Abstract:
:N-Acyl ethanolamines (NAEs) constitute a large and diverse class of signaling lipids that includes the endogenous cannabinoid anandamide. Like other lipid transmitters, NAEs are thought to be biosynthesized and degraded on-demand rather than being stored in vesicles prior to signaling. The identification of enzymes involved in NAE metabolism is therefore imperative to achieve a complete understanding of this lipid signaling system and control it for potential therapeutic gain. Recently, an N-acyl phosphatidylethanolamine phospholipase D (NAPE-PLD) was identified as a candidate enzyme involved in the biosynthesis of NAEs. Here, we describe the generation and characterization of mice with a targeted disruption in the NAPE-PLD gene [NAPE-PLD(-/-) mice]. Brain tissue from NAPE-PLD(-/-) mice showed more than a 5-fold reduction in the calcium-dependent conversion of NAPEs to NAEs bearing both saturated and polyunsaturated N-acyl chains. However, only the former group of NAEs was decreased in level in NAPE-PLD(-/-) brains, and these reductions were most dramatic for NAEs bearing very long acyl chains (>or=C20). Further studies identified a calcium-independent PLD activity in brains from NAPE-PLD(-/-) mice that accepted multiple NAPEs as substrates, including the anandamide precursor C20:4 NAPE. The illumination of distinct enzymatic pathways for the biosynthesis of long chain saturated and polyunsaturated NAEs suggests a strategy to control the activity of specific subsets of these lipids without globally affecting the function of the NAE family as a whole.
journal_name
Biochemistryjournal_title
Biochemistryauthors
Leung D,Saghatelian A,Simon GM,Cravatt BFdoi
10.1021/bi060163lsubject
Has Abstractpub_date
2006-04-18 00:00:00pages
4720-6issue
15eissn
0006-2960issn
1520-4995journal_volume
45pub_type
杂志文章相关文献
BIOCHEMISTRY文献大全abstract::Six structural repeat motifs of 58 amino acids are found in the sequence of both mouse and human properdins. Twelve more examples of the motif are available from the sequences of thrombospondin, the terminal complement components, and the thrombospondin-related anonymous protein. The averaged Robson and Chou-Fasman se...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00444a007
更新日期:1989-09-05 00:00:00
abstract::Laminins are large multidomain proteins of the extracellular matrix (ECM) with important functions in the development and maintenance of cellular organization and supramolecular structure, in particular in basement membranes. Each molecule is composed of three polypeptide chains, A (300-400 kDa) and B1 and B2 (180-200...
journal_title:Biochemistry
pub_type: 杂志文章,评审
doi:10.1021/bi00159a001
更新日期:1992-11-10 00:00:00
abstract::4-Azido-2-nitrophenyl phosphate (ANPP) was synthesized and characterized. ANPP, unlabeled or labeled by 32P, was used as a photoreactive analogue of Pi to study the Pi binding site(s) in isolated F1-ATPase and inside-out particles from beef heart mitochondria. In the dark, the phosphate bond of ANPP was cleaved by alk...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00561a013
更新日期:1980-09-30 00:00:00
abstract::The primary structure of the J chain from a human Waldenströms IgM protein has been determined using a combination of automated and conventional Edman degradative procedures. Eighty-five percent of the sequence was established with peptides isolated from tryptic digests of carboxyamidomethylated and citraconylated J c...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00635a002
更新日期:1977-08-09 00:00:00
abstract::An important but poorly characterized contribution to the thermodynamics of protein-DNA interactions is the loss of entropy that occurs from restricting the conformational freedom of amino acid side chains. The effect of restricting the flexibility of several side chains at a protein-DNA interface may be comparable in...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/acs.biochem.8b00195
更新日期:2018-05-15 00:00:00
abstract::Site-directed mutations R177A and R177K in the gene encoding manganese peroxidase isozyme 1 (mnp1) from Phanerochaete chrysosporium were generated. The mutant enzymes were expressed in P. chrysosporium during primary metabolic growth under the control of the glyceraldehyde-3-phosphate dehydrogenase gene promoter, puri...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi990943c
更新日期:1999-08-31 00:00:00
abstract::The serotonin transporter (SERT) is a member of a highly homologous family of proteins responsible for the reuptake of biogenic amines from the synaptic cleft. We took advantage of native restriction sites in SERT to construct a chimeric transporter containing a small (34 amino acid) region of the norepinephrine trans...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi962150l
更新日期:1997-02-11 00:00:00
