Abstract:
:Squid cartilage chondroitin sulfate E (CS-E) exhibits various biological activities, including anticoagulant activities, lymphoid regulatory activities, and neuroregulatory activities [Ueoka, C., Kaneda, N., Okazaki, I., Nadanaka, S., Muramatsu, T., and Sugahara, K. (2000) J. Biol. Chem. 275, 37407-37413]. These activities are expressed through molecular interactions with specific proteins, including heparin cofactor II, selectins, CD44, chemokines, and the heparin-binding growth factor midkine. Hence, the sugar sequence information is essential for a better understanding of the CS-E functions. Previously, several novel tetrasaccharides containing the unreported 3-O-sulfated glucuronic acid (GlcA) were isolated after digestion of squid cartilage CS-E with testicular hyaluronidase. In this study, hexasaccharides were isolated to obtain more detailed sequence information, especially around the GlcA(3-O-sulfate) residue, and were characterized by fast atom bombardment mass spectrometry and 500 or 600 MHz (1)H NMR spectroscopy. The findings demonstrate one tetrasulfated and five pentasulfated hexasaccharide sequences, five of them being novel. They were composed of three disaccharide building units of either A [GlcA(beta1-3)GalNAc(4-O-sulfate)], E [GlcA(beta1-3)GalNAc(4,6-O-disulfate)], K [GlcA(3-O-sulfate)(beta1-3)GalNAc(4-O-sulfate)], L [GlcA(3-O-sulfate)(beta1-3)GalNAc(6-O-sulfate)], or M [GlcA(3-O-sulfate)(beta1-3)GalNAc(4,6-O-disulfate)], forming E-A-A, M-A-A, K-L-A, E-E-A, K-K-A, and A-M-A hexasaccharide sequences. The K-L tetrasaccharide sequence is to date unreported. The isolated sequences appear to indicate the occurrence of an unreported GlcA 3-O-sulfotransferase specific for chondroitin sulfate. The obtained sequence information will be useful for investigating the structure-function relationship and biosynthesis of CS-E.
journal_name
Biochemistryjournal_title
Biochemistryauthors
Kinoshita A,Yamada S,Haslam SM,Morris HR,Dell A,Sugahara Kdoi
10.1021/bi015577nsubject
Has Abstractpub_date
2001-10-23 00:00:00pages
12654-65issue
42eissn
0006-2960issn
1520-4995pii
bi015577njournal_volume
40pub_type
杂志文章相关文献
BIOCHEMISTRY文献大全abstract::In the cytochrome P450cam-dependent monooxygenase system from Pseudomonas putida, putidaredoxin (Pdx) shuttles electrons between putidaredoxin reductase (Pdr) and P450cam and, thus, must form transient complexes with both partners. 1-Ethyl 3-[3-(dimethylamino)propyl]carbodiimide (EDC) was found to promote formation of...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi901872s
更新日期:2010-01-12 00:00:00
abstract::Simple procedures for the anaerobic preparation of photoactive and stable P840 reaction centers from Chlorobium tepidum and Chlorobium limicola in good yield are presented and quantitated. The subunit composition was tested by cosedimentation in sucrose density gradients. For C. limicola, it minimally comprises four s...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00029a039
更新日期:1995-07-25 00:00:00
abstract::Human ferrochelatase (EC 4.99.1.1) catalyzes the insertion ferrous iron into protoporphyrin IX as the last step in heme biosynthesis, an essential process to most organisms given the vast intracellular functions of heme. Even with multiple ferrochelatase structures available, the exact mechanism for iron insertion int...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi300704c
更新日期:2012-09-11 00:00:00
abstract::We have examined the C cluster in type II CO dehydrogenase (CODH) from Carboxydothermus hydrogenformans using Ni K-edge X-ray absorption near edge spectroscopy and extended X-ray absorption fine structure (EXAFS) spectroscopy. The enzyme was studied under three conditions: "as-isolated" and after treatment with CO or ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi036104e
更新日期:2004-07-20 00:00:00
abstract::Clostridium perfringens epsilon toxin belongs to the aerolysin-like family of pore-forming toxins and is one of the most potent bacterial toxins known. The epsilon toxin causes fatal enterotoxemia in sheep, goats, and possibly humans. Evidence indicates that the toxin binds to protein receptors including hepatitis A v...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi300690a
更新日期:2012-09-25 00:00:00
abstract::Backbone dynamics in the [5',5"-2H2]2'-deoxythymidine labeled duplex dodecamer [d-(CGCGAAT*T*CGC)]2 have been investigated by solid-state 2H NMR. Quadrupolar echo line shapes, spin-lattice relaxation, and quadrupolar echo decay times were obtained over hydration levels ranging from W = 0.0 to 25.2 (moles of H2O/mole o...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00102a014
更新日期:1991-09-24 00:00:00
abstract::Extracellular matrix (ECM) proteins, such as collagen and fibronectin, play vital roles in development and maintenance of hard tissue (bone or tooth) and are, consequently, thoroughly investigated for construction of biomimetic scaffolds in combination with calcium phosphate (CaP) material (the major component of hard...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi050595g
