FUNCTIONAL DOMAIN CONCEPTS IN THE MODELLING OF CLOUD STRUCTURES AND THE BEHAVIOUR OF INTEGRATED POLICY-BASED SYSTEMS THROUGH THE USE OF ABSTRACTION CLASSES

2011 ◽  
Keyword(s):  
Functional Domain ◽  
Integrated Policy

scholarly journals Substrate Spectrum Extension of PenA in Burkholderia thailandensis with a Single Amino Acid Deletion, Glu168del

2012 ◽  
Vol 56 (7) ◽  
pp. 4005-4008 ◽  
Author(s):  
Hyojeong Yi ◽  
Karan Kim ◽  
Kwang-Hwi Cho ◽  
Oksung Jung ◽  
Heenam Stanley Kim
Keyword(s):  
Deletion Mutation ◽  
Single Amino Acid ◽  
Functional Domain ◽  
Amino Acid Deletion ◽  
Burkholderia Thailandensis ◽  
Content Type ◽  
Class A ◽  
Omega Loop ◽  
Substitution Mutations ◽  
Substrate Spectrum

ABSTRACTWe describe a deletion mutation in a class A β-lactamase, PenA, ofBurkholderia thailandensisthat extended the substrate spectrum of the enzyme to include ceftazidime. Glu168del was located in a functional domain called the omega loop causing expansion of the space in the loop, which in turn increased flexibility at the active site. This deletion mutation represents a rare but significant alternative mechanical path to substrate spectrum extension in PenA besides more common substitution mutations.

scholarly journals Predictors of Caregiver Burden in Delirium: Patient and Caregiver Factors

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 254-255
Author(s):  
Patricia Tabloski ◽  
Franchesca Arias ◽  
Nina Flanagan ◽  
Tamara Fong ◽  
Eva Schmitt ◽  
...  
Keyword(s):  
Caregiver Burden ◽  
Living Arrangements ◽  
Living Arrangement ◽  
Patient Characteristics ◽  
Confusion Assessment Method ◽  
Assessment Method ◽  
Functional Domain ◽  
Medical Patients ◽  
Patient Factors ◽  
Caregiver Relationship

Abstract Delirium — an acute disorder of attention and cognition — is a common, life-threatening and costly syndrome occurring frequently in older hospitalized persons. The unexpected, rapid, and volatile nature of delirium can be difficult for family caregivers to experience and may contribute to subjective feelings of distress (i.e. “delirium burden”). The aim of this study was to examine whether pre-admission patient characteristics or patient-caregiver relationship and living arrangements were associated with caregiver burden as measured by the delirium burden scale for caregivers (DEL-B-C; score 0-40, higher score is more burden). Our sample consisted of 208 older adults and their caregivers from the Better Assessment of Illness (BASIL) study, an ongoing prospective, observational study of surgical and medical patients ≥70 years old; 22% of patients experienced delirium by the Confusion Assessment Method (CAM) and the average DEL-B-C score was 7.9, 95% CI(6.95-8.88). Results indicated that neither patient-caregiver relationship and living arrangement or patient factors including pre-admission pain, sleep disturbance, or new onset incontinence were significantly correlated with delirium-related caregiver burden. However, DEL-B-C scores were significantly higher in caregivers of patients with any ADL impairment (mean 8.5 vs. 5.2, p = .016) during hospitalization although none of the individual functional deficits alone were statistically significant. This finding suggests that the association of ADL impairment and DEL-B-C scores is not driven by a single functional domain. Future studies are needed to further understand how caregiver characteristics and patient factors occurring before and during hospitalization contribute to caregiver burden after the occurrence of delirium.

scholarly journals Identification of Susceptibility Genes in Castanea sativa and Their Transcription Dynamics following Pathogen Infection

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 913
Author(s):  
Vera Pavese ◽  
Andrea Moglia ◽  
Paolo Gonthier ◽  
Daniela Torello Marinoni ◽  
Emile Cavalet-Giorsa ◽  
...  
Keyword(s):  
Phylogenetic Analyses ◽  
Castanea Sativa ◽  
Transcript Level ◽  
Cryphonectria Parasitica ◽  
Plant Responses ◽  
Functional Domain ◽  
Loss Of Function ◽  
Pathogen Infection ◽  
Domain Identification ◽  
S Genes

