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. 1989 Nov;45(5):814-8.

The human chromogranin A gene: chromosome assignment and RFLP analysis

W S Modi  1 , M A Levine, H N Seuanez, M Dean, S J O'Brien
Affiliations

The human chromogranin A gene: chromosome assignment and RFLP analysis

W S Modi et al. Am J Hum Genet. 1989 Nov.

Abstract

Chromogranin A/secretory protein I (CgA) is a glycoprotein that is stored and released along with peptide hormones and neurotransmitters from several tissues, although its exact function is not known. A cDNA (gene symbol CHGA) clone was used as a probe in Southern blot analyses of human-rodent somatic cell hybrid DNAs. Discordancy analysis allowed confirmation of the assignment of the gene to chromosome 14. These results were extended using in situ chromosome hybridization, and a signal was found at 14q32. BglII digestion of genomic DNA from 28 unrelated Caucasian individuals probed with CHGA detected a two-allele RFLP with allelic frequencies of .34 and .66.

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