JoVE 비디오를 활용하시려면 도서관을 통한 기관 구독이 필요합니다. 전체 비디오를 보시려면 로그인하거나 무료 트라이얼을 시작하세요.
Chapters
- 00:03Introduction
- 01:15Determination (in silico) of the ANS and SERCA N‐Domain Interaction
- 03:09Expression and Purification of the Recombinant N‐Domain
- 03:39Monitor the Formation of the ANS‐N‐Domain Complex Based on ANS and N‐Domain Fluorescence Intensity Changes
- 07:38N‐Domain Intrinsic Fluorescence Titration by Trp Chemical Modification with NBS
- 08:43Titrate the NBS Modified N‐Domain with ANS by Recording Fluorescence Spectra at 25°C
- 09:37Evidence of ANS Binding to the Chemically Modified N‐Domain by Excitation at λ = 370 nm
- 10:32Results Overview
- 11:30Conclusions
ANS se une al dominio N recombinante Ca2+-ATPasa. Los espectros de fluorescencia muestran un patrón similar a FRET sobre la excitación a una longitud de onda de 295 nm. La modificación química del Trp mediada por NBS apaga la fluorescencia del dominio N, lo que conduce a la ausencia de transferencia de energía (FRET) entre el residuo de Trp y el ANS.
