Results 71 to 80 of about 85,555 (244)

Monomeric PcrA helicase processively unwinds plasmid lengths of DNA in the presence of the initiator protein RepD [PDF]

open access: yes, 2013
The helicase PcrA unwinds DNA during asymmetric replication of plasmids, acting with an initiator protein, in our case RepD. Detailed kinetics of PcrA activity were measured using bulk solution and a single-molecule imaging technique to investigate the ...
Arbore   +54 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

open access: yesFEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Location of the free thiol group in bovine [beta]-lactoglobulin A, B, and C : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Biochemistry at Massey University [PDF]

open access: yes, 1997
Under non-reducing sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) conditions unheated samples of β-lactoglobulin (β-LG) A, B and C all run as a single band, the A variant having a slightly lower mobility than the B and C variants ...
Brittan, Helen
core  

Structure and kinetics of chemically cross-linked protein gels from small-angle X-ray scattering

open access: yes, 2014
Glutaraldehyde (GA) reacts with amino groups in proteins, forming intermolecular cross-links that, at sufficiently high protein concentration, can transform a protein solution into a gel.
Halle, Bertil   +2 more
core   +1 more source

PNA-induced assembly of fluorescent proteins using DNA as a framework [PDF]

open access: yes, 2013
Controlled alignment of proteins on molecular frameworks requires the development of facile and orthogonal chemical approaches and molecular scaffolds. In this work, protein−PNA conjugates are brought forward as new chemical components allowing efficient
Brunsweld, L, Gholami, Z, Hanley, Q
core   +2 more sources

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

open access: yesMolecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos   +6 more
wiley   +1 more source

How C-Reactive Protein Structural Isoforms With Distinctive Bioactivities Affect Disease Progression

open access: yesFrontiers in Immunology, 2020
C-reactive protein (CRP) is a widely known, hepatically synthesized protein whose blood levels change rapidly and pronouncedly in response to any tissue damaging event associated with an inflammatory response.
Ibraheem M. Rajab   +2 more
doaj   +1 more source

Automated design of protein-binding riboswitches for sensing human biomarkers in a cell-free expression system

open access: yesNature Communications, 2023
Cell-free genetically encoded biosensors have been developed to detect small molecules and nucleic acids, but they have yet to be reliably engineered to detect proteins.
Grace E. Vezeau   +2 more
doaj   +1 more source

Evidence for somatic selection of natural autoantibodies. [PDF]

open access: yes, 1992
Natural autoantibodies are primarily immunoglobulin M (IgM) antibodies that bind to a variety of self-antigens, including self-IgG. Accounting for a large proportion of the early B cell repertoire, such polyspecific autoantibodies are speculated to ...
Carson, DA   +3 more
core  

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