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- Introduction to Protein Structure and Function
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1. Nature’s strategies in the regulation of enzyme activity by modifiers
- Prof. Antonio Baici
- Creation of Protein Variability by Manipulation of Genes
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3. Perspectives on biological catalysis
- Prof. Stephen Benkovic
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4. Fundamentals and principles for engineering proteolytic activity
- Prof. Charles Craik
- Metabolic Diseases Caused by Genetic Mutation
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5. Modifications of pyruvate handling in health and disease
- Prof. Mary Sugden
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6. Mitochondrial fatty acid oxidation deficiencies
- Prof. Niels Gregersen
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7. Inborn errors of ketone body metabolism
- Prof. Toshiyuki Fukao
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8. Cathepsin K in bone and joint diseases
- Prof. Dieter Bromme
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9. Fabry disease: alfa-galactosidase A deficiency and enzyme replacement therapy
- Prof. David Warnock
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10. Acid beta-glucosidase/glucocerebrosidase (GCase)
- Prof. Gregory Grabowski
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11. GM2 gangliosidosis future treatments 1
- Prof. Brian Mark
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12. GM2 gangliosidosis future treatments 2
- Prof. Brian Mark
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13. The neuronal ceroid lipofuscinoses
- Prof. Sandra Hofmann
- Disorders of Blood Coagulation
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14. Advances in fibrinolysis
- Dr. Paul Kim
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16. Structure of thrombin, a Janus-headed proteinase
- Prof. Wolfram Bode
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18. Fibrinogen and factor XIII
- Prof. John Weisel
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19. Factor VIII and haemophilia A
- Dr. Geoffrey Kemball-Cook
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20. Factor IX
- Prof. Bruce Furie
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21. The biology and pathobiology of von Willebrand factor
- Prof. David Lillicrap
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22. Thrombotic thrombocytopenic purpura
- Prof. J. Evan Sadler
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23. Fibrinolysis
- Prof. Edward Tuddenham
- Other Molecular and Metabolic Disorders
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24. Glucose-6-phosphate dehydrogenase deficiency
- Dr. Jane Leopold
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25. Cytochrome b5 reductase deficiency and hereditary methemoglobinemia
- Dr. Scott Reading
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26. Sickle cell disease
- Prof. Martin H. Steinberg
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27. Pyruvate kinase deficiency
- Prof. Alberto Zanella
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28. Heritable disorders of collagen
- Dr. Heather Yeowell
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29. Duchenne muscular dystrophy
- Prof. Jeff Chamberlain
- Archived Lectures *These may not cover the latest advances in the field
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30. Protein crystallography
- Prof. Michael James
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31. Regulation of blood coagulation by the serpin, antithrombin
- Prof. Steve Olson
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32. Rhodopsin and retinitis pigmentosa
- Dr. Shalesh Kaushal
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33. The physiology and pathology of coagulation factor XI
- Dr. David Gailani
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34. Cytochrome b5 reductase deficiency and hereditary methemoglobinemia
- Prof. Josef Prchal
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35. Metachromatic leukodystrophy
- Prof. Volkmar Gieselmann
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36. Serpins and serpinopathies
- Dr. James Whisstock
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38. Pleiotropic and epistatic genes in sickle cell anaemia
- Prof. Ronald Nagel
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39. Genetic disorders of carbonic anhydrases II and IV
- Prof. William Sly
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40. GM2 gangliosidoses
- Prof. Don Mahuran
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41. Kinetic analysis of protein activity
- Prof. Antonio Baici
Printable Handouts
Navigable Slide Index
- Introduction
- The carbonic anhydrase (CA) reaction
- The first known inherited CA deficiency syndrome
- First feature: bone fracture and osteopetrosis
- The reasons for suspecting it was a new disease
- Second feature: renal tubular acidosis (RTA)
- Third feature: cerebral calcification
- What enzyme deficiency produce such defects?
- Patterns of erythrocyte CA I and CA II
- My first paper on carbonic anhydrases
- Osteopetrosis/RTA always true for CA II-deficiency
- 16 structural gene mutations in CA II-deficiency
- The proposed roles of CA II and CA IV
- How do we explain cerebral calcification?
- 1983: 50-year anniversary symposium
- How was carbonic anhydrase discovered?
- Purified enzyme was found to contain zinc
- 1945 - 1960: the middle years
- 1960 - 1980: the protein era
- Other CA family members known by 1983
- Why six enzymes for such a simple reaction?
- Partial answer: compartmentalization
- 260-amino acid CA domain is common to all CAs
- N-terminal a.a sequences of catalytic human CAs
- C-terminal a.a sequences of catalytic human CAs
- CA-related proteins (CARPs)
- Why was CA IV of special interest?
- CA IV in the lumen of the proximal renal tubules
- Immunofluorescent labeling of CA IV
- Cartoon of the CA IV-membrane interaction
- Back to the American family with CA II-deficiency
- What CA IV does in your proximal tubules
- How to prove it? find a CA IV deficient patient
- On to the mouse!
- Mouse knockout has no kidney phenotype
- CA IV and CA XIV in kidney proximal tubules
- Wrong predicted CA IV deficiency phenotype
- Summary of CA IV and CA XIV findings in kidney
- Confocal laser scanning images of CA XIV
- CA XIV enrichment in specific membrane domains
- CA XIV is the membrane CA in the retina
- CA IV and XIV knockout mice
- We thought we were finished with CA IV...
- South African family with retinitis pigmentosa
- What is retinitis pigmentosa (RP)?
- What does the retina look like in RP?
- Rhodopsin mutations and retinal disorders
- Predicted R14W mutation effect on CA IV protein
- Could we find a precedent?
- CA IV is absent in the retina
- CA IV is highly expressed in the choriocapillaris
- A working hypothesis for RP17
- What is the UPR?
- How does the UPR help the cell handle ER stress
- R14W mutant CA expression in COS-7 cells
- R14W mutation reduces-steady state level
- Turnover of R14W and wild-type CA IV protein
- R14W mutation and induction of ER proteins
- R14W CA IV-induced ER stress and apoptosis
- R14W CA IV induces upregulation of CHOP
- R14W CA IV induces Annexin V / TUNEL staining
- Apoptosis-inducing signal sequence in CA IV
- So what? good question!
- If RP17 is a protein folding disease...
- Acetazolamide and R14W CA IV degradation rate
- PBA and R14W CA IV biosynthesis and stability
- Will CA inhibitors reduce UPR gene upregulation?
- Chemical chaperones and apoptosis protection
- Summary
- Future studies
- Immunofluorescence of transgenic retina
- TUNEL staining of retina from control mouse
- R14W CA IV transgenic mouse retina staining
Topics Covered
- Carbonic anhydrase deficiencies
- History of the disease
- Roles of CA II and IV in disease
- Sulfonamide inhibitors for treatment of some disorders
- Characterization of CA isozymes
- CA IV discovery and function
- Mouse knockout models of CA deficiencies
- CA IV, unfolded protein response and retinitis pigmentosa
- ER stress and apoptosis in the choriocapillaris
- Chemical chaperones and treatment of retinitis pigmentosa
- Future studies
Links
Series:
Categories:
Therapeutic Areas:
Talk Citation
Sly, W. (2007, October 1). Genetic disorders of carbonic anhydrases II and IV [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved February 5, 2025, from https://doi.org/10.69645/IPNX7682.Export Citation (RIS)
Publication History
Financial Disclosures
- Prof. William Sly has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.