Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Interleukin-1 family
Table title:
Nomenclature
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Name </th><th colspan=1 rowspan=1 > Family name </th><th colspan=1 rowspan=1 > Receptor </th><th colspan=1 rowspan=1 > Coreceptor </th><th colspan=1 rowspan=1 > Property </th><th colspan=1 rowspan=1 > Chromosomal location </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > IL-1α </td><td colspan=1 rowspan=1 > IL-1F1 </td><td class="highlighted"  colspan=1 rowspan=1 > IL-1RI </td><td class="highlighted"  colspan=1 rowspan=1 > IL-1RAcP </td><td colspan=1 rowspan=1 > Proinflammatory </td><td colspan=1 rowspan=1 > 2q14 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > IL-1β </td><td colspan=1 rowspan=1 > IL-1F2 </td><td class="highlighted"  colspan=1 rowspan=1 > IL-1RI </td><td class="highlighted"  colspan=1 rowspan=1 > IL-1RAcP </td><td colspan=1 rowspan=1 > Proinflammatory </td><td colspan=1 rowspan=1 > 2q14 </td></tr>
<tr> <td colspan=1 rowspan=1 > IL-1Ra </td><td colspan=1 rowspan=1 > IL-1F3 </td><td colspan=1 rowspan=1 > IL-1RI </td><td colspan=1 rowspan=1 > NA </td><td colspan=1 rowspan=1 > Antagonist for IL-1α, IL-1β </td><td colspan=1 rowspan=1 > 2q14.2 </td></tr>
<tr> <td colspan=1 rowspan=1 > IL-18 </td><td colspan=1 rowspan=1 > IL-1F4 </td><td colspan=1 rowspan=1 > IL-18Rα </td><td colspan=1 rowspan=1 > IL-18Rβ </td><td colspan=1 rowspan=1 > Proinflammatory </td><td colspan=1 rowspan=1 > 11q22.2-q22.3 </td></tr>
<tr> <td colspan=1 rowspan=1 > IL-36Ra </td><td colspan=1 rowspan=1 > IL-1F5 </td><td colspan=1 rowspan=1 > IL-1Rrp2 </td><td colspan=1 rowspan=1 > NA </td><td colspan=1 rowspan=1 > Antagonist for IL-36α, IL-36β, IL-36γ </td><td colspan=1 rowspan=1 > 2q14 </td></tr>
<tr> <td colspan=1 rowspan=1 > IL-36α </td><td colspan=1 rowspan=1 > IL-1F6 </td><td colspan=1 rowspan=1 > IL-1Rrp2 </td><td colspan=1 rowspan=1 > IL-1RAcP </td><td colspan=1 rowspan=1 > Proinflammatory </td><td colspan=1 rowspan=1 > 2q12 - q14.1 </td></tr>
<tr> <td colspan=1 rowspan=1 > IL-37 </td><td colspan=1 rowspan=1 > IL-1F7 </td><td colspan=1 rowspan=1 > Unknown </td><td colspan=1 rowspan=1 > Unknown </td><td colspan=1 rowspan=1 > Anti-inflammatory </td><td colspan=1 rowspan=1 > 2q12 – q14.1 </td></tr>
<tr> <td colspan=1 rowspan=1 > IL-36β </td><td colspan=1 rowspan=1 > IL-1F8 </td><td colspan=1 rowspan=1 > IL-1Rrp2 </td><td colspan=1 rowspan=1 > IL-1RAcP </td><td colspan=1 rowspan=1 > Proinflammatory </td><td colspan=1 rowspan=1 > 2q14 </td></tr>
<tr> <td colspan=1 rowspan=1 > IL-36γ </td><td colspan=1 rowspan=1 > IL1-F9 </td><td colspan=1 rowspan=1 > IL-1Rrp2 </td><td colspan=1 rowspan=1 > IL-1RAcP </td><td colspan=1 rowspan=1 > Proinflammatory </td><td colspan=1 rowspan=1 > 2q12 – q21 </td></tr>
<tr> <td colspan=1 rowspan=1 > IL-38 </td><td colspan=1 rowspan=1 > IL-1F10 </td><td colspan=1 rowspan=1 > IL-1Rrp2 </td><td colspan=1 rowspan=1 > Unknown </td><td colspan=1 rowspan=1 > Anti-inflammatory </td><td colspan=1 rowspan=1 > 2q13 </td></tr>
<tr> <td colspan=1 rowspan=1 > IL-33 </td><td colspan=1 rowspan=1 > IL-1F11 </td><td colspan=1 rowspan=1 > ST2 </td><td colspan=1 rowspan=1 > IL-1RAcP </td><td colspan=1 rowspan=1 > Th2 responses, proinflammatory </td><td colspan=1 rowspan=1 > 9p24.1 </td></tr>
</table>
Question:
For what do IL-1RI and IL-1RAcP serve as receptors and coreceptors?
Answer:
IL-1RI and IL-1RAcP serve as receptors and coreceptors for IL-1α and IL-1β.