Antibody:

clone B4

Structure	Cell Type	Level	Pattern	Image	Note
TS12: cardiac muscle tissue	cardiac muscle cell	Present		9_E8-8.5 merge +/+ , 9_E8-8.5 myomesin +/+	Staining was observed in a periodic dot-like or striped pattern along the myofibrils (depending on their thickness), where it colocalized with gaps in F-actin staining.

Structure	Cell Type	Level	Pattern	Image	Note
TS12: cardiac muscle tissue	cardiac muscle cell	Present		9_E8-8.5 merge -/- , 9_E8-8.5 myomesin -/-	In the mutant, short sets of periodic myomesin dots were frequently found located along structures with continuous F-actin staining. However, myomesin staining never became striated. Independent aggregates of myomesin and F-actin that did not colocalize were also observed.

Structure	Cell Type	Level	Pattern	Image	Note
TS15: cardiac muscle tissue	cardiac muscle cell	Present		9_E9.5 myomesin +/+ , 9_E9.5 merge +/+	In E9.5 wild-type embryos, striations of myomesin staining became increasingly obvious, due to lateral alignment of the myofibrils.

Structure	Cell Type	Level	Pattern	Image	Note
TS15: cardiac muscle tissue	cardiac muscle cell	Present		9_E9.5 myomesin -/- , 9_E9.5 merge -/-	In the mutant, short sets of periodic myomesin dots were frequently found located along structures with continuous F-actin staining. However, myomesin staining never became striated. Independent aggregates of myomesin and F-actin that did not colocalize were also observed.