Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Isolation and characterization of a calmodulin-like protein from the cyanobacterium Nostoc sp. PCC 6720.
AU - Onek, Leonzio A.
AU - Lea, Peter J.
AU - Smith, R. John
PY - 1994
Y1 - 1994
N2 - A 21-kDa novel polypeptide which possesses characteristics normally considered to be diagnostic of the calmodulin present in eukaryotic cells was isolated from the cyanobacterium Nostoc sp. PCC 6720. The major technique employed in the isolation of the polypeptide was ion-exchange chromatography on a Mono Q column. The 21-kDa polypeptide was shown: to activate pea NAD kinase in vitro, in a Ca2+ requiring reaction; to react with polyclonal antibodies raised against spinach calmodulin, but not with those raised against bovine brain calmodulin; and to exhibit a Ca2+ dependent shift in migration during SDS-PAGE.
AB - A 21-kDa novel polypeptide which possesses characteristics normally considered to be diagnostic of the calmodulin present in eukaryotic cells was isolated from the cyanobacterium Nostoc sp. PCC 6720. The major technique employed in the isolation of the polypeptide was ion-exchange chromatography on a Mono Q column. The 21-kDa polypeptide was shown: to activate pea NAD kinase in vitro, in a Ca2+ requiring reaction; to react with polyclonal antibodies raised against spinach calmodulin, but not with those raised against bovine brain calmodulin; and to exhibit a Ca2+ dependent shift in migration during SDS-PAGE.
KW - Calcium - binding protein - Calmodulin - Nostoc sp. PCC 6720
U2 - 10.1007/BF00303592
DO - 10.1007/BF00303592
M3 - Journal article
VL - 161
SP - 352
EP - 358
JO - Archives of Microbiology
JF - Archives of Microbiology
SN - 0302-8933
IS - 4
ER -