6UE9
Structure of tetrameric sIgA complex (Class 2)
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, E, F, G... (A, B, F, G, E...) | Immunoglobulin heavy constant alpha 2 | polymer | 245 | 26682.1 | 8 | UniProt (P01877) Pfam (PF00047) Pfam (PF07654) | Homo sapiens (Human) | Ig alpha-2 chain C region,Ig alpha-2 chain C region BUT,Ig alpha-2 chain C region LAN |
| 2 | C (C) | Polymeric immunoglobulin receptor | polymer | 591 | 65154.1 | 1 | UniProt (P01833) Pfam (PF07686) | Homo sapiens (Human) | Poly-Ig receptor,Hepatocellular carcinoma-associated protein TB6 |
| 3 | D (D) | Immunoglobulin J chain | polymer | 137 | 15611.5 | 1 | UniProt (P01591) Pfam (PF15097) | Homo sapiens (Human) | Joining chain of multimeric IgA and IgM |
| 4 | K (I) | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | branched | 424.4 | 1 | In PDB GlyTouCan (G42666HT) | |||
| 5 | L (J) | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose | branched | 586.5 | 1 | In PDB GlyTouCan (G15407YE) | |||
| 6 | M, N, O, P, Q... (A, B, C, F, G) | 2-acetamido-2-deoxy-beta-D-glucopyranose | non-polymer | 221.2 | 7 | Chemie (NAG) |
Sequence modifications
A, B, F, G, E, H, K, L: 242 - 472 (UniProt: P01877)
C: 1 - 585 (UniProt: P01833)
| PDB | External Database | Details |
|---|---|---|
| Asp 228 | - | expression tag |
| Tyr 229 | - | expression tag |
| Lys 230 | - | expression tag |
| Asp 231 | - | expression tag |
| Asp 232 | - | expression tag |
| Asp 233 | - | expression tag |
| Asp 234 | - | expression tag |
| Lys 235 | - | expression tag |
| Leu 236 | - | expression tag |
| Val 237 | - | expression tag |
| Pro 238 | - | expression tag |
| Arg 239 | - | expression tag |
| Gly 240 | - | expression tag |
| Ser 241 | - | expression tag |
| Leu 451 | Met 319 | conflict |
| PDB | External Database | Details |
|---|---|---|
| His 586 | - | expression tag |
| His 587 | - | expression tag |
| His 588 | - | expression tag |
| His 589 | - | expression tag |
| His 590 | - | expression tag |
| His 591 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 10 |
| Total formula weight | 294222.7 | |
| Branched | Number of molecules | 2 |
| Total formula weight | 1010.9 | |
| Non-Polymers* | Number of molecules | 7 |
| Total formula weight | 1548.5 | |
| All* | Total formula weight | 296782.1 |
