6HTB
Yeast 20S proteasome with human beta2c (S171G)
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords | 
| 1 | A, O (A, O)  | Proteasome subunit alpha type-2 | polymer | 250 | 27191.8 | 2 | UniProt (P23639) Pfam (PF10584) Pfam (PF00227)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Macropain subunit Y7,Multicatalytic endopeptidase complex subunit Y7,Proteasome component Y7,Proteinase YSCE subunit 7 | 
| 2 | B, P (B, P)  | Proteasome subunit alpha type-3 | polymer | 258 | 28748.2 | 2 | UniProt (P23638) Pfam (PF10584) Pfam (PF00227)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Macropain subunit Y13,Multicatalytic endopeptidase complex subunit Y13,Proteasome component Y13,Proteinase YSCE subunit 13 | 
| 3 | C, Q (C, Q)  | Proteasome subunit alpha type-4 | polymer | 254 | 28478.1 | 2 | UniProt (P40303) Pfam (PF10584) Pfam (PF00227)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Macropain subunit PRE6,Multicatalytic endopeptidase complex subunit PRE6,Proteasome component PRE6,Proteinase YSCE subunit PRE6 | 
| 4 | D, R (D, R)  | Proteasome subunit alpha type-5 | polymer | 260 | 28649.1 | 2 | UniProt (P32379) Pfam (PF10584) Pfam (PF00227)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Macropain subunit PUP2,Multicatalytic endopeptidase complex subunit PUP2,Proteasome component PUP2,Proteinase YSCE subunit PUP2 | 
| 5 | E, S (E, S)  | Proteasome subunit alpha type-6 | polymer | 234 | 25634.0 | 2 | UniProt (P40302) Pfam (PF00227) Pfam (PF10584)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Macropain subunit PRE5,Multicatalytic endopeptidase complex subunit PRE5,Proteasome component PRE5,Proteinase YSCE subunit PRE5 | 
| 6 | F, T (F, T)  | Probable proteasome subunit alpha type-7 | polymer | 288 | 31575.1 | 2 | UniProt (P21242) Pfam (PF10584) Pfam (PF00227)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Macropain subunit C1,Multicatalytic endopeptidase complex subunit C1,Proteasome component C1,Proteinase YSCE subunit 1 | 
| 7 | G, U (G, U)  | Proteasome subunit alpha type-1 | polymer | 252 | 28033.8 | 2 | UniProt (P21243) Pfam (PF10584) Pfam (PF00227)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Macropain subunit C7-alpha,Multicatalytic endopeptidase complex C7,Proteasome component C7-alpha,Proteasome component Y8,Proteinase YSCE subunit 7,SCL1 suppressor protein | 
| 8 | H, V (H, V)  | Proteasome subunit beta type-7 | polymer | 234 | 25292.0 | 2 | UniProt (Q99436) Pfam (PF00227) Pfam (PF12465)  | Homo sapiens (Human) | Macropain chain Z,Multicatalytic endopeptidase complex chain Z,Proteasome subunit Z | 
| 9 | I, W (I, W)  | Proteasome subunit beta type-3 | polymer | 205 | 22627.8 | 2 | UniProt (P25451) Pfam (PF00227)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Macropain subunit PUP3,Multicatalytic endopeptidase complex subunit PUP3,Proteasome component PUP3 | 
| 10 | J, X (J, X)  | Proteasome subunit beta type-4 | polymer | 198 | 22545.7 | 2 | UniProt (P22141) Pfam (PF00227)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Macropain subunit C11,Multicatalytic endopeptidase complex subunit C11,Proteasome component C11,Proteinase YSCE subunit 11 | 
| 11 | K, Y (K, Y)  | Proteasome subunit beta type-5 | polymer | 212 | 23325.2 | 2 | UniProt (P30656) Pfam (PF00227)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Macropain subunit PRE2,Multicatalytic endopeptidase complex subunit PRE2,Proteasome component PRE2,Proteinase YSCE subunit PRE2 | 
| 12 | L, Z (L, Z)  | Proteasome subunit beta type-6 | polymer | 222 | 24883.9 | 2 | UniProt (P23724) Pfam (PF00227)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Multicatalytic endopeptidase complex subunit C5,Proteasome component C5 | 
| 13 | AA, M (M, a)  | Proteasome subunit beta type-7 | polymer | 246 | 27200.9 | 2 | UniProt (P30657) Pfam (PF00227)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Macropain subunit PRE4,Multicatalytic endopeptidase complex subunit PRE4,Proteasome component PRE4,Proteinase YSCE subunit PRE4 | 
| 14 | BA, N (N, b)  | Proteasome subunit beta type-1 | polymer | 196 | 21517.2 | 2 | UniProt (P38624) Pfam (PF00227)  | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) | Macropain subunit PRE3,Multicatalytic endopeptidase complex subunit PRE3,Proteasome component PRE3,Proteinase YSCE subunit PRE3 | 
| 15 | CA, EA, FA, GA, HA... (G, I, K, L, N...)  | MAGNESIUM ION | non-polymer | 24.3 | 8 | Chemie (MG) | |||
| 16 | DA, JA (G, U)  | CHLORIDE ION | non-polymer | 35.5 | 2 | Chemie (CL) | |||
| 17 | AB, BB, CB, DB, EB... (O, P, Q, R, S...)  | water | water | 18.0 | 931 | Chemie (HOH) | 
Sequence modifications
H, V: 1 - 234 (UniProt: Q99436)
| PDB | External Database | Details | 
|---|---|---|
| Gly 171 | Ser 214 | engineered mutation | 
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 28 | 
| Total formula weight | 731405.8 | |
| Non-Polymers* | Number of molecules | 10 | 
| Total formula weight | 265.3 | |
| All* | Total formula weight | 731671.1 | 






