The phrase "a small fraction present" is correct and usable in written English.
It can be used when referring to a minor part or percentage of something that is currently available or existing in a particular context.
Example: "In the survey results, a small fraction present indicated a preference for the new product design."
Alternatives: "a tiny portion available" or "a minor segment present".
But they supply only a small fraction of present energy needs.
Strikingly, with mitochondria from Δ aim24 cells the majority of Mic10 was found as a ca.300 kDa complex, whereas only a small fraction was present in the 1.5 MDa complex upon gel filtration.
The heparin's small fraction presents high affinity to FGF-7, particularly supporting the FGF7/FGFRIIIb signaling [ 60].
If it came down, the zoning mandates that any new structure could be only a small fraction of the present building's size.
However, a small fraction of Mn3+ present in the pristine material also participates in electrochemical processes via a Mn3+/Mn4+ redox reaction.
The relevant wavelengths for thermo-spheric heating are the "ionizing" ones ≤1000 Å (e.g., Hunten, 1993), which contain only a small fraction of the present solar spectral power.
For example, we now realize that, in most environments, the culturable microbes represent but a small fraction of those present.
C1QBP/p32 is mainly localized to the mitochondrial matrix [30], but a small fraction is also present in the nucleus, which suggests a role for p32 as a factor mediating nucleus-mitochondrial crosstalk.
Notably, adipocytes accounted for only a small fraction of cells, present in same quantities, in both genotypes at Lac10.
As only a small fraction of those presenting with AAV are exposed to these chemical triggers, other environmental agents must be involved, and these are commonly assumed to be infections, a view re-enforced by increasing evidence that bacterial infections are the initial event that breaks tolerance, resulting in autoimmunity in other contexts.
