• Turnaround time:
    10–21 calendar days (14 days on average)
  • Preferred specimen:
    3mL whole blood in a purple-top tube
  • Alternate specimens:
    DNA or saliva/assisted saliva
  • Sample requirements
  • Request a sample kit



C1orf69; MMDS3; SPG74

Associated disorders

The IBA57 gene currently has no well-established disease association; however, there is preliminary evidence supporting a correlation with autosomal recessive spastic paraplegia 74 (PMID: 25609768) and multiple mitochondrial dysfunctions syndrome 3 (PMID: 25971455, 23462291).

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Invitae tests that include this gene:

The IBA57 gene encodes a protein that plays a role in the maturation and assembly of mitochondrial iron-sulfur cluster proteins. In the mitochondria, iron-sulfur proteins are important components of complexes that function in the electron transport chain, such as complexes I and II.

Assay and technical information

Invitae is a College of American Pathologists (CAP)-accredited and Clinical Laboratory Improvement Amendments (CLIA)-certified clinical diagnostic laboratory performing full-gene sequencing and deletion/duplication analysis using next-generation sequencing technology (NGS).

Our sequence analysis covers clinically important regions of each gene, including coding exons, +/- 10 base pairs of adjacent intronic sequence in the transcript listed below. In addition, analysis covers the select non-coding variants specifically defined in the table below. Any variants that fall outside these regions are not analyzed. Any specific limitations in the analysis of these genes are also listed in the table below.

Our analysis detects most intragenic deletions and duplications at single exon resolution. However, in rare situations, single-exon copy number events may not be analyzed due to inherent sequence properties or isolated reduction in data quality. If you are requesting the detection of a specific single-exon copy number variation, please contact Client Services before placing your order.

Gene Transcript reference Sequencing analysis Deletion/Duplication analysis
IBA57 NM_001010867.3