Abstract:
:Significant advances have recently been made in understanding the regulation of Ca(2+)-ATPase by phospholamban and in modeling their structures. However, these insights would be furthered by determining the 3-D structure of both proteins within the membrane, thus revealing the structural basis for their interaction. To this end, we have developed methods for reconstituting purified Ca(2+)-ATPase with recombinant phospholamban. After reconstitution at high lipid-to-protein ratios, we have verified their functional association by measuring calcium transport and ATPase activity. Furthermore, we have grown co-crystals after reconstitution at low lipid-to-protein ratios. The structure of Ca(2+)-ATPase has recently been solved by cryoelectron microscopy at 8-A resolution, thus revealing transmembrane alpha-helices. Using a variety of constraints, we have associated these helices with the predicted transmembrane sequences to produce a detailed model for the packing of transmembrane helices. Structure determination of the co-crystals is currently underway, which we hope will eventually reveal the interaction of phospholamban with Ca(2+)-ATPase at a similar level of detail.
journal_name
Ann N Y Acad Scijournal_title
Annals of the New York Academy of Sciencesauthors
Young HS,Reddy LG,Jones LR,Stokes DLdoi
10.1111/j.1749-6632.1998.tb08260.xsubject
Has Abstractpub_date
1998-09-16 00:00:00pages
103-15eissn
0077-8923issn
1749-6632journal_volume
853pub_type
杂志文章abstract::The Ca2+-pump ATPase of human RBC membranes appears to be exquisitely sensitive to a variety of amphipathic molecules. The acidic protein calmodulin (CaM) activates the enzyme some three- to fivefold with an apparent Kd of approximately 1-5 nM. A variety of other amphipathic anions, such as acidic phospholipids, free ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1982.tb25755.x
更新日期:1982-01-01 00:00:00
abstract::Accelerated atherosclerosis occurs in patients with type III hyperlipoproteinemia and familial hypercholesterolemia. These genetic disorders focus attention on specific types of lipoproteins as being responsible for the development of accelerated coronary artery heart disease. The accumulation of chylomicron remnants ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.1990.tb42274.x
更新日期:1990-01-01 00:00:00
abstract::The natural tetrapeptide acetyl-ser-asp-lys-pro (AcSDKP) is formed in vivo by enzymatic cleavage of the N terminus of thymosin beta4 by prolyl oligopeptidase (POP). Recently, AcSDKP was shown to promote angiogenesis. Because of the critical role of neovascularization in cancer development, the levels of AcSDKP and POP...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.2010.05488.x
更新日期:2010-04-01 00:00:00
abstract::Early dissemination, blood circulation, or homing of single tumor cells in bone marrow and other organs is usually undetectable at primary diagnosis, even by high resolution imaging technologies. However, ultrasensitive approaches now enable the detection of "occult" tumor cells. Many researchers are currently focusin...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2010.05779.x
更新日期:2010-10-01 00:00:00
abstract::Epidemiological observations, clinical mechanistic studies, and basic laboratory research suggest that estrogen therapy is associated with beneficial cardiovascular effects in postmenopausal women. Estrogen has a multitude of biological effects that may account for this apparent benefit (which remains to be proved in ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.2001.tb04016.x
更新日期:2001-12-01 00:00:00
abstract::The following paper on the molecular biology of Barrett's esophagus (BE) includes commentaries on signaling pathways central to the development of BE including Hh, NF-κB, and IL-6/STAT3; surgical approaches for esophagectomy and classification of lesions by appropriate therapy; the debate over the merits of minimally ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.12252
更新日期:2013-10-01 00:00:00
abstract::It is well established for both rat and man that the total testosterone concentration within the testis is far higher than that in serum. We know for the rat that intratesticular testosterone can be reduced by 50-60% without an adverse effect on spermatogenesis but that the required intratesticular testosterone concen...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1336.023
更新日期:2005-12-01 00:00:00
abstract::Hydrogen sulfide (H2 S) is a highly neurotoxic gas. Acute exposure can lead to neurological sequelae among survivors. A drug for treating neurological sequelae in survivors of acute H2 S intoxication is needed. Using a novel mouse model we evaluated the efficacy of cobinamide (Cob) for increasing survival of, and redu...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/nyas.13559
