Heme-undecapeptide labeling on insulin for the immunoassay of insulin with chemiluminescence detection

Kiyoshi Zaitsu, Yoshitada Kimura, Yoshihito Ohba, Kenji Hamase, Yuji Motomura, Minoru Itose, Masato Ishiyama

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9 Citations (Scopus)

Abstract

Heme-undecapeptide (HUP, microperoxidase-11) labeled insulins, in which the Lys(3) amino group of HUP was crosslinked to one amino group of insulin (Gly(A1), Phe(B1) or Lys(B29)) via a disulfide linkage, were prepared. Lys(3)-[3(2-pyridyldithio) propionoyl]-HUP (Lys(3)-PDP-HUP) was synthesized by the reaction of HUP with N-succinimidyl 3-(2-pyridyldithio)propionate and then conjugated with Gly(A1)-thioglycoloyl- (Gly(A1)-TG-), Phe(B1)-TG- or Lys(B29)TG-insulin. Each TG-insulin was generated by deacetylation of Gly(A1)-acetylthioglycoloyl-(Gly(A1)-ATG-), Phe(B1)-ATG- or Lys(B29)-ATG- insulin, that was prepared by reacting native insulin, Phe(B1)-3,4,5,6- tetrahydrophthalyl-insulin (Phe(B1)-THP-insulin) or Gly(A1),Phe(B1)-(THP)2- insulin with N-succinimidyl S-acetylthioacetate (SATA), respectively, followed by deprotection of THP, a reversible amino-protecting group. Both preparative reversed-phase and anion-exchange HPLC were used in the syntheses of PDP-HUP and the insulin derivatives (THP-, ATG- and HUP-insulin), respectively. The optimal reaction conditions for these syntheses were extensively studied using HPLC separation. In addition, immunoreactivity of Phe(B1)-HUP-insulin was manifested by using a solid-phase antibody method with chemiluminescence detection.

Original languageEnglish
Pages (from-to)871-878
Number of pages8
JournalAnalytical Sciences
Volume15
Issue number9
DOIs
Publication statusPublished - Jan 1 1999

Fingerprint

Chemiluminescence
Heme
Labeling
Insulin
Insulins
Disulfides
Anions
Ion exchange
Derivatives
Antibodies
Phe(B1)-insulin

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

Cite this

Heme-undecapeptide labeling on insulin for the immunoassay of insulin with chemiluminescence detection. / Zaitsu, Kiyoshi; Kimura, Yoshitada; Ohba, Yoshihito; Hamase, Kenji; Motomura, Yuji; Itose, Minoru; Ishiyama, Masato.

In: Analytical Sciences, Vol. 15, No. 9, 01.01.1999, p. 871-878.

Research output: Contribution to journalArticle

Zaitsu, Kiyoshi ; Kimura, Yoshitada ; Ohba, Yoshihito ; Hamase, Kenji ; Motomura, Yuji ; Itose, Minoru ; Ishiyama, Masato. / Heme-undecapeptide labeling on insulin for the immunoassay of insulin with chemiluminescence detection. In: Analytical Sciences. 1999 ; Vol. 15, No. 9. pp. 871-878.
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AU - Kimura, Yoshitada

AU - Ohba, Yoshihito

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AU - Motomura, Yuji

AU - Itose, Minoru

AU - Ishiyama, Masato

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