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Unit outline_

BCMB2902: Proteins in Cells (Advanced)

Semester 2, 2020 [Normal day] - Camperdown/Darlington, Sydney

A single human cell contains billions of protein molecules that are constantly in motion. Why so many? What are they doing? And, how are they doing it? In simple terms, proteins define the function of and drive almost every process within cells. In this unit of study you will learn about the biochemistry of proteins in their natural environment - within cells - with a focus on eukaryotes including plant and other cell types. You will discover the dynamic interplay within and between proteins and other cellular components and how the physical properties of proteins dictate function. You will discover how proteins are compartmentalized, modified, folded, transported in and between cells, the mechanisms by which proteins regulate biological activities, interact and transport molecules across membranes, and how mutations in proteins can lead to pathological consequences. There will be a research-focused approach to the advanced practical component, including real and virtual extensions to key experiments. This approach will continue in the lecture series with several unique advanced lectures covering current research topics. You will further investigate a selected area of interest from these topics using original source material and present your findings through an oral presentation in dedicated advanced tutorials.

Unit details and rules

Academic unit Life and Environmental Sciences Academic Operations
Credit points 6
Prerequisites
? 
A mark of at least 70 from (BIOL1XX7 or MBLG1XX1) and (CHEM1XX1 or CHEM1903)
Corequisites
? 
None
Prohibitions
? 
BCHM2071 or BCHM2971 or BCMB2002
Assumed knowledge
? 

None

Available to study abroad and exchange students

Yes

Teaching staff

Coordinator Sandro Fernandes Ataide, sandro.ataide@sydney.edu.au
Type Description Weight Due Length
Final exam (Record+) Type B final exam Final exam
Invigilated - 48 MCQ and 6 SAQ
50% Formal exam period 2 hours
Outcomes assessed: LO1 LO2 LO3 LO4 LO5 LO6 LO7 LO8 LO9 LO10
Assignment Quiz 1
Quiz
5% Week 07 20MCQ and 3 SAQ - 90 min
Outcomes assessed: LO1 LO2 LO3 LO4 LO5 LO6
Assignment Project
Report their online experiments
5% Week 09 2 weeks
Outcomes assessed: LO1 LO2 LO3 LO4 LO5 LO6
Assignment Quiz 2
Quiz
5% Week 12 20MCQ and 3 SAQ - 90 min
Outcomes assessed: LO1 LO2 LO3 LO4 LO5 LO6
Assignment Project/ presentation
perform an online VR experiment
5% Week 12 3 weeks
Outcomes assessed: LO1 LO2 LO3 LO4 LO5 LO6
Assignment Post-lab work report ( x7)
Experiment report
21% Weekly as required, 1 week after work
Outcomes assessed: LO7 LO8 LO9 LO10
Assignment Pre-work report (x6)
pre-lab report to prepare for practical
9% Weekly as required, day before lab work
Outcomes assessed: LO7 LO8 LO9 LO10
Type B final exam = Type B final exam ?

Assessment summary

Detailed information for each assessment can be found on Canvas.

Assessment criteria

The University awards common result grades, set out in the Coursework Policy 2014 (Schedule 1).

As a general guide, a high distinction indicates work of an exceptional standard, a distinction a very high standard, a credit a good standard, and a pass an acceptable standard.

For more information see guide to grades.

Late submission

In accordance with University policy, these penalties apply when written work is submitted after 11:59pm on the due date:

  • Deduction of 5% of the maximum mark for each calendar day after the due date.
  • After ten calendar days late, a mark of zero will be awarded.

Academic integrity

The Current Student website provides information on academic integrity and the resources available to all students. The University expects students and staff to act ethically and honestly and will treat all allegations of academic integrity breaches seriously.

We use similarity detection software to detect potential instances of plagiarism or other forms of academic integrity breach. If such matches indicate evidence of plagiarism or other forms of academic integrity breaches, your teacher is required to report your work for further investigation.

Use of generative artificial intelligence (AI) and automated writing tools

You may only use generative AI and automated writing tools in assessment tasks if you are permitted to by your unit coordinator. If you do use these tools, you must acknowledge this in your work, either in a footnote or an acknowledgement section. The assessment instructions or unit outline will give guidance of the types of tools that are permitted and how the tools should be used.

