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<P class="title">
UTHSC Brain mRNA U74Av2 (Nov05) PDNN
<A HREF="/webqtl/main.py?FormID=editHtml"><img src="/images/modify.gif" alt="modify this page" border= 0 valign="middle"></A><BR><BR>Accession number: <A HREF="/webqtl/main.py?FormID=sharinginfo&GN_AccessionId=95">GN95</A></P>
<P class="subtitle"> Summary:</P>
<Blockquote><P>
NEW AND MORE RIGOROUS QUALITY CONTROL. This November 2005 data freeze provides estimate of mRNA expression in brains of BXD recombinant inbred mice measured using Affymetrix U74Av2 microarrays. Data were generated at the University of Tennessee Health Science Center (UTHSC). Over 200 brain samples from 32 strains were hybridized in small pools (n=3) to 75 arrays. Data were processed using the <a href="http://odin.mdacc.tmc.edu/~zhangli/PerfectMatch/" target="_blank" class="fs14">PDNN</a> method of Zhang. To simplify comparison between transforms, PDNN values of each array were adjusted to an average of 8 units and a variance of 2 units.
</P>
</Blockquote>
<P class="subtitle"> About the cases used to generate this set of data:</P>
<Blockquote><P>
This data set includes estimate of gene expression for 32 genetically uniform lines of mice: C57BL/6J (B6, or simply B), DBA/2J (D2 or D), the B6D2 F1 intercross progeny, and 29 BXD recombinant inbred (RI) strains derived by crossing female B6 mice with male D2 mice and then inbreeding progeny for over 21 generations. This set of RI strains is a remarkable resource because many of these strains have been extensively phenotyped for hundreds of interesting traits over a 25-year period. A significant advantage of this RI set is that the two parental strains (B6 and D2) have both been extensively sequenced and are known to differ at approximately 1.8 million SNPs. Coding variants (mostly single nucleotide polymorphisms and insertion-deletions) that may produce interesting phenotypes can be rapidly identified in this particular RI set.</P>
<P>BXD1 through BXD32 were produced by Benjamin A. Taylor starting in the late 1970s. BXD33 through BXD42 were also produced by Taylor, but from a second set of crosses initiated in the early 1990s. These strains are all available from the Jackson Laboratory, Bar Harbor, Maine. BXD43 through BXD99 were produced by Lu Lu, Jeremy Peirce, Lee M. Silver, and Robert W. Williams in the late 1990s and early 2000s using advanced intercross progeny (Peirce et al. <a href="http://www.biomedcentral.com/1471-2156/5/7" target="_blank" class="fs14">2004</a>). Only two of these incipient strains are included in the current database (BXD67 and BXD68).</P>
<P>In this mRNA expression database we generally used progeny of stock obtained from The Jackson Laboratory between 1999 and 2001. Animals were generated in-house at the University of Alabama by John Mountz and Hui-Chen Hsu and at the University of Tennessee Health Science Center by Lu Lu and Robert Williams.
</P></Blockquote>
<Blockquote>
The table below lists the arrays by strain, sex, and age. Each array was hybridized to a pool of mRNA from three mice.