abstract::The far-ultraviolet circular dichroism spectra of bovine and human prothrombin, prothrombin fragment 1, prethrombin 1, prothrombin fragment 2, and prethrombin 2 (prethrombin 2des(1--13)) were determined and the method of Chen et al. [Chen, Y. H., Yang, J. T., & Martinez, H. M. (1972) Biochemistry 11, 4120--4131; Chen,...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00577a017
更新日期:1979-05-15 00:00:00
abstract::The spin equilibria of several derivatives of human methemoglobin were probed by resonance Raman scattering. The intensity of lines in the Raman spectrum gives a measure of the high-spin (S = 5/2) to low-spin (S = 1/2) ratio which agrees well with the spin equilibria determined from direct magnetic susceptibility meas...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00438a056
更新日期:1989-06-13 00:00:00
abstract::Purple membranes of Halobacterium halobium were studied by differential scanning calorimetry. No transition was detected at temperatures below 70 degrees C. A small endothermic transition was seen at about 80 degrees C and a larger one at 100 degrees C. The larger transition is the irreversible denaturation of bacteri...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00598a026
更新日期:1978-03-07 00:00:00
abstract::Human corticosteroid-binding globulin (CBG) forms a dimer that was isolated by gel filtration, has full binding affinity and capacity, and can be dissociated to the monomer. Monomeric CBG consists of two distinct molecular variants, which were detected by polyacrylamide gel electrophoresis in the presence and absence ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00533a010
更新日期:1982-02-16 00:00:00
abstract::A method to identify poly(L-proline)-type (PII) conformation in crystal structures of globular proteins is presented. Short segments of PII structure were identified in globular protein structures, and these form a significant fraction of the residues which are not assigned to alpha-helix, beta-sheet, and beta-turns. ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00199a028
更新日期:1994-08-23 00:00:00
abstract::Studies of intragenomic homologues in bacterial genomes can provide valuable insights into functional divergence. Three GTP cyclohydrolase II homologues in the Streptomyces coelicolor genome have been shown to catalyze two related but distinct reactions [Spoonamore, J. E., Dahlgran, A. L., Jacobsen, N. E., and Bandari...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi702263z
更新日期:2008-02-26 00:00:00
abstract::Taq and T7 DNA polymerases have become basic molecular biology "tools" for DNA sequence analysis. However, Taq, unlike T7 DNA polymerase, is strongly biased against the incorporation of 2',3'-dideoxynucleotide triphosphates (ddNTPs) indicating very different substrate selectivities. Equilibrium binding and rate consta...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi951682j
更新日期:1996-02-20 00:00:00
abstract::The structure of premature core enzyme, an obligatory intermediate in both in vivo and in vitro assembly of Escherichia coli DNA-dependent RNA polymerase, was compared with that of native core enzyme. Though this assembled but inactive form of core enzyme harbors the gross conformation similar to that of native enzyme...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00573a006
更新日期:1979-03-20 00:00:00
abstract::The propeptide binding/activation site on the vitamin K dependent carboxylase has been localized to a region of carboxylase between residues Arg +50 and Glu +225 by photoinactivation studies using [125I]tyrosyl-labeled benzoylphenylalanine (Bpa)-containing analogs of proFIX19, a peptide containing residues -18 to +1 o...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00002a012
更新日期:1995-01-17 00:00:00
abstract::αB-Crystallin is a chaperone and an anti-apoptotic protein that is strongly expressed in many tissues, including the lens, retina, heart, and kidney. In the human lens, several lysine residues in αB-crystallin are acetylated. We have previously shown that such acetylation is predominant at lysine 92 (K92) and lysine 1...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi400638s
更新日期:2013-11-12 00:00:00
abstract::By classical competitive antagonism, a substrate and competitive inhibitor must bind mutually exclusively to the active site. The competitive inhibition of O-acetyl serine sulfhydrylase (OASS) by the C-terminus of serine acetyltransferase (SAT) presents a paradox, because the C-terminus of SAT binds to the active site...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/acs.biochem.7b00500
更新日期:2017-09-19 00:00:00
abstract::The site-specific chemical modification of NADH-quinone oxidoreductase (complex I) by various functional probes such as fluorophores and microbeads, without affecting the enzyme activity, may allow single-molecule analyses of putative dynamic conformational changes in the enzyme. In an attempt to address this challeng...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi500205x