Castanea sativa is one of the main multipurpose tree species valued for its timber and nuts. This species is susceptible to two major diseases, ink disease and chestnut blight, caused by Phytophthora spp. and Cryphonectria parasitica, respectively. The loss-of-function mutations of genes required for the onset of pathogenesis, referred to as plant susceptibility (S) genes, are one mechanism of plant resistance against pathogens. On the basis of sequence homology, functional domain identification, and phylogenetic analyses, we report for the first time on the identification of S-genes (mlo1, dmr6, dnd1, and pmr4) in the Castanea genus. The expression dynamics of S-genes were assessed in C. sativa and C. crenata plants inoculated with P. cinnamomi and C. parasitica. Our results highlighted the upregulation of pmr4 and dmr6 in response to pathogen infection. Pmr4 was strongly expressed at early infection phases of both pathogens in C. sativa, whereas in C. crenata, no significant upregulation was observed. The infection of P. cinnamomi led to a higher increase in the transcript level of dmr6 in C. sativa compared to C. crenata-infected samples. For a better understanding of plant responses, the transcript levels of defense genes gluB and chi3 were also analyzed.

scholarly journals Signatures of conserved and unique molecular features in Afrotheria

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Arangasamy Yazhini ◽  
Narayanaswamy Srinivasan ◽  
Sankaran Sandhya
Keyword(s):  
Ribosomal Proteins ◽  
Individual Species ◽  
Functional Domain ◽  
Nucleic Acid Binding ◽  
Uncharacterized Protein ◽  
Homologous Proteins ◽  
Functional Roles ◽  
Molecular Features ◽  
Specific Proteins ◽  
Species Specific

AbstractAfrotheria is a clade of African-origin species with striking dissimilarities in appearance and habitat. In this study, we compared whole proteome sequences of six Afrotherian species to obtain a broad viewpoint of their underlying molecular make-up, to recognize potentially unique proteomic signatures. We find that 62% of the proteomes studied here, predominantly involved in metabolism, are orthologous, while the number of homologous proteins between individual species is as high as 99.5%. Further, we find that among Afrotheria, L. africana has several orphan proteins with 112 proteins showing < 30% sequence identity with their homologues. Rigorous sequence searches and complementary approaches were employed to annotate 156 uncharacterized protein sequences and 28 species-specific proteins. For 122 proteins we predicted potential functional roles, 43 of which we associated with protein- and nucleic-acid binding roles. Further, we analysed domain content and variations in their combinations within Afrotheria and identified 141 unique functional domain architectures, highlighting proteins with potential for specialized functions. Finally, we discuss the potential relevance of highly represented protein families such as MAGE-B2, olfactory receptor and ribosomal proteins in L. africana and E. edwardii, respectively. Taken together, our study reports the first comparative study of the Afrotherian proteomes and highlights salient molecular features.

Identification of a Functional Domain Within the Essential Core of Histone H3 That Is Required for Telomeric and HM Silencing in Saccharomyces cerevisiae

Genetics ◽  
2003 ◽  
Vol 163 (1) ◽  
pp. 447-452 ◽  
Author(s):  
Jeffrey S Thompson ◽  
Marilyn L Snow ◽  
Summer Giles ◽  
Leslie E McPherson ◽  
Michael Grunstein
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Amino Acid ◽  
Amino Acid Substitution ◽  
Histone H3 ◽  
Single Amino Acid ◽  
Functional Domain ◽  
Partial Loss ◽  
Histone Fold ◽  
Gal1 Promoter ◽  
Substitution Mutations

Abstract Fourteen novel single-amino-acid substitution mutations in histone H3 that disrupt telomeric silencing in Saccharomyces cerevisiae were identified, 10 of which are clustered within the α1 helix and L1 loop of the essential histone fold. Several of these mutations cause derepression of silent mating locus HML, and an additional subset cause partial loss of basal repression at the GAL1 promoter. Our results identify a new domain within the essential core of histone H3 that is required for heterochromatin-mediated silencing.

scholarly journals Domains for protein-protein interactions at the N and C termini of the large subunit of bacteriophage lambda terminase.

