Lecture 23a - LECTURE 23 ANNOUNCEMENTS MIDTERM EXAM...

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LECTURE 23 ANNOUNCEMENTS ROOM ASSIGNMENTS: LAST NAME A - N IN KENNEDY AUDITORIUM LAST NAME O - Z IN WARREN HALL B45 FRIDAY 10/20 AT 1:25PM IN COMSTOCK B106: THE MEDICAL SCHOOL INTERVIEW-- WHAT TO EXPECT; HOW TO PREPARE FUSION/FISSION OF MEMBRANES CARBOHYDRATE BASICS TODAY: BIOLOGY INFORMATION "MIXER" BIOLOGY MIXER Talk with professors! Come enjoy cheese, crackers, popcorn, and cider! Wednesday, October 18th 4:00 – 5:30 216 Stimson Hall
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LINKING THE MONOSACCHARIDES FORMATION OF GLYCOSIDIC LINK: LACTOSE β - D -GALACTOPYRANOSYL-(1 4)- β - D -GLUCOPYRANOSE NUCLEOTIDES HAVE N - GLYCOSIDIC BONDS IF ANOMERIC C HAS -OH, CALLED “REDUCING END”. IT REACTS WITH VARIOUS OXIDANTS. MORE IMPORTANT: IT CAN REACT WITH C-OH OF ANOTHER SUGAR DISACCHARIDE 3 - 10 LINKED SUGARS OLIGOSACCHARIDE N C + OH H C + H C - O OH C C C - C H C - O O C C C - C H + H 2 O JARGON β O - GLYCOSIDIC BOND MORE POLYSACCHARIDE OXIDATION LEVEL OF CARBONYL C AMP
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WHY IS CARBOHYDRATE STRUCTURE SOOOO COMPLEX?! 1. VARIETY OF SACCHARIDE MONOMERS 2. RING CAN BE 5- OR 6-MEMBERED 3. VARIETY OF GLYCOSIDIC LINKAGES: 1 1, 1 2, 1 3, 1 4, 1 6 4. SEQUENCE OF MONOMER TYPES IN DI-, OLIGO-, POLYSACCHARIDES 5. ANOMERIC CARBON CAN BE α OR β i.e. WHAT FACTORS DETERMINE STRUCTURE OF DI-, OLIGO-, OR POLYSACCHARIDES?
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This note was uploaded on 02/19/2008 for the course BIOBM 3310 taught by Professor Feigenson,gw during the Fall '07 term at Cornell University (Engineering School).

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Lecture 23a - LECTURE 23 ANNOUNCEMENTS MIDTERM EXAM...

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