| 4K4S | A:; E: | POLIOVIRUS POLYMERASE ELONGATION COMPLEX (R3_FORM) |
| 4K4T | A:; E: | POLIOVIRUS POLYMERASE ELONGATION COMPLEX (R4_FORM) |
| 4K4U | A:; E: | POLIOVIRUS POLYMERASE ELONGATION COMPLEX (R5_FORM) |
| 4K4V | A:; E: | POLIOVIRUS POLYMERASE ELONGATION COMPLEX (R5+1_FORM) |
| 4K4W | A:; E: | POLIOVIRUS POLYMERASE ELONGATION COMPLEX (R5+2_FORM) |
| 4NLO | A: | POLIOVIRUS POLYMERASE - C290I LOOP MUTANT |
| 4NLP | A: | POLIOVIRUS POLYMERASE - C290V LOOP MUTANT |
| 4NLQ | A: | POLIOVIRUS POLYMERASE - C290F LOOP MUTANT |
| 4NLR | A: | POLIOVIRUS POLYMERASE - C290S LOOP MUTANT |
| 4NLS | A: | POLIOVIRUS POLYMERASE - S288A LOOP MUTANT |
| 4NLT | A: | POLIOVIRUS POLYMERASE - S291P LOOP MUTANT |
| 4NLU | A: | POLIOVIRUS POLYMERASE - G289A LOOP MUTANT |
| 4NLV | A: | POLIOVIRUS POLYMERASE - G289A/C290F LOOP MUTANT |
| 4NLW | A: | POLIOVIRUS POLYMERASE - G289A/C290I LOOP MUTANT |
| 4NLX | A: | POLIOVIRUS POLYMERASE - G289A/C290V LOOP MUTANT |
| 4NLY | A: | POLIOVIRUS POLYMERASE - C290E LOOP MUTANT |
)
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