Protein
Baseplate puncturing device gp45
Organism
Escherichia phage Mu
Function
Component of the baseplate that forms a central needlelike spike used to puncture the host cell membrane for tube insertion during virus entry. Probably involved in baseplate and tail assembly. Serves as the distal plug of tail tube channel and might regulate the process of the phage DNA and protein ejection into the host cell.
Sequence
MERVNDSALNRLLTPLMRRVRLMLARAVVNVINDGRKVQNLQVGLLDDEESDEVERLQNYGHFSVPLPGAEALIACVGAQRDQGIAVVVEDRRYRPTNLEPGDAGIYHHEGHRIRLTKDGRCIITCKTVEVYADESMTVDTPRTTFTGDVEIQKGLGVKGKSQFDSNITAPDAIINGKSTDKHIHRGDSGGTTGPMQ