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. 2021 May;99(5):342–357. doi: 10.1124/molpharm.120.000197

TABLE 2.

Continuation of list from Table 1 of protein phosphosites in MA-10 cells that are increased by a combination of PDE4 and PDE8 inhibitors

Fold Incr. Protein Name/Function Gene Symbol P04 sequence
31 5.7 γ-Taxilin–ATF4/Creb2-binding protein Txlng _KHS(ph)LEGDEGSDFITK_
32 5.6 Serine/threonine-protein kinase SIK3 Sik3/QSK _RFS(ph)DGAASIQAFK_
33 5.4 Neuron navigator 1 Nav1 _KTS(ph)LDVSNSVEPGFLA
34 5.4 cAMP-regulated phosphoprotein 19 Arpp19 DHIPTPQDLPQRKPS(ph)L
35 5.1 Autophagy-related protein 16-1 Atg16l1 _RLS(ph)QPAGGLLDSITNI
36 5.1 Protein ETHE1, mitochondrial Ethe1 _RLS(ph)QQSASGAPVLLR
37 4.9 Perilipin-1 Plin1 _RLS(ph)TQFTAANELACR
38 4.7 ADP-ribosylation factor GTPase-activating prot 1 Arfgap1 _RSS(ph)DSWDVWGSGSA
39 4.7 SLAIN motif–containing protein 2 Slain2 _LS(ph)LQGHPTDLQTSNV
40 4.7 TBC1 domain family member 10B Tbc1d10b _RAS(ph)AGPVPGAVVIAE
41 4.6 A-kinase anchor prot 1, mitochondrial, Dakap1 Akap1 _RLS(ph)EEACPGVLSVAPT
42 4.5 RNA polymerase II nuclear localization protein Slc7a6os _KTS(ph)DPDVILCNSVELIR
43 4.4 TBC1 domain family member 25 Tbc1d25; _RSS(ph)LTTAALPFTQSILS
44 4.4 Vesicle-trafficking protein SEC22b Sec22b _NLGS(ph)INTELQDVQR_
45 4.2 Low-affinity cationic amino acid transporter 2 Slc7a2 _NLS(ph)LPFILHEK_
46 4.1 Golgin subfamily A member 5 Golga5 _KS(ph)EPDDELLFDFLNSS
47 4.0 CAP-Gly domain–containing linker protein 2 Clip2 _RYS(ph)LIDPASPPELLK_
48 4.0 Nuclear factor related to κ-B–binding protein Nfrkb/INO80 _KGS(ph)LAALYDLAVLKK_
49 3.9 Pleckstrin homol domain family F m 2 (Phafin2) Plekhf2 _RIS(ph)IVESCFGAAGQPL
50 3.9 Cytoskeleton-associated protein 5 Ckap5 _KYS(ph)DTDIEPFLK_
51 3.8 Cytospin-A Specc1l _KGS(ph)SGNASEVSVACL
52 3.8 Kinesin-associated protein 3 Kifap3/Kap3 _LSEVEQLLYYLQNRRDS(p
53 3.8 GRB14 adapter protein Grb14 _RVT(ph)LPAITPIVLQK_
54 3.7 Rho guanine nucleotide exchange factor 2 Arhgef2 _S(ph)LPAGDALYLSFNP
55 3.7 Phospholipase DDHD2 Ddhd2 _KNS(ph)VSINRPAM(ox)S
56 3.5 Protein FAM54B Fam54b _AS(ph)FETLPNISDLCLK_
57 3.5 Rho family GTPase activator (Alsin) Als2 _RLS(ph)LPGLLSQVSPR_
58 3.5 Reg of microtubule dynamics prot 3 (PTPIP51) Fam82a2 _SHS(ph)LPNSLDYAQASE
59 3.5 Serine/arginine repetitive matrix protein 2 Srrm2 _RSS(ph)SELSPEVVEK_
60 3.4 Low-density lipoprot receptor adapter protein 1 Ldlrap1/ARH _NQEGGDVPGTRRDS(ph)

Sites are ranked 31–60 based on fold response to the PDE inhibitor treatment. The underlined gene symbols in bold type face represent some of the phosphoproteins shown in Fig. 3 and 4.