Temperature value vs. resolution: Difference between revisions

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In brief, the ''temperature value'' (also called ''B factor'') for an atom in a [[X-ray crystallography|crystallographic]] model is a measure of the uncertainty of the position of that atom. (For more, see [[Temperature value]].) The [[resolution]] is an average measure of the uncertainty for all atoms in the model. Results from a very small sample, below, suggest that the average temperature value is positively correlated with the resolution.
In brief, the ''temperature value'' (also called ''B factor'') for an atom in a [[X-ray crystallography|crystallographic]] model is a measure of the uncertainty of the position of that atom. (For more, see [[Temperature value]].) The [[resolution]] is an average measure of the uncertainty for all atoms in the model. Results (below) from a very small sample suggest that the average temperature values of models are positively correlated with their resolutions.
 
See also [[Temperature color schemes]].


==Summary==
==Summary==
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! colspan="3"|Averages of Temperature Values<br>N = 7-8
! colspan="3"|Averages of Temperature Values<br>N = 7-8
|-
|-
! Min !! Average !! Max
! Min !! Average<ref>Average, over 7-8 models, of the average values per model.</ref> !! Max
|-
|-
| 1.4 &Aring; || 6 || 20 || 74
| 1.4 &Aring; || 6 || 20 || 77
|-
|-
| 2.0 &Aring; || 12 || 30 || 66
| 2.0 &Aring; || 12 || 30 || 66
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| 3.5 &Aring; || 18 || 62 || 169
| 3.5 &Aring; || 18 || 62 || 169
|}
|}
<references />


==1.4 &Aring;ngstroms Resolution==
==1.4 &Aring;ngstroms Resolution==
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| [[403d]] || 1998 || 0.242 || 0.316 || 6 || 25 || 69 || DNA
| [[403d]] || 1998 || 0.242 || 0.316 || 6 || 25 || 69 || DNA
|-
|-
| [[2a4x]] || 2005 || 0.222 || 0.264 || 6 || 17 || 64 || Excluding ligand<ref>A ligand (29 atoms; 1.2% of all 2,352 atoms) had an average temperature of 80.</ref>
| [[2a4x]] || 2005 || 0.222 || 0.264 || 6 || 18 || 84 || <ref>A ligand (29 atoms; 1.2% of all 2,352 atoms) had an average temperature of 80. The maximum temperature of non-ligand atoms was 64.</ref>
|}
|}
</div>
</div>
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| Min || 2-7 || 5.6
| Min || 2-7 || 5.6
|-
|-
| Av || 14-31 || 20.3
| Av || 14-31 || 20.4
|-
|-
| Max || 59-104 || 73.9
| Max || 59-104 || 76.7
|}
|}
</div>
</div>
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|+ SUMMARY<br>Temperature values<br>for [[resolution]] 3.5 &Aring;
|+ SUMMARY<br>Temperature values<br>for [[resolution]] 3.5 &Aring;
|-
|-
! Column !! Range<ref name="xo">Excludes rows designated as outliers.</ref> !! Average<ref name="xo" /><br>N=8
! Column !! Range !! Average<br>N=8
|-
|-
| Min || 0-64 || 18.3
| Min || 0-64 || 18.3
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