Regulation of Reproductive Function in the Male:

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Regulation of Reproductive Function in the Male
Molecular Genetics and Biochemistry of
Meioisis Dr. Stuart Ravnik, University of Texas
Southwestern Medical Center, Dallas. This is a
recruiting visit. W 4 pm BI 234 Dr. Snorri
Sigurdsson, Research Asst. Professor University
of Washington in biophysical chemistry.
Application of EPR Spectroscopy for the Study
of RNA-Ligand Interactions Friday , 315 pm, CB
285
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Exams will be on Wednesday Evenings (Micro will
be Monday) January 28 and February 25
Office hours truncated today.
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Figure 12-45 Secretory Pathway
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Figure 11-1 The stereochemical relationships,
shown in Fischer projection, among the D-aldoses
with three to six carbon atoms.
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Figure 11-2 The stereochemical relationships
among the D-ketoses with three to six carbon
atoms.
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Figure 11-3 The reactions of alcohols with (a)
aldehydes to form hemiacetals and (b) ketones to
form hemiketals.
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Figure 11-4 Cyclization reactions for hexoses.
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Figure 11-5 The anomeric monosaccharides
a-D-glucopyranose and b-D-glucopyranose, drawn as
both Haworth projections and ball-and-stick
models.
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Figure 11-6 Conformations of the cyclohexane ring
(a) in the boat conformation and (b) in the chair
conformation.
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Figure 11-8 The acid-catalyzed condensation of
a-D-glucose with methanol to form an anomeric
pair of methyl-D-glucosides.
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Figure 11-11 N-Acetylneuraminic acid in its
linear and pyranose forms.
Sialic acid
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Figure 11-12a Several common disaccharides. (a)
Sucrose.
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Figure 11-12b Several common disaccharides. (b)
Lactose.
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Figure 11-13 Electron micrograph of the cellulose
fibers in the cell wall of the alga Chaetomorpha
melagonium.
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Figure 11-14 The primary structure of cellulose.
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Figure 11-15 Proposed structural model of
cellulose.
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Cell wall architecture
Pectins
extensin
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Common sugars found in plant polysaccharides
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Pectin structures
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Cross-bridging and esterification in pectins
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Figure 11-16 Structure of chitin.
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Figure 11-17a a-Amylose. (a) The D-glucose
residues ofa-amylose are linked by a(1 4)
bonds (red).
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Figure 11-17b a-Amylose. (b) This regularly
repeating polymer forms a left-handed helix.
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Figure 11-18a Amylopectin. (a) Its primary
structure near one of its a(1 6) branch points
(red).
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Figure 11-18b Amylopectin. (b) Its bushlike
structure with glucose residues at branch points
indicated in red.
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Figure 11-20 The disaccharide repeating units of
the common glycosaminoglycans.
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Figure 11-23 Schematic diagram comparing the cell
envelopes of (a) gram-positive bacteria and (b)
gram-negative bacteria.
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Figure 11-24a Chemical structure of
peptidoglycan.(a) The repeating unit of
peptidoglycan.
Both and - walls
NAM
NAG
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Figure 11-24b Chemical structure of
peptidoglycan. (b) The S. aureus bacterial cell
wall peptidoglycan.
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Figure 11-25 Structure of penicillin.
From yeast Prevents crosslinking of peptides
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Alexander Fleming
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Figure 11-26 Enzymatic inactivation of
penicillin.
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Figure 11-29a N-Linked oligosaccharides. (a) All
N-glycosidic protein attachments occur through a
?-N-acetylglucosaminoAsn bond to AsnXSer/Thr.
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Figure 11-29c N-Linked oligosaccharides. (c)
Some examples of N-linked oligosaccharides.
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Figure 11-30 Some common O-glycosidic attachments
of oligosaccharides to glycoproteins (red).
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Figure 11-33a The surfaces of (a) a normal mouse
cell as seen in the electron microscope. (b) a
cancerous cell as seen in the electron microscope.
Agglutinated with Conconavalin A--specific for
glc and man
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b
a
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Alfonse, Biochemistry makes my head hurt!!
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