Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Generation and Characterization of a Monoclonal Antibody Against an African Swine Fever Virus Protein Encoded by the A137R Gene

ABSTRACT: The ongoing African swine fever (ASF) pandemic continues to have a major impact on global pork production and trade. Since ASF cannot be distinguished from other swine hemorrhagic fevers clinically, ASF-specific laboratory diagnosis is critical. Thus ASF virus (ASFV)-specific monoclonal antibodies (mAbs) are critical for the development of laboratory diagnostics. In this study, we report one ASFV-specific mAb, F88ASF-55, that was generated and characterized. A proteomic approach was performed to determine the sequence identities of the protein band (14 kDa) recognized by F88ASF-55. The stained protein band was excised, digested, and analyzed by LC-MS/MS. A total of 10 exclusive unique peptides and 15 exclusive unique spectra were identified (data not shown). The amino acid coverage (88/137) of the structural protein encoded by A137R was 64.2%. The results confirmed that the mAb-binding epitope is located on the protein encoded by A137R (formerly known as p11.5). Epitope mapping results revealed a highly conserved linear epitope recognized by this mAb, corresponding to amino acids 111-125 of pA137R.

INSTRUMENT(S): Orbitrap Fusion Lumos

ORGANISM(S): African Swine Fever Virus (ncbitaxon:10497)

SUBMITTER: Ming Yang

PROVIDER: MSV000092995 | MassIVE |

SECONDARY ACCESSION(S): PXD045773

REPOSITORIES: MassIVE

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Epitope Mapping of Human Polyclonal Antibodies to the fHbp Antigen of a Neisseria Meningitidis Vaccine by Hydrogen-Deuterium Exchange Mass Spectrometry (HDX-MS)

Project description:Antigen-antibody interactions play a key role in the immune response post vaccination and the mechanism of action of antibody-based biopharmaceuticals. 4CMenB is a multicomponent vaccine against Neisseria meningitidis serogroup B in which factor H binding protein (fHbp) is one of the key antigens. In this study, we use hydrogen/deuterium exchange mass spectrometry (HDX-MS) to identify epitopes in fHbp recognized by polyclonal antibodies (pAb) from two human donors (HDs) vaccinated with 4CMenB. Our HDX-MS data reveal several epitopes recognized by the complex mixture of human pAb. Furthermore, we show that the pAb from the two HDs recognize the same epitope regions. Epitope mapping of total pAb and purified fHbp-specific pAb from the same HD reveals that the two antibody samples recognize the same main epitopes, showing that HDX-MS based epitope mapping can, in this case at least, be performed directly using total IgG pAb samples that have not undergone Ab-selective purification. Two monoclonal antibodies (mAb) were previously produced from B-cell repertoire sequences from one of the HDs and used for epitope mapping of fHbp with HDX-MS. The epitopes identified for the pAb from the same HD in this study, overlap with the epitopes recognized by the two individual mAbs. Overall, HDX-MS epitope mapping appears highly suitable for simultaneous identification of epitopes recognized by pAb from human donors and to thus both guide vaccine development and study basic human immunity to pathogens, including viruses.

2024-05-24 | PXD046572 | Pride

Epitope Mapping of Human Polyclonal Antibodies to the fHbp Antigen of a Neisseria Meningitidis Vaccine by Hydrogen-Deuterium Exchange Mass Spectrometry (HDX-MS) - part 2

2024-05-22 | PXD047712 | Pride

Epitope mapping of a monoclonal antibody directed against Neisserial Heparin Binding Antigen by protein microarray

Project description:The aim of the study was to determine the epitope targeted by 31E10/E7 mouse monoclonal antibody (mAb). mAb 31E10/E7 was diluted at 1:2000 and incubated on a non-commercial Protein Microarray platform printed with NHBA specific recombinant protein fragments and full length NHBA of different variants.