</Blockquote>
<Blockquote>
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<tr bgcolor="royalblue">
<td><font color=#FFFFFF>ID</font></td>
<td><font color=#FFFFFF> tube ID </font></td>
<td><font color=#FFFFFF>strain</td>
<td><font color=#FFFFFF>age</font></td>
<td><font color=#FFFFFF>sex</font></td>
<td><font color=#FFFFFF>scale factor</font></td>
<td><font color=#FFFFFF>background average</font></td>
<td><font color=#FFFFFF>present</td>
<td><font color=#FFFFFF>absent</td>
<td><font color=#FFFFFF>marginal</td>
<td><font color=#FFFFFF>AFFX-b-Actin</font></td>
<td><font color=#FFFFFF>AFFX-Gapdh</font></td>
<td><font color=#FFFFFF>chip by</font></td>
</tr>
<tr bgcolor="#eeeeee"><td>1</td><td>S172F1</td><td>C57BL/6J</td><td>197</td><td>F</td><td>4.258</td><td><center>77.85</center></td><td>0.406</td><td>0.566</td><td>0.029</td><td>1.19</td><td>0.78</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>2</td><td>S337F1</td><td>C57BL/6J</td><td>400</td><td>F</td><td>13.85</td><td><center>48.52</center></td><td>0.307</td><td>0.668</td><td>0.025</td><td>1.21</td><td>0.87</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>3</td><td>S092F1</td><td>C57BL/6J</td><td>79</td><td>M</td><td>4.242</td><td><center>73.54</center></td><td>0.406</td><td>0.567</td><td>0.027</td><td>1.54</td><td>0.87</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>4</td><td>S092F2</td><td>C57BL/6J</td><td>79</td><td>M</td><td>3.397</td><td><center>69.95</center></td><td>0.341</td><td>0.636</td><td>0.024</td><td>1.94</td><td>1</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>5</td><td>S169F1</td><td>DBA/2J</td><td>71</td><td>F</td><td>5.409</td><td><center>82.14</center></td><td>0.374</td><td>0.598</td><td>0.028</td><td>1.64</td><td>0.84</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>6</td><td>S286F1</td><td>DBA/2J</td><td>146</td><td>F</td><td>7.153</td><td><center>58.85</center></td><td>0.38</td><td>0.593</td><td>0.027</td><td>1.34</td><td>0.84</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>7</td><td>S101F1</td><td>DBA/2J</td><td>224</td><td>M</td><td>12.767</td><td><center>73.57</center></td><td>0.464</td><td>0.519</td><td>0.017</td><td>1.77</td><td>0.85</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>8</td><td>S098F1</td><td>DBA/2J</td><td>224</td><td>M</td><td>6.463</td><td><center>73.6</center></td><td>0.443</td><td>0.538</td><td>0.019</td><td>1.76</td><td>0.82</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>9</td><td>S238F1</td><td>B6D2F1</td><td>62</td><td>F</td><td>4.413</td><td><center>66.75</center></td><td>0.4</td><td>0.576</td><td>0.025</td><td>1.26</td><td>0.86</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>10</td><td>S191F1</td><td>B6D2F1</td><td>68</td><td>F</td><td>5.946</td><td><center>79.59</center></td><td>0.366</td><td>0.609</td><td>0.025</td><td>1.54</td><td>0.9</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>11</td><td>S273F1</td><td>B6D2F1</td><td>182</td><td>F</td><td>6.343</td><td><center>56.54</center></td><td>0.389</td><td>0.584</td><td>0.027</td><td>1.68</td><td>0.93</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>12</td><td>S233F1</td><td>BXD1</td><td>58</td><td>F</td><td>5.693</td><td><center>61.85</center></td><td>0.427</td><td>0.548</td><td>0.025</td><td>1.65</td><td>0.81</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>13</td><td>S280F1</td><td>BXD1</td><td>396</td><td>F</td><td>8.435</td><td><center>57.1</center></td><td>0.369</td><td>0.601</td><td>0.03</td><td>1.53</td><td>0.94</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>14</td><td>S342F1</td><td>BXD1</td><td>139</td><td>F</td><td>8.106</td><td><center>52.79</center></td><td>0.377</td><td>0.596</td><td>0.027</td><td>1.33</td><td>0.86</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>15</td><td>UT701F1</td><td>BXD2</td><td>142</td><td>F</td><td>3.502