Streptococcus, enterococcus, aerococcus

Hemolysin

An amboceptor is another name for a hemolysin - a substance which damages the membranes of red blood cells and thus releases hemoglobin.

Some proteins can indeed be toxic. However, note that it is rare for a protein to be toxic.
Yes pathogens produce and secrete toxic proteins to invade their host. Bacterial toxin such as hemolysin A, neurotoxin, botulinum toxin, tetanus toxin, Shiga toxin are all proteins. They are strongly antigenic can elicit immune response.

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 5 words with the pattern -E---YS--. That is, nine letter words with 2nd letter E and 6th letter Y and 7th letter S. In alphabetical order, they are:

hemolysed

hemolyses

hemolysin

hemolysis

perimysia