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Elevated expression of MMPs in the Klf4CN cornea. RT-PCR analysis of expression levels of transcripts encoding MMP2, 3, 9 and 13, in the WT and Klf4CN corneas. Expression levels of 18S rRNA transcripts are used as endogenous controls. The expected amplicons are indicated by arrows in the gel picture, with the corresponding expected amplicon sizes indicated below the gel photo for each MMP.
