7BWH

Soluble cytochrome b5 from Ramazzottius varieornatus

Summary for 7BWH

• Entry DOI: 10.2210/pdb7bwh/pdb
• Descriptor: Cytochrome b5 heme-binding domain-containing protein, PROTOPORPHYRIN IX CONTAINING FE, CHLORIDE ION, ... (4 entities in total)
• Functional Keywords: heme protein, cytochrome b5, electron transport
• Biological source: Ramazzottius varieornatus (Water bear)
• Total number of polymer chains: 1
• Total formula weight: 13435.17

Authors

Kim, J.,Inoue, T.,Fukuda, Y. (deposition date: 2020-04-14, release date: 2020-06-10, Last modification date: 2024-03-27)

Primary citation

Fukuda, Y.,Kim, J.,Inoue, T.
Structure of cytochrome b5unique to tardigrades.
Protein Sci., 29:1829-1835, 2020

PubMed Abstract: Cytochrome b is an essential electron transfer protein, which is ubiquitously found in living systems and involved in wide variety of biological processes. Tardigrades (also known as water bears), some of which are famous for desiccation resistance, have many proteins unique to them. Here, we report spectroscopic and structural characterization of a cytochrome b like protein from one of the desiccation-tolerant tardigrades, Ramazzottius varieornatus strain YOKOZUNA-1 (RvCytb ). A 1.4 Å resolution crystal structure revealed that RvCytb is a new cytochrome b protein specific to tardigrades.

PubMed: 32483879
DOI: 10.1002/pro.3896

Experimental method

X-RAY DIFFRACTION (1.4 Å)