Title : Characterisation and quantification of the reaction(s) catalysed by transglutaminase using the o-phthaldialdehyde reagent.

Pub. Date : 2003 Jun

PMID : 12866625






7 Functional Relationships(s)
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1 The potential application of the o-phthaldialdehyde (OPA) reagent for quantification of the type and extent of the reaction(s) catalysed by transglutaminase (TGase) during incubation with sodium caseinate (NaCN) was investigated. Sodium Cyanide transglutaminase 1 Homo sapiens
2 The potential application of the o-phthaldialdehyde (OPA) reagent for quantification of the type and extent of the reaction(s) catalysed by transglutaminase (TGase) during incubation with sodium caseinate (NaCN) was investigated. Sodium Cyanide transglutaminase 1 Homo sapiens
3 Initial studies were performed to ensure that NH3, a by-product of TGase activity, could be determined with the OPA reagent in trichloroacetic acid (TCA) supernatants of NaCN solutions. Sodium Cyanide transglutaminase 1 Homo sapiens
4 The release of NH3 and the decrease in epsilon-amino groups on incubating NaCN with TGase was subsequently quantified using the OPA reagent. Sodium Cyanide transglutaminase 1 Homo sapiens
5 Incubation of NaCN (4% w/v) with TGase at 23 degrees C resulted in progressive increases and decreases, respectively, in NH3 and -amino group concentration with increased incubation time. Sodium Cyanide transglutaminase 1 Homo sapiens
6 These changes were dependent on TGase:NaCN. Sodium Cyanide transglutaminase 1 Homo sapiens
7 It was estimated that approximately 20% of the available Lys residues in NaCN were involved in TGase-catalysed cross-links. Sodium Cyanide transglutaminase 1 Homo sapiens