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Identification of r...
Identification of retinol as one of the protein HC chromophores
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- Escribano, Julio (author)
- Hospital Ramón Y Cajal
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- Grubb, Anders (author)
- Lund University,Lunds universitet,Avdelningen för klinisk kemi och farmakologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Cystatin C, njursjukdom, amyloidos och antibiotika,Forskargrupper vid Lunds universitet,Division of Clinical Chemistry and Pharmacology,Department of Laboratory Medicine,Faculty of Medicine,Cystatin C, renal disease, amyloidosis and antibiotics,Lund University Research Groups,Skåne University Hospital
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- Méndez, Enrique (author)
- Hospital Ramón Y Cajal
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(creator_code:org_t)
- Elsevier BV, 1988
- 1988
- English.
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In: Biochemical and Biophysical Research Communications. - : Elsevier BV. - 0006-291X. ; 155:3, s. 1424-1429
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Abstract
Subject headings
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- Protein HC (alias alpha 1-microglobulin) contains so far unidentified yellow-brown fluorescent chromophores. Several preparations of human protein HC were extracted with hexane. Most of the extracts contained a substance which, upon reversed-phase HPLC, co-eluted with all-trans- retinol and had an absorption spectrum identical to that of retinol. The substance was also, like retinol, destroyed by exposure to ultraviolet light and acid pH. These observations strongly support the proposal that protein HC is a member of the newly defined lipocalin protein superfamily. The highest retinol-protein HC molar ratio of the investigated protein HC preparations was 1.6 x 10(-3) indicating that retinol is not the only ligand bound to protein HC. This was confirmed by comparing the absorption spectrum of protein HC before and after hexane extraction.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Läkemedelskemi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Medicinal Chemistry (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)
Keyword
- Alpha-Globulins/metabolism
- Chromatography, High Pressure Liquid
- Humans
- Vitamin A/metabolism
Publication and Content Type
- art (subject category)
- ref (subject category)
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