Human Gene ISCU (ENST00000392807.8) from GENCODE V44
  Description: Homo sapiens iron-sulfur cluster assembly enzyme (ISCU), transcript variant 1, mRNA; nuclear gene for mitochondrial product. (from RefSeq NM_014301)
RefSeq Summary (NM_014301): This gene encodes a component of the iron-sulfur (Fe-S) cluster scaffold. Fe-S clusters are cofactors that play a role in the function of a diverse set of enzymes, including those that regulate metabolism, iron homeostasis, and oxidative stress response. Alternative splicing results in transcript variants encoding different protein isoforms that localize either to the cytosol or to the mitochondrion. Mutations in this gene have been found in patients with hereditary myopathy with lactic acidosis. A disease-associated mutation in an intron may activate a cryptic splice site, resulting in the production of a splice variant encoding a putatively non-functional protein. A pseudogene of this gene is present on chromosome 1. [provided by RefSeq, Feb 2016].
Gencode Transcript: ENST00000392807.8
Gencode Gene: ENSG00000136003.16
Transcript (Including UTRs)
   Position: hg38 chr12:108,562,606-108,569,368 Size: 6,763 Total Exon Count: 6 Strand: +
Coding Region
   Position: hg38 chr12:108,564,117-108,568,916 Size: 4,800 Coding Exon Count: 5 

Page IndexSequence and LinksUniProtKB CommentsPrimersMalaCardsCTD
RNA-Seq ExpressionMicroarray ExpressionRNA StructureProtein StructureOther SpeciesGO Annotations
mRNA DescriptionsPathwaysOther NamesMethods
Data last updated at UCSC: 2023-08-18 00:09:47

-  Sequence and Links to Tools and Databases
 
Genomic Sequence (chr12:108,562,606-108,569,368)mRNA (may differ from genome)Protein (142 aa)
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HGNCHPRDLynxMalacardsMGIneXtProt
OMIMPubMedReactomeUniProtKBWikipediaBioGrid CRISPR DB

-  Comments and Description Text from UniProtKB
  ID: ISCU_HUMAN
DESCRIPTION: RecName: Full=Iron-sulfur cluster assembly enzyme ISCU, mitochondrial; AltName: Full=NifU-like N-terminal domain-containing protein; AltName: Full=NifU-like protein; Flags: Precursor;
FUNCTION: Involved in the assembly or repair of the [Fe-S] clusters present in iron-sulfur proteins. Binds iron.
SUBUNIT: Binds NFS1. Interacts with HSCB.
SUBCELLULAR LOCATION: Isoform 1: Mitochondrion.
SUBCELLULAR LOCATION: Isoform 2: Cytoplasm. Nucleus.
TISSUE SPECIFICITY: Detected in heart, liver, skeletal muscle, brain, pancreas, kidney, lung and placenta.
DISEASE: Defects in ISCU are the cause of myopathy with exercise intolerance Swedish type (MEIS) [MIM:255125]; also known as myopathy with deficiency of succinate dehydrogenase and aconitase or myoglobinuria due to abnormal glycolysis or hereditary myopathy with lactic acidosis (HML). This autosomal recessive metabolic disease is characterized by lifelong severe exercise intolerance, in which minor exertion causes fatigue of active muscles, shortness of breath, and cardiac palpitations in association with lactic acidosis. The biochemical phenotype is characterized by a deficiency in mitochondrial iron-sulfur proteins and impaired muscle oxidative metabolism.
SIMILARITY: Belongs to the NifU family.
WEB RESOURCE: Name=GeneReviews; URL="http://www.ncbi.nlm.nih.gov/sites/GeneTests/lab/gene/ISCU";

-  Primer design for this transcript
 

Primer3Plus can design qPCR Primers that straddle exon-exon-junctions, which amplify only cDNA, not genomic DNA.
Click here to load the transcript sequence and exon structure into Primer3Plus

