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  • Title: Identification and characterization of an MGSA/GRO pseudogene.
    Author: Shattuck-Brandt RL, Wood LD, Richmond A.
    Journal: DNA Seq; 1997; 7(6):379-86. PubMed ID: 9524820.
    Abstract:
    Three linked genes for the CXC-chemokine melanoma growth stimulatory activity/growth related protein (MGSA/GRO) have been previously characterized and mapped to chromosome 4q12-q13. We have isolated and characterized a pseudogene, MGSA/GRO delta, which is 83% similar to the MGSA/GRO alpha gene in the region spanning the 5' UTR, first and second exons, and the first intron. The 5' upstream sequence for the MGSA/GRO delta gene, which is also very similar to the MGSA/GRO alpha, beta, gamma genes, contains a conserved NF-kappa B motif, a TATA box, and a transcription initiation site. However, the sequence becomes markedly divergent after the second exon and hybridization studies indicate that sequences similar to the third and forth exons of other MGSA/GRO genes are not present in this gene. Additional sequence differences include alteration of the MGSA/GRO delta translation initiation codon and a one base insertion resulting in an apparent frame shift and early termination within exon 2. Multiple mutations such as these are characteristic of pseudogenes.
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