更新日期:2005-09-20 00:00:00
abstract::Integrin beta subunits contain a highly conserved I-like domain that is known to be important for ligand binding. Unlike integrin I domains, the I-like domain requires integrin alpha and beta subunit association for optimal folding. Pactolus is a novel gene product that is highly homologous to integrin beta subunits b...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi016047u
更新日期:2002-04-02 00:00:00
abstract::The bacterial photosynthetic reaction center is the evolutionary ancestor of the Photosystem II reaction center. These proteins share the same fold and perform the same biological function. Nevertheless, the details of their molecular reaction mechanism differ. It is of significant biological and biochemical interest ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi802033k
更新日期:2009-02-17 00:00:00
abstract::The biochemical and structural properties of bovine retinal nucleoside diphosphate kinase were investigated. The enzyme showed two polypeptides of approximately 17.5 and 18.5 kDa on SDS-PAGE, while isoelectric focusing revealed seven to eight proteins with a pI range of 7.4-8.2. Sedimentation equilibrium yielded a mol...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi980853s
更新日期:1998-10-06 00:00:00
abstract::A GTP:RNA guanylyltransferase or capping enzyme has been purified approximately 2000-fold from wheat germ. The enzyme catalyzes the transfer of the GMP residue from GTP to the 5' end of RNA or synthetic polyribonucleotides. Diphosphate-ended polymers were capped more efficiently than molecules with triphosphate ends, ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00531a020
更新日期:1982-01-19 00:00:00
abstract::Recycling of yeast fumarase to permit repetition of its reaction chemistry requires two proton transfers and two conformational changes, in pathways that are different in detail but thematically similar in the two directions. In the malate --> fumarate direction, simple anions such as acetate accelerate the fumarate-o...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi9821521
更新日期:1998-12-22 00:00:00
abstract::Large primary deuterium kinetic isotope effects (1° DKIEs) on enzyme-catalyzed hydride transfer may be observed when the transferred hydride tunnels through the energy barrier. The following 1° DKIEs on kcat/ Km and relative reaction driving force are reported for wild-type and mutant glycerol-3-phosphate dehydrogenas...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/acs.biochem.8b00536
更新日期:2018-07-24 00:00:00
abstract::Tissue factor pathway inhibitor (TFPI) from different cell lines shows up to 15-fold differences in the ratio of anticoagulant to chromogenic activity. The anticoagulant activity was dependent on the purification procedure used and it was possible to isolate two fractions of recombinant TFPI. Only one of these fractio...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00107a002
更新日期:1991-10-29 00:00:00
abstract::Cerebrovascular deposition of fibrillar 39-42 amino acid amyloid beta-protein (Abeta), a condition known as cerebral amyloid angiopathy (CAA), is a key pathological feature of Alzheimer's disease and related disorders including hereditary cerebral hemorrhage with amyloidosis-Dutch type (HCHWA-D). Severe cases of CAA, ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi0002840
更新日期:2000-06-27 00:00:00
abstract::The late intermediates involved in the activation mechanism of bovine rhodopsin are investigated by time-resolved optical absorption spectroscopy. Measurements from 10 μs to 200 ms after photolysis were carried out on membrane suspensions of bovine rhodopsin at a temperature of 15 °C and at pH of 7.3, 8.0, and 8.7. Th...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/acs.biochem.6b00687
更新日期:2016-09-13 00:00:00
abstract::The interaction of bovine spleen profilin with ATP- and ADP-G-actin and poly(L-proline) has been studied by spectrofluorimetry, analytical ultracentrifugation, and rapid kinetics in low ionic strength buffer. Profilin binding to G-actin is accompanied by a large quenching of tryptophan fluorescence, allowing the measu...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00194a011
更新日期:1994-07-19 00:00:00
abstract::The antibiotic bicyclomycin inhibits rho-dependent termination processes by interfering with RNA translocation by preventing RNA binding at the translocation site or by uncoupling the translocation process from ATP hydrolysis. Previous studies have shown that bicyclomycin binds near the ATP hydrolysis pocket on rho. T...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi000504+
更新日期:2000-08-08 00:00:00
