addenda and errata\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

IUCrJ
ISSN: 2052-2525

Structure and mechanism of copper–carbonic anhydrase II: a nitrite reductase. Corrigendum

aDepartment of Biochemistry and Molecular Biology, College of Medicine, University of Florida, Gainesville, FL 32610 USA, and bDepartment of Physics, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
*Correspondence e-mail: rmckenna@ufl.edu

Statements in the article by Andring et al. [IUCrJ, (2020), 7, 287–293] are corrected.

The following statements in the article by Andring et al. (2020[Andring, J. T., Kim, C. U. & McKenna, R. (2020). IUCrJ, 7, 287-293.]) are corrected:

(a) On page 288, `recent reports have shown that CAII can also reduce nitrite (NO2) to nitric oxide (NO), and thus, may play a role in vasodilation and regulation of blood pressure (Andring et al., 2018[Andring, J. T., Lomelino, C. L., Tu, C., Silverman, D. N., McKenna, R. & Swenson, E. R. (2018). Free Radic. Biol. Med. 117, 1-5.]; Aamand et al., 2009[Aamand, R., Dalsgaard, T., Jensen, F. B., Simonsen, U., Roepstorff, A. & Fago, A. (2009). Am. J. Physiol. Heart Circ. Physiol. 297, H2068-H2074.]; Hanff et al., 2018[Hanff, E., Zinke, M., Böhmer, A., Niebuhr, J., Maassen, M., Endeward, V., Maassen, N. & Tsikas, D. (2018). Anal. Biochem. 550, 132-136.]).' should read `recent reports have shown that CAII can also reduce nitrite (NO2) to nitric oxide (NO), and thus, may play a role in vasodilation and regulation of blood pressure (Aamand et al., 2009[Aamand, R., Dalsgaard, T., Jensen, F. B., Simonsen, U., Roepstorff, A. & Fago, A. (2009). Am. J. Physiol. Heart Circ. Physiol. 297, H2068-H2074.]).'. Hanff et al. (2018[Hanff, E., Zinke, M., Böhmer, A., Niebuhr, J., Maassen, M., Endeward, V., Maassen, N. & Tsikas, D. (2018). Anal. Biochem. 550, 132-136.]) did not show reduction to NO but instead showed nitrite dehydratase activity, which is not a redox reaction.

(b) On pages 288–299, `However, when dialyzed with ethylenediaminetetraacetic acid (EDTA), the enzyme retained its carbonic anhydrase activity yet lost its nitrite reductase activity (Hanff et al., 2018[Hanff, E., Zinke, M., Böhmer, A., Niebuhr, J., Maassen, M., Endeward, V., Maassen, N. & Tsikas, D. (2018). Anal. Biochem. 550, 132-136.])' should read `However, when dialyzed with ethylenediaminetetraacetic acid (EDTA), the enzyme retained its carbonic anhydrase activity yet lost its nitrite reductase activity (Andring et al., 2018[Andring, J. T., Lomelino, C. L., Tu, C., Silverman, D. N., McKenna, R. & Swenson, E. R. (2018). Free Radic. Biol. Med. 117, 1-5.])'.

(c) And on page 291, `... indicating that a metal cofactor within the bovine blood was needed for the CAII-dependent nitrite reductase activity (Andring et al., 2018[Andring, J. T., Lomelino, C. L., Tu, C., Silverman, D. N., McKenna, R. & Swenson, E. R. (2018). Free Radic. Biol. Med. 117, 1-5.]; Hanff et al., 2018[Hanff, E., Zinke, M., Böhmer, A., Niebuhr, J., Maassen, M., Endeward, V., Maassen, N. & Tsikas, D. (2018). Anal. Biochem. 550, 132-136.])' again should not cite Hanff et al. (2018[Hanff, E., Zinke, M., Böhmer, A., Niebuhr, J., Maassen, M., Endeward, V., Maassen, N. & Tsikas, D. (2018). Anal. Biochem. 550, 132-136.]) and should read `... indicating that a metal cofactor within the bovine blood was needed for the CAII-dependent nitrite reductase activity (Andring et al., 2018[Andring, J. T., Lomelino, C. L., Tu, C., Silverman, D. N., McKenna, R. & Swenson, E. R. (2018). Free Radic. Biol. Med. 117, 1-5.])'.

References

First citationAamand, R., Dalsgaard, T., Jensen, F. B., Simonsen, U., Roepstorff, A. & Fago, A. (2009). Am. J. Physiol. Heart Circ. Physiol. 297, H2068–H2074.  Web of Science CrossRef PubMed CAS Google Scholar
First citationAndring, J. T., Kim, C. U. & McKenna, R. (2020). IUCrJ, 7, 287–293.  Web of Science CrossRef CAS PubMed IUCr Journals Google Scholar
First citationAndring, J. T., Lomelino, C. L., Tu, C., Silverman, D. N., McKenna, R. & Swenson, E. R. (2018). Free Radic. Biol. Med. 117, 1–5.  Web of Science CrossRef CAS PubMed Google Scholar
First citationHanff, E., Zinke, M., Böhmer, A., Niebuhr, J., Maassen, M., Endeward, V., Maassen, N. & Tsikas, D. (2018). Anal. Biochem. 550, 132–136.  Web of Science CrossRef CAS PubMed Google Scholar

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IUCrJ
ISSN: 2052-2525