Effect of divalent cations on the molecular structure of the GroEL

Biochemistry 1994, 33, 12000

12000

CORRECTIONS Effect of Divalent Cations on the Molecular Structure of the GroEL Oligomer, by Abdussalam Azem, Sophia Diamant, and Pierre Goloubinoff*,Volume 33, Number 21, May 31, 1994, pages 667145675. Page 6672. Due to a printing error, the data in Figure 1, especially panel b, did not reproduce well. The figure should appear as follows:

a Re

10

3'

5'

20

50

60"

70

90

105"

[GroEL] 14

b 15'

30'

60'

120'

300'

1440'

FIGURE1: Cross-linking of the GroEL14 oligomer with glutardialdehyde. 17 pM GroELwas exposed to GA (0.1% v/v), in the presence of 10 mM MgC12, for various periods of time at 25 OC and submitted to uniform SDS-polyacrylamide gel electrophoresis (tube, 3.2%). (a) Fast phase of cross-linking. (b) Slow phase of cross-linking.

Electron-NuclearCoupling to the Proximal Histidine in Oxy Cobalt-Substituted Distal Histidine Mutants of Human Myoglobin, by H. Caroline Lee,*Jack Peisach, Yi DOU,and Masao Ikeda-Saito, Volume 33, Number 24, June 21, 1994, pages 7609-76 18. Pages 7613 and 7617. The term H64H in Tables 2,3, and 4 should be wild-type. Page 7617. The fifth sentenceof the last paragraph should read as follows: A decrease in electron-nuclear coupling is accompanied by an increase in 0 2 affinity, ....

0006-2960/94/0433- 12000$04.50/0

0 1994 American Chemical Society