1KCU

CRYSTAL STRUCTURE OF ANTIBODY PC287

1KCU の概要

• エントリーDOI: 10.2210/pdb1kcu/pdb
• 関連するPDBエントリー: 1KC5 1KCR 1KCS 1KCV
• 分子名称: PC287 IMMUNOGLOBULIN (3 entities in total)
• 機能のキーワード: anti-peptide antibody, immune system
• 由来する生物種: Mus musculus (house mouse); 詳細
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 46684.82

構造登録者

Nair, D.T.,Singh, K.,Siddiqui, Z.,Nayak, B.P.,Rao, K.V.S.,Salunke, D.M. (登録日: 2001-11-11, 公開日: 2002-05-11, 最終更新日: 2024-10-30)

主引用文献

Nair, D.T.,Singh, K.,Siddiqui, Z.,Nayak, B.P.,Rao, K.V.,Salunke, D.M.
Epitope recognition by diverse antibodies suggests conformational convergence in an antibody response.
J.Immunol., 168:2371-2382, 2002

PubMed Abstract: Crystal structures of distinct mAbs that recognize a common epitope of a peptide Ag have been determined and analyzed in the unbound and bound forms. These Abs display dissimilar binding site structures in the absence of the Ag. The dissimilarity is primarily expressed in the conformations of complementarity-determining region H3, which is responsible for defining the epitope specificity. Interestingly, however, the three Abs exhibit similar complementarity-determining region conformations in the Ag binding site while recognizing the common epitope, indicating that different pathways of binding are used for Ag recognition. The epitope also exhibits conformational similarity when bound to each of these Abs, although the peptide Ag was otherwise flexible. The observed conformational convergence in the epitope and the Ag binding site was facilitated by the plasticity in the nature of interactions.

PubMed: 11859128

実験手法

X-RAY DIFFRACTION (2.2 Å)