6UXE
Structure of the human mitochondrial desulfurase complex Nfs1-ISCU2(M140I)-ISD11 with E.coli ACP1 at 1.57 A resolution showing flexibility of N terminal end of ISCU2
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords | 
| 1 | A (A)  | Cysteine desulfurase, mitochondrial | polymer | 406 | 45081.6 | 1 | UniProt (Q9Y697) Pfam (PF00266)  | Homo sapiens (Human) | |
| 2 | B (B)  | LYR motif-containing protein 4 | polymer | 91 | 10763.5 | 1 | UniProt (Q9HD34) Pfam (PF05347)  | Homo sapiens (Human) | |
| 3 | C (C)  | Acyl carrier protein | polymer | 77 | 8514.3 | 1 | UniProt (B7MJ81) Pfam (PF00550) UniProt (by SIFTS) (P0A6A8)  | Escherichia coli | ACP | 
| 4 | D (D)  | Iron-sulfur cluster assembly enzyme ISCU, mitochondrial | polymer | 143 | 15666.1 | 1 | UniProt (Q9H1K1) Pfam (PF01592)  | Homo sapiens (Human) | NifU-like N-terminal domain-containing protein,NifU-like protein | 
| 5 | E (A)  | PYRIDOXAL-5'-PHOSPHATE | non-polymer | 247.1 | 1 | Chemie (PLP) | |||
| 6 | CB, CC, F, G, H... (A, D)  | GLYCEROL | non-polymer | 92.1 | 6 | Chemie (GOL) | |||
| 7 | AA, BA, BC, CA, DB... (A, D, B, C)  | 1,2-ETHANEDIOL | non-polymer | 62.1 | 50 | Chemie (EDO) | |||
| 8 | AB, BB, EA, IA, JA... (A, B, C)  | DI(HYDROXYETHYL)ETHER | non-polymer | 106.1 | 11 | Chemie (PEG) | |||
| 9 | W, X (A)  | TETRAETHYLENE GLYCOL | non-polymer | 194.2 | 2 | Chemie (PG4) | |||
| 10 | DA (A)  | 2,5,8,11,14,17-HEXAOXANONADECAN-19-OL | non-polymer | 296.4 | 1 | Chemie (P15) | |||
| 11 | KA (A)  | 2,3-DIHYDROXY-1,4-DITHIOBUTANE | non-polymer | 154.3 | 1 | Chemie (DTT) | |||
| 12 | LA, UA, VA (A)  | TRIETHYLENE GLYCOL | non-polymer | 150.2 | 3 | Chemie (PGE) | |||
| 13 | PB (B)  | {[-(BIS-CARBOXYMETHYL-AMINO)-ETHYL]-CARBOXYMETHYL-AMINO}-ACETIC ACID | non-polymer | 292.2 | 1 | Chemie (EDT) | |||
| 14 | SB (C)  | S-[2-({N-[(2R)-2-hydroxy-3,3-dimethyl-4-(phosphonooxy)butanoyl]-beta-alanyl}amino)ethyl] dodecanethioate | non-polymer | 540.7 | 1 | Chemie (8Q1) | |||
| 15 | TB (C)  | 2-(N-MORPHOLINO)-ETHANESULFONIC ACID | non-polymer | 195.2 | 1 | Chemie (MES) | |||
| 16 | AC (D)  | PENTAETHYLENE GLYCOL | non-polymer | 238.3 | 1 | Chemie (1PE) | |||
| 17 | FC, GC, HC, IC (A, B, C, D)  | water | water | 18.0 | 390 | Chemie (HOH) | 
Sequence modifications
A: 56 - 457 (UniProt: Q9Y697)
B: 1 - 91 (UniProt: Q9HD34)
D: 35 - 167 (UniProt: Q9H1K1)
| PDB | External Database | Details | 
|---|---|---|
| Met 52 | - | initiating methionine | 
| Gly 53 | - | expression tag | 
| Ser 54 | - | expression tag | 
| Ser 55 | - | expression tag | 
| PDB | External Database | Details | 
|---|---|---|
| Ala 11 | Ser 11 | variant | 
| PDB | External Database | Details | 
|---|---|---|
| Met 33 | - | initiating methionine | 
| Ala 34 | - | expression tag | 
| Ile 140 | Met 140 | engineered mutation | 
| Leu 168 | - | expression tag | 
| Glu 169 | - | expression tag | 
| His 170 | - | expression tag | 
| His 171 | - | expression tag | 
| His 172 | - | expression tag | 
| His 173 | - | expression tag | 
| His 174 | - | expression tag | 
| His 175 | - | expression tag | 
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 | 
| Total formula weight | 80025.4 | |
| Non-Polymers* | Number of molecules | 79 | 
| Total formula weight | 7626.4 | |
| All* | Total formula weight | 87651.8 | 






