Purification of C-reactive protein

Tohru Ikuta, H. Okubo, H. Yukimura, H. Ishibashi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A concise method was designed for preparation of C-reactive protein (CRP) from pleural effusion. By addition of L-α-lecithin to the pleural effusion in the presence of calcium ions, a flocculence of the CRP-lecithin complex formed. Subsequent treatment of the CRP-lecithin complex with chloroform and sodium citrate buffer enabled extraction of the CRP in the buffer layer. This extracted CRP was further purified by sequential treatment on column chromatography of DEAE cellulose (DE52) and gel filtration using Sephacryl S-300. The isolated protein was proved be native CRP with a high degree of purity, as determined by electrophoretical and immunological analysis. The yield was 41.8% recovery from the starting material. E(280)(1%) of the CRP preparation was estimated to be 18.75.

Original languageEnglish (US)
Pages (from-to)275-282
Number of pages8
JournalBiochemistry International
Volume6
Issue number2
StatePublished - Jan 1 1983

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C-Reactive Protein
Purification
Lecithins
Pleural Effusion
Buffers
DEAE-Cellulose Chromatography
DEAE-Cellulose
Column chromatography
Buffer layers
Chloroform
Gel Chromatography
Gels
Ions
Calcium
Recovery
Proteins

ASJC Scopus subject areas

  • Biochemistry

Cite this

Ikuta, T., Okubo, H., Yukimura, H., & Ishibashi, H. (1983). Purification of C-reactive protein. Biochemistry International, 6(2), 275-282.

Purification of C-reactive protein. / Ikuta, Tohru; Okubo, H.; Yukimura, H.; Ishibashi, H.

In: Biochemistry International, Vol. 6, No. 2, 01.01.1983, p. 275-282.

Research output: Contribution to journalArticle

Ikuta, T, Okubo, H, Yukimura, H & Ishibashi, H 1983, 'Purification of C-reactive protein', Biochemistry International, vol. 6, no. 2, pp. 275-282.
Ikuta T, Okubo H, Yukimura H, Ishibashi H. Purification of C-reactive protein. Biochemistry International. 1983 Jan 1;6(2):275-282.
Ikuta, Tohru ; Okubo, H. ; Yukimura, H. ; Ishibashi, H. / Purification of C-reactive protein. In: Biochemistry International. 1983 ; Vol. 6, No. 2. pp. 275-282.
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