</td><td><center>49.39</center></td><td>0.316</td><td>0.661</td><td>0.024</td><td>1.71</td><td>0.82</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>16</td><td>S011F1</td><td>BXD2</td><td>64</td><td>M</td><td>9.868</td><td><center>111.34</center></td><td>0.356</td><td>0.623</td><td>0.02</td><td>1.65</td><td>0.9</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>17</td><td>S340F1</td><td>BXD2</td><td>361</td><td>F</td><td>8.769</td><td><center>51.87</center></td><td>0.395</td><td>0.578</td><td>0.027</td><td>1.74</td><td>0.83</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>18</td><td>UT744</td><td>BXD5</td><td>56</td><td>F</td><td>2.927</td><td><center>55.02</center></td><td>0.369</td><td>0.609</td><td>0.021</td><td>1.6</td><td>0.95</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>19</td><td>UT728F1</td><td>BXD5</td><td>71</td><td>M</td><td>1.94</td><td><center>60.54</center></td><td>0.355</td><td>0.623</td><td>0.023</td><td>1.46</td><td>0.86</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>20</td><td>UT746F1</td><td>BXD5 </td><td>71</td><td>M</td><td>5.451</td><td><center>51.81</center></td><td>0.279</td><td>0.701</td><td>0.02</td><td>1.54</td><td>0.78</td><td>Ts</td></tr>
<tr bgcolor="#eeeeee"><td>21</td><td>S378F1</td><td>BXD6</td><td>61</td><td>F</td><td>11.907</td><td><center>64.64</center></td><td>0.334</td><td>0.64</td><td>0.026</td><td>2.27</td><td>1.02</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>22</td><td>S167F1</td><td>BXD8</td><td>72</td><td>F</td><td>5.004</td><td><center>67.36</center></td><td>0.397</td><td>0.576</td><td>0.027</td><td>1.26</td><td>0.78</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>23</td><td>S343F1</td><td>BXD8</td><td>143</td><td>F</td><td>8.388</td><td><center>108.64</center></td><td>0.223</td><td>0.751</td><td>0.026</td><td>1.44</td><td>0.82</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>24</td><td>S193F1</td><td>BXD9</td><td>432</td><td>F</td><td>4.356</td><td><center>65.64</center></td><td>0.433</td><td>0.543</td><td>0.024</td><td>2.42</td><td>1.06</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>25</td><td>S270F1</td><td>BXD9</td><td>173</td><td>F</td><td>6.365</td><td><center>58.9</center></td><td>0.388</td><td>0.584</td><td>0.028</td><td>1.95</td><td>0.97</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>26</td><td>S009F1</td><td>BXD9</td><td>79</td><td>M</td><td>5.54</td><td><center>108.74</center></td><td>0.419</td><td>0.564</td><td>0.017</td><td>1.49</td><td>0.87</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>27</td><td>S194F1</td><td>BXD11</td><td>441</td><td>F</td><td>5.918</td><td><center>60.19</center></td><td>0.41</td><td>0.564</td><td>0.026</td><td>2.54</td><td>1.08</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>28</td><td>S234F1</td><td>BXD11</td><td>51</td><td>F</td><td>13.033</td><td><center>51.65</center></td><td>0.34</td><td>0.631</td><td>0.028</td><td>1.47</td><td>0.84</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>29</td><td>UT745F1</td><td>BXD11</td><td>97</td><td>F</td><td>3.28</td><td><center>71.75</center></td><td>0.314</td><td>0.666</td><td>0.021</td><td>1.98</td><td>1.02</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>30</td><td>S281F1</td><td>BXD12</td><td>413</td><td>F</td><td>6.338</td><td><center>57.37</center></td><td>0.411</td><td>0.563</td><td>0.025</td><td>1.89</td><td>0.94</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>31</td><td>S607F1</td><td>BXD12</td><td>178</td><td>M</td><td>4.064</td><td><center>104.51</center></td><td>0.357</td><td>0.619</td><td>0.024</td><td>1.73</td><td>0.81</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>32</td><td>UT748F1</td><td>BXD13</td><td>86</td><td>F</td><td>1.67</td><td><center>73.3</center></td><td>0.394</td><td>0.585</td><td>0.021</td><td>1.72</td><td>0.96</