'Peptide chain' diaporamas de présentation

Dr. HASSAN EL-BANNA

Dr. HASSAN EL-BANNA. Protein Biosynthesis. Flow of genetic informations from DNA to protein: The genetic information of the cell is stored and transmitted in the nucleotide sequences of DNA. Expression of this genetic informations involves two stages:-

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Fibrous Proteins

Fibrous Proteins. UNIT I: Protein Structure and Function. Overview. Collagen & elastin are examples of common, well-characterized fibrous proteins that serve structural functions in the body

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11.1 Genes are made of DNA

11.1 Genes are made of DNA. Griffith Experiment. Avery Experiment. -Destroyed proteins -Mice still died with mix. Hershey Chase Experiement. Virus- nucleic acid wrapped in protein; needs host to reproduce Bacteriophage- virus that infects bacteria. Hershey Chase Experiment. Question 1 & 2.

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Proteins

Proteins. Proteins serve many functions, including the following: 1. Structure: Collagen and keratin are the chief constituents of skin, bone, hair, and nails. 2. Catalysts: Virtually all reactions in living systems are catalyzed by proteins called enzymes.

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PART TWO

PART TWO. Long biochemically important proteins have certain folding patterns involving combinations of the different types of secondary structure patterns called super secondary structures. i.e these super secondary structures involve ?-helices and ?-sheets

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Chapter 4 The Chemical Composition of Proteins

Chapter 4 The Chemical Composition of Proteins. Homework II (cont’d): Ch. 6 problems 6, 7, 8 (optionally 10) and Ch. 7 problems 3, 6, 7, 9, 10 (optionally 12) a useful site: www.cbi.pku.edu.cn Use blast search in database swissprot

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MOLECULAR GENETICS TRANSCRIPTION & TRANSLATION

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Review

Review. What monomers make up protein polymers? What type of chemical bond is formed between these monomers? What are the four levels of structure in proteins?. Review. What monomers make up protein polymers? Amino acids

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TRANSLASI

TRANSLASI . Dr. Yekti Asih Purwestri , M.Si . Asam amino dan ikatan peptida. Ada 20 asam amino yang dikode oleh DNA

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Chapter 4 Gene Translation: RNA ? Protein

Chapter 4 Gene Translation: RNA ? Protein. 4.1 Translation System 1. Genetic codon. ? Degeneracy ? Generality ? Particularity ? Codon Anticodon. Wobble hypothesis. 2. mRNA structure mRNA structure of prokaryotes polycistron Shine-Dalgarno sequence.

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A Tour of the Cell

A Tour of the Cell. Microscopic view. Membrane structure. Nucleus and ribosomes. The Endomembrane System. Chloroplasts, Mitochondria. Cytoskeleton. Cilia and flagella. A Prokaryote. Example?. Bacteria. Name some structures:. Plasma membrane. yellow. Cell wall. green. Flagella.

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Chapter 14

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??? ???? ?????? ?????? UMM AL-QURQ UNIVERSITY Faculty of Medicine Dep. Of BIOCHEMISTRY

??? ???? ?????? ?????? UMM AL-QURQ UNIVERSITY Faculty of Medicine Dep. Of BIOCHEMISTRY. PROTEINS AND AMINO ACIDS [2]. WHAT ARE PROTEINS ?:. Proteins are polymers of the bifunctional monomer, amino acids.

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Replication (not part of transcription/translation)

Before a cell can divide, the DNA in the nucleus of the cell must be duplicated. Since the DNA molecule consists of two complimentary stands, if those two strands separate and the right conditions are present, two new stands that are the compliments of the originals will be produced.

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Molecular Biology Primer

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D igestion of Dietary Carbohydrates

D igestion of Dietary Carbohydrates. M ain C arbohydrates of Diet. 1- M onosaccharides : mainly glucose & fructose ABORBED with NO DIGESTION 2- D isaccharides : S ucrose , lactose & maltose DIGESTED into monosaccharides 3- P olysaccharides :

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Proteins

Proteins. Proteins are long polymers made up of 20 different amino acid monomers They are quite large, with molar masses of around 5,000 g/mol to around 100,000 g/mol They have complex structures with unique 3-D shapes that determine their functions

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Chapter 3, part C

Chapter 3, part C. Central Dogma of Molecular Biology From Genes to Protein. Central Dogma of Molecular Biology. mRNA. Eukaryotic Cell. ribosome. Transcription : synthesis of mRNA from DNA by RNA polymerase protein - Two steps: 1. creating a 1 o mRNA transcript

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Sickle Cell Anemia

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