Bacteriochlorophyll a from Rhodopseudomonas sphaeroides (under argon)

Bacteriochlorophyll a from Rhodopseudomonas sphaeroides (under argon) CAS: 17499-98-8 MDL: MFCD00078976

SDS

Molecular weight: 911.50 g/mol

Molecular Formula: C₅₅H₇₄MgN₄O₆

CAS Number:  17499-98-8

Storage: Store at 0 – 4 °C, protect from light

Synonyms:  Bacteriochlorophyll, bacteriochlorophyll a, 17499-98-8

Field of Interest: Natural Products, Light Harvesting Antennae, Chlorophyll, Photosynthetic Bacteria

 Background: Bacteriochlorophyll is a phytol chain-based porphyrin natural product that intertwines with carotoneoids in light harvesting antennae complexes found in photosynthetic bacteria. ^1,2   The compound is studied as the reactive center of photosynthesis and in studies of electron transfer directionality in photosynthetic reactions. The phytol chain is thought to confer protective qualities while interacting with carotenoids in highly reactive electron environments. ^3,4

References:   

1.)  McDermott, G.; Prince, S. M.; Freer, A. A.; Hawthornthwaite-Lawless, A. M.; Papiz, M. Z.; Cogdell, R. J.; Isaacs, N. W., Crystal structure of an integral membrane light-harvesting complex from photosynthetic bacteria, Nature (London) (1995), 374(6522), 517-21. DOI:10.1038/374517a0.

2.)  Sauer, Kenneth; Cogdell, Richard J.; Prince, Steve M.; Freer, Andy; Isaacs, Neil W.; Scheer, Hugo, Structure-based calculations of the optical spectra of the LH2 bacteriochlorophyll-protein complex from Rhodopseudomonas acidophila, Photochemistry and Photobiology (1996), 64(3), 564-576. DOI:10.1111/j.1751-1097.1996.tb03106.x

3.)  Gunner, M. R.; Nicholls, Anthony; Honig, Barry, Electrostatic potentials in Rhodopseudomonas viridis reaction centers: implications for the driving force and directionality of electron transfer Journal of Physical Chemistry (1996), 100(10), 4277-91. DOI:10.1021/jp9519070

4.)  Roszak, Aleksander W.; Howard, Tina D.; Southall, June; Gardiner, Alastair T.; Law, Christopher J.; Isaacs, Neil W.; Cogdell, Richard J., Crystal Structure of the RC-LH1 Core Complex from Rhodopseudomonas palustris, Science (Washington, DC, United States) (2003), 302(5652), 1969-1972. DOI:10.1126/science.1088892,