更新日期:2017-11-01 00:00:00
abstract::Tocopherols are known to undergo metabolism to phytyl chain-shortened metabolites excreted in urine. We sought to characterize the pathway, including associated enzymes, involved in this biotransformation. We previously found that human hepatoblastoma (HepG2) cultures metabolized tocopherols to their corresponding sho...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1196/annals.1331.002
更新日期:2004-12-01 00:00:00
abstract::A meta-analysis of 14 clinical studies with RRR- or all-rac-alpha-tocopherol (83,800 subjects) was performed to evaluate whether RRR and all-rac differ in cardiovascular efficacy based on those clinical endpoints that are most consistently documented in the publications of the studies. Odds ratios of treatment versus ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,meta分析
doi:10.1196/annals.1331.066
更新日期:2004-12-01 00:00:00
abstract::Whether T cells promote bone loss following immobilization after spinal cord injury (SCI) remains undetermined. Therefore, wild-type (WT) and T cell-deficient (Tcrb-/- ) male mice underwent sham or contusion SCI to cause hindlimb paralysis. Femurs were isolated and distal and midshaft regions were evaluated by microco...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/nyas.14518
更新日期:2020-10-26 00:00:00
abstract::Advances in understanding the epidemiology of endometriosis have lagged behind other diseases because of methodologic problems related to disease definition and control selection. Nevertheless, a better picture of the epidemiology of endometriosis has emerged over the past few decades. Prevalence estimates of the dise...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2002.tb02761.x
更新日期:2002-03-01 00:00:00
abstract::Plasmacytoid dendritic cells (pDCs) are a rare population of circulating cells that selectively express Toll-like receptors (TLR)7 and TLR9 and have the capacity to produce large amounts of type I interferons (IFNs) in response to viruses or host-derived nucleic acid-containing complexes. Through the production of typ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.2009.05152.x
更新日期:2010-01-01 00:00:00
abstract::The 21st century offers new advances in diagnostic procedures and protocols in the management of esophageal diseases. This review highlights the most recent advances in esophageal diagnostic technologies, including clinical applications of novel endoscopic devices, such as ultrathin endoscopy and confocal laser endomi...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/nyas.13255
更新日期:2016-09-01 00:00:00
abstract::The Na,K-ATPase is composed of two subunits, alpha and beta, and each subunit consists of multiple isoforms. In the case of alpha, four isoforms, alpha1, alpha2, alpha3, and alpha4 are present in mammalian cells. The distribution of these isoforms is tissue- and developmental-specific, suggesting that they may play sp...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2003.tb07214.x
更新日期:2003-04-01 00:00:00
abstract::The extreme toxicity of organophosphorous-based compounds has been known since the late 1930s. Starting in the mid-1940s, many nations throughout the world have been producing large quantities of organophosphorous (OP) nerve agents. Huge stockpiles of nerve agents have since developed. There are reportedly more than 2...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.1998.tb10298.x
更新日期:1998-12-13 00:00:00
abstract::Lymphotoxin is a protein with a MW of 45,000 daltons derived from activated lymphocytes that kills target cells nonspecifically. Kinetic studies indicate that there is a lag period of about 4 hours before cytotoxicity becomes apparent, even at high concentrations of lymphotoxin. Therefore, the role of lymphotoxin in c...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1979.tb47133.x
更新日期:1979-01-01 00:00:00
abstract::Identification of fall risk for patients with known vestibular hypofunction is important because it affects the management and the level of independence of these patients. Patients with bilateral vestibular loss, overall, have a greater incidence of falls than the general community-dwelling population over the age of ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:
更新日期:2001-10-01 00:00:00
abstract::Recent in vivo studies suggest a role for relaxin-3 in feeding and stress. To further elucidate the function of relaxin-3 in the central nervous system, we have employed a complementary approach, based on RNA interference, to modulate relaxin-3 expression. We have designed, constructed, and characterized three microRN...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2008.03816.x
