Protein sy'n cael ei godio yn y corff dynol gan y genyn SDK2 yw SDK2 a elwir hefyd yn Sidekick cell adhesion molecule 2 (Saesneg). Segment o DNA yw'r genyn, sy'n amgodio ffwythiant arbennig. Mae'r genyn yma wedi ei leoli ar yr edefyn ôl o gromosom dynol 17, band 17q25.1.[2]
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