We examined CycT1 and phosphorylated-CDK9 (Thr186 pCDK9 - a marker of activated P-TEFb), activation markers (CD25, CD69, CD38, HLA.DR, and Ki67), and other proteins regulated by HIV infection for comparison (CD4, p21, beta7 integrin, CD62L, and HLA.ABC). Here, CCNT1 is linked to HIV infectious disease.