Complement Component 8 Deficiency, Type Ii; C8d2


Patients with deficiency of C8 suffer from recurrent neisserial infections, predominantly with meningococcus infection of rare serotypes. Most such patients are discovered among those having their first episode of meningitis at ages older than 10 years (Ross and Densen, 1984).Two types of inherited C8 deficiency have been reported in man: type I (OMIM ), in which only C8 alpha (C8A, {120950}) and C8 gamma (C8G ) are deficient, and type II, in which only C8 beta is deficient (Marcus et al., 1982; Tedesco et al., 1983). The 2 types are clinically indistinguishable (Ross and Densen, 1984).

Clinical Features

Phenotypes and symptoms related to Complement Component 8 Deficiency, Type Ii; C8d2

  • Arthritis
  • Meningitis
  • Antinuclear antibody positivity
  • C8 deficiency
  • Recurrent Neisserial infections

Incidence and onset information

— Currently we don't have prevalence information about this disease (Not enough data available about incidence and published cases.)
No data available about the known clinical features onset.

Alternative names

Complement Component 8 Deficiency, Type Ii; C8d2 Is also known as c8b deficiency, complement component 8b deficiency, c8 beta deficiency, c8 deficiency, type ii.

Researches and researchers

Currently, we don't have any information about doctors, researches or researchers related to this disease. Please contact us if you would like to appear here.

Complement Component 8 Deficiency, Type Ii; C8d2 Recommended genes panels

Panel Name, Specifity and genes Tested/covered
Complement deficiencies Panel.

By CeGaT GmbH (Germany).

CFB, THBD, SERPING1, C1QA, C1QB, C1QC, C1R, C1S, C2, C3, C4A, C4B, C5, C6, C7, C8A, C8B, C8G, C9, CD59 , (...)

View the complete list with 14 more genes
3 %
100 %

By Fulgent Genetics Fulgent Genetics (United States).

100 %
100 %
Complement System Disorder Panel.

By Blueprint Genetics (Finland).

CFB, SPAG1, THBD, SERPING1, RSPH1, C1QA, C1QB, C1QBP, C1QC, C1S, C2, VTN, C3, C3AR1, C4BPA, C4BPB, C5, C5AR1, C6, C7 , (...)

View the complete list with 55 more genes
2 %
100 %

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Sources and references

You can check the following sources for additional information.

OMIM Rare Disease Symptoms Checker

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