Protein sy'n cael ei godio yn y corff dynol gan y genyn PGC yw PGC a elwir hefyd yn Progastricsin a Gastricsin (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 6, band 6p21.1.[2]
Yn aml mae gan enynnau lawer o gyfystyron. Mae hyn oherwydd eu bod yn aml yn cael eu darganfod gan nifer o bobl mewn cyd-destunau gwahanol heb wybod mai'r un genynnau oeddyn nhw. Hefyd mae gan wahanol gymunedau gwyddonol safonau gwahanol ar gyfer enwi genynnau. Dyma restr o gyfystyron ar gyfer y genyn PGC.
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"Pepsinogen II can be a potential surrogate marker of morphological changes in corpus before and after H. pylori eradication. ". Biomed Res Int. 2014. PMID25028655.
"Serum Pepsinogen Levels Are Correlated With Age, Sex and the Level of Helicobacter pylori Infection in Healthy Individuals. ". Am J Med Sci. 2016. PMID27865295.
"Pepsinogen-II 100 bp ins/del gene polymorphism and its elevated circulating levels are associated with gastric cancer, particularly with Helicobacter pylori infection and intestinal metaplasia. ". Gastric Cancer. 2016. PMID26486507.
"Polymorphic rs9471643 and rs6458238 upregulate PGC transcription and protein expression in overdominant or dominant models.". Mol Carcinog. 2016. PMID25857852.