Exonprimer can design one pair of Sanger sequencing primers around every exon, located in non-genic sequence.
Click here to open Exonprimer with this transcript

To design primers for a non-coding sequence, zoom to a region of interest and select from the drop-down menu: View > In External Tools > Primer3


-  MalaCards Disease Associations
  MalaCards Gene Search: ISCU
Diseases sorted by gene-association score: myopathy with lactic acidosis, hereditary* (1250), myopathy with deficiency of iron-sulfur cluster assembly enzyme* (400), myopathy with deficiency of iscu* (100), lactic acidosis (17), infantile cerebellar-retinal degeneration (11), siderosis (8), myopathy (4)
* = Manually curated disease association

-  Comparative Toxicogenomics Database (CTD)
  The following chemicals interact with this gene           more ... click here to view the complete list

-  RNA-Seq Expression Data from GTEx (53 Tissues, 570 Donors)
  Highest median expression: 113.61 RPKM in Adrenal Gland
Total median expression: 2729.78 RPKM



View in GTEx track of Genome Browser    View at GTEx portal     View GTEx Body Map

+  Microarray Expression Data
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-  mRNA Secondary Structure of 3' and 5' UTRs
 
RegionFold EnergyBasesEnergy/Base
Display As
5' UTR -86.90188-0.462 Picture PostScript Text
3' UTR -94.50452-0.209 Picture PostScript Text

The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.

-  Protein Domain and Structure Information
  InterPro Domains: Graphical view of domain structure
IPR011339 - ISC_FeS_clus_asmbl_IscU
IPR002871 - NIF_FeS_clus_asmbl_NifU_N

Pfam Domains:
PF01592 - NifU-like N terminal domain

ModBase Predicted Comparative 3D Structure on Q9H1K1
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-  Orthologous Genes in Other Species
  Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
MouseRatZebrafishD. melanogasterC. elegansS. cerevisiae
Genome BrowserGenome BrowserNo orthologNo orthologNo orthologNo ortholog
Gene Details     
Gene Sorter     
MGIRGD    
Protein SequenceProtein Sequence    
AlignmentAlignment    

-  Gene Ontology (GO) Annotations with Structured Vocabulary
  Molecular Function:
GO:0005506 iron ion binding
GO:0005515 protein binding
GO:0008198 ferrous iron binding
GO:0032947 protein complex scaffold
GO:0036455 iron-sulfur transferase activity
GO:0046872 metal ion binding
GO:0051536 iron-sulfur cluster binding
GO:0051537 2 iron, 2 sulfur cluster binding
GO:0051539 4 iron, 4 sulfur cluster binding

Biological Process:
GO:0006879 cellular iron ion homeostasis
GO:0016226 iron-sulfur cluster assembly
GO:0044281 small molecule metabolic process
GO:0097428 protein maturation by iron-sulfur cluster transfer

Cellular Component:
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0005739 mitochondrion
GO:0005759 mitochondrial matrix
GO:0005829 cytosol


