CBP70, a glycosylated nuclear lectin
CBP70, a glycosylated nuclear lectin
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CBP70,一种糖基化核凝集素
DOI:
--
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发表时间:
1997
影响因子:
4
通讯作者:
A. Seve
中科院分区:
文献类型:
--
作者:
C. Rousseau;M. Felin;M. Doyennette‐Moyne;A. Seve
Some years ago, a lectin designated CBP70 that recognized glucose (Glc) but had a stronger affinity for N‐acetylglucosamine (GlcNAc), was first isolated from HL60 cell nuclei. Recently, a cytoplasmic form of this lectin was described, and one 82 kDa nuclear ligand was characterized for the nuclear CBP70. In the present study, the use of Pronase digestion and the trifluoromethanesulphonic acid (TFMS) procedure strongly suggest that the nuclear and the cytoplasmic CBP70 have a same 23 kDa polypeptide backbone and, consequently, could be the same protein. In order to know the protein better and to obtain the best recombinant possible in the future, the post‐translational modification of the nuclear and cytoplasmic CBP70 was analyzed in terms of glycosylation. Severals lines of evidence indicate that both forms of CBP70 are N‐ and O‐glycosylated. Surprisingly, this glycosylation pattern differs between the two forms, as revealed by β‐elimination, hydrazinolysis, peptide‐N‐glycosydase F (PNGase F), and TFMS reactions. The two preparations were analyzed by affinity chromatography on immobilized lectins [Ricinus communis‐I agglutinin (RCA‐I), Arachis hypogaea agglutinin (PNA), Galanthus nivalis agglutinin (GNA), and wheat germ agglutinin (WGA)] and by lectin‐blotting analysis [Sambucus nigra agglutinin (SNA), Maackia amurensis agglutinin (MAA), Lotus tetragonolobus (Lotus), succinylated‐WGA, and Psathyrella velutina agglutinin (PVA)]. Both forms of CBP70 have the following sugar moities: terminal βGal residues, Galβ1–3 GalNAc, Man α1–3 Man, sialic acid α2–6 linked to Gal or GalNAc; and sialic acid α2–3 linked to Gal. However, only nuclear CBP70 have terminal GlcNAc and α‐L‐fucose residues.
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DOI:
10.1016/s0021-9258(19)57510-x
发表时间:
1986-06
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
G. Holt;G. Hart
通讯作者:
G. Holt;G. Hart
DOI:
10.1073/pnas.89.12.5398
发表时间:
1992-06-15
影响因子:
11.1
作者:
SCOTT, JK;LOGANATHAN, D;GOLDSTEIN, IJ
通讯作者:
GOLDSTEIN, IJ
DOI:
--
发表时间:
1994-08
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
S. Barondes;D. Cooper;M. Gitt;H. Leffler
通讯作者:
S. Barondes;D. Cooper;M. Gitt;H. Leffler
DOI:
10.1016/s0021-9258(19)39838-2
发表时间:
1990-02
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
R. S. Haltiwanger;G. D. Holt;G. Hart
通讯作者:
R. S. Haltiwanger;G. D. Holt;G. Hart
DOI:
10.1016/s0021-9258(18)82216-5
发表时间:
1993-05
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
William G. Kelly;M. Dahmus;G. Hart
通讯作者:
William G. Kelly;M. Dahmus;G. Hart