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Rodriguez KM, Vaught J, Dilley M, Ellsworth K, Heinen A, Abud EM, Zhang Y, Smith RJH, Sheets R, Geng B, Hoffman HM, Worthen HM, Dimmock D, Coufal NG. Rapid genome sequencing identifies novel variants in complement factor I. Cold Spring Harb Mol Case Stud 2022; 8:a006239. [PMID: 36577522 PMCID: PMC9808552 DOI: 10.1101/mcs.a006239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/05/2022] [Indexed: 12/30/2022] Open
Abstract
Complement factor I deficiency (CFID; OMIM #610984) is a rare immunodeficiency caused by deficiencies in the serine protease complement factor I (CFI). CFID is characterized by predisposition to severe pneumococcal infection, often in infancy. We report a previously healthy adolescent male who presented with respiratory failure secondary to pneumococcal pneumonia and severe systemic inflammatory response. Rapid genome sequencing (rGS) identified compound heterozygous variants in CFI in the proband, with a novel maternally inherited likely pathogenic variant, a single nucleotide deletion resulting in premature stop (c.1646del; p.Asn549ThrfsTer25) and a paternally inherited novel likely pathogenic deletion (Chr 4:110685580-110692197del).
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Affiliation(s)
- Katherine M Rodriguez
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Pediatric Critical Care, Department of Pediatrics, University of California at San Diego, San Diego, California 92123, USA
- Rady Children's Institute for Genomic Medicine, San Diego, California 92123, USA
| | - Jordan Vaught
- Rady Children's Hospital, San Diego, California 92123, USA
- Department of Pediatrics, Immunology, and Rheumatology, Department of Pediatrics, University of California at San Diego, San Diego, California 92161, USA
| | - Michelle Dilley
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, University of California at San Diego, San Diego, California 92161, USA
| | - Kataryzna Ellsworth
- Rady Children's Institute for Genomic Medicine, San Diego, California 92123, USA
| | - Alaina Heinen
- Rady Children's Institute for Genomic Medicine, San Diego, California 92123, USA
| | - Edsel M Abud
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, University of California at San Diego, San Diego, California 92161, USA
- Division of Allergy, Asthma, and Immunology, Scripps Clinic, San Diego, California 92093, USA
| | - Yuzhou Zhang
- Molecular Otolaryngology and Renal Research Laboratories, University of Iowa, Iowa City, Iowa 52242, USA
| | - Richard J H Smith
- Molecular Otolaryngology and Renal Research Laboratories, University of Iowa, Iowa City, Iowa 52242, USA
| | - Robert Sheets
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, University of California at San Diego, San Diego, California 92161, USA
| | - Bob Geng
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, University of California at San Diego, San Diego, California 92161, USA
| | - Hal M Hoffman
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, University of California at San Diego, San Diego, California 92161, USA
| | - H Michael Worthen
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Pediatric Critical Care, Department of Pediatrics, University of California at San Diego, San Diego, California 92123, USA
| | - David Dimmock
- Rady Children's Institute for Genomic Medicine, San Diego, California 92123, USA
| | - Nicole G Coufal
- Rady Children's Hospital, San Diego, California 92123, USA
- Division of Pediatric Critical Care, Department of Pediatrics, University of California at San Diego, San Diego, California 92123, USA
- Rady Children's Institute for Genomic Medicine, San Diego, California 92123, USA
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