xis
- noun
- UK
- For lunch, I ordered a xis filled with beef, lettuce, and tomato from the street vendor.
Examples
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In Brazil, many people enjoy a xis with grilled chicken and a spicy sauce.
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The popular snack in Bahia, known as xis, features diverse toppings like banana and cheese.
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Thermostable XIs with neutral or slightly acidic pH optima have potential for industrial applications.
Academic text (2015) -
XIs are divided into two classes based on their sequence homology: Class I and Class II (Vangrysperre et al., 1990).
Academic text (2015) -
The extended N-terminus of the class II XIs makes it an attractive target for attaching a carbohydrate-binding domain (CBD) for immobilization.
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The Thermotoga XIs are all class II enzymes, have an N-terminal 50-amino acid insert (Vieille et al., 1995).
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In addition to maximizing activity, the presence of both Mg2+ and Co2+ also enhanced the thermostability of all the XIs studied when compared with Mg2+ or Co2+ alone.
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Metal specificity appears to be related to the residues surrounding the metal binding sites. XIs from T. maritima and T. neapolitana stabilize by Co<sup>2+</sup> and Mg<sup>2+</sup>.
Academic text (2015)
How Filling
Surface Forms
Etymology
Xis is the name of a Brazilian burger and a helpful way to remember it is this: the food name came from the letter X in menu names like X-salada, where people often said the X like 'cheese', so the short form xis began to mean the sandwich. That's why xis today means a type of burger or sandwich in Brazil.