Results 51 to 60 of about 3,218 (202)

Type 1 polyisoprenoid diphosphate phosphatase modulates geranylgeranyl-mediated control of HMG CoA reductase and UBIAD1

eLife, 2021
UbiA prenyltransferase domain-containing protein-1 (UBIAD1) utilizes geranylgeranyl pyrophosphate (GGpp) to synthesize the vitamin K2 subtype menaquinone-4. The prenyltransferase has emerged as a key regulator of sterol-accelerated, endoplasmic reticulum
Rania Elsabrouty, Youngah Jo, Seonghwan Hwang, Dong-Jae Jun, Russell A DeBose-Boyd   +4 more
doaj   +1 more source

Reduced Activity of Geranylgeranyl Reductase Leads to Loss of Chlorophyll and Tocopherol and to Partially Geranylgeranylated Chlorophyll in Transgenic Tobacco Plants Expressing Antisense RNA for Geranylgeranyl Reductase1 [PDF]

Plant Physiology, 1999
AbstractThe enzyme geranylgeranyl reductase (CHL P) catalyzes the reduction of geranylgeranyl diphosphate to phytyl diphosphate. We identified a tobacco (Nicotiana tabacum) cDNA sequence encoding a 52-kD precursor protein homologous to the Arabidopsis and bacterial CHL P.
Ryouichi Tanaka, Ulrike Oster, Elisabeth Kruse, Wolfhart Rüdiger, Bernhard Grimm   +4 more
openaire   +1 more source

Towards Complete Sets of Farnesylated and Geranylgeranylated Proteins

PLoS Computational Biology, 2005
Three different prenyltransferases attach isoprenyl anchors to C-terminal motifs in substrate proteins. These lipid anchors serve for membrane attachment or protein-protein interactions in many pathways. Although well-tolerated selective prenyltransferase inhibitors are clinically available, their mode of action remains unclear since the known ...
Sebastian Maurer-Stroh, Manfred Koranda, Wolfgang Benetka, Georg Schneider 0001, Fernanda L. Sirota, Frank Eisenhaber   +5 more
openaire   +5 more sources

Farnesyltransferase Deficiency in Cardiomyocytes Initiates Senescence and Contributes to Cardiac Fibrosis

Advanced Science, Volume 13, Issue 26, 8 May 2026.
Lipid overload suppresses SREBF2‐mediated FNTB expression, leading to defective Lamin A maturation and nuclear envelope instability. This nuclear catastrophe triggers a pro‐fibrotic senescence program in cardiomyocytes. Notably, restoring nuclear integrity via AAV9‐based gene therapy effectively attenuates cardiac remodeling, identifying the ...
Yuxiao Chen, Lian Lou, Xuan Zhang, Lin Yan, Qi Zhang, Wen Shi, Jie Ding, Xu Lin, Rong Jiang, Shuo Liu, Thida Sok, Pengli Wang, Yun Mou, Jie Han, Shenjiang Hu, Xiaogang Guo, Jian Yang   +16 more
wiley   +1 more source

Structure, regulation and cellular functions of Rab geranylgeranyl transferase and its cellular partner Rab Escort Protein [PDF]

, 2012
Rab geranylgeranyl transferase is an enzyme responsible for double geranylgeranylation of Rab proteins in all eukaryotic cells. In the present article we would like to focus on new findings concerning the holoenzyme structure and mechanism of catalytic ...
Swiezewska, Ewa, Gutkowska, Malgorzata
core  

Mevalonate biosynthesis pathway regulates the development and survival of brown adipocytes

iScience, 2023
Summary: The high thermogenic activity of brown adipose tissue (BAT) has received considerable attention. Here, we demonstrated the role of the mevalonate (MVA) biosynthesis pathway in the regulation of brown adipocyte development and survival.
Jungin Kwon, Yu-Sheng Yeh, Satoko Kawarasaki, Hiroto Minamino, Yoshihito Fujita, Yuko Okamatsu-Ogura, Haruya Takahashi, Wataru Nomura, Shigenobu Matsumura, Rina Yu, Kazuhiro Kimura, Masayuki Saito, Nobuya Inagaki, Kazuo Inoue, Teruo Kawada, Tsuyoshi Goto   +15 more
doaj   +1 more source

TEAD1 Enhances Exosome Secretion and Promotes Exosome‐Mediated Tissue Regeneration

Advanced Science, Volume 13, Issue 25, 4 May 2026.
TEAD1 functions as a crucial molecular switch regulating exosome secretion in various cell types. TEAD1 enhances exosome secretion by upregulating key proteins associated with exosome secretion, including RAB11, CD9, and SNAP23. This study reveals a novel role for TEAD1 in regulating exosome secretion and tissue regeneration, particularly in diabetic ...
Yan Pu, Yi Wan, Wenhao Shi, Bin Li, Haiyue Zhang, Jun Wu, Lingling Li, Wenjia Guo, Chen Ding, Wenjun Yang   +9 more
wiley   +1 more source

Rab geranylgeranylation occurs preferentially via the pre-formed REP–RGGT complex and is regulated by geranylgeranyl pyrophosphate

Biochemical Journal, 2008
Prenylation (or geranylgeranylation) of Rab GTPases is catalysed by RGGT (Rab geranylgeranyl transferase) and requires REP (Rab escort protein). In the classical pathway, REP associates first with unprenylated Rab, which is then prenylated by RGGT. In the alternative pathway, REP associates first with RGGT; this complex then binds and prenylates Rab ...
Baron, Rudi A., Seabra, Miguel C
openaire   +3 more sources

The Contribution of Cholesterol and Squalene Synthase in Cancer: Molecular Mechanisms, Lipid Rafts and Therapeutic Approaches

Medicinal Research Reviews, Volume 46, Issue 2, Page 352-381, March 2026.
ABSTRACT A plethora of cellular signaling pathways are dysregulated in cancer cells, promoting carcinogenesis and migration. Cholesterol has recently been linked to cancer by several subcellular mechanisms, especially by its involvement in the formation of lipid rafts, which promote oncogenic signaling and cancer cell invasion. Squalene synthase (SQS),
Danai Mavridi, Theodora Katavati, Angeliki P. Kourounakis   +2 more
wiley   +1 more source

Simvastatin suppresses self-renewal of mouse embryonic stem cells by inhibiting RhoA geranylgeranylation

, 2007
Statins, 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors, were originally developed to lower cholesterol. Their pleiotropic (or cholesterol-independent) effects at the cellular and molecular levels are highly related to numerous cellular ...
M H Lee, Yeesook Cho, Y M Han
core   +2 more sources