Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords | 
| 1 | A, C (A, C) | Tubulin alpha-1B chain | polymer | 451 | 50204.4 | 2 | UniProt (P81947) | Bos taurus (domestic cattle) | Alpha-tubulin ubiquitous,Tubulin K-alpha-1,Tubulin alpha-ubiquitous chain | 
| 2 | B, D (B, D) | Tubulin beta-2B chain | polymer | 445 | 49999.9 | 2 | UniProt (Q6B856) | Bos taurus (domestic cattle) | |
| 3 | E (E) | Stathmin-4 | polymer | 142 | 16787.1 | 1 | UniProt (P63043) | Rattus norvegicus (Norway rat) | Stathmin-like protein B3,RB3 | 
| 4 | F (F) | Tubulin--tyrosine ligase | polymer | 384 | 44378.5 | 1 | UniProt (A0A8V0Z8P0) | Gallus gallus (chicken) | |
| 5 | G, P (A, C) | GUANOSINE-5'-TRIPHOSPHATE | non-polymer | 523.2 | 2 | Chemie (GTP) | |||
| 6 | H, L, Q, T, W (A, B, C, D, F) | MAGNESIUM ION | non-polymer | 24.3 | 5 | Chemie (MG) | |||
| 7 | I, J, M, R (A, B, C) | CALCIUM ION | non-polymer | 40.1 | 4 | Chemie (CA) | |||
| 8 | K, S (B, D) | GUANOSINE-5'-DIPHOSPHATE | non-polymer | 443.2 | 2 | Chemie (GDP) | |||
| 9 | N (B) | 2-(N-MORPHOLINO)-ETHANESULFONIC ACID | non-polymer | 195.2 | 1 | Chemie (MES) | |||
| 10 | O (B) | GLYCEROL | non-polymer | 92.1 | 1 | Chemie (GOL) | |||
| 11 | U (D) | (1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.1~10,14~.0~3,5~]hexacosa-10(26),11,13,16,18-pentaen-6-yl 5-{1-[6-({(4R)-2-[(3R)-2,6-dioxopiperidin-3-yl]-1-oxo-2,4-dihydro-1H-isoindol-4-yl}amino)-6-oxohexyl]-1H-1,2,3-triazol-4-yl}pentanoate | non-polymer | 1071.6 | 1 | Chemie (A1ISC) | |||
| 12 | V (F) | PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER | non-polymer | 505.2 | 1 | Chemie (ACP) | |||
| 13 | AA, BA, CA, X, Y... (D, E, F, A, B...) | water | water | 18.0 | 273 | Chemie (HOH) | 
Sequence modifications
E: 5 - 145 (UniProt: P63043)
F: 1 - 378 (UniProt: A0A8V0Z8P0)
| PDB | External Database | Details | 
|---|---|---|
| Met 3 | - | initiating methionine | 
| Ala 4 | - | expression tag | 
| - | Gly 75 | deletion | 
| PDB | External Database | Details | 
|---|---|---|
| - | Ala 53 | deletion | 
| - | Glu 54 | deletion | 
| - | Met 55 | deletion | 
| - | Gln 56 | deletion | 
| - | Gln 57 | deletion | 
| - | Gln 58 | deletion | 
| - | Leu 59 | deletion | 
| - | Leu 60 | deletion | 
| - | Glu 61 | deletion | 
| - | Gly 62 | deletion | 
| - | Asp 63 | deletion | 
| - | Gln 64 | deletion | 
| - | Thr 65 | deletion | 
| - | Leu 66 | deletion | 
| - | Val 67 | deletion | 
| - | Leu 68 | deletion | 
| - | Ala 69 | deletion | 
| - | Ser 70 | deletion | 
| - | Ser 71 | deletion | 
| - | Thr 72 | deletion | 
| - | His 73 | deletion | 
| - | Pro 74 | deletion | 
| - | Glu 75 | deletion | 
| - | Ser 76 | deletion | 
| - | Val 77 | deletion | 
| - | Asp 78 | deletion | 
| - | Ser 79 | deletion | 
| - | Asp 80 | deletion | 
| - | Lys 81 | deletion | 
| - | Asn 82 | deletion | 
| - | His 83 | deletion | 
| - | Gly 84 | deletion | 
| - | Phe 85 | deletion | 
| His 379 | - | expression tag | 
| His 380 | - | expression tag | 
| His 381 | - | expression tag | 
| His 382 | - | expression tag | 
| His 383 | - | expression tag | 
| His 384 | - | expression tag | 
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 6 | 
| Total formula weight | 261574.3 | |
| Non-Polymers* | Number of molecules | 17 | 
| Total formula weight | 4078.7 | |
| All* | Total formula weight | 265653.0 | 











