MindMap Gallery protein chemistry
This is a mind map about biochemistry, mainly including amino acids, Molecular structure of peptides and proteins, Properties of proteins, etc.
Edited at 2024-03-24 14:26:48This strategic SWOT analysis explores how Aeon can navigate the competitive online landscape, highlighting strengths, weaknesses, opportunities, and threats. Strengths include strong brand recognition (trusted Japanese heritage, quality), omnichannel capabilities (stores + online + mall integration), customer loyalty programs (Aeon Card, points, member pricing), and physical footprint (extensive store network for pickup/returns). Weaknesses encompass digital maturity gaps (e-commerce penetration, app functionality, personalization vs. Amazon, Alibaba), cost structure challenges (store-heavy, real estate, labor), and supply chain complexity (fresh food, frozen logistics for online). Opportunities include enhancing e-commerce competitiveness (faster delivery, wider assortment, lower minimum order), leveraging data-driven strategies (purchase history, personalized offers, inventory optimization), expanding omnichannel integration (buy online pick up in store, ship from store), and private label growth (Topvalu, localized brands). Threats involve online-first players (Amazon, Alibaba, Sea Limited) with lower costs, wider selection, faster delivery, market dynamics (changing consumer behavior post-COVID, discount competitors), and regulatory risks (data privacy, cross-border e-commerce rules). Aeon can strengthen market position by investing in digital capabilities, leveraging store assets for omnichannel, and using customer data for personalization, while addressing cost structure and online competition.
This analysis explores how Aeon effectively tailors offerings to meet the diverse needs of family-oriented consumers through a comprehensive Segmentation, Targeting, and Positioning (STP) framework. Demographic segmentation examines family life stages (young families with babies, school-aged children, teenagers, empty nesters), household sizes (small vs. large), income levels (mass, premium), and parent age bands (millennials, Gen X). This identifies distinct consumer groups with different spending patterns. Geographic segmentation highlights store catchment types (urban, suburban, rural), community characteristics (density, income, competition), and local preferences (fresh food, halal, Japanese products). Psychographic segmentation delves into family values (health, safety, education, convenience), lifestyle orientations (busy professionals, home-centered, eco-conscious). Behavioral segmentation focuses on shopping missions (daily grocery, weekly stock-up, seasonal shopping), price sensitivity (value seekers, premium), channel preferences (in-store, online, pickup). Needs-based segmentation reveals core family needs related to value (good-better-best pricing), budget considerations (affordability, promotions, member pricing), safety (food quality, product recall), convenience (one-stop shopping, parking, store hours). Targeting prioritizes young families with school-aged children, budget-conscious households, and convenience-seeking shoppers. Positioning emphasizes Aeon as a family-friendly, value-for-money, one-stop destination with Japanese quality and local relevance. These insights enhance family shopping experiences through tailored assortments (kids’ products, school supplies), promotions (family bundles, weekend events), and services (nursing rooms, kids’ play areas).
This Kream Sneaker Consumption Scene Analysis Template aims to visualize purchasing and consumption journeys of sneakers, identifying key demand drivers and obstacles. User behavior within Kream includes searching, bidding, buying, selling, authentication, and community engagement. External influences include brand drops (Nike, Adidas), social media (Instagram, TikTok), influencer hype, and cultural trends. Target categories: limited editions, collaborations, retro releases, performance sneakers, and general releases. Timeframes: launch day, first week, first month, long-term (seasonal, yearly). Regions: North America, Europe, Asia (Korea, China, Japan). User segments: Collectors: value rarity, condition, completeness (box, accessories). KPIs: collection size, spend, authentication rate. Resellers: value profit margin, volume, turnover. KPIs: sell-through rate, average profit, listing frequency. Sneakerheads: value hype, trends, community validation. KPIs: purchase frequency, social engagement, wishlist adds. Casual trend followers: value style, convenience, price. KPIs: conversion rate, average order value, repeat purchases. Gift purchasers: value ease, presentation, brand trust. KPIs: gift message usage, return rate. Consumption journey: Awareness: social media, email, push notifications. Search: browse, filter, search by brand, model, size. Purchase: bid, buy now, payment, shipping. Authentication: inspection, verification, certification. Resale: list, price, sell, transfer. Sharing: review, unboxing, social post, community discussion. Key performance indicators: conversion rate, sell-through rate, average order value, customer lifetime value, authentication pass rate, return rate, Net Promoter Score. This framework helps understand sneaker trading dynamics, user motivations, and touchpoints for engagement and satisfaction.
