| Namespace | MPheno.ontology | Obsolete | false |
| description | any structural anomaly of the light band on each side of the Z disc (aka Z line), comprising a region of the sarcomere where thin (actin) filaments are not overlapped by thick (myosin) filaments; the I band is isotropic to polarized light and contains actin, troponin, and tropomyosin; each sarcomere includes half of an I band at each end |
