diff --git a/src/mol-plugin/ui/sequence.tsx b/src/mol-plugin/ui/sequence.tsx
index 82cbdd76bee45b604aba4ba7e1903a80ff289975..0f7d6f5bd15ad5ef8618aa879da583ca37f969ef 100644
--- a/src/mol-plugin/ui/sequence.tsx
+++ b/src/mol-plugin/ui/sequence.tsx
@@ -10,7 +10,7 @@ import { PluginUIComponent } from './base';
 import { StateTreeSpine } from '../../mol-state/tree/spine';
 import { PluginStateObject as SO } from '../state/objects';
 import { Sequence } from './sequence/sequence';
-import { Structure, StructureElement, StructureProperties as SP } from '../../mol-model/structure';
+import { Structure, StructureElement, StructureProperties as SP, Unit } from '../../mol-model/structure';
 import { SequenceWrapper } from './sequence/wrapper';
 import { PolymerSequenceWrapper } from './sequence/polymer';
 import { StructureElementSelectionManager } from '../util/structure-element-selection';
@@ -75,7 +75,12 @@ function getChainOptions(structure: Structure, entityId: string) {
         const id = unit.invariantId
         if (seen.has(id)) continue
 
-        let label = `${SP.chain.label_asym_id(l)}: ${SP.chain.auth_asym_id(l)}`
+        let label = ''
+        if (Unit.isAtomic(unit)) {
+            label = `${SP.chain.label_asym_id(l)}: ${SP.chain.auth_asym_id(l)}`
+        } else {
+            label = `${SP.coarse.asym_id(l)}`
+        }
         if (SP.entity.type(l) === 'water') {
             const count = water.get(label) || 1
             water.set(label, count + 1)
diff --git a/src/mol-plugin/ui/sequence/polymer.ts b/src/mol-plugin/ui/sequence/polymer.ts
index 14e8bf64d921a55fe673ebb3e2188ea01587388d..d31ff0c4caef1326ed2016545b6af968f053e1d6 100644
--- a/src/mol-plugin/ui/sequence/polymer.ts
+++ b/src/mol-plugin/ui/sequence/polymer.ts
@@ -72,7 +72,7 @@ export class PolymerSequenceWrapper extends SequenceWrapper<StructureUnit> {
         this.missing = data.unit.model.properties.missingResidues
 
         this.modelNum = data.unit.model.modelNum
-        this.asymId = SP.chain.label_asym_id(l)
+        this.asymId = Unit.isAtomic(data.unit) ? SP.chain.label_asym_id(l) : SP.coarse.asym_id(l)
 
         const missing: number[] = []
         for (let i = 0; i < length; ++i) {