Abstract:
:Two-dimensional nuclear Overhauser enhancement spectra are presented of the complex of lac repressor headpiece with a 14 base-pair lac operator fragment. Analysis of nuclear Overhauser enhancements observed between protein and DNA shows that the second helix of the headpiece ("the recognition helix") binds in the major groove of DNA as has been suggested, but that the orientation of this helix is approximately 180 degrees different from the proposed models.
journal_name
J Mol Bioljournal_title
Journal of molecular biologyauthors
Boelens R,Scheek RM,van Boom JH,Kaptein Rdoi
10.1016/0022-2836(87)90638-3subject
Has Abstractpub_date
1987-01-05 00:00:00pages
213-6issue
1eissn
0022-2836issn
1089-8638pii
0022-2836(87)90638-3journal_volume
193pub_type
杂志文章abstract::Recent experimental results suggest that the native fold, or topology, plays a primary role in determining the structure of the transition state ensemble, at least for small, fast-folding proteins. To investigate the extent of the topological control of the folding process, we studied the folding of simplified models ...
journal_title:Journal of molecular biology
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doi:10.1006/jmbi.2000.3693
更新日期:2000-05-19 00:00:00
abstract::The metazoan cell membrane is highly organized. Maintaining such organization and preserving membrane integrity under different conditions are accomplished through intracellular tethering to an extensive, flexible protein network. Spectrin, the principal component of this network, is attached to the membrane through t...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2012.01.041
更新日期:2012-04-06 00:00:00
abstract::The 69 nucleotide left-terminal domain (T(L)) of the potato spindle tuber RNA viroid (PSTVd) constitutes one of its five structural elements. Due to a twofold complementary sequence repeat, two possible conformations are proposed for the T(L) secondary structure; an elongated-rod and a bifurcated form. In the present ...
journal_title:Journal of molecular biology
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abstract::In bacterial transcription, diverse sigma-family promoter recognition proteins compete for a common RNA polymerase core. Bacteriophage T4 infection ultimately reduces this competition to a duel between activated viral middle and enhanced late transcription, involving two sigma proteins, two phage-encoded activator pro...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1999.2953
更新日期:1999-08-13 00:00:00
abstract::The nucleotide sequence was obtained for the hypE gene in the cluster of structural and accessory genes required for the assembly and functioning of the membrane-bound, dimeric, (NiFe)hydrogenase in Azotobacter vinelandii. The hypE gene encodes a polypeptide of 341 amino acid residues which is rich in alanine, glycine...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1994.1149
更新日期:1994-02-11 00:00:00
abstract::The type III secretion system (T3SS) is essential in the pathogenesis of Yersinia pestis, the causative agent of plague. A small protein, LcrG, functions as a chaperone to the tip protein LcrV, and the LcrG-LcrV interaction is important in regulating protein secretion through the T3SS. The atomic structure of the LcrG...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2015.07.024
更新日期:2015-09-25 00:00:00
abstract::Type I DNA methyltransferases are complex multisubunit enzymes that methylate a specific base in each half of an asymmetric bipartite DNA recognition sequence. The specificity (S) subunit contains two corresponding DNA sequence recognition domains, plus a number of conserved regions which interact with two modificatio...
journal_title:Journal of molecular biology
pub_type: 杂志文章,评审
doi:10.1006/jmbi.1994.1624
更新日期:1994-10-14 00:00:00
abstract::Viral scaffolding proteins direct polymerization of major capsid protein subunits into icosahedral procapsid structures. The scaffolding protein of bacteriophage SPP1 was engineered with a C-terminal hexahistidine tag (gp11-His(6)) and purified. The protein is an alpha-helical-rich molecule with a very elongated shape...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2008.02.028
更新日期:2008-05-02 00:00:00
abstract::The three-dimensional structures of double and single-shelled simian rotavirus have been determined to a resolution of 40 A by image processing electron micrographs of unstained, unfixed virus particles embedded in vitreous ice. This study demonstrates that the icosahedral surface lattices in these structures have a t...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/0022-2836(88)90313-0
更新日期:1988-01-20 00:00:00
abstract::Previously we have shown that nuclear extracts from mouse cells contain a heterogeneous group of polypeptides (p65, p80, p90, p100) which form distinct DNA-protein complexes on the 18 base-pair sequence element (termed Sal-box), which constitutes the murine rDNA transcription termination signal. These distinct protein...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/0022-2836(92)90213-4
更新日期:1992-10-05 00:00:00
abstract::Bacteriophage T4 provides an important model for the biochemistry and genetics of DNA metabolism. Phage-encoded proteins conduct all essential steps of T4 DNA replication, repair, and recombination. Central to these three processes is the T4 UvsX protein, a member of the filamentous, ATP-dependent class of general rec...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1998.2124
更新日期:1998-11-06 00:00:00
abstract::RNase MRP is a ribonucleoprotein endoribonuclease involved in eukaryotic pre-rRNA processing. The enzyme possesses a putatively catalytic RNA subunit, structurally related to that of RNase P. A thorough structure analysis of Saccharomyces cerevisiae MRP RNA, entailing enzymatic and chemical probing, mutagenesis and th...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2004.05.076
更新日期:2004-08-06 00:00:00
abstract::NMR spectroscopy has been used to follow the urea-induced unfolding of the low pH molten globule states of a single-disulfide variant of human alpha-lactalbumin ([28-111] alpha-LA) and of two mutants, each with a single proline substitution in a helix. [28-111] alpha-LA forms a molten globule very similar to that form...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2004.02.045
更新日期:2004-04-16 00:00:00
abstract::To investigate the relationships between protein topology, amino acid sequence and folding mechanisms, the folding transition state of the Sso7d protein has been characterised both experimentally and theoretically. Although Sso7d protein has a similar topology to that of the SH3 domains, the structure of its transitio...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.2000.4234
