Genetic variant
rs143795587 a variant in the NCAPD2 gene
rs143795587 is a single-letter difference in the NCAPD2 gene, on chromosome 12. ClinVar, the public archive of variant interpretations, lists it as conflicting interpretations: laboratories that have assessed it do not agree on whether it matters. Carrying it does not, on its own, mean you have or will develop any condition.
What is this?
Your DNA is a long sequence of four letters. At a few million positions, people commonly differ by a single letter; each of those positions is called a SNP (“snip”), and rs143795587 is the catalogue number of one of them, in the NCAPD2 gene. Which letters you carry there — one copy from each parent — is your genotype.
NCAPD2 (non-SMC condensin I complex subunit D2): Enables histone binding activity. Involved in mitotic chromosome condensation and positive regulation of chromosome condensation. Located in several cellular components, including condensed chromosome; microtubule organizing center; and nuclear lumen. Part of condensin complex. Implicated in primary autosomal recessive microcephaly 21. [provided by Alliance of Genome Resources, Jul 2025]
Gene description from NCBI Gene
Why might it matter?
ClinVar records this variant as conflicting interpretations, meaning laboratories that have assessed it do not agree on whether it matters. A classification describes the variant, not you: what it means for one person depends on their genotype, their family history and often on other genes and circumstances.
Do I have this variant?
If you have taken a consumer DNA test (23andMe, AncestryDNA and similar), you can download its raw data file and check. Create a free account, upload the file, and this page will show the letters you carry at rs143795587, if your test read this position.
Connect this with your blood results
A gene is a fixed instruction; a blood test shows what your body is doing now. CheckMyBloods reads the two side by side, so a variant can be set against the markers it could plausibly affect.
Blood markers do not diagnose a genetic condition, and a variant does not explain a blood result on its own. Together, with symptoms and family history, they give a clinician context.
What should I do next?
- Find out whether you carry it. Reading about a variant says nothing about you until you know your genotype.
- Put it in context. Add your blood results, so the variant can be read against what your body is doing.
- Ask questions. Dr. Hemsworth, our AI assistant, can explain this variant and your results in plain English.
- Take anything that worries you to a professional. A GP or genetic counsellor can order a confirmatory test and interpret it with your history.
This page is general information drawn from public research databases. It cannot diagnose anything, and it is not a substitute for advice from a doctor or genetic counsellor who knows your history.
Technical details
- dbSNP ID
- rs143795587
- Gene
- NCAPD2
- Position
- chr12:6516849
- ClinVar classification
- Conflicting classifications of pathogenicity
Sources
- dbSNP: rs143795587 — the reference record
- ClinVar — clinical interpretations submitted by laboratories
- SNPedia — community-written summaries
- NCBI Gene: NCAPD2
- Ensembl: NCAPD2