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identifier: 2012337
description:
epitope description:W69, G71, H72, F76, R111, N114, P116, F118, P119, T120, R122, S132, G133, V135, P137, V138, A139, R149
antigen name:Sulfhydryl oxidase 1
host organism:Mus musculus BALB/c
antibody name:MAb492.1
aggregation:
instance of dataset
availability:
available
primaryPublications: 23867277
authorizations:
registration not required
accessURL: http://www.iedb.org/reference/1026931
landingPage: http://www.iedb.org/assay/2012337
type:
Literature
publicationVenue:
J Mol Biol
dates:
2013
study type: b cell assays
subject species: Homo sapiens
fullName:
Iris Grossman
Assaf Alon
Tal Ilani
Deborah Fass
method:
biological activity
name:
An inhibitory antibody blocks the first step in the dithiol/disulfide relay mechanism of the enzyme QSOX1.
description:
The epitope-specific MAb492.1 inhibited the sulfhtdryl oxidase activity ofQSOX1 secreted from confluent fibroblasts. The IC50 = 43 nM in an assay for inhibition of RNase oxidation. The apparent inhibitory constant was determined to be Ki = 0.9 nM in an oxygen consumption assay. In a physiological assay, MAb492.1 inhibited epithelial adherence to fibroblasts and inhibited tumor cell migration on fibroblast monolayers. The Fab492.1 and scFv492.1 fragments also inhibited RNase oxidation with IC50 = 100 nM and IC50 = 250 nM, respectively.

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