更新日期:2000-12-15 00:00:00
abstract::A bank of 13,563 loops from three to eight amino acid residues long, representing motifs between two consecutive regular secondary structures, has been derived from protein structures presenting less than 95 % sequence identity. Statistical analyses of occurrences of conformations and residues revealed length-dependen...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1999.2826
更新日期:1999-06-25 00:00:00
abstract::The role of an 18-residue ion-pair network, that is present in the glutamate dehydrogenase from the hyperthermophilic archaeon Pyrococcus furiosus, in conferring stability to other, less stable homologous enzymes, has been studied by introducing four new charged amino acid residues into the subunit interface of glutam...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1999.2779
更新日期:1999-06-04 00:00:00
abstract::Catalytic and other functionally important residues in proteins can often be mutated to yield more stable proteins. Many of these residues are charged residues that are located in electrostatically unfavorable environments. Here it is demonstrated that because continuum electrostatics methods can identify these destab...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.2001.5009
更新日期:2001-09-28 00:00:00
abstract::The multi-domain serine protease C2 provides the catalytic activity for the C3 and C5- convertases of the classical and lectin pathways of complement activation. Formation of these convertases requires the Mg(2+)-dependent binding of C2 to C4b, and the subsequent cleavage of C2 by C1s or MASP2, respectively. The C-ter...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2006.12.039
更新日期:2007-03-16 00:00:00
abstract::Hsp16.3, a small heat shock protein from Mycobacterium tuberculosis proposed to form specific trimer-of-trimers structures, acts as a molecular chaperone in vitro. The assembly and re-assembly mechanisms of this oligomeric protein were studied and compared using in vitro transcription/translation and denaturization/re...
journal_title:Journal of molecular biology
pub_type: 杂志文章
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abstract::Staphylococcus aureus A70 produces a heat-stable bacteriocin designated aureocin A70. Aureocin A70 is encoded within a mobilisable 8 kb plasmid, pRJ6, and is active against Listeria monocytogenes. Experiments of transposition mutagenesis and gene cloning had shown that aureocin A70 production and immunity were associa...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.2001.4885
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abstract::Crystal structures of Bacillus stearothermophilus TRS40 neopullulanase and its complexes with panose, maltotetraose and isopanose were determined at resolutions of 1.9, 2.4, 2.8 and 3.2A, respectively. Since the latter two carbohydrates are substrates of this enzyme, a deactivated mutant at the catalytic residue Glu35...
journal_title:Journal of molecular biology
pub_type: 杂志文章
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journal_title:Journal of molecular biology
pub_type: 杂志文章
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更新日期:2005-07-08 00:00:00
abstract::The morphogene bolA is a general stress response gene in Escherichia coli that induces a round morphology when overexpressed. Results presented in this report show that increased BolA levels can inhibit cell elongation mechanisms. MreB polymerization is crucial for the bacterial cell cytoskeleton, and this protein is ...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2008.12.026
更新日期:2009-02-06 00:00:00
abstract::A specific complex of 5 S rRNA and several ribosomal proteins is an integral part of ribosomes in all living organisms. Here we studied the importance of Escherichia coli genes rplE, rplR and rplY, encoding 5 S rRNA-binding ribosomal proteins L5, L18 and L25, respectively, for cell growth, viability and translation. U...
journal_title:Journal of molecular biology
pub_type: 杂志文章
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更新日期:2007-03-02 00:00:00
abstract::Polycystin-1 is a large membrane-associated protein that interacts with polycystin-2 in the primary cilia of renal epithelial cells to form a mechanosensitive ion channel. Bending of the cilia induces calcium flow into the cells, mediated by the polycystin complex. Antibodies to polycystin-1 and polycystin-2 abolish t...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2005.04.008
更新日期:2005-06-17 00:00:00
abstract::Two crystal habits, one rod shaped and the other square prismatic, of the Fab fragment of a monoclonal anti-phenylalanine hydroxylase antibody have been grown using the method of vapour phase diffusion against polyethylene glycol 6000. The square prisms diffract to better than 2.8 A, belong to the space group P1 and h...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/0022-2836(85)90121-4
更新日期:1985-11-20 00:00:00
abstract::Bleomycin (Bm)-binding protein, designated BLMA, which is a Bm resistance determinant from Bm-producing Streptomyces verticillus, was crystallized in a form suitable for X-ray diffraction analysis. The diffraction intensity data were collected up to a resolution of 1.5 A with a merging R-value of 0.054 at a completene...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1999.3404
更新日期:2000-01-28 00:00:00
abstract::Cytochrome c oxidase couples the reduction of dioxygen to proton pumping against an electrochemical gradient. The D-channel, a 25-A-long cavity, provides the principal pathway for the uptake of chemical and pumped protons. A water chain is thought to mediate the relay of protons via a Grotthuss mechanism through the D...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2009.02.042
更新日期:2009-04-17 00:00:00
abstract::The binding stoichiometry of kinesin to microtubules was determined using several biochemical and biophysical approaches (chemical crosslinking, binding assays, scanning transmission electron microscopy (STEM), image reconstruction, and X-ray scattering). The results show that each tubulin dimer associates with one ki...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1997.1503
更新日期:1998-02-06 00:00:00
abstract::Foot-and-mouth disease virus (FMDV), a non-enveloped picornavirus, is sensitive to acidic conditions. At pH values below 7 the icosahedral virus capsid, formed from 60 copies of a protomer containing four polypeptides (VP1 to 4), dissociates into 12 pentamers, releasing the viral RNA. Evidence suggests that this acid ...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1997.1418
更新日期:1998-01-16 00:00:00