2016-05-27 | GSE81378 | GEO

CD140a+ human glial progenitor cells

Project description:Glial progenitor cells (GPCs) pervade the human brain. These cells express gangliosides recognized by MAb A2B5, and some but not all can generate oligodendrocytes. Since some A2B5+ GPCs express PDGFa receptor (PDGFRa), which is critical to oligodendrocyte development, we asked if PDGFRa-directed sorting might isolate oligodendrocyte-competent progenitors. We used FACS to sort PDGFRa+ cells from the second trimester fetal human forebrain, based on expression of the PDGFRa epitope CD140a. CD140a+ cells could be maintained as mitotic progenitors that could be instructed to either oligodendrocyte or astrocyte phenotype. Transplanted CD140a+ cells robustly myelinated the hypomyelinated shiverer mouse brain. Microarray confirmed that CD140a+ cells differentially expressed PDGFRA, NG2, OLIG1/2, NKX2.2 and SOX2. Some expressed CD9, thereby defining a CD140a+/CD9+ fraction of oligodendrocyte-biased progenitors. CD140a+ cells differentially expressed genes of the PTN-PTPRZ1, wnt, notch and BMP pathways, suggesting the interaction of self-renewal and fate-restricting pathways in these cells, while identifying targets for their mobilization and instruction. 10 samples, 5 CD140a+, and 5 CD140a- sorted samples for individual fetal human brain

2011-09-30 | E-GEOD-29368 | biostudies-arrayexpress

Epitope mapping of a monoclonal antibody directed against Neisserial Heparin Binding Antigen by peptide microarray

Project description:The aim of the study was to determine the epitope targeted by 31E10/E7 mouse monoclonal antibody (mAb) and the cross-reactivity to linear peptide epitopes of 10 different Neisserial Heparin Binding Antigen (NHBA) variants. mAb 31E10/E7 was diluted at 1:200 and incubated on a custom PepStar Peptide Microarray platform printed with 560 different peptides in three independent experiments.

2016-05-27 | GSE81377 | GEO

Identification of target antigens of CSF OCB-derived monoclonal antibodies

Project description:The identification of target antigens recognized by monoclonal antibodies that have been derived from oligoclonal band IgG of CSF samples from multiple sclerosis patients.

2016-06-06 | GSE72789 | GEO

CD140a+ human oligodendrocyte progenitor cells

2011-10-01 | GSE29368 | GEO

To determine the changes in the expression of human colon cancer cells (HCT-15) untreated and treated with 5-aza-2''-deoxycytidine

Project description:Human colon cancer cells (HCT-15) treated with 5-aza-2'-deoxycytidine greatly enhanced sialyl Lewis X epitope, which correlated with increased binding of these cells to immobilized E-selectin in a parallel plate dynamic flow binding assay. Human colon cancer cells (HCT-15) treated with 5-aza-2'-deoxycytidine greatly enhanced sialyl Lewis X epitope, which correlated with increased binding of these cells to immobilized E-selectin in a parallel plate dynamic flow binding assay. The sialyl Lewis x epitope resides at a 250 Kd protein band as assessed following immunoprecipitation. We would like to know changes in the expression of glycogenes following 5-aza-2'-deoxycytidine treatment.

2011-09-05 | E-GEOD-31933 | biostudies-arrayexpress

Features and protective efficacy of human monoclonal antibodies targeting M. tuberculosis arabinomannan

Project description:Human antibody responses to AM/LAM are heterogenous and knowledge of reactivity to specific glycan epitopes at the monoclonal level is limited. Using novel glycan arrays, we characterized a very high affinity monoclonal antibody P1AM25 to AM/LAM, determined this mAb recognized distinct glycan epitopes from other anti-AM/LAM mAbs reported.

2023-11-08 | GSE218873 | GEO

Identification and characterization of a SARS-CoV-2 specific CD8 T cell response with immunodominant features

Project description:The COVID-19 pandemic caused by SARS-CoV-2 is a continuous challenge worldwide, and there is an urgent need to map the landscape of immunogenic and immunodominant epitopes recognized by CD8 T cells. Here, we analyze samples from 31 COVID-19 patients for CD8 T cell recognition of 500 peptide-HLA class I complexes, restricted by 10 common HLA alleles. We identify 18 CD8 T cell recognized SARS-CoV-2 epitopes, including an epitope with immunodominant features derived from ORF1ab and restricted by HLA-A*01:01. In-depth characterization of SARS-CoV-2-specific CD8 T cell responses of patients with acute critical and severe disease reveals high expression of NKG2A, lack of cytokine production and a gene expression profile inhibiting T cell re-activation and migration while sustaining survival. SARS-CoV-2-specific CD8 T cell responses are detectable up to 5 months post recovery from critical and severe disease, and these responses convert from dysfunctional effector to functional memory CD8 T cells during convalescence.

2021-03-25 | GSE169503 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data