Part of - deprecated

See http://obofoundry.org/ro#part_of

In GO (and in RO), A part_of B means that every A is part_of some B.

For example: nucleus part_of cell

Contrast with has_part

Annotation Examples:

Enhancing Cell Component Annotations

Specifying that a gene product is located in a cellular component of a specific cell type

Examples of these usages of occurs_in can be found on the documentation page for Column_16:_Cell_Type

Enhancing Molecular Function and Biological Process Annotations

Specifying the developmental stage at which a process occurs

We can use a developmental stage ontology and the part_of relation. part_of is used because both the process/function and the developmental stages are things with temporal parts (they are occurrents in bfo-speak).

For example, apoptosis during Segmentation:1-4 somites in zebrafish

 col5: GO:0006915
 col16: part_of(ZFS:0000023)