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The IgD C(H)1 region contains the binding site for the human respiratory pathogen Moraxella catarrhalis IgD-binding protein MID.

Samuelsson, Martin LU ; Jendholm, Johan LU ; Amisten, Stefan LU ; Morrison, Sherie L ; Forsgren, Arne LU and Riesbeck, Kristian LU orcid (2006) In European Journal of Immunology 9(Sep;36). p.2525-2534
Abstract
The Moraxella catarrhalis IgD-binding protein (MID) has a unique specificity for human IgD, and the sequence with maximal IgD binding is located within the amino acids MID962-1200. In the present paper, we examined the MID binding site on IgD using a series of recombinant Ig. Full-length IgD, IgD F(ab')(2), and an IgD F(ab') C290R mutant lacking the inter-heavy-chain cysteine 290 were manufactured. Furthermore, a series of IgD/IgG chimeras were constructed. ELISA, dot blot and flow cytometry were used to study the binding of purified Ig to native MID, recombinant MID912-1200 or to Moraxella with or without MID. MID962-1200 bound both the IgD F(ab')(2) and F(ab') C290R, indicating that the binding occurred independently of antibody... (More)
The Moraxella catarrhalis IgD-binding protein (MID) has a unique specificity for human IgD, and the sequence with maximal IgD binding is located within the amino acids MID962-1200. In the present paper, we examined the MID binding site on IgD using a series of recombinant Ig. Full-length IgD, IgD F(ab')(2), and an IgD F(ab') C290R mutant lacking the inter-heavy-chain cysteine 290 were manufactured. Furthermore, a series of IgD/IgG chimeras were constructed. ELISA, dot blot and flow cytometry were used to study the binding of purified Ig to native MID, recombinant MID912-1200 or to Moraxella with or without MID. MID962-1200 bound both the IgD F(ab')(2) and F(ab') C290R, indicating that the binding occurred independently of antibody structure. When amino acids 157-224 of the IgD C(H)1 region were substituted with IgG sequences, binding by M. catarrhalis or recombinant MID962-1200 was abolished. Subsequent smaller substitutions of IgD C(H)1 157-224 with IgG sequences led us to conclude that IgD C(H)1 amino acids 198-206 were crucial for the interaction between MID and IgD. (Less)
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Moraxella catarrhalis, immunoglobulin D, binding
in
European Journal of Immunology
volume
9
issue
Sep;36
pages
2525 - 2534
publisher
John Wiley & Sons Inc.
external identifiers
  • wos:000240586100026
  • pmid:16906531
  • scopus:33748857116
  • pmid:16906531
ISSN
1521-4141
DOI
10.1002/eji.200535594
language
English
LU publication?
yes
id
67546171-00d8-4c30-9cda-60dbdbea8c11 (old id 160110)
alternative location
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=16906531&dopt=Abstract
date added to LUP
2016-04-01 12:20:54
date last changed
2022-01-27 02:29:24
@article{67546171-00d8-4c30-9cda-60dbdbea8c11,
  abstract     = {{The Moraxella catarrhalis IgD-binding protein (MID) has a unique specificity for human IgD, and the sequence with maximal IgD binding is located within the amino acids MID962-1200. In the present paper, we examined the MID binding site on IgD using a series of recombinant Ig. Full-length IgD, IgD F(ab')(2), and an IgD F(ab') C290R mutant lacking the inter-heavy-chain cysteine 290 were manufactured. Furthermore, a series of IgD/IgG chimeras were constructed. ELISA, dot blot and flow cytometry were used to study the binding of purified Ig to native MID, recombinant MID912-1200 or to Moraxella with or without MID. MID962-1200 bound both the IgD F(ab')(2) and F(ab') C290R, indicating that the binding occurred independently of antibody structure. When amino acids 157-224 of the IgD C(H)1 region were substituted with IgG sequences, binding by M. catarrhalis or recombinant MID962-1200 was abolished. Subsequent smaller substitutions of IgD C(H)1 157-224 with IgG sequences led us to conclude that IgD C(H)1 amino acids 198-206 were crucial for the interaction between MID and IgD.}},
  author       = {{Samuelsson, Martin and Jendholm, Johan and Amisten, Stefan and Morrison, Sherie L and Forsgren, Arne and Riesbeck, Kristian}},
  issn         = {{1521-4141}},
  keywords     = {{Moraxella catarrhalis; immunoglobulin D; binding}},
  language     = {{eng}},
  number       = {{Sep;36}},
  pages        = {{2525--2534}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{European Journal of Immunology}},
  title        = {{The IgD C(H)1 region contains the binding site for the human respiratory pathogen Moraxella catarrhalis IgD-binding protein MID.}},
  url          = {{http://dx.doi.org/10.1002/eji.200535594}},
  doi          = {{10.1002/eji.200535594}},
  volume       = {{9}},
  year         = {{2006}},
}