The phrase "assembly activity" is correct and usable in written English.
It can be used to refer to an event or task involving the gathering or assembling of items, people, or ideas.
Example: "The assembly activity will take place in the main hall, where participants will collaborate to build the project."
Alternatives: "construction task" or "gathering event".
Our studies revealed that the E3 enzymes, Rsp5p and the Anaphase Promoting Complex (APC), are required for an in vitro chromatin assembly activity that is most active during mitosis (14, 15).
Next, we sought to investigate whether reduced SMN levels and snRNP assembly activity resulted in decreased levels of newly assembled snRNPs in SMA cells.
This allowed us to examine whether these events were also associated with activation of OTc assemblies, which might be expected if assembly activity represents premotor activity upstream of oculomotor outputs.
This assembly activity includes discussion points around the film Mandela: Long Walk to Freedom.
This is especially remarkable considering the ten-fold decrease in snRNP assembly activity in neural tissues from SMA mice.
Thus, differences in the snRNP assembly activity of distinct tissues from normal mice are consistent with these studies.
Next, we investigated snRNP assembly activity in spinal cord extracts from the same mice at postnatal day 3.
Indeed, we demonstrated that snRNP assembly activity is dramatically reduced in spinal cord extracts from severe SMA mice (Figure 3).
The dimer form of SIP1 interacts with dimer forms of SMN and enhances the SMN oligomer formation and the assembly activity of snRNP [48].
We assayed calpain susceptibility of these mutations, along with the A111G mutation, which has normal snRNP assembly activity and moderate Sm protein and SMN association ability [49], [85].
Moreover, extracts from human fibroblast and lymphoblast cell lines of type I SMA patients have reduced snRNP assembly activity compared with normal controls [32].
