Linked Life Data

7939716

Source:http://linkedlifedata.com/resource/pubmed/id/7939716

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5185
pubmed:dateCreated
1994-11-21
pubmed:abstractText
Femtosecond laser pulses, resonant with Soret band of the nitric oxide complex of myoglobin (MbNO), were used to probe coherent, low-frequency nuclear motion of the heme group after photolysis. Distinct oscillations with periods of 430 and 150 femtoseconds were observed and are attributed to heme doming and iron-histidine motion, respectively. These results verify that the nuclear motion of the heme is strongly coupled to the ligand binding reaction and demonstrate that such motion is not determined by overdamped (diffusive) dynamics. The relative phases and frequencies of the nuclear motion of the photoproduct suggest that the coherence arises from impulsive electronic forces associated with the spin-state change of the heme iron atom and the depopulation of its dz2 orbital during the bond-breaking event.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0036-8075
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
266
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
629-32
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Observation of coherent reaction dynamics in heme proteins.
pubmed:affiliation
Department of Physics, Northeastern University, Boston, MA 02115.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.