| Structural highlights
5o4c is a 4 chain structure with sequence from Blastochloris viridis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Ligands: | , , , , , , , , , |
| NonStd Res: | |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
[RCEM_BLAVI] The reaction center is a membrane-bound complex that mediates the initial photochemical event in the electron transfer process of photosynthesis. [CYCR_BLAVI] The reaction center of purple bacteria contains a tightly bound cytochrome molecule which re-reduces the photo oxidized primary electron donor.[1] [RCEL_BLAVI] The reaction center is a membrane-bound complex that mediates the initial photochemical event in the electron transfer process of photosynthesis. [RCEH_BLAVI] The reaction center is a membrane-bound complex that mediates the initial photochemical event in the electron transfer process of photosynthesis.
Publication Abstract from PubMed
Serial protein crystallography was developed at X-ray free-electron lasers (XFELs) and is now also being applied at storage ring facilities. Robust strategies for the growth and optimization of microcrystals are needed to advance the field. Here we illustrate a generic strategy for recovering high-density homogeneous samples of microcrystals starting from conditions known to yield large (macro) crystals of the photosynthetic reaction center of Blastochloris viridis (RCvir). We first crushed these crystals prior to multiple rounds of microseeding. Each cycle of microseeding facilitated improvements in the RCvir serial femtosecond crystallography (SFX) structure from 3.3-A to 2.4-A resolution. This approach may allow known crystallization conditions for other proteins to be adapted to exploit novel scientific opportunities created by serial crystallography.
From Macrocrystals to Microcrystals: A Strategy for Membrane Protein Serial Crystallography.,Dods R, Bath P, Arnlund D, Beyerlein KR, Nelson G, Liang M, Harimoorthy R, Berntsen P, Malmerberg E, Johansson L, Andersson R, Bosman R, Carbajo S, Claesson E, Conrad CE, Dahl P, Hammarin G, Hunter MS, Li C, Lisova S, Milathianaki D, Robinson J, Safari C, Sharma A, Williams G, Wickstrand C, Yefanov O, Davidsson J, DePonte DP, Barty A, Branden G, Neutze R Structure. 2017 Jul 27. pii: S0969-2126(17)30217-4. doi:, 10.1016/j.str.2017.07.002. PMID:28781082[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Chen IP, Mathis P, Koepke J, Michel H. Uphill electron transfer in the tetraheme cytochrome subunit of the Rhodopseudomonas viridis photosynthetic reaction center: evidence from site-directed mutagenesis. Biochemistry. 2000 Apr 4;39(13):3592-602. PMID:10736158
- ↑ Dods R, Bath P, Arnlund D, Beyerlein KR, Nelson G, Liang M, Harimoorthy R, Berntsen P, Malmerberg E, Johansson L, Andersson R, Bosman R, Carbajo S, Claesson E, Conrad CE, Dahl P, Hammarin G, Hunter MS, Li C, Lisova S, Milathianaki D, Robinson J, Safari C, Sharma A, Williams G, Wickstrand C, Yefanov O, Davidsson J, DePonte DP, Barty A, Branden G, Neutze R. From Macrocrystals to Microcrystals: A Strategy for Membrane Protein Serial Crystallography. Structure. 2017 Jul 27. pii: S0969-2126(17)30217-4. doi:, 10.1016/j.str.2017.07.002. PMID:28781082 doi:http://dx.doi.org/10.1016/j.str.2017.07.002
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