RRC ID 18209
著者 Watanabe K, Tsunoda K, Itoh M, Fukui M, Mori H, Hitomi K.
タイトル Transglutaminase 2 and Factor XIII catalyze distinct substrates in differentiating osteoblastic cell line: utility of highly reactive substrate peptides.
ジャーナル Amino Acids
Abstract Differentiated osteoblastic cell line, MC3T3-E1 expresses transglutaminase 2 (TG2) and Factor XIII (FXIII). In previous studies, we identified isozyme-specific and highly reactive glutamine-donor substrate peptides (pepF11KA and pepT26) for each isozyme. Using these peptides, we compared the reaction products with lysine-donor substrates for each isozyme in differentiating MC3T3-E1 cells. By this analysis, distinct substrates for the activated TG2 and FXIII were detected in cultured cellular extract. Possible substrates that incorporated biotin-labeled peptides were further purified using streptavidin-affinity chromatography. Several isozyme-specific substrates were identified by mass spectrometry analysis of the purified fractions. These analyses also indicate the benefit of the substrate peptides for obtaining distinct substrates in a reaction mixture where two isozymes co-exist.
巻・号 44(1)
ページ 209-14
公開日 2013-1-1
DOI 10.1007/s00726-011-1131-8
PMID 22045386
MeSH 3T3 Cells Animals Cell Differentiation* Factor XIII / metabolism* GTP-Binding Proteins / metabolism* Mice Osteoblasts / enzymology* Osteoblasts / physiology Peptide Fragments / metabolism Protein Glutamine gamma Glutamyltransferase 2 Protein Interaction Mapping Substrate Specificity Transglutaminases / metabolism*
IF 3.063
引用数 11
WOS 分野 BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
ヒト・動物細胞 MC3T3-E1(RCB1126)