abstract::tRNase Z, which exists in almost all cells, is believed to be working primarily for tRNA 3' maturation. In Escherichia coli, however, the tRNase Z gene appears to be dispensable under normal growth conditions, and its physiological role is not clear. Here, to investigate a possibility that E. coli tRNase Z cleaves RNA...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi051972s
更新日期:2006-05-02 00:00:00
abstract::The interactions of a series of spin-labeled fatty acids, in which the nitroxide ring is incorporated in different ways as an integral part of the hydrocarbon chain, with the (Na+,K+)-ATPase in membranes from Squalus acanthias, have been studied by electron spin resonance spectroscopy. The fatty acids are 2,4-, 2,5-, ...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00411a004
更新日期:1988-05-31 00:00:00
abstract::To describe the hydrophobic adsorption of charged molecules to bilayer membranes, one must recognize that the adsorption produces a change in the electrostatic potential at the surface of the membrane. The surface potential produced by the adsorption of the charged molecules can be described most simply by the Gouy eq...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00654a023
更新日期:1976-05-04 00:00:00
abstract::To study the engineering requirements for proton pumping in energy-converting enzymes such as cytochrome c oxidase, the thermodynamics and mechanisms of proton-coupled electron transfer in two designed heme proteins are elucidated. Both heme protein maquettes chosen, heme b-[H10A24]2 and heme b-[delta7-His]2, are four...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi061607g
更新日期:2007-01-09 00:00:00
abstract::Escherichia coli glycerol kinase (EC 2.7.1.30; ATP:glycerol 3-phosphotransferase) is a key element in a signal transduction pathway that couples expression of genes required for glycerol metabolism to the relative availability of glycerol and glucose. Its catalytic activity is inhibited by protein-protein interactions...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00199a040
更新日期:1994-08-23 00:00:00
abstract::The ribonucleoprotein ribonuclease P (RNase P) cleaves all tRNA precursors endonucleolitically to produce the mature 5'-end. Dictyostelium discoideum RNase P displays an absolute requirement for Mg2+. Only the alkaline earth cations Ca2+, Sr2+, and Ba2+, under appropriate conditions can substitute to some extent for M...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi9808971
更新日期:1998-11-03 00:00:00
abstract::A number of isomeric diacylglycerophosphocholines and diacylglycero sulfates containing O-acyl and/or S-acyl ester bonds were investigated as substrates for porcine pancreatic phospholipase A2 and its zymogen. A comparison is made with the kinetic properties of the enzyme toward the corresponding glycol detergents pre...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00348a023
更新日期:1985-12-31 00:00:00
abstract::Heme oxygenases convert heme to free iron, CO, and biliverdin. Saccharomyces cerevisiae and Candida albicans express putative heme oxygenases that are required for the acquisition of iron from heme, a critical process for fungal survival and virulence. The putative heme oxygenases Hmx1 and CaHmx1 from S. cerevisiae an...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi061429r
更新日期:2006-12-12 00:00:00
abstract::Pineapple stem bromelain was photooxidized in the presence of Methylene Blue used as a sensitizer. The essential sulfhydryl group of the enzyme protein rapidly became inaccessible to react with 5,5'-dithiobis(nitrobenzoic acid), but the reactivity was readily regained to the original level upon treatment with dithioth...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi00673a009
更新日期:1975-01-28 00:00:00
abstract::Ferredoxin I from Desulfovibrio africanus (Da FdI) is a small acidic [4Fe-4S] cluster protein that exchanges electrons with pyruvate-ferredoxin oxidoreductase (PFOR), a key enzyme in the energy metabolism of anaerobes. The thermodynamic properties and the electron transfer between PFOR and either native or mutated FdI...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi0485878
更新日期:2004-12-14 00:00:00
abstract::The RING or Really Interesting New Gene represents a family of eukaryotic sequences that bind Zn (II) ions and participate in intracellular processes involving protein-protein interaction. Although found in over 400 different proteins, very little is known regarding the structure-function properties of these domains b...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi701949p
更新日期:2008-03-25 00:00:00
abstract::A mechanism by which the Klenow fragment of DNA polymerase I monitors the geometry of the base pairs may involve hydrogen bonds between the polymerase and the minor groove of the nascent base pair. The involvement of the 3-position of guanine in the template strand was examined by synthesizing oligodeoxynucleotides co...
journal_title:Biochemistry
pub_type: 杂志文章
doi:10.1021/bi971253g
更新日期:1997-10-28 00:00:00