Abstract:
:Grafting the antigen-binding loops onto a human antibody scaffold is a widely used technique to humanise murine antibodies. The success of this approach depends largely on the observation that the antigen-binding loops adopt only a limited number of canonical structures. Identification of the correct canonical structure is therefore essential. Algorithms that predict the main-chain conformation of the hypervariable loops using only the amino acid sequence often provide this information. Here, we describe new canonical loop conformations for the hypervariable regions H1 and H2 as found in single-domain antibody fragments of dromedaries or llama. Although the occurrence of these new loop conformations was not predicted by the algorithms used, it seems that they could occur in human or mouse antigen-binding loops. Their discovery indicates that the currently used set of canonical structures is incomplete and that the prediction algorithms should be extended to include these new structures.
journal_name
J Mol Bioljournal_title
Journal of molecular biologyauthors
Decanniere K,Muyldermans S,Wyns Ldoi
10.1006/jmbi.2000.3839keywords:
subject
Has Abstractpub_date
2000-06-30 00:00:00pages
83-91issue
1eissn
0022-2836issn
1089-8638pii
S0022-2836(00)93839-7journal_volume
300pub_type
杂志文章abstract::HtrA (high-temperature requirement A) family proteins play important roles in protein-quality control processes in the bacterial periplasm. A common feature of all members of this family is their modular organization comprising a chymotrypsin-like protease domain and at least one PDZ (postsynaptic density of 95 kDa, d...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2015.06.023
更新日期:2015-08-28 00:00:00
abstract::Membrane proteins are unique, in that they can function properly only when they are bound to cellular membranes in a distinct manner. Therefore, positioning of membrane proteins with respect to the membrane is required in addition to the three-dimensional structures in order to understand their detailed molecular mech...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2005.06.080
更新日期:2005-09-02 00:00:00
abstract::Switching between the active (ATP and DNA bound) and inactive conformations of the homologous recombination RecA protein is regulated by ATP hydrolysis. First, we use the homologous pairing domain of RecA derived from its mobile loop L2 to show that the interaction of this random coil peptide with the gamma-phosphate ...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.2000.4163
更新日期:2000-11-10 00:00:00
abstract::We describe a hidden Markov model, HMMSTR, for general protein sequence based on the I-sites library of sequence-structure motifs. Unlike the linear hidden Markov models used to model individual protein families, HMMSTR has a highly branched topology and captures recurrent local features of protein sequences and struc...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.2000.3837
更新日期:2000-08-04 00:00:00
abstract::We demonstrate here that the Saccharomyces cerevisiae Mlh1-Pms1 heterodimer required for DNA mismatch repair and other cellular processes is a DNA binding protein. Binding was evaluated using a variety of single and double-stranded DNA molecules. Mlh1-Pms1 bound short substrates with low affinity and showed a slight p...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.2001.4958
更新日期:2001-09-28 00:00:00
abstract::We have developed a new method for the prediction of peptide sequences that bind to a protein, given a three-dimensional structure of the protein in complex with a peptide. By applying a recently developed sequence prediction algorithm and a novel ensemble averaging calculation, we generate a diverse collection of pep...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.2001.5035
更新日期:2001-10-19 00:00:00
abstract::The functional consequences of DNA condensation are investigated. The recognition of complementary strands is profoundly modified by this critical phenomenon. (1) Condensation of denatured DNA greatly accelerates the kinetics of DNA renaturation. We propose a unifying explanation for the effects of several acceleratin...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/0022-2836(91)90595-w
更新日期:1991-12-20 00:00:00
abstract::In order to investigate the modes of DNA synthesis supported by the 66 and 51 kDa subunits of equine infectious anemia virus reverse transcriptase (EIAV RT), recombinant p66 polypeptides containing a modified ribonuclease H (RNase H) domain were purified and evaluated. Defined heteropolymeric template-primer combinati...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1996.0181
更新日期:1996-04-05 00:00:00
