Nucleotide sequences encoding variable regions of heavy and light chains of monoclonal antibody 1F7, an anti-idiotypic antibody reactive with anti-HIV antibodies

   
   

Nucleotide sequences encoding the variable heavy and light chains of the murine monoclonal antibody 1F7 are disclosed. The 1F7 antibody is an effective immune modulator that has anti-idiotypic binding affinity for anti-HIV antibodies. Polypeptides containing at least one complementarity-determining region (CDR) or framework-determining region (FR) of the variable heavy or variable light chains of 1F7, as well as the polynucleotides encoding them, can be used to modulate the immune response to HIV infection. Unnecessary, and potentially adverse, murine segments of the variable chains falling outside the CDRs can be replaced with human sequences to afford humanized chimeric antibodies and antibody fragments.

Las secuencias del nucleotide que codifican las cadenas pesadas y ligeras variables del anticuerpo monoclonal murine 1F7 se divulgan. El anticuerpo 1F7 es un modulador inmune eficaz que tiene afinidad obligatoria anti-idiotypic para los anticuerpos contra-VIH. Los polipéptidos que contienen por lo menos una región de complementariedad-determinacio'n (CDR) o armazo'n-que determinan la región (franco) de las cadenas ligeras pesadas o variables variables de 1F7, tan bien como los polynucleotides que los codifican, se pueden utilizar para modular la inmunorespuesta a la infección del VIH. Los segmentos innecesarios, y potencialmente adversos, murine de las cadenas variables que caen fuera del CDRs se pueden substituir por secuencias humanas para producir los anticuerpos y los fragmentos quiméricos humanizados del anticuerpo.

 
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