Washington's Birthday, also known as Presidents' Day, is a federal holiday held on the third Monday of February. The day honors presidents of the United States, including George Washington, the USA's first president. George Washington was the first president of the United States of America.
Complement component 5 is a protein that in humans is encoded by the C5 gene.Complement component 5 is involved in the complement system. It is cleaved into C5a and C5b: 1  C5a plays an important role in chemotaxis.2  C5b forms the first part of the complement membrane attack complex.omplement component 5 is the fifth component of complement, which plays an important role in inflammatory and cell killing processes.
Abstract. The complement system is a group of proteins that when activated lead to target cell lysis and facilitates phagocytosis through opsonisation. Individual complement components can be quantified however this does not provide any information as to the activity of the pathway. Start at 1:4 (100ml serum + 300ml VBS) and transfer 200ml of sample into the next labelled tube. 2  Mix thoroughly between dilutions and transfer 200ml to the next dilution with a fresh pipette tip. 3  Repeat until all five dilutions are made. 4  Discard 200ml from the final 1:128 dilution.