Your final submitted work must be your own, original work. You must acknowledge any use of generative AI tools that have been used in the assessment, and any material that forms part of your submission must be appropriately referenced. For guidance on how to acknowledge the use of AI, please refer to the AI in Education Canvas site.

The unapproved use of these tools or unacknowledged use will be considered a breach of the Academic Integrity Policy and penalties may apply.

Studiosity is permitted unless otherwise indicated by the unit coordinator. The use of this service must be acknowledged in your submission as detailed on the Learning Hub’s Canvas page.

Outside assessment tasks, generative AI tools may be used to support your learning. The AI in Education Canvas site contains a number of productive ways that students are using AI to improve their learning.

Simple extensions

If you encounter a problem submitting your work on time, you may be able to apply for an extension of five calendar days through a simple extension.  The application process will be different depending on the type of assessment and extensions cannot be granted for some assessment types like exams.

Special consideration

If exceptional circumstances mean you can’t complete an assessment, you need consideration for a longer period of time, or if you have essential commitments which impact your performance in an assessment, you may be eligible for special consideration or special arrangements.

Special consideration applications will not be affected by a simple extension application.

Using AI responsibly

Co-created with students, AI in Education includes lots of helpful examples of how students use generative AI tools to support their learning. It explains how generative AI works, the different tools available and how to use them responsibly and productively.