This strategic SWOT analysis explores how Aeon can navigate the competitive online landscape, highlighting strengths, weaknesses, opportunities, and threats. Strengths include strong brand recognition (trusted Japanese heritage, quality), omnichannel capabilities (stores + online + mall integration), customer loyalty programs (Aeon Card, points, member pricing), and physical footprint (extensive store network for pickup/returns). Weaknesses encompass digital maturity gaps (e-commerce penetration, app functionality, personalization vs. Amazon, Alibaba), cost structure challenges (store-heavy, real estate, labor), and supply chain complexity (fresh food, frozen logistics for online). Opportunities include enhancing e-commerce competitiveness (faster delivery, wider assortment, lower minimum order), leveraging data-driven strategies (purchase history, personalized offers, inventory optimization), expanding omnichannel integration (buy online pick up in store, ship from store), and private label growth (Topvalu, localized brands). Threats involve online-first players (Amazon, Alibaba, Sea Limited) with lower costs, wider selection, faster delivery, market dynamics (changing consumer behavior post-COVID, discount competitors), and regulatory risks (data privacy, cross-border e-commerce rules). Aeon can strengthen market position by investing in digital capabilities, leveraging store assets for omnichannel, and using customer data for personalization, while addressing cost structure and online competition.
This analysis explores how Aeon effectively tailors offerings to meet the diverse needs of family-oriented consumers through a comprehensive Segmentation, Targeting, and Positioning (STP) framework. Demographic segmentation examines family life stages (young families with babies, school-aged children, teenagers, empty nesters), household sizes (small vs. large), income levels (mass, premium), and parent age bands (millennials, Gen X). This identifies distinct consumer groups with different spending patterns. Geographic segmentation highlights store catchment types (urban, suburban, rural), community characteristics (density, income, competition), and local preferences (fresh food, halal, Japanese products). Psychographic segmentation delves into family values (health, safety, education, convenience), lifestyle orientations (busy professionals, home-centered, eco-conscious). Behavioral segmentation focuses on shopping missions (daily grocery, weekly stock-up, seasonal shopping), price sensitivity (value seekers, premium), channel preferences (in-store, online, pickup). Needs-based segmentation reveals core family needs related to value (good-better-best pricing), budget considerations (affordability, promotions, member pricing), safety (food quality, product recall), convenience (one-stop shopping, parking, store hours). Targeting prioritizes young families with school-aged children, budget-conscious households, and convenience-seeking shoppers. Positioning emphasizes Aeon as a family-friendly, value-for-money, one-stop destination with Japanese quality and local relevance. These insights enhance family shopping experiences through tailored assortments (kids’ products, school supplies), promotions (family bundles, weekend events), and services (nursing rooms, kids’ play areas).
This Kream Sneaker Consumption Scene Analysis Template aims to visualize purchasing and consumption journeys of sneakers, identifying key demand drivers and obstacles. User behavior within Kream includes searching, bidding, buying, selling, authentication, and community engagement. External influences include brand drops (Nike, Adidas), social media (Instagram, TikTok), influencer hype, and cultural trends. Target categories: limited editions, collaborations, retro releases, performance sneakers, and general releases. Timeframes: launch day, first week, first month, long-term (seasonal, yearly). Regions: North America, Europe, Asia (Korea, China, Japan). User segments: Collectors: value rarity, condition, completeness (box, accessories). KPIs: collection size, spend, authentication rate. Resellers: value profit margin, volume, turnover. KPIs: sell-through rate, average profit, listing frequency. Sneakerheads: value hype, trends, community validation. KPIs: purchase frequency, social engagement, wishlist adds. Casual trend followers: value style, convenience, price. KPIs: conversion rate, average order value, repeat purchases. Gift purchasers: value ease, presentation, brand trust. KPIs: gift message usage, return rate. Consumption journey: Awareness: social media, email, push notifications. Search: browse, filter, search by brand, model, size. Purchase: bid, buy now, payment, shipping. Authentication: inspection, verification, certification. Resale: list, price, sell, transfer. Sharing: review, unboxing, social post, community discussion. Key performance indicators: conversion rate, sell-through rate, average order value, customer lifetime value, authentication pass rate, return rate, Net Promoter Score. This framework helps understand sneaker trading dynamics, user motivations, and touchpoints for engagement and satisfaction.
protein chemistry
amino acids
Definition of amino acids
Main functions of amino acids
Proteinogenic and non-proteinogenic amino acids
Classification of amino acids
hydrophilic amino acids
hydrophobic amino acids
essential amino acids
non-essential amino acids
abbreviation for amino acid
Ala, Arg, Asn, Asp, Cys, etc.
Physicochemical properties of amino acids
General physical properties
Chirality of amino acids and its determination
D type and L type
Amphiphilic dissociation of amino acids and calculation of isoelectric point and amino acid isoelectric point
chemical properties
Reaction with ninhydrin
Reaction with 2,4-dinitrofluorobenzene (Sanger reaction)
Reaction with benzene isothiocyanate (PITC)
UV absorption properties of aromatic amino acids | Oxidation of cysteine and formation of disulfide bonds Dissociation properties in the R group of His at near physiological pH
peptide
Definition of peptide
A polymer formed by covalently linking two or more amino acids through the condensation of α-amino and α-carboxyl groups with amide bonds (peptide bonds). It includes oligopeptides, polypeptides and proteins. Each amino acid unit that makes up a peptide is called an amino acid residue. The chain structure formed by amino acid residues connected by peptide bonds is called a peptide chain
Properties of peptide bonds
Has partial double bond properties (40%). The bond length of peptide bond is 0.133nm, which is between C-N single bond (0.147nm) and C=N double bond (0.128nm).