更新日期:2014-04-15 00:00:00
abstract::15N-labeled hen lysozyme has been studied by 2D and 3D NMR in order to characterize its dynamic behavior. The resonances of all main-chain amide nitrogen atoms were assigned, as were resonances of nitrogen atoms in 28 side chains. Relaxation measurements for the main-chain and arginine and tryptophan side-chain 15N nu...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00012a023
更新日期:1995-03-28 00:00:00
abstract::The mechanism of codon recognition by tRNA is investigated in the system tRNAPhe + UUC by temperature-jump measurements using the Wye base fluorescence as a label. In 0.4 M Na+ and 5 mM Mg2+ a two-step reaction is observed and described quantitatively; UUC is shown to bind preferentially to one of two conformations on...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00557a023
更新日期:1980-08-05 00:00:00
abstract::Bovine hoof keratin was shown to be a substrate for cAMP-dependent protein kinase using [gamma-32P]ATP. Natural-abundance cross-polarization (CP) MAS 13C NMR was used to examine the effect of phosphorylation on keratin structure. When short contact times were used, phosphorylation was shown to increase the number of r...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00458a023
更新日期:1990-02-13 00:00:00
abstract::The structural domains of human apolipoprotein(a) (apo(a)) in the lipoprotein(a) (Lp(a)) particle have been recently investigated by limited proteolysis [Huby, T., Doucet, C., Dieplinger, H., Chapman, J., & Thillet, J. (1994) Biochemistry 33, 3335-3341]. We have shown that apo(a) can be cleaved into two structural dom...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00022a011
更新日期:1995-06-06 00:00:00
abstract::GPIbalpha is an integral membrane protein of the GPIb-IX-V complex found on the platelet surface that interacts with the A1 domain of von Willebrand factor (vWF-A1). The interaction of GPIbalpha with vWF-A1 under conditions of high shear stress is the first step in platelet-driven thrombus formation. Phage display was...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi702428q
更新日期:2008-04-22 00:00:00
abstract::The protease prostate-specific antigen (PSA) is a marker widely used clinically for monitoring prostatic malignancies. Under normal conditions, this enzyme is mainly involved in the post ejaculation degradation of the major human seminal protein, the seminal plasma motility inhibitor precursor/semenogelin I (SPMIP/SgI...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi9626158
更新日期:1997-04-01 00:00:00
abstract::FKBP12, a small human enzyme, aids protein folding by catalyzing cis-trans isomerization of peptidyl-prolyl bonds, and is involved in cell signaling pathways, calcium regulation, and the immune response. The underlying molecular mechanisms are not fully understood, but it is well-known that aromatic residues in the ac...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/acs.biochem.6b01157
更新日期:2017-01-10 00:00:00
abstract::The dimeric nature of the HIV protease has been exploited to devise a novel mode of inhibiting the enzyme. The use of defective monomers or nonidentical subunits to exchange with wild-type homodimers produces catalytically defective heterodimers. Incubation of the HIV1 or HIV2 protease with a 4-fold molar excess of an...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00215a016
更新日期:1991-01-08 00:00:00
abstract::Analogues of tri- and tetrapeptide substrates of carboxypeptidase A in which the scissile peptide linkage is replaced with a phosphonate moiety (-PO2--O-) were synthesized and evaluated as inhibitors of the enzyme. The inhibitors terminated with either L-lactate or L-phenyllactate [designated (O) Ala and (O) Phe, resp...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00441a022
更新日期:1989-07-25 00:00:00
abstract::Both agonist- and antagonist-bound glucocorticoid receptors (GRs) and progesterone receptors (PRs) regulate gene transcription with the assistance of corepressors (NCoR and SMRT) and coactivators (TIF2/GRIP1, SRC1, and AIB1). Receptor binding of these cofactors is competitive and is considered to involve interactions ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi7004575
更新日期:2007-07-10 00:00:00
abstract::In reticulocytes, a single ribosomal protein, S13, has been shown to be phosphorylated by the cAMP-regulated protein kinases. The 40S ribosomal subunits were phosphorylated in vitro with [gamma-32P]ATP to facilitate the identification of S13 during the two-step purification procedure. Total ribosomal protein from the ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00604a003
更新日期:1978-05-30 00:00:00