2h32: Difference between revisions

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[[Image:2h32.jpg|left|200px]]
{{Seed}}
[[Image:2h32.png|left|200px]]


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{{STRUCTURE_2h32|  PDB=2h32  |  SCENE=  }}  
{{STRUCTURE_2h32|  PDB=2h32  |  SCENE=  }}  


'''Crystal structure of the pre-B cell receptor'''
===Crystal structure of the pre-B cell receptor===




==Overview==
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The pre-B cell receptor (pre-BCR) serves as a checkpoint in B cell development. In the 2.7 angstrom structure of a human pre-BCR Fab-like fragment, consisting of an antibody heavy chain (HC) paired with the surrogate light chain, the "unique regions" of VpreB and lambda5 replace the complementarity-determining region 3 (CDR3) loop of an antibody light chain and appear to "probe" the HC CDR3, potentially influencing the selection of the antibody repertoire. Biochemical analysis indicates that the pre-BCR is impaired in its ability to recognize antigen, which, together with electron microscopic visualization of a pre-BCR dimer, suggests ligand-independent oligomerization as the likely signaling mechanism.
The line below this paragraph, {{ABSTRACT_PUBMED_17431183}}, adds the Publication Abstract to the page
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{{ABSTRACT_PUBMED_17431183}}


==About this Structure==
==About this Structure==
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[[Category: Beta sheet]]
[[Category: Beta sheet]]
[[Category: V and c-type ig fold]]
[[Category: V and c-type ig fold]]
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