Modified .beta..sub.2 -microglobulin

Details Modified .beta..sub.2 -microglobulin Modified .beta..sub.2 -microglobulin

1990-03-29

1992-12-29

Kepplinger, Esther L.

Chemistry: analytical and immunological testing

Involving production or treatment of antibody

Monoclonal antibody

436518, 436804, 435 71, 435 75, 435 792, 435 793, 424 858, 5303879, 53038885, 5303911, 5303913, 530403, G01N 33577, G01N 3353, C07K 1528

Patent

active

051751135

ABSTRACT:
Substantially pure modified .beta..sub.2 -microglobulin (m.beta..sub.2 m) of the formula I ##STR1## wherein R.sub.1 is 24-amino acid residue, with the sequence Ile-Gln-Arg-Thr-Pro-Lys-Ile-Gln-Val-Tyr-Ser-Arg-His-Pro-Ala-Glu-Asn-Gly-Ly s-Ser-Asn-Phe-Leu-Asn, R.sub.2 is a 30-amino acid residue with the sequence Tyr-Val-Ser-Gly-Phe-His-Pro-Ser-Asp-Ile-Glu-Val-Asp-Leu-Leu-Lys-Asn-Gly-Gl u-Arg-Ile-Gly-Lys-Val-Glu-His-Ser-Asp-Leu-Ser, R.sub.3 is a 20-amino acid residue with the sequence Trp-Ser-Phe-Tyr-Leu-Leu-Tyr-Tyr-Glu-Phe-Thr-Pro-Thr-Glu-Lys-Asp-Glu-Tyr-Al a, R.sub.4 is a 19-amino acid residue with the sequence Arg-Val-Asn-His-Val-Thr-Leu-Ser-Gln-Pro-Lys-Ile-Val-Lys-Trp-Asp-Arg-Asp-Me t, X is Phe, Phe-Ser, or Phe-Ser-Lys, and Y is Asp, Lys-Asp, or Ser-Lys-Asp is disclosed. The presence of the protein in body fluids is a diagnostic and/or prognostic marker for the development of a variety of disorders such as different types of cancer and diseases involving the immune system. Also disclosed are specific anti-m.beta..sub.2 m antibodies used for the detection and quantification of m.beta..sub.2 m.

REFERENCES:
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