The repressor is a dimer of a 236 amino acid subunit. Each subunit consists of two domains, one of which (the N-terminal) includes the helix-turn-helix motif and binds DNA, while the other is responsible for the formation of dimers. However, the two domains of one subunit can be separated by mild proteolysis.
The purpose of a marriage license is to provide proof that a couple is allowed to enter into a legally recognized marriage. In order to receive a marriage license, couples must provide proof of their eligibility of meeting all state requirements.
There are some minor variations between states (so make sure you check with your stateâs county clerk first), but these are the pieces of identification you need to bring with you to get your marriage license: 1  Birth certificate (or some proof of citizenship like a passport). 2  A photo ID (like a driverâs license).