<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><!--StartFragment--><p class="MsoNormal"><span style="mso-bidi-font-size:11.0pt;line-height:150%">Dear MMB Users,</span></p><div>I have now posted MMB 2.11 for OSX, Windows, and Linux. The following is from the "What's New" section of the Reference Guide:</div><p class="MsoNormal"><span style="mso-bidi-font-size:11.0pt;line-height:150%">In
release 2.11 the length units are Ångströms rather than nanometers,
consistent with molmodel’s conventions.<span style="mso-spacerun: yes">
</span>This makes it easier to relate various stiffnesses, energies, and other
physical quantities. I have created the </span><span style="mso-bidi-font-size:
11.0pt;line-height:150%;font-family:"Courier New"">rootMobilizer</span><span style="mso-bidi-font-size:11.0pt;line-height:150%"> command, which for the
first time allows you to connect a chain to ground using a Weld mobilizer
(rather than the default Free) – this reduces the degrees of freedom of the
system and saves compute time, for the often-found situation in which one or
more chains are fixed to ground. There is also now a </span><span style="mso-bidi-font-size:11.0pt;line-height:150%;font-family:"Courier New"">constrainChainRigidSegments</span><span style="mso-bidi-font-size:11.0pt;line-height:150%"> command, which constrains
all rigid segments in a chain either to ground or to a specified residue in the
same chain (permitting center of mass motions).<span style="mso-spacerun:
yes"> </span>One application of this is to flexibilize an interface and allow
(or not allow) center of mass motions, e.g. to equilibrate clashes on that
interface. <o:p></o:p></span></p><p class="MsoNormal"><span style="mso-bidi-font-size:11.0pt;line-height:150%"><span class="Apple-style-span" style="line-height: normal; ">I welcome comments on the release.</span></span></p><p class="MsoNormal">Happy modeling!</p><div>Sam</div><p class="MsoNormal"><span style="mso-bidi-font-size:11.0pt;line-height:150%"><br></span></p><p class="MsoNormal"><span style="mso-bidi-font-size:11.0pt;line-height:150%"><br></span></p>
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