Detection of complementary RNA intermediates of viroid replication by Northern blot hybridization

1981 ◽  
Vol 1 (4) ◽  
pp. 327-336 ◽  
Author(s):  
Wolfgang Rohde ◽  
Heinz L. Sänger
Keyword(s):  
Northern Blot ◽  
Blot Hybridization ◽  
Northern Blot Hybridization ◽  
Viroid Replication

scholarly journals Induction of hepatic metallothioneins determined at isoprotein and messenger RNA levels in glucocorticoid-treated rats

1988 ◽  
Vol 249 (2) ◽  
pp. 429-433 ◽  
Author(s):  
L D Lehman-McKeeman ◽  
G K Andrews ◽  
C D Klaassen
Keyword(s):  
Detection Limit ◽  
Northern Blot ◽  
Blot Analysis ◽  
Messenger Rna ◽  
Time Course ◽  
Northern Blot Analysis ◽  
Blot Hybridization ◽  
Northern Blot Hybridization ◽  
Single Dosage ◽  
Rna Levels

Induction of metallothionein-I (MT-I) and metallothionein-II (MT-II) by glucocorticoids was determined by h.p.l.c. analysis of proteins and Northern-blot analysis of MT mRNAs. Rats were injected with dexamethasone (0.03-10 mumol/kg) and hepatic concentrations of MTs were determined 24 h later. In control rats, only MT-II was detected (9.4 +/- 2.5 micrograms/g of liver), whereas the hepatic concentration of MT-I was below the detection limit (5 micrograms of MT/g). Dexamethasone did not increase MT-I above the detection limit at any dosage tested, but MT-II increased to 2.5 times control values at dosages of 0.30 mumol/kg and higher. Time-course experiments indicated that MT-II reached a maximum at 24 h after a single dosage of dexamethasone and returned to control values by 48 h. To determine whether dexamethasone increased MT-I in liver, samples were saturated with 109Cd, after which the amount of 109Cd in MT-I and MT-II was determined. Results indicated that, by this approach, MT-I and MT-II could be detected in control rats, and there was approx. 1.8 times more 109Cd in MT-II than in MT-I. At 24 h after administration of dexamethasone (1 mumol/kg), there was a small increase in the amount of 109Cd bound to MT-I, whereas the amount of 109Cd bound to MT-II increased to more than 2 times control values. Northern-blot hybridization with mouse cRNA probes indicated that MT-I and MT-II mRNAs increased co-ordinately after administration of dexamethasone. Thus, although glucocorticoids increase both MT-I and MT-II mRNAs, MT-II preferentially accumulates after administration of dexamethasone.

Comparison of human and porcine group C rotaviruses by Northern blot hybridization analysis

1991 ◽  
Vol 118 (3-4) ◽  
pp. 269-277 ◽  
Author(s):  
Y. Qian ◽  
L. J. Saif ◽  
A. Z. Kapikian ◽  
S. Y. Kang ◽  
B. Jiang ◽  
...  
Keyword(s):  
Northern Blot ◽  
Blot Hybridization ◽  
Hybridization Analysis ◽  
Northern Blot Hybridization
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