Picosecond dynamics of iron proteins. Academic Article

abstract

• The excitation of hemoproteins containing either Fe(2+) or Fe(3+) with a picosecond light pulse resulted in the bleaching and recovery of the iron absorbance bands within 6 psec. A new absorbance band also was observed whose formation and decay rate of less than 6 psec suggests that it is probably due to S(1)-->S(n) absorbance. The Soret band relaxation time is deduced to be approximately 0.5 psec whereas the free base hemoprotein does not show any of the above fast-decay characteristics. Therefore, there is a strong influence of the metal on the energy dissipation process.

authors

• Rentzepis, Peter

published proceedings

• Proc Natl Acad Sci U S A

author list (cited authors)

• Huppert, D., Straub, K. D., & Rentzepis, P. M.

citation count

• 35

complete list of authors

• Huppert, D||Straub, KD||Rentzepis, PM

publication date

• October 1977

publisher

• Proceedings of the National Academy of Sciences  Publisher

published in

• Proceedings of the National Academy of Sciences of the United States of America  Journal

keywords

• 0302 Inorganic Chemistry

PubMed Central ID

• 16592438

Digital Object Identifier (DOI)

• 10.1073/pnas.74.10.4139

start page

• 4139

end page

• 4143

volume

• 74

issue

• 10

URL

• http%3A%2F%2Fdx.doi.org%2F10.1073%2Fpnas.74.10.4139