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Perinereis aibuhitensis

ABSTRACT: Perinereis aibuhitensis Raw sequence reads

PROVIDER: PRJNA841694 | ENA |

REPOSITORIES: ENA

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Dataset's files

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			Action	DRS
	SRR19383290_1.fastq.gz	Fastqsanger.gz
	SRR19383290_2.fastq.gz	Fastqsanger.gz
	SRR19383291_1.fastq.gz	Fastqsanger.gz
	SRR19383291_2.fastq.gz	Fastqsanger.gz
	SRR19383292_1.fastq.gz	Fastqsanger.gz

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Perinereis aibuhitensis

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Purification and Properties of a Plasmin-like Marine Protease from Clamworm (<i>Perinereis aibuhitensis</i>).

Project description:Marine organisms are a rich source of enzymes that exhibit excellent biological activity and a wide range of applications. However, there has been limited research on the proteases found in marine mudflat organisms. Based on this background, the marine fibrinolytic enzyme FELP, which was isolated and purified from clamworm (Perinereis aibuhitensis), has exhibited excellent fibrinolytic activity. We demonstrated the FELP with a purification of 10.61-fold by precipitation with ammonium sulfate, ion-exchange chromatography, and gel-filtration chromatography. SDS-PAGE, fibrin plate method, and LC-MS/MS indicated that the molecular weight of FELP is 28.9 kDa and identified FELP as a fibrinolytic enzyme-like protease. FELP displayed the maximum fibrinolytic activity at pH 9 (407 ± 16 mm2) and 50 °C (724 ± 27 mm2) and had excellent stability at pH 7-11 (50%) or 30-60 °C (60%), respectively. The three-dimensional structure of some amino acid residues of FELP was predicted with the SWISS-MODEL. The fibrinolytic and fibrinogenolytic assays showed that the enzyme possessed direct fibrinolytic activity and indirect fibrinolysis via the activation of plasminogen; it could preferentially degrade Aα-chains of fibrinogen, followed by Bβ- and γ-chains. Overall, the fibrinolytic enzyme was successfully purified from Perinereis aibuhitensis, a marine Annelida (phylum), with favorable stability that has strong fibrinolysis activity in vitro. Therefore, FELP appears to be a potent fibrinolytic enzyme with an application that deserves further investigation.

| S-EPMC10890283 | biostudies-literature

Morus alba Raw protein sequence reads

Project description:Morus alba L. Raw protein sequence reads and sequence

2024-02-08 | PXD049451 |

Project description:RNA-Sequencing of Perinereis aibuhitensis under Cu and Cd stress

| PRJNA853479 | ENA

Molecular characterization of G-protein-coupled receptor (GPCR) and protein kinase A (PKA) cDNA in <i>Perinereis aibuhitensis</i> and expression during benzo(a)pyrene exposure.

Project description:BackgroundG-protein-coupled receptors (GPCRs) are one of the most important molecules that transfer signals across the plasma membrane, and play central roles in physiological systems. The molecular architecture of GPCRs allows them to bind to diverse chemicals, including environmental contaminants.MethodsTo investigate the effects of benzo(a)pyrene (B(a)P) on GPCR signaling, GPCR and the protein kinase A (PKA) catalytic subunit of Perinereis aibuhitensis were cloned. The expression patterns of these two genes during B(a)P exposure were determined with real-time fluorescence quantitative PCR. The PKA content in P. aibuhitensis under B(a)P exposure was examined.ResultsThe full-length cDNAs of PaGPCR and the PaPKA catalytic subunit were 1,514 and 2,662 nucleotides, respectively, encoding 338 and 350 amino acids, respectively. Multiple sequence alignments indicated that the deduced amino acid sequence of PaGPCR shared a low level of similarity with the orphan GPCRs of polychaetes and echinoderms, whereas PaPKA shared a high level of identify with the PKA catalytic subunits of other invertebrates. B(a)P exposure time-dependently elevated the expression of PaGPCR and PaPKA. The expression of both PaGPCR and PaPKA was also dose-dependent, except at a dose of 10 μg/L B(a)P. The PKA content in concentration group was elevated on day 4, with time prolonging the PKA content was down-regulated to control level.DiscussionThese results suggested that GPCR signaling in P. aibuhitensis was involved in the polychaete's response to environmental contaminants.

| S-EPMC6876487 | biostudies-literature

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