Current Protein Identity：Q26997
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Difference tags compare only the current result set; every original PDB and assembly record remains separate.
Related-Structure Differences
Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.
| PDB Entry | Assembly / Oligomeric State | Construct | Mutations and Modifications | Ligands, Ions and Non-polymers | Experimental Method | Experimental Conditions | Structure Quality |
|---|---|---|---|---|---|---|---|
| 1DBR HYPOXANTHINE GUANINE XANTHINE Deposited 1996-02-13 | Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count |
Chain A
1–230（230 aa）
Chain B
1–230（230 aa）
Chain C
1–230（230 aa）
Chain D
1–230（230 aa）
|
Not recorded | MG MAGNESIUM ION × 4 | X-RAY DIFFRACTION | mmCIF provides none of the parsed conditions | Resolution 2.40 Å |
| 1FSG TOXOPLASMA GONDII HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE COMPLEXED WITH 9-DEAZAGUANINE, ALPHA-D-5-PHOSPHORIBOSYL-1-PYROPHOSPHATE (PRPP) AND TWO MG2+ IONS Deposited 2000-09-08 | Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count |
Chain A
1–230（230 aa）
Chain C
1–230（230 aa）
|
Not recorded | MG MAGNESIUM ION × 8 PRP 1-O-pyrophosphono-5-O-phosphono-alpha-D-ribofuranose × 4 9DG 9-DEAZAGUANINE × 4 | X-RAY DIFFRACTION |
X-ray crystallization conditions
VAPOR DIFFUSION, HANGING DROP；pH 8；277 K；THE PROTEIN (20 mg ml-1) WAS MIXED WITH A SOLUTION CONSISTING OF
30% PEG 4000, 100 MM TRIS.HCL (PH 8.0),
200 MM LI2SO4, and 0.5 % BETA-OCTYLGLUCOPYRANOSIDE.
THE CRYSTAL WAS GROWN IN THE PRESENCE OF
2 MM 9-DEAZAGUANINE, 2 MM PRPP AND 10 MM MGCL2 AT 277 K. THE
CRYSTAL GREW IN 2 DAYS., VAPOR DIFFUSION, HANGING DROP
|
Resolution 1.05 Å R-free 0.154 |
| 1QK3 TOXOPLASMA GONDII HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE GMP COMPLEX Deposited 1999-07-09 | Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count |
Chain A
1–230（230 aa）
Chain B
1–230（230 aa）
Chain C
1–230（230 aa）
Chain D
1–230（230 aa）
|
Not recorded | 5GP GUANOSINE-5'-MONOPHOSPHATE × 4 | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 5；277 K；15% PEG 8000, 100 MM KPO4 (PH 5-6), 0.25% BETA-OCTYLGLUCOPYRANOSIDE, 1 MM GMP, 277 K
|
Resolution 1.65 Å R-free 0.231 |
| 1QK4 TOXOPLASMA GONDII HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE IMP COMPLEX Deposited 1999-07-09 | Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count |
Chain A
1–230（230 aa）
Chain B
1–230（230 aa）
Chain C
1–230（230 aa）
Chain D
1–230（230 aa）
|
Not recorded | IMP INOSINIC ACID × 4 | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 8.5；277 K；30% PEG 4000, 100 MM TRIS (PH 8.5), 200 MM LI2SO4, 0.25 % BETA-OCTYLGLUCOPYRANOSIDE 1 MM IMP, 277 K
|
Resolution 1.90 Å R-free 0.238 |
| 1QK5 TOXOPLASMA GONDII HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE WITH XMP, PYROPHOSPHATE AND TWO MG2+ IONS Deposited 1999-07-09 | Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count |
Chain A
1–230（230 aa）
Chain B
1–230（230 aa）
|
Mutation：YES Mutation：YES | XMP XANTHOSINE-5'-MONOPHOSPHATE × 4 POP PYROPHOSPHATE 2- × 4 MG MAGNESIUM ION × 8 | X-RAY DIFFRACTION |
X-ray crystallization conditions
pH 8.5；277 K；30% PEG 4000, 100 MM TRIS.CL (PH 8.5), 200 MM LI2SO4, 0.25 % BETA-OCTYLGLUCOPYRANOSIDE. THE CRYSTAL WAS GROWN IN THE PRESENCE OF 1 MM XANTHINE, 1 MM PRPP AND 10 MM MGCL2 AT 277 K.
|
Resolution 1.60 Å R-free 0.261 |