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PDOC00183
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1995-07-26
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* Plant hemoglobins signature *
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Leghemoglobins [1] are hemoproteins present in the root nodules of leguminous
plants. Leghemoglobins are structurally and functionally related to hemoglobin
and myoglobin. By providing oxygen to the bacteroids, they are essential for
symbiotic nitrogen fixation. Structurally related hemoglobins from the nodules
of non-leguminous plants [2,3], and from the roots of non-nodulating plants
[4] have been recently sequenced. We have developed a signature pattern that
picks up the sequence of plants hemoglobins, exclusively.
-Consensus pattern: [SN]-P-x-L-x(2)-H-A-x(3)-F
-Sequences known to belong to this class detected by the pattern: ALL.
-Other sequence(s) detected in SWISS-PROT: NONE.
-Last update: April 1990 / Pattern and text revised.
[ 1] Powell R., Gannon F.
BioEssays 9:117-121(1988).
[ 2] Kortt A.A., Trinick M.J., Appleby C.A.
Eur. J. Biochem. 175:141-149(1988).
[ 3] Kortt A.A., Inglis A.S., Fleming A.I., Appleby C.A.
FEBS Lett. 231:341-346(1988).
[ 4] Bogusz D., Appleby C.A., Landsmann J., Dennis E.S., Trinick M.J.,
Peacock W.J.
Nature 331:178-180(1988).