Genetics ◽  
1988 ◽  
Vol 119 (3) ◽  
pp. 477-484
Author(s):  
W F Wu ◽  
S Christiansen ◽  
M Feiss
Keyword(s):  
Protein Interactions ◽  
Ternary Complex ◽  
Large Subunit ◽  
Small Subunit ◽  
Functional Domain ◽  
Binary Complex ◽  
Protein Protein Interactions ◽  
Related Phage ◽  
Carboxy Terminal ◽  
Lambda Dna

Abstract The large subunit of phage lambda terminase, gpA, the gene product of the phage A gene, interacts with the small subunit, gpNul, to form functional terminase. Terminase binds to lambda DNA at cosB to form a binary complex. The terminase:DNA complex binds a prohead to form a ternary complex. Ternary complex formation involves an interaction of the prohead with gpA. The amino terminus of gpA contains a functional domain for interaction with gpNul, and the carboxy-terminal 38 amino acids of gpA contain a functional domain for prohead binding. This information about the structure of gpA was obtained through the use of hybrid phages resulting from recombination between lambda and the related phage 21. lambda and 21 encode terminases that are analogous in structural organization and have ca. 60% sequence identity. In spite of these similarities, lambda and 21 terminases differ in specificity for DNA binding, subunit assembly, and prohead binding. A lambda-21 hybrid phage produces a terminase in which one of the subunits is chimeric and had recombinant specificities. In the work reported here; a new hybrid, lambda-21 hybrid 67, is characterized. lambda-21 hybrid 67 is the result of a crossover between lambda and 21 in the large subunit genes, such that the DNA from the left chromosome end is from 21, including cosB phi 21, the 1 gene, and the first 48 codons for the 2 gene. The rest of the hybrid 67 chromosome is lambda DNA, including 593 codons of the A gene. The chimeric gp2/A of hybrid 67 binds gp1 to form functional terminase.(ABSTRACT TRUNCATED AT 250 WORDS)

scholarly journals Antifreeze protein from Ammopiptanthus nanus functions in temperature-stress through domain A

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
HaoQiang Yu ◽  
HongYing Zheng ◽  
Yuan Liu ◽  
QingQing Yang ◽  
WanChen Li ◽  
...  
Keyword(s):  
Temperature Stress ◽  
Heat Tolerance ◽  
Antifreeze Protein ◽  
Functional Domain ◽  
E Coli ◽  
Ammopiptanthus Nanus ◽  
Cold Sensitive ◽  
Crystal Binding ◽  
Function Expression ◽  
Response To Temperature

AbstractTemperature stress restricts plant growth and development. Antifreeze protein (AFP) can improve plants antifreeze ability. In our previous study, the AnAFP gene cloned from Ammopiptanthus nanus was confirmed to be an excellent candidate enhancing plant cold resistance. But, AnAFP protein shared similar structures with KnS type dehydrins including K, N and S domains except ice crystal binding domain A. Here, we generated AnAFPΔA, AnAFPΔK, AnAFPΔN and AnAFPΔS, and transformed them into ordinary and cold sensitive strains of E. coli, and Arabidopsis KS type dehydrin mutant to evaluate their function. Expression of AnAFPΔA decreases cold and heat tolerance in E. coli, meanwhile, AnAFP enhances heat tolerance in Arabidopsis, suggesting that domain A is a thermal stable functional domain. AnAFP, AnAFPΔA and AnAFPΔS localize in whole cell, but AnAFPΔK and AnAFPΔN only localizes in nucleus and cytoplasm, respectively, exhibiting that K and N domains control localization of AnAFP. Likewise, K domain blocks interaction between AnAFP and AnICE1. The result of RT-qPCR showed that expression of AnAFP, AnICE1 and AnCBF genes was significantly induced by high-temperature, indicating that the AnAFP is likely regulated by ICE1-CBF-COR signal pathway. Taken together, the study provides insights into understanding the mechanism of AnAFP in response to temperature stress and gene resource to improve heat or cold tolerance of plants in transgenic engineering.

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