Mass spectrometry analyses of rat 2b myosin heavy chain isoform

. 2007 ; 56 (5) : 659-662.

Jazyk angličtina Země Česko Médium print

Typ dokumentu časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/pmid17973598

We have separated 2b myosin heavy chain (MyHC) isoform from the rat extensor digitorum longus muscle by SDS-PAGE and analyzed it by two subsequent mass spectrometry techniques. After tryptic digestion, the obtained peptides were identified by Matrix-Assisted Laser Desorption/Ionisation reflectron Time of Flight mass spectrometry (MALDI-TOF MS) and sequenced by liquid chromatography tandem mass spectrometry (ESI LC/MS/MS). The analyzed peptides proportionally covered 30 % of the 2b MyHC isoform sequence. The results suggest that the primary structure is identical with the highest probability to a NCBI database record ref|NP_062198.1|, representing the last updated record of rat 2b isoform. Nonetheless, four peptides carrying amino acid substitution(s) in comparison with the NCBI database record were identified.

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