REAGENT or RESOURCE	SOURCE	IDENTIFIER
Antibodies
TotalSeq-A0251 anti-human Hashtag 1 Antibody	BioLegend	394601; RRID:AB_2750015
TotalSeq-A0252 anti-human Hashtag 2 Antibody	BioLegend	394603; RRID:AB_2750016
TotalSeq-A0254 anti-human Hashtag 4 Antibody	BioLegend	394607; RRID:AB_2750018
APC/Cyanine7 anti-human CD45 Antibody	BioLegend	368515; RRID:AB_2566375
PerCP/Cyanine5.5 anti-human CD31 Antibody	BioLegend	303131; RRID:AB_2566174
FITC Mouse Anti-Human CD34	BD PharMingen	560942; RRID:AB_10562559
APC Mouse anti-Human CD73	BD PharMingen	560847; RRID:AB_10612019
PE-Cy7 Mouse Anti-Human CD90	BD PharMingen	561558; RRID:AB_10714644
PE Mouse anti-Human CD105	BD PharMingen	560839; RRID:AB_2033932
FITC Annexin V Apoptosis Detection Kit with PI	BioLegend	640914
APC/Cyanine7 Mouse IgG1, κ Isotype Ctrl Antibody	BioLegend	400128; RRID:AB_2892538
PerCP/Cyanine5.5 Mouse IgG1, κ Isotype Ctrl Antibody	BioLegend	400149; RRID:AB_893680
PE-Cy7 Mouse IgG1 κ Isotype Control	BD PharMingen	557872; RRID:AB_396914
APC Mouse IgG1 κ Isotype Control	BD PharMingen	554681; RRID:AB_398576
PE Mouse IgG1, κ Isotype Control	BD PharMingen	555749; RRID:AB_396091
FITC Mouse IgG1, κ Isotype Control	BD PharMingen	555748; RRID:AB_396090
Biological samples
Human tendon progenitor cells	Patellar tendon samples attained by Dr. Jason Dragoo	N/A
Chemicals, peptides, and recombinant proteins
Fixable Viability Stain 450	BD PharMingen	562247
Deposited data
Single cell RNA sequencing datasets	This paper	GEO accession GEO: GSE150482
Oligonucleotides
TUFM qPCR primers	IDT	Hs.PT.58.4007037
TFAM qPCR primers	IDT	Hs.PT.58.4391001
BAX qPCR primers	IDT	Hs.PT.56a.19141193.g
GAPDH qPCR F primer	IDT	CAATGACCCCTTCATTGACC
GAPDH qPCR R primer	IDT	TTGATTTTGGAGGGATCTCG
Software and algorithms
R (4.0.1)	CRAN	N/A
Seurat	Stuart∗,Butler∗,et al., Cell 2019	N/A
Excel	Microsoft	N/A
GraphPad Prism	GraphPad	N/A
CITE-seq-Count	https://github.com/Hoohm/CITE-seq-Count	N/A
MAST	Finak et al., Genome Biol 2015	N/A
FlowJo	Tree Star	N/A