in the Abra family reveal a conserved hydrophobic groove in the HSPC280 family, which may allow HSPC280 to interact with other proteins.
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
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