English: The native state of serpins is an equilibrium between a fully-stressed state (left) and a partially relaxed state (right). The five-stranded A-sheet (light blue) contains two functionally important regions for the serpin's mechanism, the breach and the shutter. The Reactive Centre Loop (RCL, blue) exists in a dynamic equilibrium between the fully exposed conformation (left) and a conformation where it is partially inserted into the breach of the A-sheet (right). (PDB: 1QLP, 1YXA).
[1][2]
एट्रीब्यूसन – अहाँक रचनाक श्रेय लाइसेन्सकर्ता अथवा लेखकके बताएल गएल माध्यमसँ देबए पडत (मुदा ई प्रकार नै की वोसँ लागै कि ओ अहाँक अथवा अहाँकद्वारा रचनाक प्रयोग क समर्थन करैत अछि)।
https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue
↑Elliott PR, Lomas DA, Carrell RW, Abrahams JP. (1996). "Inhibitory conformation of the reactive loop of alpha 1-antitrypsin". Nature Structural & Molecular Biology3 (8): 676–81. DOI:10.1038/nsb0896-676. PMID8756325.