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CIAO3 cytosolic iron-sulfur assembly component 3 [ Homo sapiens (human) ]

Gene ID: 64428, updated on 7-Apr-2025

Summary

Official Symbol
CIAO3provided by HGNC
Official Full Name
cytosolic iron-sulfur assembly component 3provided by HGNC
Primary source
HGNC:HGNC:14179
See related
Ensembl:ENSG00000103245 MIM:611118; AllianceGenome:HGNC:14179
Gene type
protein coding
RefSeq status
VALIDATED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
PRN; HPRN; IOP1; NAR1; LET1L; NARFL
Summary
Predicted to enable 4 iron, 4 sulfur cluster binding activity and metal ion binding activity. Involved in several processes, including intracellular oxygen homeostasis; iron-sulfur cluster assembly; and response to hypoxia. Part of cytosolic [4Fe-4S] assembly targeting complex. [provided by Alliance of Genome Resources, Apr 2025]
Expression
Ubiquitous expression in kidney (RPKM 7.4), prostate (RPKM 7.1) and 25 other tissues See more
Orthologs
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Genomic context

See CIAO3 in Genome Data Viewer
Location:
16p13.3
Exon count:
12
Annotation release Status Assembly Chr Location
RS_2024_08 current GRCh38.p14 (GCF_000001405.40) 16 NC_000016.10 (729765..740997, complement)
RS_2024_08 current T2T-CHM13v2.0 (GCF_009914755.1) 16 NC_060940.1 (733939..745171, complement)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 16 NC_000016.9 (779765..790997, complement)

Chromosome 16 - NC_000016.10Genomic Context describing neighboring genes Neighboring gene adenine nucleotide translocase lysine methyltransferase Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 6949 Neighboring gene coiled-coil domain containing 78 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 6950 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 6951 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 6952 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 6953 Neighboring gene hydroxyacylglutathione hydrolase like Neighboring gene Sharpr-MPRA regulatory region 977 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr16:790544-791139 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 6956 Neighboring gene H3K4me1 hESC enhancer GRCh37_chr16:800614-801181 Neighboring gene MSLN promoter region Neighboring gene mesothelin Neighboring gene microRNA 662 Neighboring gene mesothelin like

Genomic regions, transcripts, and products

Expression

  • Project title: Tissue-specific circular RNA induction during human fetal development
  • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
  • BioProject: PRJNA270632
  • Publication: PMID 26076956
  • Analysis date: Mon Apr 2 22:54:59 2018

Bibliography

GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Phenotypes

EBI GWAS Catalog

Description
Hundreds of variants clustered in genomic loci and biological pathways affect human height.
EBI GWAS Catalog
Meta-analysis of genome-wide association studies of adult height in East Asians identifies 17 novel loci.
EBI GWAS Catalog

Pathways from PubChem

Interactions

Products Interactant Other Gene Complex Source Pubs Description

General protein information

Preferred Names
cytosolic iron-sulfur assembly component 3
Names
LET1 like/JFP15
cytosolic Fe-S cluster assembly factor NARFL
iron-only hydrogenase-like protein 1
nuclear prelamin A recognition factor like
protein related to Narf

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

  1. NM_001304799.2NP_001291728.1  cytosolic iron-sulfur assembly component 3 isoform 2

    See identical proteins and their annotated locations for NP_001291728.1

    Status: VALIDATED

    Description
    Transcript Variant: This variant (2) contains an alternate exon in its 5' UTR and uses a downstream in-frame start codon, compared to variant 1. The encoded isoform (2) has a shorter N-terminus compared to isoform 1.
    Source sequence(s)
    AY129231, BU741568, DA153375, DB126434
    Consensus CDS
    CCDS76798.1
    UniProtKB/TrEMBL
    B3KPK9
    Related
    ENSP00000444008.1, ENST00000540986.5
    Conserved Domains (2) summary
    smart00902
    Location:316364
    Fe_hyd_SSU; Iron hydrogenase small subunit
    pfam02906
    Location:8303
    Fe_hyd_lg_C; Iron only hydrogenase large subunit, C-terminal domain
  2. NM_022493.3NP_071938.1  cytosolic iron-sulfur assembly component 3 isoform 1

    See identical proteins and their annotated locations for NP_071938.1

    Status: VALIDATED

    Description
    Transcript Variant: This variant (1) encodes the longer isoform (1).
    Source sequence(s)
    AY129231, BU741568, DA153375
    Consensus CDS
    CCDS10425.1
    UniProtKB/Swiss-Prot
    A1L385, B3KTJ3, Q53GC6, Q96S10, Q9H6J8, Q9H6Q4
    Related
    ENSP00000251588.2, ENST00000251588.7
    Conserved Domains (2) summary
    smart00902
    Location:418466
    Fe_hyd_SSU; Iron hydrogenase small subunit
    pfam02906
    Location:112403
    Fe_hyd_lg_C; Iron only hydrogenase large subunit, C-terminal domain

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2024_08

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000016.10 Reference GRCh38.p14 Primary Assembly

    Range
    729765..740997 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060940.1 Alternate T2T-CHM13v2.0

    Range
    733939..745171 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)