Worm gene name:  XK675
Worm sequence name:  ZC373.1
Related human gene:  CBS
Associated human disease:  Homocystinuria
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Left primer sequence:  gaggctgctcaacaaaaagg
Right primer sequence:  tgttgaagcttgacgagtgg
Size of PCR product:  935
Brief description:  Homocystinuria is an autosomal recessive disorder of methionine metabolism. Cystathione beta synthase (CBS) is the human gene product that catalyzes the committed step in the conversion of methionine to cysteine. Loss of the normal enzyme results in accumulation of the side product homocysteine with systemic consequences.

Affected infants may show no signs until homocysteine levels accumulate. Homocysteine interferes with collagen cross linking, and patients with this disorder may develop joint and skeletal deformities, lens dislocations of the eye (ectopia lentis). Brain development is also affected and patients have an increase in atheromatous plaques of their artery walls. Vascular complications, such as early heart attack, are a leading cause of mortality.

Current treatments include a low-methionine (or low-protein) diet, cysteine supplementation and high dose pyridoxine (vitamin B6) supplementation.

The above primers were ordered and an amplicon was successfully synthesized using PCR and demonstrated via gel electrophoresis.
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Media attachments: 
  • WormBase Diagram  WormBase Diagram
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