2AH2
Trypanosoma cruzi trans-sialidase in complex with 2,3-difluorosialic acid (covalent intermediate)
Replaces: 1S0KEntity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | trans-sialidase | polymer | 648 | 71389.3 | 1 | UniProt (Q26966) | Trypanosoma cruzi | |
| 2 | B (A) | CHLORIDE ION | non-polymer | 35.5 | 1 | Chemie (CL) PubChem (312) | |||
| 3 | C (A) | 5-acetamido-3,5-dideoxy-3-fluoro-D-erythro-alpha-L-manno-non-2-ulopyranosonic acid | non-polymer | 327.3 | 1 | Chemie (FSI) PubChem (23628524) PubChem (23628525) PubChem (150864) PubChem (448471) PubChem (58753593) PubChem (71065668) PubChem (72206646) PubChem (91532921) PubChem (9949281) PubChem (11450242) PubChem (14101566) PubChem (118479993) PubChem (129678999) PubChem (129715278) PubChem (134972939) PubChem (135016585) PubChem (155168392) PubChem (168356717) PubChem (168373736) | |||
| 4 | D, E, F (A) | GLYCEROL | non-polymer | 92.1 | 3 | Chemie (GOL) PubChem (753) | |||
| 5 | G (A) | ISOPROPYL ALCOHOL | non-polymer | 60.1 | 1 | Chemie (IPA) | |||
| 6 | H (A) | water | water | 18.0 | 850 | Chemie (HOH) |
Sequence modifications
A: 1 - 634 (UniProt: Q26966)
| PDB | External Database | Details |
|---|---|---|
| Met -13 | - | cloning artifact |
| Gly -12 | - | cloning artifact |
| Gly -11 | - | cloning artifact |
| Ser -10 | - | cloning artifact |
| His -9 | - | expression tag |
| His -8 | - | expression tag |
| His -7 | - | expression tag |
| His -6 | - | expression tag |
| His -5 | - | expression tag |
| His -4 | - | expression tag |
| Gly -3 | - | cloning artifact |
| Met -2 | - | cloning artifact |
| Ala -1 | - | cloning artifact |
| Ser 0 | - | cloning artifact |
| Phe 58 | Asn 59 | engineered mutation |
| Thr 262 | Ser 263 | SEE REMARK 999 |
| His 476 | Arg 477 | SEE REMARK 999 |
| Leu 484 | Val 485 | SEE REMARK 999 |
| Lys 495 | Ser 496 | engineered mutation |
| Gly 496 | Val 497 | engineered mutation |
| Lys 520 | Glu 521 | engineered mutation |
| Val 558 | Glu 559 | SEE REMARK 999 |
| Gly 593 | Asp 594 | engineered mutation |
| Asp 597 | Ile 598 | engineered mutation |
| Arg 599 | His 600 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 71389.3 | |
| Non-Polymers* | Number of molecules | 6 |
| Total formula weight | 699.1 | |
| All* | Total formula weight | 72088.3 |
