There are two models of protein folding that are currently being confirmed: 1  The diffusion collision model, in which a nucleus is formed, then the secondary structure is formed, and finally these secondary structures are collided together and pack tightly together.
If you do not test within these dates you will have to reregister and repay the examination fee. The ATT contains your authorization number, candidate identification number and an expiration date. You need the ATT to: Schedule an appointment to take the NCLEX examination.
If you have not received confirmation of your NCLEX registration within two days of submitting a registration, you should call NCLEX Candidate Services to check the status of your registration. You should not submit another NCLEX registration and fee before calling.