rs587777149

A SNP in the CD59 gene on chromosome 11. Its most notable genotype is -;-: inherited CD59 deficiency

Gene
CD59
Location
Chr 1133,717,393 (GRCh38)
Highest magnitude
8.0Very important
Tested on
AncestryDNA

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

  1. -;-Most notableBadinherited CD59 deficiencyVery important · 8.0
  2. -;ABadunaffected carrier of an inherited CD59 deficiency alleleVery important · 4.0
  3. T;TBadinherited C59 deficiencyVery important · 8.0
  4. A;TBadunaffected carrier of an inherited C59 deficiency alleleVery important · 4.0
  5. A;AGoodcommon in clinvarTypical · 0.0

SNPedia records rs587777149 on the minus strand: (-;-), (-;T), (A;A), (A;T), (T;T). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Notes

From SNPedia

Show notes, about 190 words

rs587777149 is a SNP in the CD59 gene. Both a missense mutation and a deletion mutation have been observed at this SNP, and both are reported as recessive mutations. The deletion mutation was originally observed in a 7 month old baby with inherited CD59 deficiency, who went on to develop hemolytic anemia with progressive neurologic deterioration. She improved after treatment with the anti-C5 monoclonal antibody eculizumab. Her parents were both unaffected heterozygotes. See also OMIM 107271.0003 The missense mutation consists of a T>A change (plus strand orientation). This change was found in a multiplex family with strokes, chronic immune-mediated peripheral neuropathy, and hemolysis, all with onset in infancy. Heterozygotes were unaffected.

-;-

see discussion at rs587777149

-;A

see discussion at 587777149

T;T

See discussion at rs587777149; however, be aware of the potential that this is an error in orientation due to ambiguous flip issues. This is a very rare inherited disorder, with a very severe phenotype, and "true" rs587777149(A;A) patients will most likely have been diagnosed early in infancy.

A;T

see discussion at rs587777149

Source and license

Adapted from rs587777149 on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.

SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.