abstract::The three-dimensional structure of cytochrome-c552 from Thermus thermophilus has been determined by the multiple anomalous dispersion technique using synchrotron radiation and refined to a resolution of 1.28 A. Data collection at 90 K and the recording of three data sets (f'-minimum: 7125 eV, f"-maximum: 7138 eV and r...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1997.1181
更新日期:1997-08-29 00:00:00
abstract::The 3' terminus of the (-) RNA strand in the replicative forms of several (+)-stranded RNA viruses possesses an unpaired guanosine with unknown function. This unpaired guanosine is also found at the 3' terminus of the (-) strand in the double-stranded form of two cucumoviral satellite RNAs. Using a cucumber mosaic vir...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1994.1326
更新日期:1994-05-20 00:00:00
abstract::The cap-binding protein eIF4E is the first in a chain of translation initiation factors that recruit 40S ribosomal subunits to the 5' end of eukaryotic mRNA. During cap-dependent translation, this protein binds to the 5'-terminal m(7)Gppp cap of the mRNA, as well as to the adaptor protein eIF4G. The latter then intera...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2005.12.034
更新日期:2006-03-03 00:00:00
abstract::The steps of UUC recognition by tRNAPhe were analysed by temperature-jump measurements. At ion concentrations close to physiological conditions we found three relaxation processes, which we assigned to (1) formation of codon-anticodon complexes, (2) a conformational change of the anticodon loop coupled with Mg2+ bindi...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/0022-2836(84)90085-8
更新日期:1984-04-25 00:00:00
abstract::Binary complexes between messenger RNA and E. coli ribosomes were examined. A ribosome-mRNA binary complex on T4 gene 32 mRNA withstood inhibition by antibodies against ribosomal protein S1. Anti-S1 blocks ternary complex formation, as measured by "extension inhibition" or "toeprinting" analysis, only when preincubate...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/0022-2836(91)90876-8
更新日期:1991-03-05 00:00:00
abstract::Induction of gene expression has great potential in the treatment of many human diseases. Peptide nucleic acid (PNA) as a novel DNA-binding reagent provides an ideal system to induce gene-specific expression. In our recent studies, we have demonstrated that PNA bound to double-stranded DNA targets and, therefore, gene...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.2001.5109
更新日期:2001-11-09 00:00:00
abstract::Many proteins are composed of independently-folded domains connected by flexible linkers. The primary sequence and length of such linkers can set the effective concentration for the tethered domains, which impacts rates of association and enzyme activity. The length of such linkers can be sensitive to environmental co...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2020.166793
更新日期:2021-01-01 00:00:00
abstract::A comprehensive understanding of host-pathogen interactions requires quantitative assessment of molecular events across a wide range of spatiotemporal scales and organizational complexities. Due to recent technical developments, this is currently only achievable with microscopy. This article is providing a general per...
journal_title:Journal of molecular biology
pub_type: 杂志文章,评审
doi:10.1016/j.jmb.2018.06.018
更新日期:2018-08-17 00:00:00
abstract::Forkhead box O4 (FOXO4) is a human transcription factor (TF) that participates in cell homeostasis. While the structure and DNA binding properties of the conserved forkhead domain (FHD) have been thoroughly investigated, how the transactivation domain (TAD) regulates the DNA binding properties of the protein remains e...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2021.166808
更新日期:2021-01-13 00:00:00
abstract::Voltage-dependent H(+) (Hv) channels mediate proton conduction into and out of cells under the control of membrane voltage. Hv channels are unusual compared to voltage-dependent K(+), Na(+), and Ca(2+) channels in that Hv channel genes encode a voltage sensor domain (VSD) without a pore domain. The H(+) currents obser...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2009.02.034
更新日期:2009-04-17 00:00:00
abstract::Protein interactions play a crucial role among the different functions of a cell and are central to our understanding of cellular processes both in health and disease. Here we present Galaxy InteractoMIX (http://galaxy.interactomix.com), a platform composed of 13 different computational tools each addressing specific ...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2020.09.015
更新日期:2020-09-23 00:00:00
