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2. Elimination reaction - Wikipedia

   en.wikipedia.org/wiki/Elimination_reaction

   Elimination reaction of cyclohexanol to cyclohexene with sulfuric acid and heat [1] An elimination reaction is a type of organic reaction in which two substituents are removed from a molecule in either a one- or two-step mechanism. [2] The one-step mechanism is known as the E2 reaction, and the two-step mechanism is known as the E1 reaction ...

3. E1cB-elimination reaction - Wikipedia

   en.wikipedia.org/wiki/E1cB-elimination_reaction

   All elimination reactions involve the removal of two substituents from a pair of atoms in a compound. Alkene, alkynes, or similar heteroatom variations (such as carbonyl and cyano) will form. The E1cB mechanism is just one of three types of elimination reaction. The other two elimination reactions are E1 and E2 reactions.

4. Ubiquitin-activating enzyme - Wikipedia

   en.wikipedia.org/wiki/Ubiquitin-activating_enzyme

   Ubiquitin-activating enzymes, also known as E1 enzymes, catalyze the first step in the ubiquitination reaction, which (among other things) can target a protein for degradation via a proteasome. This covalent bond of ubiquitin or ubiquitin-like proteins to targeted proteins is a major mechanism for regulating protein function in eukaryotic ...

5. Mailing Your Federal Tax Return? Here’s Exactly Where ... - AOL

   www.aol.com/finance/mailing-federal-tax-return...

   The most common forms are the 1040 and 1040-SR, but the addresses for form 1040-X, which is used to make edits to your tax return, are also included. Filing Addresses for Form 1040 and 1040-SR

6. What Is a 1040 Tax Form? 3 Things To Know Before You File - AOL

   www.aol.com/1040-tax-form-3-things-001143148.html

   No, a 1040 is not the same as a W-2, but you use the information included on a W-2 to complete the 1040 form. A W-2 is the form employers use to report the wages paid to an employee during the year.

7. Porphobilinogen deaminase - Wikipedia

   en.wikipedia.org/wiki/Porphobilinogen_deaminase

   Full PBG Deaminase Mechanism. The first step is believed to involve an E1 elimination of ammonia from porphobilinogen, generating a carbocation intermediate (1). [10] This intermediate is then attacked by the dipyrrole cofactor of porphobilinogen deaminase, which after losing a proton yields a trimer covalently bound to the enzyme (2).