RGD Reference Report - A 40-base-pair duplication in the gp91-phox gene leading to X-linked chronic granulomatous disease. - Rat Genome Database

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A 40-base-pair duplication in the gp91-phox gene leading to X-linked chronic granulomatous disease.

Authors: Rabbani, H  De Boer, M  Ahlin, A  Sundin, U  Elinder, G  Hammarstrom, L  Palmblad, J  Smith, CI  Roos, D 
Citation: Rabbani H, etal., Eur J Haematol. 1993 Oct;51(4):218-22.
RGD ID: 11040562
Pubmed: (View Article at PubMed) PMID:7694872

Chronic granulomatous disease (CGD) is characterized by the inability of the patients' phagocytic leukocytes to generate superoxide. Therefore, these cells fail to kill certain bacteria and fungi. As a result, patients with CGD suffer from recurrent, life-threatening infections with these micro-organisms. Superoxide is produced by NADPH oxidase, a multicomponent enzyme exclusively present in phagocytic leukocytes. The most common form of CGD is X-linked, originating from a deficiency of the high-molecular-weight subunit of cytochrome b558 (gp91-phox). Here we describe a patient suffering from X-linked CGD due to a 40-base-pair duplication in exon 7 of the CYBB gene coding for gp91-phox, predicting a frameshift, substitution of 22 amino acids and a premature stop codon at amino-acid position 253. The mother as well as the grandmother of this patient were proven to be heterozygous for this mutation; the father and sister were normal. However, the great-grandmother proved to have normal oxidative functions, suggesting that the mutation occurred three generations ago. This is the first description of a nucleotide duplication leading to CGD.

Annotation

Disease Annotations    

Objects Annotated

Genes (Rattus norvegicus)
Cybb  (cytochrome b-245 beta chain)

Genes (Mus musculus)
Cybb  (cytochrome b-245, beta polypeptide)

Genes (Homo sapiens)
CYBB  (cytochrome b-245 beta chain)


Additional Information