improve peptide entity-subtype derivation

src/mol-model/structure/model/properties/common.ts

 /**
- * Copyright (c) 2018-2019 mol* contributors, licensed under MIT, See LICENSE file for more info.
+ * Copyright (c) 2018-2021 mol* contributors, licensed under MIT, See LICENSE file for more info.
  *
  * @author Alexander Rose <alexander.rose@weirdbyte.de>
  * @author David Sehnal <david.sehnal@gmail.com>
@@ -14,7 +14,8 @@ export type EntitySubtype = (
     mmCIF_Schema['entity_poly']['type']['T'] |
     mmCIF_Schema['pdbx_entity_branch']['type']['T'] |
     'ion' |
-    'lipid'
+    'lipid' |
+    'peptide-like'
 )
 export const EntitySubtype = Column.Schema.Aliased<EntitySubtype>(Column.Schema.Str(''));
 

src/mol-model/structure/model/types.ts

 /**
- * Copyright (c) 2017-2020 mol* contributors, licensed under MIT, See LICENSE file for more info.
+ * Copyright (c) 2017-2021 mol* contributors, licensed under MIT, See LICENSE file for more info.
  *
  * @author Alexander Rose <alexander.rose@weirdbyte.de>
  * @author David Sehnal <david.sehnal@gmail.com>
@@ -192,7 +192,7 @@ export const ProteinTerminusComponentTypeNames = new Set([
     'L-PEPTIDE NH3 AMINO TERMINUS', 'L-PEPTIDE COOH CARBOXY TERMINUS'
 ]);
 
-/** Chemical component type names for pepdite-like protein */
+/** Chemical component type names for peptide-like protein */
 export const OtherProteinComponentTypeNames = new Set([
     'PEPTIDE LINKING', 'PEPTIDE-LIKE',
 ]);
@@ -416,6 +416,8 @@ export function getEntitySubtype(compId: string, compType: string): EntitySubtyp
         return 'ion';
     } else if (LipidComponentTypeNames.has(compType) || LipidNames.has(compId)) {
         return 'lipid';
+    } else if (OtherProteinComponentTypeNames.has(compType)) {
+        return 'peptide-like';
     } else {
         return 'other';
     }

src/mol-plugin-state/helpers/structure-selection-query.ts

@@ -92,7 +92,7 @@ const polymer = StructureSelectionQuery('Polymer', MS.struct.modifier.union([
         'entity-test': MS.core.logic.and([
             MS.core.rel.eq([MS.ammp('entityType'), 'polymer']),
             MS.core.str.match([
-                MS.re('(polypeptide|cyclic-pseudo-peptide|nucleotide|peptide nucleic acid)', 'i'),
+                MS.re('(polypeptide|cyclic-pseudo-peptide|peptide-like|nucleotide|peptide nucleic acid)', 'i'),
                 MS.ammp('entitySubtype')
             ])
         ])
@@ -122,7 +122,7 @@ const trace = StructureSelectionQuery('Trace', MS.struct.modifier.union([
 const _proteinEntityTest = MS.core.logic.and([
     MS.core.rel.eq([MS.ammp('entityType'), 'polymer']),
     MS.core.str.match([
-        MS.re('(polypeptide|cyclic-pseudo-peptide)', 'i'),
+        MS.re('(polypeptide|cyclic-pseudo-peptide|peptide-like)', 'i'),
         MS.ammp('entitySubtype')
     ])
 ]);