AlphaFold predicted structure
ISCU · Q9H1K1

Mean pLDDT
85.2/ 100
Confident
167 residues
Confidence breakdown
- Very high(≥ 90)71%
- Confident(70–90)5%
- Low(50–70)20%
- Very low(< 50)4%
AlphaFold (Jumper et al., 2021) · CC BY 4.0
iron-sulfur cluster assembly enzyme
Annotations refreshed 1 month ago.
Diagnostic Grade (Green)
Acute rhabdomyolysis
BOTH monoallelic and biallelic, autosomal or pseudoautosomalLikely inborn error of metabolism
BOTH monoallelic and biallelic, autosomal or pseudoautosomalMitochondrial disorders
BOTH monoallelic and biallelic, autosomal or pseudoautosomalPossible mitochondrial disorder - nuclear genes
BOTH monoallelic and biallelic, autosomal or pseudoautosomalRhabdomyolysis and metabolic muscle disorders
BIALLELIC, autosomal or pseudoautosomalUndiagnosed metabolic disorders
BOTH monoallelic and biallelic, autosomal or pseudoautosomalArthrogryposis
Childhood onset dystonia, chorea or related movement disorder
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hereditary myopathy with lactic acidosis due to ISCU deficiency
COVID-19
mitochondrial disease
inborn mitochondrial metabolism disorder
open-angle glaucoma
hereditary disease
myopathy
hyperpituitarism
stroke disorder
alcohol drinking
Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.
Iron-sulfur cluster assembly enzyme ISCU
Mitochondrial scaffold protein, of the core iron-sulfur cluster (ISC) assembly complex, that provides the structural architecture on which the [2Fe-2S] clusters are assembled (PubMed:34824239). The core iron-sulfur cluster (ISC) assembly complex is involved in the de novo synthesis of a [2Fe-2S] cluster, the first step of the mitochondrial iron-sulfur protein biogenesis. This process is initiated by the cysteine desulfurase complex (NFS1:LYRM4:NDUFAB1) that produces persulfide which is delivered on the scaffold protein ISCU in a FXN-dependent manner. Then this complex is stabilized by FDX2 which provides reducing equivalents to accomplish the [2Fe-2S] cluster assembly. Finally, the [2Fe-2S] cluster is transferred from ISCU to chaperone proteins, including HSCB, HSPA9 and GLRX5 (Probable) (PubMed:24971490, PubMed:29576242, PubMed:30031876, PubMed:34824239). Exists as two slow interchanging conformational states, a structured (S) and disordered (D) form (PubMed:23940031). May modulate NFS1 desulfurase activity in a zinc-dependent manner (PubMed:30031876). Modulates the interaction between FXN and the cysteine desulfurase complex (PubMed:29576242)
ISCU · Q9H1K1

Mean pLDDT
85.2/ 100
Confident
167 residues
Confidence breakdown
AlphaFold (Jumper et al., 2021) · CC BY 4.0