更新日期:2009-04-01 00:00:00
abstract::Mammalian spermatogenesis is a complex developmental process. Spermatozoa, like ova, are uniquely capable of supporting embryonic development. Our approach to understanding this process is to identify genes whose developmental pattern of expression suggests that they may play a role in spermatogenesis. Experiments on ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1987.tb25002.x
更新日期:1987-01-01 00:00:00
abstract::The objective of this study was to visualize androgen receptors (ARs) in the testis, epididymis, and prostate of the stallion by means of immunohistochemistry. Nuclear immunostaining was found in all somatic cells in the testis--Leydig, Sertoli, and peritubular myoid cells; in both types of epithelial cells of the epi...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1327.030
更新日期:2005-04-01 00:00:00
abstract::Loss of sympathetic nerve fibers (SNFs) occurs in inflamed tissue; and select semaphorins, upregulated during inflammation, stimulate repulsion/loss of SNFs. However, it is unknown whether other factors released locally in inflamed tissue, such as norepinephrine, dopamine, and 17β-estradiol, are also repellent. In ord...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2012.06628.x
更新日期:2012-07-01 00:00:00
abstract::An EEG profile for cannabis preparations equated for delta 9-THC activity has been defined in occasional cannabis users in New York and in long-term, high-dose hashish users in Athens. The EEG effects of enhanced alpha activity, decreased beta activity, and decreased mean frequency are dose dependent, both in intensit...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1976.tb49911.x
更新日期:1976-01-01 00:00:00
abstract::The objective of this article is to investigate the influence of endothelin-1 (ET-1) on human monocyte Na(+)/H(+) exchanger (NHE) activity and on the atherosclerosis-related monocyte functions. ET-1 caused an increase in pHi and in (22)Na influx of monocytes. A reversal of ET-1 effect on pHi was observed in the presen...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1397.031
更新日期:2007-01-01 00:00:00
abstract::Many studies have now indicated that micronutrients, such as the carotenoids, tocopherols, and ascorbic acid, can prevent mutagenesis, genotoxic effects, or malignant transformation in bacteria and mammalian tissue, either in cell culture or in organ culture. In addition, multiple papers report that some of these micr...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1111/j.1749-6632.1993.tb39180.x
更新日期:1993-05-28 00:00:00
abstract::This study measured on-road driving behavior in subjects with bilateral vestibular loss (BVL). Data included point-of-regard (what the driver is looking at and attending to), gaze stability (the performance of the vestibulo-ocular reflex), and head movement, during complex maneuvers such as changing lanes, cornering, ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.2008.03733.x
更新日期:2009-05-01 00:00:00
abstract::The flash thermal diffusivity measurement technique is applied to tissue for the first time. Making use of its minimal contact with the specimen, the flash technique is extended to allow for well-defined, biaxial, finite strain. As an example application, the radial component of thermal diffusivity of bovine descendin...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/j.1749-6632.1998.tb10143.x
更新日期:1998-09-11 00:00:00
abstract::Cities modify their local climate, and at the same time they suffer from the local impacts of climate change. Our paper discusses the progress and obstacles in three active research topics that contribute to increasing the capability within the urban climate research community for transferring local climate knowledge ...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1111/nyas.13986
更新日期:2019-01-01 00:00:00
abstract::Leptin is the product of the ob gene located in humans on chromosome 7q31.3. It is a 16-kDa protein named after the Greek "leptos," meaning lean, to indicate the function that this adipocyte-secreted protein was thought to have. Since its discovery, in fact, most of the research focused on the role of leptin in body-w...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章,评审
doi:10.1196/annals.1290.007
更新日期:2003-11-01 00:00:00
abstract::Five hybridoma cell lines secreting anti-PrP antibodies were established from the fusion between mouse myeloma Sp2/0 and spleen cells from mice immunized with recombinant Chinese Luxi yellow cattle (Bos taurus, Luxi) PrP (24-234) or recombinant Chinese small-tailed Han sheep PrP (94-227). According to their Western bl...
journal_title:Annals of the New York Academy of Sciences
pub_type: 杂志文章
doi:10.1196/annals.1373.012
更新日期:2006-10-01 00:00:00