abstract::The structure of protein L9 from the Bacillus stearothernophilus ribosome has been determined at 2.5 A resolution by refinement against single crystal X-ray diffraction data with additional constraints provided by NMR data. This highly elongated protein consists of two domains separated by a nine-turn connecting helix...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1996.0696
更新日期:1996-12-20 00:00:00
abstract::During general genetic recombination and recombinational DNA repair, DNA damages and heterologies are often encountered which must be efficiently processed by the cellular recombination machinery. In RecA-mediated three-strand exchange reactions between single-stranded circular and linear duplex DNA, or four-strand ex...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1996.0600
更新日期:1996-11-08 00:00:00
abstract::In Saccharomyces cerevisiae, the SIF2 gene product is an integral component of the Set3 complex (SET3C), an assembly of proteins with some homology to the human SMRT and N-CoR corepressor complexes. SET3C has histone deacetylase activity that is responsible for repressing a set of meiotic genes. We have determined the...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2005.06.025
更新日期:2005-08-26 00:00:00
abstract::The short consensus repeat domain (SCR, complement control protein module, sushi-domain) is a structural unit found in multiple adjacent copies in more than 40 human proteins. Each bead-like domain is composed of approximately 60 residues and the adjacent domains are connected in a head-to-tail fashion with linkers th...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2004.10.017
更新日期:2004-12-10 00:00:00
abstract::Transcription in all cellular organisms is performed by multisubunit, DNA-dependent RNA polymerases that synthesize RNA from DNA templates. Previous sequence and structural studies have elucidated the importance of shared regions common to all multisubunit RNA polymerases. In addition, RNA polymerases contain multiple...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2009.10.062
更新日期:2010-01-29 00:00:00
abstract::We have solved the crystal structure of the acyl carrier protein synthase (AcpS) from Mycobacterium tuberculosis (Mtb) at 1.95 A resolution. AcpS, a 4-phosphopantetheinyl transferase, activates two distinct acyl carrier proteins (ACPs) that are present in fatty acid synthase (FAS) systems FAS-I and FAS-II, the ACP-I d...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2009.08.065
更新日期:2009-11-06 00:00:00
abstract::Structural database-derived propensities for amino acids to adopt particular local protein structures, such as alpha-helix and beta-strand, have long been recognized and effectively exploited for the prediction of protein secondary structure. However, the experimental verification of database-derived propensities usin...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2007.07.059
更新日期:2007-10-26 00:00:00
abstract::Three conserved motifs (named A, B and C) have been proposed to form the polymerization active site in all classes of DNA-dependent polymerases. In eukaryotic-type (alpha-like) DNA polymerases, motif A is characterized by the consensus "Dx2SLYP". Mutants in phi29 DNA polymerase residue Tyr254 of this conserved motif h...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1006/jmbi.1999.2900
更新日期:1999-07-02 00:00:00
abstract::The filamentous fungus Neurospora crassa has a branched respiratory chain. Several alternative dehydrogenases, aside from the canonical complex I enzyme, are involved in the oxidation of NAD(P)H substrates. Based on homology searches in the fungal genome, we have tentatively identified one of these proteins. The corre...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2007.02.080
更新日期:2007-05-11 00:00:00
abstract::Three crystal forms of canine myeloperoxidase are described. An orthorhombic form in space group P2(1)2(1)2(1) has unit cell dimensions: a = 108.3 A (1 A = 0.1 nm) b = 205.9 A and c = 139.9 A. A trigonal form in space group P3(1)21 or P3(2)21 has unit cell dimensions: a = b = 138.9 A and c = 145.2 A. A monoclinic form...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/0022-2836(87)90413-x
更新日期:1987-08-20 00:00:00
abstract::The human signal recognition particle (SRP) is a large RNA-protein complex that targets secretory and membrane proteins to the endoplasmic reticulum membrane. The S domain of SRP is composed of roughly half of the 7SL RNA and four proteins (SRP19, SRP54, and the SRP68/72 heterodimer). In order to understand how the bi...
journal_title:Journal of molecular biology
pub_type: 杂志文章
doi:10.1016/j.jmb.2006.12.056
更新日期:2007-03-16 00:00:00