WK Topic Learning activity Learning outcomes
Week 01 1. Introduction lecture; 2. The sugar story; 3. Proteins: introduction to structure and function Lecture (1 hr)  
1. Structure of proteins in detail; 2. Protein folding: primary, secondary, tertiary and quaternary structures, forces involved in the folding; 3. Ramachandran plot; 4. Diseases relating to misfolding of proteins Lecture (1 hr)  
Week 02 1. Introduction to globular and fibrous proteins; 2. Determining the sequence of a peptide; 3. Evolutionary relationships from protein sequences Lecture (1 hr)  
1. Protein synthesis of housekeeping genes and protein sorting; 2. Protein sorting pathways; 3. Soluble protein stays in cytosol or gets transported to other cellular compartments Lecture (1 hr)  
Dry lab 1 protein visualization and modeling - ONLINE Practical (3 hr)  
Week 03 1. Cell membranes; 2. Properties & functions of membranes; 3. Component parts, curvature, cholesterol, lipid rafts, diffusion through versus flipping across Lecture (1 hr)  
1. Integral membrane proteins, peripheral, amphitropic; 2. TM helical and B- proteins; 3. Directionality; 4. Hydrophobicity & charge distribution; 5. Lipid anchors and glycosylation; 6. Interaction with lipids; 7. Working with membrane proteins Lecture (1 hr)  
Wet lab - pigments extractions and identification - ONLINE Practical (3 hr)  
Week 04 Membrane permeability, membrane potential, membrane transport, permeases, carriers – passive, primary active and secondary active Lecture (1 hr)  
1. Channels; 2. Ion channels size/charge selectivity; 3. Gating: ligand, voltage, mechanosensitive, light sensitive; 4. Action potentials – ligand and voltage gates channel working in series Lecture (1 hr)  
Dry lab 2 principles of protein purification - ONLINE Practical (3 hr)  
Week 05 1.Protein modulation of membranes; 2. Transport vesicles and SNARE system; 3. Clathrin and vesicle formation; 4. Dynamin and kinesin intermediate filaments Lecture (1 hr)  
1. Stages of secretory pathways – ER and GOLGI; 2. Targeting to organelles – mitochondria and chloroplasts; 3. Lysosomes and peroxisomes – functions, storage and trafficking Lecture (1 hr)  
Wet lab - protein purification and SDS-PAGE (Part 1) - Face-to-Face / ONLINE Practical (3 hr)  
Week 06 1. Nuclear transport – nuclear import and export, nuclear pore complex; 2. Nuclear localisation sequences; 3. Importins, the RAN cycle Lecture (1 hr)  
1. Nuclear hormone receptors (STATS) in to trigger transcription; 2. Export of RNA; 3. Nuclear Bodies Lecture (1 hr)  
Wet lab - protein purification and native gel (Part 2) - Face-to-Face / ONLINE Practical (3 hr)  
Week 07 1. Enzymes are catalysts; the transition state; 2. Enzyme classification; 3. Cofactors; 4. Rate constants, free energy changes, activation energy, binding energy; 5. Rate-limiting steps in catalysis; 6. Reaction coordinate diagrams; 7. Rate enhancements; 8. Weak interactions between enzyme and substrate Lecture (1 hr)  
1. The enzyme-substrate (ES) complex; 2. Enzyme specificity and catalysis; 3. Physical and thermodynamic factors affecting activation energy; 4. Induced fit; 5. General enzyme mechanisms; 6. Mechanisms of hexokinase, enolase, lysozyme; 7. Enzyme mutants Lecture (1 hr)  
Dry lab 3 protein alignment/secondary structure prediction (project)/ Quiz 1 - ONLINE Practical (3 hr)  
Week 08 1. Michaelis Menten kinetics and the MM equation; 2. Substrate-to-enzyme ratio; 3. Initial velocity in enzyme kinetics; 4. Enzyme saturation; 5. Pre-steady state and steady state; 6. The Lineweaver-Burk plot; 7. Limitations of Michaelis-Menten kinetics; 8. Turnover number Lecture (1 hr)  
1. Reversible/ irreversible inhibitors and kinetics; 2. Competitive; non-competitive and mixed inhibition; 3. Enzyme inhibitors in identifying reaction mechanisms; 4. Effects of inhibition on the Michaelis-Menten constant and maximum velocity Lecture (1 hr)  
Wet lab - methods of protein determination and quantification - Face-to-Face / ONLINE Practical (3 hr)  
Week 09 1. Plant Biochemistry -differences in cell structure. 2. Chloroplasts. 3. Photosynthesis - the light reactions/Calvin cycle Lecture (1 hr)  
1. Photosynthesis - the dark cycle Lecture (1 hr)  
Wet lab - enzyme kinetics and analysis - Face-to-Face / ONLINE Practical (3 hr)  
Week 10 Nutrient assimilation - nitrogen sulfur Lecture (1 hr)  
1. Secondary metabolites; 2. Plant hormones Lecture (1 hr)  
Dry lab 4 kinetics tutorial - ONLINE Practical (3 hr)  
Week 11 1. Introduction to post-translational modifications; 2. How many gene-products/ proteins does the genome make? 3. Diversity in protein structure/function; 4. Major classes of PTM, including phosphorylation, glycosylation, acetylation, redox modifications and disulfide bonds, deamidation Lecture (1 hr)  
1. Cell signaling by phosphorylation; 2. Concentrating on the insulin signaling pathway to demonstrate how a stimulus (signal) is transmitted by kinase-mediated phosphorylation and phosphatase mediated de-phosphorylation to result in changes to gene expression and response to the stimulus Lecture (1 hr)  
Wet lab - mechanism of enzymes - chymotrypsin - Face-to-Face / ONLINE Practical (3 hr)  
Week 12 1. Protein glycosylation 1; 2. Why are glycans important? Classes of glycan? Glycan biosynthesis and structure of N-linked glycans; 3. Functions of glycosylation in health and disease Lecture (1 hr)  
1. Disulfide bonds and redox modifications of proteins; 2. Formation of disulfide bonds and their role in protein structure; 3. Oxidative stress and oxidative modifications of proteins; 4. Diversity of redox modifications; 5. Function of redox modifications; 6. Redox signaling Lecture (1 hr)  
1. Dry lab 5 - Quiz 2 - ONLINE Practical (3 hr)  

Attendance and class requirements

  • Attendance: it is faculty policy that you mustattend >80% of practical classes, even with medical certification. This means that if you miss more than two classes, you are likely not to pass the practical course.
  • Referencing guide: if you use someone’s ideas, formulas, methods, evidence, tables or images you must use a reference. You must not present someone’s artistic work, musical creation, programming code or any other form of intellectual property as your own. If referring to any of these, you must always present them as the work of their creator and reference in an appropriate way.

