Yf. Liu et al., Molecular cloning and sequencing of the sodB gene from a heterocystous cyanobacterium Anabaena sp PCC 7120, BBA-GENE ST, 1491(1-3), 2000, pp. 248-252
Citations number
12
Categorie Soggetti
Molecular Biology & Genetics
Journal title
BIOCHIMICA ET BIOPHYSICA ACTA-GENE STRUCTURE AND EXPRESSION
Superoxide dismutase (Sod) plays an important role in all aerobic organisms
. The sodB gene of a heterocystous cyanobacterium Anabaena sp. PCC 7120 was
cloned and sequenced. The Sod protein is predicted to have 199 amino acids
and a molecular mass of 22.5 kDa. Sequence comparison among SodB from cyan
obacteria and chloroplasts revealed that the sodB gene indeed encodes an ir
on-Sod. Northern blot analysis showed that the sodB gene of Anabaena sp. PC
C 7120 is transcribed as a single gene and its expression was up-regulated
when the cells were subjected to a shift from a nitrogen repletion conditio
n to a nitrogen depletion condition. (C) 2000 Elsevier Science B.V. All rig
hts reserved.