Results 41 to 50 of about 574,974 (306)

The Bacillus subtilis signaling protein SpoIVB defines a new family of serine peptidases [PDF]

open access: yes, 2002
The protein SpoIVB plays a key role in signaling in the sigma (K) checkpoint of Bacillus subtilis. This regulatory mechanism coordinates late gene expression during development in this organism and we have recently shown SpoIVB to be a serine peptidase ...
Brannigan, J A, Cutting, S M, Hoa, N T
core   +2 more sources

A Catalytic Domain of Eukaryotic DNA Topoisomerase I [PDF]

open access: yesJournal of Biological Chemistry, 1998
Eukaryotic type IB topoisomerases catalyze the cleavage and rejoining of DNA strands through a DNA-(3'-phosphotyrosyl)-enzyme intermediate. The 314-amino acid vaccinia topoisomerase is the smallest member of this family and is distinguished from its cellular counterparts by its specificity for cleavage at the target sequence 5'-CCCTT downward arrow ...
C, Cheng, S, Shuman
openaire   +2 more sources

Chitinase Chit62J4 Essential for Chitin Processing by Human Microbiome Bacterium Clostridium paraputrificum J4

open access: yesMolecules, 2021
Commensal bacterium Clostridium paraputrificum J4 produces several extracellular chitinolytic enzymes including a 62 kDa chitinase Chit62J4 active toward 4-nitrophenyl N,N′-diacetyl-β-d-chitobioside (pNGG).
Jan Dohnálek   +7 more
doaj   +1 more source

Mutational analysis of a ras catalytic domain. [PDF]

open access: yesMolecular and Cellular Biology, 1986
We used linker insertion-deletion mutagenesis to study the catalytic domain of the Harvey murine sarcoma virus v-rasH transforming protein, which is closely related to the cellular rasH protein. The mutants displayed a wide range of in vitro biological activity, from those that induced focal transformation of NIH 3T3 cells with approximately the same ...
Willumsen, B M   +7 more
openaire   +2 more sources

Biochemical and structural analysis of a site directed mutant of manganese dependent aminopeptidase P from Streptomyces lavendulae [PDF]

open access: yesJournal of BioScience and Biotechnology, 2015
Aminopeptidase P (APP) removes N-terminal amino acids from peptides and proteins when the penultimate residue is proline. To understand the structure-function relationships of aminopeptidase P of Streptomyces lavendulae, a conserved arginine residue was ...
ARYA NANDAN, KESAVAN M. NAMPOOTHIRI
doaj  

Structural determinants of APOBEC3B non-catalytic domain for molecular assembly and catalytic regulation [PDF]

open access: yesNucleic Acids Research, 2017
The catalytic activity of human cytidine deaminase APOBEC3B (A3B) has been correlated with kataegic mutational patterns within multiple cancer types. The molecular basis of how the N-terminal non-catalytic CD1 regulates the catalytic activity and consequently, biological function of A3B remains relatively unknown.
Xiao, Xiao   +7 more
openaire   +4 more sources

Polyhydroxyalkanoate synthase (PhaC): The key enzyme for biopolyester synthesis

open access: yesCurrent Research in Biotechnology, 2022
Polyhydroxyalkanoates (PHAs) are considered good candidates in replacing commercial petrochemical plastics in certain applications like single-use packaging since they are biodegradable, biocompatible and share similar properties with conventional ...
Soon Zher Neoh   +6 more
doaj   +1 more source

Autoantibodies against the catalytic domain of BRAF are not specific serum markers for rheumatoid arthritis. [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: Autoantibodies to the catalytic domain of v-raf murine sarcoma viral oncogene homologue B1 (BRAF) have been recently identified as a new family of autoantibodies involved in rheumatoid arthritis (RA).
Wenli Li   +8 more
doaj   +1 more source

The many-faced KSR1: a tumor suppressor in breast cancer [PDF]

open access: yes, 2015
Emerging evidence supports the dual function of kinase suppressor of Ras 1 (KSR1) as an active kinase and a scaffold, although it has been extensively referred as a pseudokinase, due to the absence of key residues in its catalytic domain [1, 2].
Giamas, Georgios   +2 more
core   +2 more sources

Template-Directed Self-Assembly Enhances RTK Catalytic Domain Function [PDF]

open access: yesSLAS Discovery, 2008
Receptor tyrosine kinases have become important therapeutic targets because of their involvement in diseases, including cancer. Kinase domains, which are soluble and easily purified, have found widespread use in enzyme inhibitor assays, but these domains do not exhibit full function because they are isolated from the membrane.
Esposito, EA, Shrout, AL, Weis, RM
openaire   +2 more sources

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