Williams Charlene J, Zhang Yun, Timms Andrew, Bonavita Gina, Caeiro Francisco, Broxholme John, Cuthbertson Jonathan, Jones Yvonne, Marchegiani Raul, Reginato Antonio, Russell R Graham G, Wordsworth B Paul, Carr Andrew J, Brown Matthew A
Thomas Jefferson University, Philadelphia, PA, USA.
Am J Hum Genet. 2002 Oct;71(4):985-91. doi: 10.1086/343053. Epub 2002 Sep 17.
Familial autosomal dominant calcium pyrophosphate dihydrate (CPPD) chondrocalcinosis has previously been mapped to chromosome 5p15. We have identified a mutation in the ANKH gene that segregates with the disease in a family with this condition. ANKH encodes a putative transmembrane inorganic pyrophosphate (PPi) transport channel. We postulate that loss of function of ANKH causes elevated extracellular PPi levels, predisposing to CPPD crystal deposition.
家族性常染色体显性遗传的二水焦磷酸钙(CPPD)软骨钙质沉着症先前已被定位到5号染色体的p15区域。我们在一个患有此病的家族中发现ANKH基因的一个突变与该疾病共分离。ANKH编码一种假定的跨膜无机焦磷酸(PPi)转运通道。我们推测ANKH功能丧失导致细胞外PPi水平升高,易引发CPPD晶体沉积。