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>33</td><td>S195F1</td><td>BXD14</td><td>412</td><td>F</td><td>5.228</td><td><center>63.85</center></td><td>0.398</td><td>0.574</td><td>0.028</td><td>1.82</td><td>1.06</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>34</td><td>UT705F1</td><td>BXD14</td><td>190</td><td>F</td><td>4.838</td><td><center>41.24</center></td><td>0.329</td><td>0.651</td><td>0.02</td><td>1.89</td><td>1.76</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>35</td><td>UT706F1</td><td>BXD14</td><td>134</td><td>F</td><td>9.609</td><td><center>42.32</center></td><td>0.213</td><td>0.77</td><td>0.017</td><td>1.42</td><td>1.02</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>36</td><td>S382F1</td><td>BXD16</td><td>354</td><td>F</td><td>15.561</td><td><center>59.63</center></td><td>0.307</td><td>0.667</td><td>0.027</td><td>2.06</td><td>0.98</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>37</td><td>S334bF1</td><td>BXD18</td><td>57</td><td>F</td><td>13.787</td><td><center>52.44</center></td><td>0.301</td><td>0.674</td><td>0.025</td><td>1.84</td><td>0.94</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>38</td><td>S362F2</td><td>BXD18</td><td>376</td><td>F</td><td>7.121</td><td><center>76.92</center></td><td>0.368</td><td>0.606</td><td>0.026</td><td>1.77</td><td>0.88</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>39</td><td>S606F1</td><td>BXD18</td><td>200</td><td>M</td><td>4.381</td><td><center>57.38</center></td><td>0.427</td><td>0.542</td><td>0.031</td><td>1.56</td><td>0.9</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>40</td><td>S236F1</td><td>BXD19</td><td>56</td><td>F</td><td>4.935</td><td><center>59.44</center></td><td>0.374</td><td>0.599</td><td>0.026</td><td>1.29</td><td>0.84</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>41</td><td>S271F1</td><td>BXD19</td><td>163</td><td>F</td><td>4.705</td><td><center>64.74</center></td><td>0.425</td><td>0.546</td><td>0.029</td><td>1.68</td><td>0.84</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>42</td><td>UT743F1</td><td>BXD21</td><td>64</td><td>F</td><td>2.996</td><td><center>49.56</center></td><td>0.391</td><td>0.587</td><td>0.022</td><td>1.12</td><td>0.83</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>43</td><td>UT740F1</td><td>BXD21 </td><td>67</td><td>F</td><td>5.069</td><td><center>49.3</center></td><td>0.288</td><td>0.691</td><td>0.021</td><td>1.82</td><td>0.87</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>44</td><td>S120F2</td><td>BXD21</td><td>236</td><td>M</td><td>4.765</td><td><center>51.11</center></td><td>0.432</td><td>0.543</td><td>0.025</td><td>1.82</td><td>0.87</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>45</td><td>S170F1</td><td>BXD22</td><td>176</td><td>F</td><td>5.278</td><td><center>72.7</center></td><td>0.39</td><td>0.582</td><td>0.028</td><td>1.45</td><td>0.8</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>46</td><td>S383F1</td><td>BXD22</td><td>363</td><td>F</td><td>6.689</td><td><center>53.68</center></td><td>0.403</td><td>0.57</td><td>0.028</td><td>1.94</td><td>0.93</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>47</td><td>UT815F1</td><td>BXD23</td><td>88</td><td>F</td><td>4.964</td><td><center>50.33</center></td><td>0.31</td><td>0.669</td><td>0.02</td><td>1.53</td><td>0.75</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>48</td><td>S283F1</td><td>BXD24</td><td>394</td><td>F</td><td>5.714</td><td><center>52.6</center></td><td>0.421</td><td>0.552</td><td>0.027</td><td>1.66</td><td>0.85</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>49</td><td>S384F1</td><td>BXD25</td><td>355</td><td>F</td><td>4.931</td><td><center>55.46</center></td><td>0.45</td><td>0.527</td><td>0.024</td><td>2</td><td>0.91</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>50</td><td>S373F1</td><td>BXD25</td><td>74</td><td>F</td><td>