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Crystallography

Crystallographic evidence for deviating C3b structure (Reply)

Abstract

We concur with Janssen et al.1 that the structure of C3b that we reported (Protein Data Bank entry 2HR0)2 differs from the other two (2ICF (ref. 3) and 2I07 (ref. 4) in the conformation of the CUB and TED domains. The deviation of 2HR0 from 2I07 is probably relevant physiologically, considering that CUB eventually unfolds.

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Figure 1: Crystal lattice and normalized B factors.

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References

  1. Janssen, B. J., Read, R. J., Brünger, A. T. & Gros, P. Crystallographic evidence for deviating C3b structure. Nature 448, doi: 10.1038/nature06102 (2007).

  2. Ajees, A. A. et al. The structure of complement C3b provides insights into complement activation and regulation. Nature 444, 221–225 (2006).

    Article  ADS  Google Scholar 

  3. Wiesmann, C. et al. Structure of C3b in complex with CRIg gives insights into regulation of complement activation. Nature 444, 217–220 (2006).

    Article  ADS  CAS  Google Scholar 

  4. Janssen, B. J., Christodoulidou, A., McCarthy, A., Lambris, J. D. & Gros, P. Structure of C3b reveals conformational changes that underlie complement activity. Nature 444, 213–216 (2006).

    Article  ADS  CAS  Google Scholar 

  5. Nishida, N., Walz, T. & Springer, T. A. Structural transitions of complement component C3 and its activation products. Proc. Natl Acad. Sci. USA 103, 19737–19742 (2006).

    Article  ADS  CAS  Google Scholar 

  6. Hammel, M. et al. A structural basis for complement inhibition by Staphylococcus aureus. Nature Immunol. 8, 430–437 (2007).

    Article  CAS  Google Scholar 

  7. Trame, C. B. & McKay, D. B. Structure of Haemophilus influenzae HslU protein in crystals with one-dimensional disorder twinning. Acta Crystallogr. D Biol. Crystallogr. 57, 1079–1090 (2001).

    Article  CAS  Google Scholar 

  8. McCoy, A. J., Grosse-Kunstleve, R. W., Storoni, L. C. & Read, R. J. Likelihood-enhanced fast translation functions. Acta Crystallogr. D Biol. Crystallogr. 61, 458–464 (2005).

    Article  Google Scholar 

  9. Liszewski, M. K., Farries, T. C., Lublin, D. M., Rooney, I. A. & Atkinson, J. P. Control of the complement system. Adv. Immunol. 61, 201–283 (1996).

    Article  CAS  Google Scholar 

  10. Pangburn, M. K. in The Complement System (eds Rother, K. & Till, G. O.) 93–117 (Springer, New York, 1998).

    Google Scholar 

  11. Chang, G., Spencer, R. H., Lee, A. T., Barclay, M. T. & Rees, D. C. Structure of the MscL homolog from Mycobacterium tuberculosis: a gated mechanosensitive ion channel. Science 282, 2220–2226 (1998).

    Article  ADS  CAS  Google Scholar 

  12. Esnouf, R. M. et al. Continuous and discontinuous changes in the unit cell of HIV-1 reverse transcriptase crystals on dehydration. Acta Crystallogr. D Biol. Crystallogr. 54, 938–953 (1998).

    Article  CAS  Google Scholar 

  13. Glykos, N. M. & Kokkinidis, M. On the distribution of the bulk-solvent correction parameters. Acta Crystallogr. D Biol. Crystallogr. 56, 1070–1072 (2000).

    Article  CAS  Google Scholar 

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Correspondence to Krishnasamy Gunasekaran.

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Ajees, A., Gunasekaran, K., Narayana, S. et al. Crystallographic evidence for deviating C3b structure (Reply). Nature 448, E2–E3 (2007). https://doi.org/10.1038/nature06103

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