diff --git a/src/mol-script/transpilers/pymol/keywords.ts b/src/mol-script/transpilers/pymol/keywords.ts
index 556544447c69a2dfede314804519d06604051df7..26ef52ef99fab8b397786c535088ce0e75210611 100644
--- a/src/mol-script/transpilers/pymol/keywords.ts
+++ b/src/mol-script/transpilers/pymol/keywords.ts
@@ -18,38 +18,38 @@ const ResDict = {
 
 const Backbone = {
     nucleic: ['P', "O3'", "O5'", "C5'", "C4'", "C3'", 'OP1', 'OP2', 'O3*', 'O5*', 'C5*', 'C4*', 'C3*',
-	      "C2'","C1'","O4'","O2'"],
+	      "C2'", "C1'", "O4'", "O2'"],
     protein: ['C', 'N', 'CA', 'O']
 };
 
 function backboneExpr() {
     return B.struct.combinator.merge([
 	    B.struct.modifier.intersectBy(
-		{ 0: B.struct.generator.atomGroups({
+            { 0: B.struct.generator.atomGroups({
 		    'residue-test': B.core.set.has([
-			B.core.type.set(ResDict.protein),
-			B.ammp('label_comp_id')
-		    ])})
+                    B.core.type.set(ResDict.protein),
+                    B.ammp('label_comp_id')
+		    ]) })
 		  ,
-		  by : B.struct.generator.atomGroups({
+		  by: B.struct.generator.atomGroups({
 		      'atom-test': B.core.set.has([
 			  B.core.type.set(Backbone.protein),
-			  B.ammp('label_atom_id')])})
-		}),
+			  B.ammp('label_atom_id')]) })
+            }),
 	    B.struct.modifier.intersectBy(
-		{ 0: B.struct.generator.atomGroups({
+            { 0: B.struct.generator.atomGroups({
 		    'residue-test': B.core.set.has([
-			B.core.type.set(ResDict.nucleic),
-			B.ammp('label_comp_id')
-		    ])})
+                    B.core.type.set(ResDict.nucleic),
+                    B.ammp('label_comp_id')
+		    ]) })
 		  ,
-		  by : B.struct.generator.atomGroups({
+		  by: B.struct.generator.atomGroups({
 		      'atom-test': B.core.set.has([
 			  B.core.type.set(Backbone.nucleic),
-			  B.ammp('label_atom_id')])})
-		}),
-	])
-    
+			  B.ammp('label_atom_id')]) })
+            }),
+    ]);
+
 }
 
 
@@ -96,15 +96,16 @@ export const keywords: KeywordDict = {
     },
     sidechain: {
         '@desc': 'Polymer non-backbone atoms (new in PyMOL 1.6.1)',
-	abbr:['sc.'],
-	map: () => {
+        abbr: ['sc.'],
+        map: () => {
 	    return B.struct.modifier.exceptBy({
-		'0': B.struct.generator.atomGroups({
+                '0': B.struct.generator.atomGroups({
 		    'residue-test': B.core.set.has([
-			B.core.type.set(ResDict.nucleic.concat(ResDict.protein)),
-			B.ammp('label_comp_id')])}),
-		by: backboneExpr()
-	    })},
+                        B.core.type.set(ResDict.nucleic.concat(ResDict.protein)),
+                        B.ammp('label_comp_id')]) }),
+                by: backboneExpr()
+	    });
+        },
     },
     present: {
         '@desc': 'All atoms with defined coordinates in the current state (used in creating movies)',
@@ -242,7 +243,7 @@ export const keywords: KeywordDict = {
     },
     backbone: {
         '@desc': 'the C, N, CA, and O atoms of a protein and the equivalent atoms in a nucleic acid.',
-	abbr: ['bb.'],
+        abbr: ['bb.'],
         map: () => backboneExpr()
     },
     'bFCLHMz55tjm16c9': {
diff --git a/src/mol-script/transpilers/pymol/properties.ts b/src/mol-script/transpilers/pymol/properties.ts
index 5b405187bc6276885b84d07782f8282ea73814b2..cc3062cbd313795d8e1cbbeafc91707744bbedf2 100644
--- a/src/mol-script/transpilers/pymol/properties.ts
+++ b/src/mol-script/transpilers/pymol/properties.ts
@@ -205,9 +205,9 @@ export const properties: PropertyDict = {
         level: 'atom-test'
     },
     elem: {
-	'@desc': 'str  atomic element symbol string ("X" if undefined)',
-	'@examples': ['elem N'],
-	regex: /[a-zA-Z0-9]{1,3}/, map: x => B.es(x),
-	level: 'atom-test', property: B.acp('elementSymbol')
+        '@desc': 'str  atomic element symbol string ("X" if undefined)',
+        '@examples': ['elem N'],
+        regex: /[a-zA-Z0-9]{1,3}/, map: x => B.es(x),
+        level: 'atom-test', property: B.acp('elementSymbol')
     }
 };