Abstract：
:Recombinant DNA techniques now allow the production of "mini-antibodies" called Fv fragments. These have been produced either as the independent variable domains of the heavy and light chains non-covalently associated in one-to-one stoichiometry or as single-chain gene products with the two domains linked by an intervening peptide sequence. Although Fv fragments can have excellent binding properties, they are often difficult to produce in good yield and lack the characteristic stability of whole antibodies. To improve the stability of the Fv molecule, we have introduced a cysteine residue into conserved framework regions of both the heavy and light variable domains from the anti-Tac antibody at positions compatible with the formation of an interdomain disulfide linkage (i.e. VH-44 and VL-99). The mutant subunits form a disulfide-bonded Fv molecule, which binds to the alpha-subunit of the IL2 receptor (IL2R alpha) with an affinity identical to that of humanized anti-Tac IgG. This disulfide-stabilized Fv (dsFv) proved to be substantially more resistant to denaturation by heat or urea treatment than the single-chain Fv (scFv). Furthermore, the yield of dsFv is -four-fold higher than that of the single-chain analog.
journal_name
Mol Immunoljournal_title
Molecular immunologyauthors
Webber KO,Reiter Y,Brinkmann U,Kreitman R,Pastan Idoi
10.1016/0161-5890(94)00150-ysubject
Has Abstractpub_date
1995-03-01 00:00:00pages
249-58issue
4eissn
0161-5890issn
1872-9142pii
016158909400150Yjournal_volume
32pub_type
杂志文章abstract：:Cyclin-dependent kinase 5 (Cdk5) is known as a unique member of the cyclin-dependent family of serine/threonine kinases. Previously, we demonstrated Cdk5 to be an important regulator of T cell function and that disruption of Cdk5 expression ameliorates T cell mediated neuroinflammation. Here, we show a novel role of C...
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