A 77-01 is a potent inhibitor of TGF-β type I receptor superfamily activin-like kinase ALK5 with IC50 of 25 nM.

A novel, potent, brain permeant PKC inhibitor with IC50 of 80 nM, without detectable binding to the estrogen receptor (Ki>10 uM).

A83-01 is a selective inhibitor of TGF-β type I receptor ALK5 kinase, type I activin/nodal receptor ALK4 and type I nodal receptor ALK7 (IC50 values are 12, 45 and 7.5 nM respectively).

Bisindolylmaleimide X is a cell-permeable, reversible, ATP-competitive protein kinase C (PKC) inhibitor (IC50 = 15 nM, rat brain PKC).

Bisindolylmaleimide X is a cell-permeable, reversible, ATP-competitive protein kinase C (PKC) inhibitor (IC50 = 15 nM, rat brain PKC).

Bryostatin 1 (NSC 339555) is a macrocyclic lactone derived from a marine invertebrate, fuctions as an activator of PKC with high binding affinity (Ki=1.35 nM).

DMH1 is a selective BMP receptor inhibitor with IC50 of 107.9 nM for ALK2, exhibiting no inhibition on AMPK, ALK5, KDR (VEGFR-2) or PDGFR.

Enzastaurin (LY317615) is a potent PKCβ selective inhibitor with IC50 of 6 nM, 6- to 20-fold selectivity against PKCα, PKCγ and PKCε. Phase 3.

EW-7197 is a potent ALK5 inhibitor. EW-7197 showed potent in vivo anti-metastatic activity, indicating its potential for use as an anti-cancer therapy.

GF109203X is a potent PKC inhibitor with IC50 of 20 nM, 17 nM, 16 nM, and 20 nM for PKCα, PKCβI, PKCβII, and PKCγ, respectively, showing more than 3000-fold selectivity for PKC as compared to EGFR, PDGFR and insulin receptor.

Go 6983 is a pan-PKC inhibitor against for PKCα, PKCβ, PKCγ and PKCδ with IC50 of 7 nM, 7 nM, 6 nM and 10 nM, respectively; less potent to PKCζ and inactive to PKCμ.

GW6604 is a potent and selective ALK-5 inhibitor with potent anticancer activity.

GW788388 is a potent and selective inhibitor of ALK5 with IC50 of 18 nM, also inhibits TGF-β type II receptor and activin type II receptor activities, but does not inhibit BMP type II receptor.

H 89 2HCl is a potent PKA inhibitor with Ki of 48 nM, 10-fold selective for PKA than PKG, greater than 500-fold selectivity than PKC, MLCK, calmodulin kinase II and casein kinase I/II.

ICA-1 is a potent, specific inhibitor of Protein Kinase C-iota (PKC-ι) with IC50 of 0.1 uM, does not inhibit PKC-ζ, the closely related atypical PKC family member.

ITD-1 is a novel and highly selective TGFβ pathway inhibitor. ITD-1 molecule turns stem cells into heart cells.

K02288 is a potent, and selective type I BMP receptor inhibitor with IC50 of 1.1, 1.8, 6.4 nM for ALK2, ALK1 and ALK6, showing weaker inhibition on other ALKs (3, 4, 5) and ActRIIA.

LDN-214117 is a potent and selective ALK2 inhibitor with IC50 of 22 nM; > 100 fold selectivity for ALK5; also inhibits BMP6(IC50=100 nM).

LY2109761 is a novel selective TGF-β receptor type I/II (TβRI/II) dual inhibitor with Ki of 38 nM and 300 nM, respectively; shown to negatively affect the phosphorylation of Smad2.

LY2157299 is a potent TGFβ receptor I (TβRI) inhibitor with IC50 of 56 nM. Phase 2.

LY3200882 is a novel, highly selective TGFβRI small molecule inhibitor.

LY-333,531 Hydrochloride is a potent, selective inhibitor of Protein Kinase C isozymes, PKC beta I (IC50 = 4.7 nM) and PKC beta II (IC50 = 5.9 nM). It is potentially beneficial for cancer research.