REAGENT or RESOURCE	SOURCE	IDENTIFIER
Antibodies
MHC antibody (MF20)	R&D	MAB4470; RRID: AB_1293549
FASR/MYH1&2 antibody (MY-32)	Sigma	M4276; RRID: AB_477190
MYH2 antibody	Millipore	MABT840
MYH3 antibody	Atlas antibodies	A75757
MYH7 antibody (A4.840)	Santa Cruz	sc-53089; RRID: AB_2147281
MYH8 antibody	Novus Biologicals	NBP2-41309
Sarcomeric α-actinin	Abcam	ab90776; RRID: AB_10670308
Dystrophin antibody (rod-domain)	Leica	NCL-DYS1; RRID: AB_442080
RYR1 antibody (D4E1)	Cell Signaling Technology	8153; RRID: AB_2797637
Myogenin antibody (F5D)	Santa Cruz	sc-12732; RRID: AB_627980
TBP antibody (D5C9H)	Cell Signaling Technology	44059; RRID: AB_2799258
Chemicals, peptides, and recombinant proteins
StemFit AK02N	Reprocell	ECAK02N
Primate ES Cell Medium	Reprocell	RCHEMD001A
Knockout serum replacement	Thermo Fisher	10828028
αMEM	Nacalai	21444-05
Easy iMatrix-511	Nacalai	892011
Matrigel growth factor reduced	BD	356230
Collagen solution	Nippi	891500
Blasticidin	Wako	026-18711
Puromycin	Sigma	P8833
Y-27632	Wako	034-24024
Cal-520	AAT Bioquest	21130
Insulin	Wako	093-06351
Retinoic acid	Sigma	R2625
Thyroid hormones	Sigma	T6397
SB431542	Wako	198-16543
Accutase	Nacalai	AT104
Doxycycline	Nacalai	19088-71
Horse serum	Sigma	H1138
2-mercaptoethanol	Sigma	21985023
Glucose	Invitrogen	A24940-10
Blocking one	Nacalai	03953-95
RIPA buffer	Pierce	89900
A complete mini protease inhibitor cocktail	Roche	1183617001
FluoroBrite DMEM	Invitrogen	A18967-01
Critical commercial assays
RNeasy mini kit	QIAGEN	74104
PrimeScript RT reagent kit	Takara	RR037
BAC protein assay kit	Pierce	23228
IL-6 Quantikine ELISA kit	R&D	D6050
Caspase-Glo 8	Promega	G8200
Caspase-Glo 9	Promega	G8210
LANCE Ultra cAMP Detection kit	PerkinElmer	TRF0262
Experimental models: Cell lines
DMDΔ44 hiPSC line	Shoji et al.21	Shoji et al.21
DMDΔ46-47 hiPSC line	Shoji et al.21	Shoji et al.21
409B2 hiPSC line	Okita et al.71	Okita et al.
Software and algorithms
GraphPad Prism 7.0e	GraphPad	N/A
Image Lab	Bio-Rad	N/A
Microsoft Excel	Microsoft	N/A
Microsoft Word	Microsoft	N/A
Adobe Photoshop	Adobe	N/A
Adobe Illustrator	Adobe	N/A