"proximity to the end of" is correct and usable in written English.
It typically means that something is near to finishing or concluding. For example, you could say "We are approaching the proximity to the end of this project."
"We made this exception based on the proximity to the end of support for Windows XP".
The reader can estimate, by eye, the best place to open the book, judging from the proximity to the end of the book of the passage being sought.
When he later discovered this date's proximity to the end of the 13th b'ak'tun of the Maya calendar, he revised his hypothesis so that the two dates matched.
The bridge is possibly best known today for its proximity to the end of The Championship Course, the stretch of the Thames used for the Boat Race and other rowing races.
These results suggest that marker density, rather than proximity to the end of the chromosome, explains the variation in Q1 coverage probabilities observed in the primary study.
The lower number of patients with a significant difference between the calculated and actual AHs is likely due to the proximity to the end of growth.
For the intergenic dataset (INTG) we extracted all sequences longer than 1000 basepairs from the T. vaginalis scaffolds that were not annotated as genes (with a designated TVAG number), not identified through mapped transcripts (CDSN and CDSP) and were not found in close proximity to the ends of scaffolds.
An important factor in the forcefulness of the novel is Lucy's proximity to the end, her surly, stubborn crust in facing down the abyss.
The configuration of the stadium, with seats in close proximity to the end zones, creates an atmosphere that can be difficult for visiting teams to cope with.
The assumed CP minus ends were in close proximity to the distal end of the cylinder, and 14 out of 17 minus ends were capped.
They are perfect for private escapes with a close proximity to the quieter end of La Union beach.