3.81</td><td><center>55.67</center></td><td>0.472</td><td>0.504</td><td>0.024</td><td>1.49</td><td>0.76</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>51</td><td>S376F2</td><td>BXD25</td><td>198</td><td>F</td><td>9.208</td><td><center>46.29</center></td><td>0.429</td><td>0.546</td><td>0.025</td><td>2.18</td><td>0.83</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>52</td><td>S532F1</td><td>BXD25</td><td>90</td><td>F</td><td>9.489</td><td><center>47.05</center></td><td>0.406</td><td>0.567</td><td>0.027</td><td>1.64</td><td>0.84</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>53</td><td>S197F1</td><td>BXD28</td><td>427</td><td>F</td><td>7.854</td><td><center>57.94</center></td><td>0.365</td><td>0.609</td><td>0.026</td><td>2.42</td><td>1.14</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>54</td><td>S171F1</td><td>BXD28</td><td>192</td><td>F</td><td>15.407</td><td><center>59.24</center></td><td>0.321</td><td>0.653</td><td>0.026</td><td>1.37</td><td>0.82</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>55</td><td>S381F1</td><td>BXD28</td><td>46</td><td>F</td><td>4.924</td><td><center>57.61</center></td><td>0.439</td><td>0.535</td><td>0.026</td><td>1.97</td><td>0.93</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>56</td><td>S284F1</td><td>BXD29</td><td>416</td><td>F</td><td>5.16</td><td><center>54.1</center></td><td>0.447</td><td>0.53</td><td>0.023</td><td>2.61</td><td>1.19</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>57</td><td>S344F1</td><td>BXD31</td><td>139</td><td>F</td><td>7.434</td><td><center>60.53</center></td><td>0.383</td><td>0.592</td><td>0.026</td><td>1.24</td><td>0.8</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>58</td><td>S198F1</td><td>BXD31</td><td>98</td><td>F</td><td>3.634</td><td><center>76.61</center></td><td>0.414</td><td>0.558</td><td>0.028</td><td>1.73</td><td>0.97</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>59</td><td>S336bF1</td><td>BXD31</td><td>70</td><td>F</td><td>15.326</td><td><center>49.99</center></td><td>0.295</td><td>0.681</td><td>0.024</td><td>1.41</td><td>0.85</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>60</td><td>S534F2</td><td>BXD31</td><td>262</td><td>F</td><td>8.057</td><td><center>52.88</center></td><td>0.412</td><td>0.561</td><td>0.026</td><td>1.74</td><td>0.9</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>61</td><td>S272F1</td><td>BXD32</td><td>178</td><td>F</td><td>7.488</td><td><center>76.4</center></td><td>0.34</td><td>0.635</td><td>0.025</td><td>1.69</td><td>0.87</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>62</td><td>S341F2</td><td>BXD32</td><td>365</td><td>F</td><td>7.82</td><td><center>56.4</center></td><td>0.375</td><td>0.598</td><td>0.027</td><td>1.66</td><td>0.83</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>63</td><td>Z621F1</td><td>BXD32</td><td>218</td><td>M</td><td>2.227</td><td><center>54.86</center></td><td>0.467</td><td>0.507</td><td>0.026</td><td>2</td><td>1.6</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>64</td><td>Z633F1</td><td>BXD33</td><td>124</td><td>F</td><td>1.515</td><td><center>75.52</center></td><td>0.469</td><td>0.506</td><td>0.025</td><td>2.21</td><td>1.13</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>65</td><td>UT704F1</td><td>BXD33</td><td>184</td><td>F</td><td>4.242</td><td><center>47.71</center></td><td>0.339</td><td>0.642</td><td>0.019</td><td>2.19</td><td>0.97</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>66</td><td>Z632F1</td><td>BXD33</td><td>124</td><td>M</td><td>2.446</td><td><center>64.45</center></td><td>0.438</td><td>0.538</td><td>0.024</td><td>3.22</td><td>1.59</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>67</td><td>UT747F1</td><td>BXD38</td><td>69</td><td>F</td><td>2.111</td><td><center>61.16</center></td><td>0.404</td><td>0.575</td><td>0.021</td><td>1.67</td><td>0.78</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>68</td><td>UT780</td><td>BXD38 </td><td>55</td><td>F</td><td>5.97</td><td><center>47.19</center></td><td>0.297</td><td>0.683</td><td>0.02</td><td>1.45</td><td>0.81</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>69</td><td>UT749F1</td><td>BXD38</td><td>69</td><td>M</td><td>1.15</td><td><center>84.52</center></td><td>0.435</td><td>0.544</td><td>0.021</td><td>1.48</td><td>0.82</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>70</td><td>S598F1</td><td>BXD39</td><td>119</td><td>F</td><td>3.619</td><td><center>117.44</center></td><td>0.308</td><td>0.662</td><td>0.03</td><td>1.56</td><td>0.73</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>71</td><td>S603-IFI</td><td>BXD40</td><td>66</td><td>M</td><td>5.426</td><td><center>83.22</center></td><td>0.381</td><td>0.594</td><td>0.025</td><td>1.42</td><td>0.74</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>72</td><td>Z640F1</td><td>BXD42</td><td>109</td><td>M</td><td>1.935</td><td><center>60.72</center></td><td>0.444</td><td>0.529</td><td>0.027</td><td>1.92</td><td>0.96</td><td>DP</td></tr>
<tr bgcolor="#eeeeee"><td>73</td><td>UT767F1</td><td>BXD67</td><td>57</td><td>F</td><td>1.688</td><td><center>58.3</center></td><td>0.403</td><td>0.575</td><td>0.022</td><td>1.95</td><td>0.82</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>74</td><td>S536F1</td><td>BXD67</td><td>79</td><td>F</td><td>3.886</td><td><center>98.34</center></td><td>0.358</td><td>0.616</td><td>0.026</td><td>1.65</td><td>0.92</td><td>TS</td></tr>
<tr bgcolor="#eeeeee"><td>75</td><td>UT768F1</td><td>BXD68</td><td>276</td><td>M</td><td>2.627</td><td><center>79.2</center></td><td>0.32</td><td>0.659</td><td>0.02</td><td>1.69</td><td>1.07</td><td>TS</td></tr></table>
</td>
</tr>
</table>
</Blockquote>
<P class="subtitle"> How to download these data:</P>
<Blockquote><P>
All standard Affymetrix file types (DAT, CEL, RPT, CHP, TXT) can be downloaded for this data set by selecting the strain names in the table above and then selecting the appropriate file, or <A HREF="http://www.genenetwork.org/array_data/U74Av2/Transform/U74Av2_PDNN_Nov05.xls" class="fs14">download</A> the particular transform in an Excel work book with both individual arrays and strain means and SEMs. Please refer to the <A HREF="http://www.genenetwork.org/conditionsofUse.html" target="_blank" class="fs14">Usage Conditions and Limitations</A> page and the <A HREF="http://www.genenetwork.org/reference.html" target="_blank" class="fs14">References</A> page for background on appropriate use and citations of these data.
</P></Blockquote>
<P class="subtitle"> About the samples used to generate these data:</P>
<Blockquote><P>
Each array was hybridized with labeled cRNA generated from a pool of three brains from adult animals usually of the same age and always of the same sex. The brain region included most of the forebrain and midbrain, bilaterally. However, the sample excluded the olfactory bulbs, retinas, or the posterior pituitary (all formally part of the forebrain). A total of 75 such pooled samples were arrayed: 58 from females and 17 from males. Animals ranged in age from 56 to 441 days, usually with a balanced design: one pool at approximately 8 weeks, one pool at approximately 20 weeks, and one pool at approximately 1 year. Strain averages of mRNA expression level are therefore typically based on three pooled biological replicate arrays. This data set does not incorporate statistical adjustment for possible effects of age and sex. Users can select the strain symbol in the table above to review details about the specific cases and array processing center (DP = Divyen Patel at Genome Explorations, Inc; TS = Thomas Sutter at University of Memphis). You can also click on the individual symbols (males or females) to view the array image.
