The HELM string
PEPTIDE1{H.E.L.M}|PEPTIDE2{H.E.L.M}$PEPTIDE1,PEPTIDE2,1:pair-4:pair$$$V2.0
is valid HELM according to the webservices.
If I type it into the webeditor it is converted into
PEPTIDE1{H.E.L.M}|PEPTIDE2{H.E.L.M}$$$$V2.0
and the display shows the two disconnected peptide strands with no hydrogen bond.
The HELM string
PEPTIDE1{H.E.L.M}|PEPTIDE2{H.E.L.M}$PEPTIDE1,PEPTIDE2,1:pair-4:pair$$$V2.0
is valid HELM according to the webservices.If I type it into the webeditor it is converted into![image](https://user-images.githubusercontent.com/3986896/45702679-63cb5e80-bb6a-11e8-841b-59a40068cf87.png)
PEPTIDE1{H.E.L.M}|PEPTIDE2{H.E.L.M}$$$$V2.0
and the display shows the two disconnected peptide strands with no hydrogen bond.