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Uzozie AC, Smith TG, Chen S, Lange PF. Sensitive Identification of Known and Unknown Protease Activities by Unsupervised Linear Motif Deconvolution. Anal Chem 2022; 94:2244-2254. [PMID: 35029975 DOI: 10.1021/acs.analchem.1c04937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The cleavage-site specificities for many proteases are not well understood, restricting the utility of supervised classification methods. We present an algorithm and web interface to overcome this limitation through the unsupervised detection of overrepresented patterns in protein sequence data, providing insight into the mixture of protease activities contributing to a complex system. Here, we apply the RObust LInear Motif Deconvolution (RoLiM) algorithm to confidently detect substrate cleavage patterns for SARS-CoV-2 MPro protease in the N-terminome data of an infected human cell line. Using mass spectrometry-based peptide data from a case-control comparison of 341 primary urothelial bladder cancer cases and 110 controls, we identified distinct sequence motifs indicative of increased matrix metallopeptidase activity in urine from cancer patients. The evaluation of N-terminal peptides from patient plasma post-chemotherapy detected novel granzyme B/corin activity. RoLiM will enhance the unbiased investigation of peptide sequences to establish the composition of known and uncharacterized protease activities in biological systems. RoLiM is available at http://langelab.org/rolim/.
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Affiliation(s)
- Anuli C Uzozie
- Department of Pathology, University of British Columbia, Vancouver, British Columbia V6T 1Z7, Canada.,Michael Cuccione Childhood Cancer Research Program, BC Children's Hospital Research Institute, Vancouver, British Columbia V5Z 4H4, Canada
| | - Theodore G Smith
- Department of Pathology, University of British Columbia, Vancouver, British Columbia V6T 1Z7, Canada.,Michael Cuccione Childhood Cancer Research Program, BC Children's Hospital Research Institute, Vancouver, British Columbia V5Z 4H4, Canada
| | - Siyuan Chen
- Department of Pathology, University of British Columbia, Vancouver, British Columbia V6T 1Z7, Canada.,Michael Cuccione Childhood Cancer Research Program, BC Children's Hospital Research Institute, Vancouver, British Columbia V5Z 4H4, Canada
| | - Philipp F Lange
- Department of Pathology, University of British Columbia, Vancouver, British Columbia V6T 1Z7, Canada.,Michael Cuccione Childhood Cancer Research Program, BC Children's Hospital Research Institute, Vancouver, British Columbia V5Z 4H4, Canada.,Department of Molecular Oncology, BC Cancer, Vancouver, British Columbia V5Z 1L3, Canada
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Zatylny-Gaudin C, Cornet V, Leduc A, Zanuttini B, Corre E, Le Corguillé G, Bernay B, Garderes J, Kraut A, Couté Y, Henry J. Neuropeptidome of the Cephalopod Sepia officinalis: Identification, Tissue Mapping, and Expression Pattern of Neuropeptides and Neurohormones during Egg Laying. J Proteome Res 2015; 15:48-67. [PMID: 26632866 DOI: 10.1021/acs.jproteome.5b00463] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cephalopods exhibit a wide variety of behaviors such as prey capture, communication, camouflage, and reproduction thanks to a complex central nervous system (CNS) divided into several functional lobes that express a wide range of neuropeptides involved in the modulation of behaviors and physiological mechanisms associated with the main stages of their life cycle. This work focuses on the neuropeptidome expressed during egg-laying through de novo construction of the CNS transcriptome using an RNAseq approach (Illumina sequencing). Then, we completed the in silico analysis of the transcriptome by characterizing and tissue-mapping neuropeptides by mass spectrometry. To identify neuropeptides involved in the egg-laying process, we determined (1) the neuropeptide contents of the neurohemal area, hemolymph (blood), and nerve endings in mature females and (2) the expression levels of these peptides. Among the 38 neuropeptide families identified from 55 transcripts, 30 were described for the first time in Sepia officinalis, 5 were described for the first time in the animal kingdom, and 14 were strongly overexpressed in egg-laying females as compared with mature males. Mass spectrometry screening of hemolymph and nerve ending contents allowed us to clarify the status of many neuropeptides, that is, to determine whether they were neuromodulators or neurohormones.
