Table 2.

Comparison of Lethocerus and Drosophila thick filament proteins.

		Lethocerus indicus		Drosophila melanogaster		Reference
Filament length		2.3 μm		3.2 μm		Reedy (1967) and Gasek et al (2016)
Rotational symmetry		C4		C4		Morris et al (1991), Reedy et al (1981), and this work
Helical parameters		145 Å, 33.98°		145 Å, 33.86°		Hu et al (2016), Irving and Maughan (2000), Perz-Edwards et al (2011), and this work
Non-myosin proteins	Protein	Molecular weight	Ratio to Mhc	Molecular weight	Ratio to Mhc
	Flightin	19 kD	1:2	20 kD	1:2	Qiu et al (2005)
	Myofilin	30 kD	1:2	20 kD	1:2	Qiu et al (2005)
	Paramyosin	107 kD	1:7a	102 kD	1:15	Bullard et al (1973), Vinos et al (1991), Becker et al (1992)
	Miniparamyosin	62 kD		55 kD		Becker et al (1992), Maroto et al (1996)
	Projectin	800 kD		800–1,000 kD		Lakey et al (1990), Ayme-Southgate and Southgate (2006)
	Kettin	700 kD		540 kD		Lakey et al (1993), Bullard et al (2006)
	Stretchin-klp			225, 231 kD		Patel and Saide (2005)

^aLethocerus cordofanus and Lethocerus maximus.