LTP 

LTP (Low Throughput Papers) : The number of records in which this modification site was determined using methods other than discovery mass spectrometry.


 HTP 

HTP (High Throughput Papers): The number of records in which this modification site was assigned using ONLY proteomic discovery mass spectrometry.


       mouse

 
0 1   R98 VKDRDKRRSPFVFEL
0 1   S99 KDRDKRRSPFVFELS
  human

 
S98‑p PKDRGKRssAFVFEL
S99‑p KDRGKRssAFVFELS