Chemical typing of human immunoglobulin VH subgroups

Autor: Michel Fougereau, C. de Preval, Daniel Eskinazi, André Moulin
Rok vydání: 1975
Předmět:
Zdroj: Immunochemistry. 12:883-892
ISSN: 0019-2791
DOI: 10.1016/0019-2791(75)90246-3
Popis: WITHIN each of the three types of immunoglobulin chains, κ, λ and H, subgroups of variability have been defined on the basis of characteristic basic sequences. In human immunoglobulins, three subgroups have been described for the κ chains1, five for the λ chains2 and three for the H chains3, 4, one of the latter being closely homologous to that of a mouse VH region5. Antigenic determinants, specific for each of the Vκ subgroups6 and at least for some of the Vλ7, 8, have made possible attempts to type subgroups serologically. The production of specific antisera is, however, a difficulty and this led Frangione et al., who were concerned with the typing of classes and subclasses of immunoglobulins, to propose a chemical way of typing for the discrete isotypes based on sequence differences around the cysteine residues of the chains9. By looking at the published sequences of human Vκ regions10 it can be seen that some peptides around cysteines 1 (position 23) and 2 (position 88) are characteristic of each Vκ subgroup. (The nomenclature of κ subgroups used here is taken from ref. 10 and so, differs from that used in refs 1 and 6.)
Databáze: OpenAIRE