10021 | GO:0002027
| IMP | involved_in | regulation of heart rate | 16407510
| Process | 10021 | GO:0003254
| IDA | involved_in | regulation of membrane depolarization | 12750403,16043489
| Process | 10021 | GO:0006812
| IDA | involved_in | monoatomic cation transport | 12750403
| Process | 10021 | GO:0035725
| IMP | involved_in | sodium ion transmembrane transport | 22748890
| Process | 10021 | GO:0042391
| IMP | involved_in | regulation of membrane potential | 22748890
| Process | 10021 | GO:0055117
| IMP | involved_in | regulation of cardiac muscle contraction | 12750403
| Process | 10021 | GO:0071320
| IDA | involved_in | cellular response to cAMP | 12750403,16043489,16407510,22748890
| Process | 10021 | GO:0071321
| IDA | involved_in | cellular response to cGMP | 22748890
| Process | 10021 | GO:0071805
| IDA | involved_in | potassium ion transmembrane transport | 16407510
| Process | 10021 | GO:0071805
| IMP | involved_in | potassium ion transmembrane transport | 22748890
| Process | 10021 | GO:0086015
| IMP | involved_in | SA node cell action potential | 12750403
| Process | 10021 | GO:0086046
| IMP | involved_in | membrane depolarization during SA node cell action potential | 16407510
| Process | 10021 | GO:0086091
| IMP | involved_in | regulation of heart rate by cardiac conduction | 12750403
| Process | 10021 | GO:0098719
| IDA | involved_in | sodium ion import across plasma membrane | 10228147
| Process | 10021 | GO:0098909
| IMP | involved_in | regulation of cardiac muscle cell action potential involved in regulation of contraction | 16407510
| Process | 10021 | GO:1990573
| IDA | involved_in | potassium ion import across plasma membrane | 10228147
| Process |