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Complement component C8, A chain

The C8A gene encodes the alpha subunit of the complement component 8. C8 participates in the formation of the membrane attack complex (MAC) which disrupts bacterial walls, which mediates cell lysis. Mutations cause autosomal recessive complement C8 deficiency type 1.

Genetests:

Clinic Method Carrier testing
Turnaround 5 days
Specimen type genomic DNA
Clinic Method Massive parallel sequencing
Turnaround 25 days
Specimen type genomic DNA
Clinic Method Genomic sequencing of the entire coding region
Turnaround 25 days
Specimen type genomic DNA

Related Diseases:

Complement C8 deficiency type 1
C8A
Meningococcal infection susceptibility
C3
C5
C7
C8A
C8B
C8G
C9
CD46
CFB
CFD
CFH
CFP

References:

1.

Ng SC et al. (1987) The eighth component of human complement: evidence that it is an oligomeric serum protein assembled from products of three different genes.

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2.

Merritt AD et al. (1976) Chromosome 6: linkage of the eighth component of complement (C8) to the histocompatibility region (HLA).

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3.

Michelotti GA et al. (1995) Genomic organization of human complement protein C8 alpha and further examination of its linkage to C8 beta.

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4.

Zhang L et al. (1995) The eighth component of human complement: molecular basis of C8A (C81) polymorphism.

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5.

Rittner C et al. (1984) Population and formal genetics of the human C81(alpha-gamma) polymorphism.

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6.

Alper CA et al. (1983) Genetic polymorphism in C8 beta-chains. Evidence for two unlinked genetic loci for the eighth component of human complement (C8).

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7.

Densen P et al. (1983) Inherited deficiency of C8 in a patient with recurrent meningococcal infections: further evidence for a dysfunctional C8 molecule and nonlinkage to the HLA system.

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8.

Komatsu M et al. (1985) Genetic deficiency of the alpha-gamma-subunit of the eighth complement component in the rabbit.

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9.

Rogde S et al. (1985) Genetic polymorphism of complement component C8.

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10.

Nakamura S et al. (1986) Genetic polymorphism of human complement component C81 in the Japanese population.

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11.

Rittner C et al. (1986) Human C81 (alpha-gamma) polymorphism: detection in the alpha-gamma subunit on SDS-PAGE, formal genetics and linkage relationship.

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12.

Rogde S et al. (1986) The C8A and C8B loci are closely linked on chromosome 1.

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13.

Hadders MA et al. (2007) Structure of C8alpha-MACPF reveals mechanism of membrane attack in complement immune defense.

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14.

Rosado CJ et al. (2007) A common fold mediates vertebrate defense and bacterial attack.

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15.

Theriault A et al. (1992) Regional chromosomal assignment of genes encoding the alpha and beta subunits of human complement protein C8 to 1p32.

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16.

Giraldo G et al. (1977) C8 deficiency in a family with xeroderma pigmentosum. Lack of linkage to the HLA region.

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17.

Rogde S et al. (1992) Linkage and association studies with C8A and C8B RFLPs on chromosome 1.

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18.

Kojima T et al. (1998) Genetic basis of human complement C8 alpha-gamma deficiency.

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19.

Brickner A et al. (1985) Functional domains of the alpha subunit of the eighth component of human complement: identification and characterization of a distinct binding site for the gamma chain.

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20.

Klob WP et al. (1976) The membrane attack mechanism of complement: the three polypeptide chain structure of the eigth component (C8).

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21.

NCBI article

NCBI 731 external link
22.

OMIM.ORG article

Omim 120950 external link
23.

Orphanet article

Orphanet ID 160117 external link
Update: Aug. 14, 2020
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