Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1978-3-29
pubmed:abstractText
Photodissociation of nitrosyl haemoglobin and nitrosyl hybrids, in which either the alpha or beta subunit is in the nitrosyl form has been stidued at liquid helium temperature (4.2 degrees K) by electron spin resonance and optical absorption spectroscopy. In the presence of inositol hexaphosphate, the photodissociated form of nitrosyl haemoglobin showed an anomalous absorption spectrum in the near infrared region. The experiments with nitrosyl hybrids showed that the alphaNO subunit within the T state haemoglobin is predominantly responsible for the anomalous photodissociated form and the ESR spectrum with three distinct hypefines. The ESR spectrum of alphaNO2betadeoxy2 with inositol hexaphosphate appeared to be very similar to that of the 5-coordinated NO-haem complexes but the absorption spectrum of its photodissociated form was similar to none of protoporphyrin Fe(II) derivatives so far reported. This result suggests that the anomalous photodissociated form may be attributable to some structural distortion of porphyrin or a new electronic state of the haem with different spin state from that of deoxyhaemoglobin.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
532
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
17-28
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1978
pubmed:articleTitle
The effect of quaternary structure on the state of the alpha and beta subunits within nitrosyl haemoglobin. Low temperature photodissociation and the ESR spectra.
pubmed:publicationType
Journal Article