Thermo scientific pageruler unstained low range protein ladder is a mixture of seven purified proteins and peptides 3 4 to 100 kda for use as size standards in peptide and small protein gel electrophoresis. Thermo scientific pageruler plus prestained protein ladder is a mixture of nine 9 blue orange and green stained proteins 10 to 250kda for use as size standards in protein electrophoresis sds page and western blotting. The protein ladder is supplied in a ready to use format for direct loading onto ge. 
				
			
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