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Affiliation(s)
- Céline Zatylny-Gaudin
- Normandy University , F-14032 Caen, France.,Normandy University , UMR BOREA MNHN, UPMC, UCBN, CNRS-7208, IRD-207, F-14032 Caen, France
| | - Valérie Cornet
- Normandy University , F-14032 Caen, France.,Normandy University , UMR BOREA MNHN, UPMC, UCBN, CNRS-7208, IRD-207, F-14032 Caen, France
| | - Alexandre Leduc
- Normandy University , F-14032 Caen, France.,Normandy University , UMR BOREA MNHN, UPMC, UCBN, CNRS-7208, IRD-207, F-14032 Caen, France
| | - Bruno Zanuttini
- Normandy University , GREYC, UMR CNRS 6072, F-14032 Caen, France
| | - Erwan Corre
- UPMC, CNRS, FR2424, ABiMS, Station Biologique, 29680 Roscoff, France
| | | | - Benoît Bernay
- Normandy University , F-14032 Caen, France.,Post Genomic Platform PROTEOGEN, Normandy University , SF ICORE 4206, F-14032 Caen, France
| | - Johan Garderes
- Center for Marine Research, "Ruder Boskovic" Institute , HR-52210 Rovinj, Croatia
| | - Alexandra Kraut
- Univ. Grenoble Alpes , iRTSV-BGE, F-38000 Grenoble, France.,CEA, iRTSV-BGE, F-38000 Grenoble, France.,INSERM, BGE, F-38000 Grenoble, France
| | - Yohan Couté
- Univ. Grenoble Alpes , iRTSV-BGE, F-38000 Grenoble, France.,CEA, iRTSV-BGE, F-38000 Grenoble, France.,INSERM, BGE, F-38000 Grenoble, France
| | - Joël Henry
- Normandy University , F-14032 Caen, France.,Normandy University , UMR BOREA MNHN, UPMC, UCBN, CNRS-7208, IRD-207, F-14032 Caen, France.,Post Genomic Platform PROTEOGEN, Normandy University , SF ICORE 4206, F-14032 Caen, France
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Veenstra JA. The contribution of the genomes of a termite and a locust to our understanding of insect neuropeptides and neurohormones. Front Physiol 2014; 5:454. [PMID: 25477824 PMCID: PMC4237046 DOI: 10.3389/fphys.2014.00454] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Accepted: 11/03/2014] [Indexed: 12/29/2022] Open
Abstract
The genomes of the migratory locust Locusta migratoria and the termite Zootermopsis nevadensis were mined for the presence of genes encoding neuropeptides, neurohormones, and their G-protein coupled receptors (GPCRs). Both species have retained a larger number of neuropeptide and neuropeptide GPCRs than the better known holometabolous insect species, while other genes that in holometabolous species appear to have a single transcript produce two different precursors in the locust, the termite or both. Thus, the recently discovered CNMa neuropeptide gene has two transcripts predicted to produce two structurally different CNMa peptides in the termite, while the locust produces two different myosuppressin peptides in the same fashion. Both these species also have a calcitonin gene, which is different from the gene encoding the calcitonin-like insect diuretic hormone. This gene produces two types of calcitonins, calcitonins A and B. It is also present in Lepidoptera and Coleoptera and some Diptera, but absent from mosquitoes and Drosophila. However, in holometabolous insect species, only the B transcript is produced. Their putative receptors were also identified. In contrast, Locusta has a highly unusual gene that codes for a salivation stimulatory peptide. The Locusta genes for neuroparsin and vasopressin are particularly interesting. The neuroparsin gene produces five different transcripts, of which only one codes for the neurohormone identified from the corpora cardiaca. The other four transcripts code for neuroparsin-like proteins, which lack four amino acid residues, and that for that reason we called neoneuroparsins. The number of transcripts for the neoneuroparsins is about 200 times larger than the number of neuroparsin transcripts. The first exon and the putative promoter of the vasopressin genes, of which there are about seven copies in the genome, is very well-conserved, but the remainder of these genes is not. The relevance of these findings is discussed.
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Affiliation(s)
- Jan A Veenstra
- INCIA UMR 5287 CNRS, Université de Bordeaux Pessac, France
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