Classification and naming of peptides
The main basis for naming and classifying peptides is the number and composition of amino acid residues. Peptides can be classified according to the number of amino acid residues and are called peptides. For example, a peptide made of 2 amino acids is called a dipeptide, a peptide made of 3 amino acids is called a tripeptide, and so on. Generally, peptides composed of 2 to 10 amino acid residues are called oligopeptides, peptides composed of 11 to 50 amino acid residues are called polypeptides, and peptides composed of more than 50 amino acid residues are usually called proteins. Insulin contains 51 amino acids and is a protein. Glucagon contains only 29 amino acids, so it can only be called a polypeptide.
Each amino acid that makes up a peptide molecule is not a complete molecule because it participates in the formation of peptide bonds, so it is called an amino acid residue (residue). In a peptide molecule, the N-terminal amino acid is the first amino acid (residue). When naming, just add the word "acyl" after each amino acid name.
Representation and naming of tripeptides
Name: Alanylglycylaspartate display method: Ala----Gly----Asp(AGD) Asp----Gly----Ala (DGA)
Nonribosomally synthesized peptides and ribosomally synthesized peptides
Natural active peptide----Glutathione
Composition: L-glutamic acid, L-cysteine and glycine Glutamic acid forms a peptide bond from γ-carboxyl group
Function: 1. The reducing properties of glutathione sulfhydryl groups protect the activity of proteins containing sulfhydryl groups and enzymes with sulfhydryl groups as active groups, and resist oxidation; 2. The reaction of reduced glutathione with H₂O₂ or other organic oxides can also play a detoxifying effect.
Physicochemical properties of oligopeptides
sexual dissociation
Chirality and Optical Activity
Biuret reaction*
Generally, compounds containing two carbamoyl groups (ie, peptide bonds: -CO-NH-) in the molecule react with alkaline solutions to form purple or blue-violet complexes.
hydrolysis
Have specific biological functions (e.g. glutathione)
protein molecular structure
protein definition
A biological macromolecular substance with a certain spatial structure composed of different amino acids connected by peptide bonds (the number of amino acids is greater than 50)
"Central Dogma"
The function of DNA lies in its primary structure: the function of protein lies in its three-dimensional structure
protein diversity
diversity of composition
Proteins may contain one or more peptide chains (simple proteins)
Proteins may contain non-protein components (binding proteins)
Variety of sizes
structural diversity
Examples: (1) Collagen - fibrillar protein (2) Myoglobin - globular protein (3) Bacteriorhodopsin - membrane protein
Diversity of functions
Polypeptide chain cofactors (metal ions, coenzymes and prosthetic groups) or other modifications
protein structure hierarchy
In the plane of the peptide, the two Cα can be in cis or trans configuration. The trans configuration is more stable than the cis configuration. (Except Pro)
primary structure of protein
(1) It is the covalent (peptide bond) structure of protein (2) It is unique for each protein (3) Determined by the nucleotide sequence of the gene encoding it (4) It is a form of genetic information (5) Writing is always from N end to C end
protein secondary structure
Definition: The main chain skeleton of the polypeptide chain itself (excluding the R group) (locally) is regularly folded and coiled in space, which is determined by hydrogen bonds between non-side chain groups of amino acid residues.
Peptide plane and dihedral angle
Configuration and Conformation
alpha-helix
Structural points
Factors affecting the formation of α-helical structure
Types of alpha helices
β-sheet
Fold type
parallel fold
antiparallel folding
Structural points
Tertiary structure of protein
Definition: Tertiary structure refers to the polypeptide chain that is further coiled, curled and folded on the basis of the secondary structure to form a complete structure mainly maintained by secondary bonds (sometimes disulfide bonds and metal coordination bonds) through amino acid side chains. three-dimensional structure. Stable tertiary structure mainly includes hydrogen bonds, hydrophobic bonds, ionic bonds, and van der Waals forces. Tertiary structure usually consists of motif and domain.
Motif
beta hairpin loop
coiled coil
βαβ
four helix bundle
Methods for determining the tertiary structure of proteins
X-ray crystal diffraction
Magnetic resonance imaging (NMR) (less than 120aa)
Cryo-electron microscopy (CryoEM)
Six models of protein three-dimensional structures
quaternary structure of protein
protein subunits
subtopic
protein folding
Definition of protein folding Basic rules of protein folding Chaperone Diseases related to protein misfolding
Protein properties
G
sexual dissociation
Colloidal properties
precipitation reaction
Denaturation and hydrolysis of proteins
protein color reaction