Proximal part of the ciliary shaft to which the inversin protein (also called Inv) specifically localizes. The inversin compartment appears to have a different protein composition than the rest of the cilium, although there is no structure that separates it form the distal part of the cilium.
Comment:
Note that cilia and eukaryotic flagella are deemed to be equivalent.
Synonyms:
exact_synonym:
Inv compartment of the cilium; cilial inversin compartment; cilium inversin compartment; flagellar inversin compartment; flagellum inversin compartment