OBJECTIVE Renal dopamine receptor D1 played a critical role in the regulation of body blood pressure. Under hypertension, over-phosphorylation of D1 receptor impaired its function. G protein kinase 4 (GRK4) and protein phosphatase 2A (PP2A) exerted the effect to phosphorylate and de-phosphorylate D1 receptor. A current study revealed that the inhibition of GRK4 cannot normalize the phosphorylat...

The cyclin D1 gene is amplified and overexpressed in human breast cancer, functioning as a collaborative oncogene. As the regulatory subunit of a holoenzyme phosphorylating Rb, cyclin D1 promotes cell cycle progression and a noncatalytic function has been described to sequester the cyclin-dependent kinase inhibitor protein p27. Cyclin D1 overexpression correlates with tumor metastasis and cycli...

2.1 The Case All di 6= 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 The Case d0 = 0 < d1 ≤ d2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3 The Case d0 < 0 = d1 < d2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.4 The Case d0 ≤ d1 < d2 = 0 . . . . . . . . . . . . . . . . . . . . . . . ...

A macroscopic approximation of RNA secondary structure (Vialette, CPM 2002): • a subsequence of consecutive bases → an interval • a stacked pairing of two disjoint subsequences → a 2interval Three Binary Relations For two 2-intervals D1 = (I1, J1) and D2 = (I2, J2), D1 and D2 are disjoint if the four intervals I1, J1, I2, and J2 are pairwise disjoint. Preceding: D1 < D2 ⇐⇒ I1 < J1 < I2 < J2. Ne...

The cyanobacterium Synechococcus sp. PCC 7942 possesses a small psbA multigene family that codes for two distinct forms of the photosystem II reaction-center protein D1 (D1:1 and D1:2). We showed previously that the normally predominant D1 form (D1:1) was rapidly replaced with the alternative D1:2 when cells adapted to a photon irradiance of 50 mumol.m-2.s-1 are shifted to 500 mumol.m-2.s-1 and...

UBE1L is the E1-like ubiquitin-activating enzyme for the IFN-stimulated gene, 15-kDa protein (ISG15). The UBE1L-ISG15 pathway was proposed previously to target lung carcinogenesis by inhibiting cyclin D1 expression. This study extends prior work by reporting that UBE1L promotes a complex between ISG15 and cyclin D1 and inhibited cyclin D1 but not other G1 cyclins. Transfection of the UBE1L-ISG1...

Functional interactions between dopamine D1-like receptors and NMDA subtype glutamate receptors have been implicated in the maintenance of normal brain activity and neurological dysfunction. Although modulation of NMDA receptor functions by D1 receptor activation has been the subject of extensive investigation, little is known as to how the activation of NMDA receptors alters D1 function. Here ...