Svensk definition
Ett kromosominstabilt syndrom som beror på felaktig reaktion på dubbelsträngade DNA-brott. Förutom typiska utseendedrag och mikrocefali uppvisar patienterna en rad andra tecken, som t ex strålningskänslighet, immundefekter, ökad cancerrisk och liten kroppsväxt. Mutationerna som ligger till grund förekommer i NBS1-genen, på kromosom 8q21. NBS1 kodar för ribin, det centrala reglerproteinet i R/M/N (RAD50/MRE11/NBS1)-proteinkomplexet, som upptäcker och reagerar cellulärt på DNA-skada orsakad av joniserande strålning.
Engelsk definition
A chromosome instability syndrome resulting from a defective response to DNA double-strand breaks. In addition to characteristic FACIES and MICROCEPHALY, patients have a range of findings including RADIOSENSITIVITY, immunodeficiency, increased cancer risk, and growth retardation. Causative mutations occur in the NBS1 gene, located on human chromosome 8q21. NBS1 codes for nibrin, the key regulator protein of the R/M/N (RAD50/MRE11/NBS1) protein complex which senses and mediates cellular response to DNA DAMAGE caused by IONIZING RADIATION.
Svenska synonymer
Inga svenska synonymer finns.
Engelska synonymer
Breakage Syndrome, Nijmegen — Syndrome, Nijmegen Breakage — Ataxia-Telangiectasia Variant 1 — Ataxia Telangiectasia Variant 1 — Ataxia-Telangiectasia Variant 1s — Variant 1s, Ataxia-Telangiectasia — Ataxia-Telangiectasia Variant V1 — Ataxia Telangiectasia Variant V1 — Ataxia-Telangiectasia Variant V1s — Variant V1, Ataxia-Telangiectasia — Variant V1s, Ataxia-Telangiectasia — Seemanova Syndrome II — Immunodeficiency, Microcephaly, And Chromosomal Instability — Microcephaly with Normal Intelligence, Immunodeficiency, and Lymphoreticular Malignancies — Nonsyndromal Microcephaly, Autosomal Recessive, with Normal Intelligence — Seemanova Syndrome 2 — At-V1 — Berlin Breakage Syndrome — Breakage Syndrome, Berlin — Syndrome, Berlin Breakage