┌───────────────────── Escherichia coli B354   
                        ┌─────────┴─────────── Escherichia coli TA280   
              ┌─────────┴───────────────────── Escherichia coli SMS-3-5   
    ┌─────────┴┬───────────────────── Escherichia coli H299   
┌───┤          └─ Escherichia coli MS 21-1   
│   └┬──────────────────────────────── Escherichia coli FVEC1412 (2)  
│    └──────────┬─ Escherichia coli 042 (1)  
│               └────────────────────┬─────────────────────────────── Escherichia coli TA143   
│                                    └───────────────────── Escherichia coli MS 69-1   
│                                        ┌─ Escherichia coli 2362-75 (15)  
│                                       ┌┴───────────────────── Escherichia coli APEC O1 (6)  
┤                                      ┌┴────────── Escherichia coli MS 185-1   
│                 ┌────────────────────┴─────────── Escherichia coli ED1a (1)  
│                ┌┴─ Escherichia coli M605   
│      ┌─────────┴─────────┬───────────────────── Escherichia coli HS (1)  
│     ┌┤                   └─ Escherichia coli SE15   
│     │└──────────┬──────────────────────────────── Escherichia coli NC101   
│     │           └┬──────────────────────────────── Escherichia coli B185   
└─────┤            └─────────┬─────────── Escherichia coli 101-1   
      │                      └─ Escherichia coli B str. REL606 (4)  
      │           ┌───────────────────── Escherichia coli 1044A (25)  
      │┌──────────┴─────────── Escherichia coli M718   
      └┤┌─ Escherichia coli IAI39 (1)  
       ││           ┌─ Escherichia coli B088 (16)  
       └┤          ┌┴────────── Escherichia coli E22 (1)  
        │         ┌┴─────────── Escherichia coli O111:H- str. 11128 (1)  
        └─────────┤           ┌─────────── fig|1040638.4.peg.5044 O104:H4 str. LB226692 (4)  
                  │          ┌┴─────────── Escherichia coli B7A (1)  
                  └┬─────────┴─ Escherichia coli MS 145-7   
                   └──────────┬───────────────────── Escherichia coli EC4100B   
                              └┬─ Escherichia coli MS 124-1 (1)  
                               └┬─────────── Escherichia coli 53638 (1)  
                                └──────────┬───────────────────── Escherichia coli ATCC 8739 (1)  
                                           └─ Escherichia coli K12 (12)  
  
Potassium-transporting ATPase B chain (EC 3.6.3.12) (TC 3.A.3.7.1) (33)
Others (1)