-  Descriptions from all associated GenBank mRNAs
  AK057251 - Homo sapiens cDNA FLJ32689 fis, clone TESTI2000207, highly similar to NifU-like N-terminal domain-containing protein, mitochondrial precursor.
AK022758 - Homo sapiens cDNA FLJ12696 fis, clone NT2RP1000513, highly similar to Human NifU-like protein (hNifU) mRNA.
AK297862 - Homo sapiens cDNA FLJ51257 complete cds, highly similar to NifU-like N-terminal domain-containing protein, mitochondrial precursor.
AY009127 - Homo sapiens ISCU1 (ISCU) mRNA, complete cds, alternatively spliced.
AY009128 - Homo sapiens ISCU2 (ISCU) mRNA, complete cds, alternatively spliced.
EU329002 - Homo sapiens ICSU mRNA, complete cds, alternatively spliced.
BC011906 - Homo sapiens iron-sulfur cluster scaffold homolog (E. coli), mRNA (cDNA clone MGC:20315 IMAGE:4136262), complete cds.
AK293202 - Homo sapiens cDNA FLJ59835 complete cds, highly similar to NifU-like N-terminal domain-containing protein, mitochondrial precursor.
AM393134 - Synthetic construct Homo sapiens clone IMAGE:100002093 for hypothetical protein (NIFUN gene).
BC061903 - Homo sapiens iron-sulfur cluster scaffold homolog (E. coli), mRNA (cDNA clone MGC:74517 IMAGE:4183674), complete cds.
AK000574 - Homo sapiens cDNA FLJ20567 fis, clone REC00767, highly similar to U47101 Human NifU-like protein.
AB528752 - Synthetic construct DNA, clone: pF1KE0144, Homo sapiens ISCU gene for iron-sulfur cluster scaffold homolog, without stop codon, in Flexi system.
DQ896294 - Synthetic construct Homo sapiens clone IMAGE:100010754; FLH193026.01L; RZPDo839B1268D NifU-like N-terminal domain containing (NIFUN) gene, encodes complete protein.
EU176420 - Synthetic construct Homo sapiens clone IMAGE:100006628; FLH264104.01X; RZPDo839D06257D iron-sulfur cluster scaffold homolog (E. coli) (ISCU) gene, encodes complete protein.
KJ906093 - Synthetic construct Homo sapiens clone ccsbBroadEn_15763 ISCU gene, encodes complete protein.
CU687510 - Synthetic construct Homo sapiens gateway clone IMAGE:100021584 5' read ISCU mRNA.
KJ904693 - Synthetic construct Homo sapiens clone ccsbBroadEn_14087 ISCU gene, encodes complete protein.
JD125339 - Sequence 106363 from Patent EP1572962.
BC003522 - Homo sapiens cDNA clone IMAGE:3606787, containing frame-shift errors.
U47101 - Human NifU-like protein (hNifU) mRNA, partial cds.
JD022250 - Sequence 3274 from Patent EP1572962.
JD022661 - Sequence 3685 from Patent EP1572962.
JD032626 - Sequence 13650 from Patent EP1572962.
JD069675 - Sequence 50699 from Patent EP1572962.
JD163360 - Sequence 144384 from Patent EP1572962.
JD209053 - Sequence 190077 from Patent EP1572962.
JD189065 - Sequence 170089 from Patent EP1572962.
JD102682 - Sequence 83706 from Patent EP1572962.
JD069317 - Sequence 50341 from Patent EP1572962.
JD065230 - Sequence 46254 from Patent EP1572962.
JD146974 - Sequence 127998 from Patent EP1572962.
JD531099 - Sequence 512123 from Patent EP1572962.
JD093172 - Sequence 74196 from Patent EP1572962.
JD544392 - Sequence 525416 from Patent EP1572962.

-  Biochemical and Signaling Pathways
  Reactome (by CSHL, EBI, and GO)

Protein Q9H1K1 (Reactome details) participates in the following event(s):

R-HSA-1362416 Frataxin binds iron
R-HSA-1362409 Mitochondrial iron-sulfur cluster biogenesis
R-HSA-1430728 Metabolism

-  Other Names for This Gene
  Alternate Gene Symbols: ENST00000392807.1, ENST00000392807.2, ENST00000392807.3, ENST00000392807.4, ENST00000392807.5, ENST00000392807.6, ENST00000392807.7, ISCU_HUMAN, NIFUN, NM_014301, Q6P713, Q99617, Q9H1K1, Q9H1K2, uc001tnc.1, uc001tnc.2, uc001tnc.3, uc001tnc.4, uc001tnc.5
UCSC ID: ENST00000392807.8
RefSeq Accession: NM_014301
Protein: Q9H1K1 (aka ISCU_HUMAN)
CCDS: CCDS9118.1

-  Methods, Credits, and Use Restrictions
  Click here for details on how this gene model was made and data restrictions if any.