</P></Blockquote>
<P class="subtitle"> About the array platform:</P>
<Blockquote><P>
<B>Affymetrix U74Av2 GeneChip:</B> The expression data were generated using 75 U74Av2 arrays. The chromosomal locations of U74Av2 probe sets were determined by <a href="http://genome.ucsc.edu/cgi-bin/hgBlat?command=start&org=mouse" target="_blank" class="fs14">BLAT</A> analysis of concatenated probe sequences using the Mouse Genome Sequencing Consortium March 2005 (mm6) assembly. This BLAT analysis is performed periodically by Yanhua Qu as each new build of the mouse genome is released. We thank Yan Cui (UTHSC) for allowing us to use his Linux cluster to perform this analysis. It is possible to confirm the BLAT alignment results yourself simply by clicking on the <B>Verify</B> link in the Trait Data and Editing Form (right side of the <B>Location</B> line).
</P></Blockquote>
<P class="subtitle"> About data processing:</P>
<Blockquote><B>Probe set data:</B> The expression data were transformed by Yanhua Qu. The original expression values in the Affymetrix CEL files were read into <a href="http://odin.mdacc.tmc.edu/~zhangli/PerfectMatch/" target="_blank" class="fs14">PerfectMatch</a> to generate the normalized PDNN data set.</P>
<P>PDNN values of each array were subsequently normalized to a achieve a mean value of 8 units and a variance of 2 units.</P>
<P>When necessary, we computed the arithmetic mean for technical replicates and treated these as single samples. We then computed the arithmetic mean for the set of 2 to 5 biological replicates for each strain.
</P>
</Blockquote>
<P class="subtitle"> About the array probe set names:</P>
<Blockquote> <P>
Most probe sets on the U74Av2 array consist of a total of 32 probes, divided into 16 perfect match probes and 16 mismatch controls. Each set of these 25-nucleotide-long probes has an identifier code that includes a unique number, an underscore character, and several suffix characters that highlight design features. The most common probe set suffix is <b>at</b>. This code indicates that the probes should hybridize relatively selectively with the complementary anti-sense target (i.e., the complemenary RNA) produced from a single gene. Other codes include:</P>
<li> <b>f_at (sequence family)</b>: Some probes in this probe set will hybridize to identical and/or slightly different sequences of related gene transcripts.</li>
<li><b>s_at (similarity constraint)</b>: All Probes in this probe set target common sequences found in transcripts from several genes. </li>
<li> <b>g_at (common groups)</b>: Some probes in this set target identical sequences in multiple genes and some target unique sequences in the intended target gene.</li>
<li> <b>r_at (rules dropped)</b>: Probe sets for which it was not possible to pick a full set of unique probes using the Affymetrix probe selection rules. Probes were picked after dropping some of the selection rules.</li>
<li> <b>i_at (incomplete)</b>: Designates probe sets for which there are fewer than the standard numbers of unique probes specified in the design (16 perfect match for the U74Av2).</li>
<li> <b>st (sense target)</b>: Designates a sense target; almost always generated in error.</li>
<P>Descriptions for the probe set extensions were taken from the Affymetrix<a href="./dbdoc/data_analysis_fundamentals_manual.pdf" target="_blank" class="fs14"> GeneChip Expression Analysis Fundamentals</a>.
</P></Blockquote>
<P class="subtitle"> Data source acknowledgment:</P>
<Blockquote><P>Data were generated with funds to RWW from the Dunavant Chair of
Excellence, University of Tennessee Health Science Center, Department
of Pediatrics. The majority of arrays were processed at <a href="http://www.genomeexplorations.com" target="_blank" class="fs14">Genome Explorations</A> by Dr. Divyen Patel. We thank Guomin Zhou for generating advanced intercross stock used to produce most of the new BXD RI strains.
</P></Blockquote>
<P class="subtitle"> Information about this text file:</P>
<Blockquote><P>This text file originally generated by RWW, YHQ, December 2003. Updated by YHQ, November, 2005.
</P></Blockquote>
<P></P>
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