SDC4（syndecan 4），癌症关联基因，基因ID：6385，该基因编码的蛋白质是一种跨膜（I型）硫酸乙酰肝素蛋白多糖，在细胞内信号传导中起受体作用。编码的蛋白质作为同二聚体被发现，是syndecan蛋白多糖家族的成员。这个基因在20号染色体上发现，而在22号染色体上发现了一个假基因。[由RefSeq提供，2008年7月]The protein encoded by this gene is a transmembrane (type I) heparan sulfate proteoglycan that functions as a receptor in intracellular signaling. The encoded protein is found as a homodimer and is a member of the syndecan proteoglycan family. This gene is found on chromosome 20， while a pseudogene has been found on chromosome 22. [provided by RefSeq， Jul 2008]。