Study commitment

Typically, there is a minimum expectation of 1.5-2 hours of student effort per week per credit point for units of study offered over a full semester. For a 6 credit point unit, this equates to roughly 120-150 hours of student effort in total.

Learning outcomes are what students know, understand and are able to do on completion of a unit of study. They are aligned with the University's graduate qualities and are assessed as part of the curriculum.

At the completion of this unit, you should be able to:

  • LO1. Outline the basic principles and describe in detail the constituent elements of protein structure; attribute these properties to protein and cellular function.
  • LO2. Identify the different types of compartments and other types of organisation within cells and describe the intrinsic properties and specific functions of these organelles and other compartments.
  • LO3. Discuss the movement of proteins inside the cell. Evaluate how these dynamics are achieved and why they are important for cellular function.
  • LO4. Identify the various ways in which proteins can be modified after translation, describe how these modifications are achieved and evaluate how they affect the physical properties of proteins.
  • LO5. Classify the types of communication necessary for cells; differentiate the different ways by which molecules are transported within and between cells.
  • LO6. Compare and evaluate the similarities and differences in biochemical processes between plants and other eukaryotes.
  • LO7. Explain, with examples, the difference between a qualitative and a quantitative measurement; determine which of the different technique should be used, and implement methods to visualize and analyse the structure and function of proteins, in an accurate and reproducible manner.
  • LO8. Adapt, develop and trouble-shoot experimental procedures for novel contexts and requirements.
  • LO9. Assess the quality of data, interpret and draw conclusions from data obtained in the laboratory.
  • LO10. Summarise and identify the key points from topical biochemical data from a number of published sources; synthesise and communicate the findings.

Graduate qualities

The graduate qualities are the qualities and skills that all University of Sydney graduates must demonstrate on successful completion of an award course. As a future Sydney graduate, the set of qualities have been designed to equip you for the contemporary world.

GQ1 Depth of disciplinary expertise

Deep disciplinary expertise is the ability to integrate and rigorously apply knowledge, understanding and skills of a recognised discipline defined by scholarly activity, as well as familiarity with evolving practice of the discipline.

GQ2 Critical thinking and problem solving

Critical thinking and problem solving are the questioning of ideas, evidence and assumptions in order to propose and evaluate hypotheses or alternative arguments before formulating a conclusion or a solution to an identified problem.

GQ3 Oral and written communication

Effective communication, in both oral and written form, is the clear exchange of meaning in a manner that is appropriate to audience and context.

GQ4 Information and digital literacy

Information and digital literacy is the ability to locate, interpret, evaluate, manage, adapt, integrate, create and convey information using appropriate resources, tools and strategies.

GQ5 Inventiveness

Generating novel ideas and solutions.

GQ6 Cultural competence

Cultural Competence is the ability to actively, ethically, respectfully, and successfully engage across and between cultures. In the Australian context, this includes and celebrates Aboriginal and Torres Strait Islander cultures, knowledge systems, and a mature understanding of contemporary issues.

GQ7 Interdisciplinary effectiveness

Interdisciplinary effectiveness is the integration and synthesis of multiple viewpoints and practices, working effectively across disciplinary boundaries.

GQ8 Integrated professional, ethical, and personal identity

An integrated professional, ethical and personal identity is understanding the interaction between one’s personal and professional selves in an ethical context.

GQ9 Influence

Engaging others in a process, idea or vision.

Outcome map

Learning outcomes Graduate qualities
GQ1 GQ2 GQ3 GQ4 GQ5 GQ6 GQ7 GQ8 GQ9

This section outlines changes made to this unit following staff and student reviews.

The projects and feedback format has changed. All penalties and timeline follows the Faculty of Science guidelines. Two VR simulations have been added to the course to help the students with their learning of complex subjects.

Work, health and safety

We are governed by the Work Health and Safety Act 2011, Work Health and Safety Regulation 2011 and Codes of Practice. Penalties for non-compliance have increased. Everyone has a responsibility for health and safety at work. The University’s Work Health and Safety policy explains the responsibilities and expectations of workers and others, and the procedures for managing WHS risks associated with University activities.

Disclaimer

The University reserves the right to amend units of study or no longer offer certain units, including where there are low enrolment numbers.

To help you understand common terms that we use at the University, we offer an online glossary.