Results 301 to 310 of about 1,344,747 (350)
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Protein Circlets as Sex Pilus Subunits
Current Protein & Peptide Science, 2004The largest circular protein structures discovered define a class of transfer proteins acting in bacterial conjugation and type IV secretion. Proteins ranging from 73 to 78 residues with head-to-tail peptide bonds constitute the major subunit of conjugative pili of some type IV secretion systems.
Kalkum, M., Eisenbrandt, R., Lanka, E.
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Biochemical and Biophysical Research Communications, 1970
Abstract A method is described for studying spatially isolated subunits by attaching them covalently to a rigid matrix and thus preventing them from re-association. Application of this method to rabbit muscle aldolase indicates that the subunits are capable of enzyme activity.
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Abstract A method is described for studying spatially isolated subunits by attaching them covalently to a rigid matrix and thus preventing them from re-association. Application of this method to rabbit muscle aldolase indicates that the subunits are capable of enzyme activity.
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Protein Subunit-Subunit to Domain-Domain Interactions
2018Fusion proteins often referred to as “rosetta stone” occur through an important evolutionary phenomenon called gene fusion. This results in chimeric sequences in one species compared to its unfused individual component sequences in yet another species.
Pandjassarame Kangueane +1 more
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Annual Review of Pharmacology and Toxicology, 1997
▪ Abstract Guanine nucleotide binding (G) proteins relay extracellular signals encoded in light, small molecules, peptides, and proteins to activate or inhibit intracellular enzymes and ion channels. The larger G proteins, made up of Gαβγ heterotrimers, dissociate into Gα and Gβγ subunits that separately activate intracellular effector molecules ...
David E. Clapham, Eva J. Neer
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▪ Abstract Guanine nucleotide binding (G) proteins relay extracellular signals encoded in light, small molecules, peptides, and proteins to activate or inhibit intracellular enzymes and ion channels. The larger G proteins, made up of Gαβγ heterotrimers, dissociate into Gα and Gβγ subunits that separately activate intracellular effector molecules ...
David E. Clapham, Eva J. Neer
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Virology, 1967
Abstract When TMV protein, either dissociated subunits or reconstituted protein rods, is injected into rabbits, the amount of precipitating antibodies directed against the intact virus is 2–8 times smaller at the peak of synthesis than when similar amounts of TMV are injected.
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Abstract When TMV protein, either dissociated subunits or reconstituted protein rods, is injected into rabbits, the amount of precipitating antibodies directed against the intact virus is 2–8 times smaller at the peak of synthesis than when similar amounts of TMV are injected.
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Dissecting subunit interfaces in homodimeric proteins
Proteins: Structure, Function, and Bioinformatics, 2003AbstractThe subunit interfaces of 122 homodimers of known three‐dimensional structure are analyzed and dissected into sets of surface patches by clustering atoms at the interface; 70 interfaces are single‐patch, the others have up to six patches, often contributed by different structural domains.
Ranjit Prasad, Bahadur +3 more
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Interactions of protein kinase CK2 subunits
Molecular and Cellular Biochemistry, 1999Several approaches have been used to study the interactions of the subunits of protein kinase CK2. The inactive mutant of CK2alpha that has Asp 156 mutated to Ala (CK2alphaA156) is able to bind the CK2beta subunit and to compete effectively in this binding with wild-type subunits alpha and alpha'.
I, Korn +5 more
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2009
Protein dimers are common in catalysis and regulation. Their associations are either homodimers (identical monomers) or heterodimers (nonidentical monomers). The molecular principles of protein dimer interactions are difficult to understand mainly due to the geometrical and chemical characteristics of proteins.
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Protein dimers are common in catalysis and regulation. Their associations are either homodimers (identical monomers) or heterodimers (nonidentical monomers). The molecular principles of protein dimer interactions are difficult to understand mainly due to the geometrical and chemical characteristics of proteins.
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Platelet Microtubule Subunit Proteins
Thrombosis and Haemostasis, 1977Microtubule subunit proteins have been isolated and purified from pig platelet homogenates and reassembled in vitro to form structures similar to those seen in the intact platelet. The major subunit protein tubulin has many of the properties of neurotubulin; it is a 6S dimer protein which binds colchicine and can be split into two non-identical ...
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G protein subunits in lung cells
Life Sciences, 1994Many hormones and neurotransmitters bind to membrane-bound receptors that are coupled to signal generating enzymes or ion channels via signal transducing GTP-binding proteins termed G proteins. Although receptors and second messengers have been extensively studied in cells of the respiratory system, the G proteins responsible for the coupling of these ...
C W, Emala +3 more
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