▁version ▁is ▁ 7 . 6 . 2 2 . ▁ ▁Standard ▁Hyper text ▁Transfer ▁Pro tocol ▁( HTTP ) ▁( port ▁ 8 0 ) ▁is ▁used ▁for ▁communication ▁between ▁the ▁user ' s ▁B OIN C ▁client ▁and ▁the ▁Ros etta @ home ▁servers ▁at ▁the ▁University ▁of ▁Washington ; ▁HTTP S ▁( port ▁ 4 4 3 ) ▁is ▁used ▁during ▁password ▁exchange . ▁ ▁Rem ote ▁and ▁local ▁control ▁of ▁the ▁B OIN C ▁client ▁use ▁port ▁ 3 1 4 1 6 ▁and ▁port ▁ 1 0 4 3 , ▁which ▁might ▁need ▁to ▁be ▁specifically ▁un block ed ▁if ▁they ▁are ▁behind ▁a ▁firewall . ▁ ▁Work un its ▁containing ▁data ▁on ▁individual ▁prote ins ▁are ▁distributed ▁from ▁servers ▁located ▁in ▁the ▁Baker ▁lab ▁at ▁the ▁University ▁of ▁Washington ▁to ▁volunte ers ' ▁computers , ▁which ▁then ▁calculate ▁a ▁structure ▁prediction ▁for ▁the ▁assigned ▁protein . ▁ ▁To ▁avoid ▁duplicate ▁structure ▁predictions ▁on ▁a ▁given ▁protein , ▁each ▁work unit ▁is ▁initialized ▁with ▁a ▁random ▁seed ▁number . ▁ ▁This ▁gives ▁each ▁prediction ▁a ▁unique ▁traject ory ▁of ▁descent ▁along ▁the ▁protein ' s ▁energy ▁landscape . ▁ ▁Prote in ▁structure ▁predictions ▁from ▁Ros etta @ home ▁are ▁approxim ations ▁of ▁a ▁global ▁minimum ▁in ▁a ▁given ▁protein ' s ▁energy ▁landscape . ▁ ▁That ▁global ▁minimum ▁represents ▁the ▁most ▁ener get ically ▁favor able ▁con formation ▁of ▁the ▁protein , ▁i . e ., ▁its ▁native ▁state . ▁ ▁A ▁primary ▁feature ▁of ▁the ▁Ros etta