Characterization of Sgcb-null clones by FACS analysis
| Clone | G5 At | G2 At | B5 At | H4 Ven | B9 Ven | B3 Ven | A4 Aor | A9 Aor | D10 Aor |
| ISL1 | + | + | + | − | − | + | − | − | − |
| Sca1 | ++ | ++ | ++ | +++ | +++ | ++ | ++ | + | + |
| c-Kit | + | + | + | − | + | − | ++ | + | + |
| Clone | G5 At | G2 At | B5 At | H4 Ven | B9 Ven | B3 Ven | A4 Aor | A9 Aor | D10 Aor |
| ISL1 | + | + | + | − | − | + | − | − | − |
| Sca1 | ++ | ++ | ++ | +++ | +++ | ++ | ++ | + | + |
| c-Kit | + | + | + | − | + | − | ++ | + | + |
Summary of clones isolated from Sgcb-null hearts and characterized for the expression of cardiac stem cell markers (− < 10%; 10% < + < 30%; 30% < ++ < 70%; 70% < +++ < 100%). At, atrium; Ven, ventricle; Aor, aorta.