Oct 24, 2017 · Structural overview. GAA is synthesized as a 110 kDa glycoprotein, which is targeted to the lysosome via the mannose-6-phosphate receptor and undergoes in the late endosomal/lysosomal compartment ...Interactions between α-synuclein fibrils and lipids have been associated with the development of Parkinson’s disease. This cryo-EM study reveals structural details of these interactions and ...where do begin on the Pro's of Alpha Structural - great work environment - goal driven company - excellent management - great pay -training an advancement opportunities -open lines between all staff -employee appreciation valuing our time and dedication as well as our physical and emotion health -full kitchen. Specialties: Providing structural and geotechnical repairs and upgrades with our signature design/build approach for over 30 years. We service single-family, multi-family, industrial and commercial properties. Established in 1988. * #1,758 on 2019 Inc. 5000 list * #29 Fastest Growing Private Company in L.A. - L.A. Business Journal * Angie's List Super Service Award (2009-2019) * Talk of the ... Jan 18, 2021 · Structural differences between the Form I and Form II filaments. The respective assemblies of Form I and Form II epitomized an unusual packing motif, recently designated as a cross-α structure 36 ... Alpha Structural will design, engineer, acquire the permitting needed and retrofit the structure, all in-house. Our team is highly-qualified and has extensive experience with complex soft story retrofitting in Los Angeles. Call us today at (323) 258-5482 to schedule an inspection! Top 10 Best Alpha Structural in Los Angeles, CA - September 2023 - Yelp - Alpha Structural, Alpha Structural, Inc. Orange County, The Foundation Works, White Castle Construction, LA Private Eyes Geotechnical Engineers, Pacific Outdoor Living, Omega Structural, Avalin Seismic Construction Company, Yetter Inspection … The engineers at Alpha Structural can customize a drainage system to the layout of your home, guiding water away from the home and to the street via underground drain lines, concrete “swales”, landscape elevation grading etc. Not only is this a practical and cost-effective deterrent against water damage, it bolsters your home against the ... Structural Contradiction by Government Alpha, released 25 February 2019 1. I. Refractive 2. II. Dissolution 3. III. Liquefaction 4. IV. Vaporizable 5. V. Live Relay Collapse at Bushbash 6. VI. Live Relay Collapse at Soup After getting the pleasure of witnessing Yasutoshi play live in studio at KFJC, and then at the … Alpha Structural, Inc. Headquarters: 8334 Foothill Blvd. Sunland, CA 91040 Office: 1638 Colorado Blvd #201, Los Angeles, CA 90041 Orange County Office: 23031 E. La Palma Ave. Yorba Linda, CA 92887 Alpha Structural, Inc. Headquarters: 8334 Foothill Blvd. Sunland, CA 91040 Office: 1638 Colorado Blvd #201, Los Angeles, CA 90041 Orange County Office: 23031 E. La Palma Ave. Yorba Linda, CA 92887 Nov 22, 2019 · The liver X receptors (LXRs) alpha (LXRα, NR1H3) and beta (LXRβ, NR1H2) are members of the nuclear hormone receptor (NHR) superfamily of transcription factors that function as heterodimers with ...In non-muscle cells, alpha-actinin is found along the actin filaments and in adhesion sites. In striated, cardiac and smooth muscle cells, it is localized at the Z-disk and analogous dense bodies, where it forms a lattice-like structure and stabilizes the muscle contractile apparatus. Besides binding to actin filaments alpha-actinin …Out with our Alpha Structural, Inc. #orangecounty team setting steel through the roof in Lake Forest. #crane #structuralsteel #steelconstruction… Liked by Nick KurtzDec 27, 2023 · where do begin on the Pro's of Alpha Structural - great work environment - goal driven company - excellent management - great pay -training an advancement opportunities -open lines between all staff -employee appreciation valuing our time and dedication as well as our physical and emotion health -full …For over 30 years now, Alpha Structural, Inc. has developed a powerful reputation as the #1 Foundation Services, Landslide repair and Earthquake Retrofitting Contractor in the …Schedule an engineering inspection to troubleshoot the issue. If your structure has cracked walls or a sagging roof, call on a highly trained structural engineer at Alpha Omega to check it out. We’ll respond quickly to evaluate the structural integrity of your home. During our engineering inspection, we’ll look at every part of your ...Sep 2, 2022 · Alpha Structural quickly grew from one crew to many, to what it is today: the leading expert in structural engineering and construction. From seismic retrofits for commercial properties and single-family homes to large retaining walls, foundation replacements, underpinning, hillside collapses and bridges, they have expertly done it all in their ... Amino acids are the monomers that make up proteins. Each amino acid has the same core structure, which consists of a central carbon atom, also known as the alpha (α) carbon, bonded to an amino …See reviews for Alpha Structural, Inc. in Sunland, CA at 8334 Foothill Blvd from Angi members or join today to leave your own review.Jan 25, 2006 · SAXS and light-scattering experiments suggest that in alcohol/water mixtures alpha-zein exists as an oblong structure with an axial ratio of approximately 6:1. Furthermore, ultracentifugation, birefringence, dielectric, and viscosity studies indicate that alpha-zein behaves as an asymmetric particle with an axial ratio of …Alpha Structural, Inc. Headquarters: 8334 Foothill Blvd. Sunland, CA 91040 Office: 1638 Colorado Blvd #201, Los Angeles, CA 90041 Orange County Office: 23031 E. La Palma Ave. Yorba Linda, CA 92887See reviews for Alpha Structural, Inc. in Sunland, CA at 8334 Foothill Blvd from Angi members or join today to leave your own review. Alpha Structural will design, engineer, acquire the permitting needed and retrofit the structure, all in-house. Our team is highly-qualified and has extensive experience with complex soft story retrofitting in Los Angeles. Call us today at (323) 258-5482 to schedule an inspection! Alpha Structural will design, engineer, acquire the permitting needed and retrofit the structure, all in-house. Our team is highly-qualified and has extensive experience with complex soft story retrofitting in Los Angeles. Call us today at (323) 258-5482 to schedule an inspection! Protein secondary structure is the local spatial conformation of the polypeptide backbone excluding the side chains. [1] The two most common secondary structural elements are alpha helices and beta sheets, though beta turns and omega loops occur as well. Secondary structure elements typically spontaneously form as an intermediate before the ...Aug 20, 2019 · About Structural Alpha. In Structural Alpha, author Sal Tiano identifies a set of principles that have been, and continue to be, instrumental in his success as a wealth manager, and presents actionable tips on how to grow your own elite wealth management business based on his concept of “structural alpha” that he has developed over the years. Glassdoor has 13 Alpha Structural reviews submitted anonymously by Alpha Structural employees. Read employee reviews and ratings on Glassdoor to …The primary structural analyses and the secondary structural predictions also suggest a close relationship among enzymes with three-dimensional structures which catalyze one of the four reactions. They possess a catalytic (beta/alpha)8-barrel as observed in the crystal structure of alpha-amylases, cyclodextrin …Alpha Structural, Inc. Headquarters: 8334 Foothill Blvd. Sunland, CA 91040 Office: 1638 Colorado Blvd #201, Los Angeles, CA 90041 Orange County Office: 23031 E. La Palma Ave. Yorba Linda, CA 92887Alpha Structural is a leading company in foundation and hillside repairs, with over 25 years of experience and a license to engineer and build any type of project. Learn why you should choose them for your foundation …For over 25 years, Alpha Structural, Inc. has developed a powerful reputation as the #1 Foundation Repair, Foundation Replacement, Hillside Repair, Landslide Repair and Earthquake Retrofitting Contractor in the Santa Ana area. Do you have foundation problems? In every aspect of life, preventive maintenance is much …Fig. 1: Comparison of the structural complexities of naturally occurring and de novo designed proteins. a, b, Structures of myoglobin ( a) and representative de novo designed all-α proteins ( b ...Aug 10, 2022 · Glucose, also known as dextrose is the most common simple sugar (monosaccharide). It has two isomeric structures, i.e. dextrose-(D) glucose and Lactose-(L) glucose. The dextrose-(D) glucose contains two further isomers, i.e. alpha (α) and beta (β) glucose. The key difference between alpha (α) and beta (β) …Feb 29, 2024 · RMSD (root mean square deviation) is computed between aligned pairs of the backbone C-alpha atoms in superposed structures in Å. The lower the RMSD, the better the structure … Alpha Structural, Inc. Headquarters: 8334 Foothill Blvd. Sunland, CA 91040 Office: 1638 Colorado Blvd #201, Los Angeles, CA 90041 Orange County Office: 23031 E. La Palma Ave. Yorba Linda, CA 92887 Specialties: Providing structural and geotechnical repairs and upgrades with our signature design/build approach for over 30 years. We service single-family, multi-family, industrial and commercial properties. Established in 1988. * #1,758 on 2019 Inc. 5000 list * #29 Fastest Growing Private Company in L.A. - L.A. Business Journal * Angie's List Super Service Award (2009 …Alpha Structural, Inc. | 1,023 followers on LinkedIn. Southern California’s premier structural/ geotechnical design/ build engineering and construction specialist. | For over …The Structural Assessor in Alpha Structural, Inc. is the one that will assess the property and recommend any repairs needed. Here at Alpha the Structural Assessor is senior to our engineering department in that they are the one to assess a property, design the solution and work out the proper budget for that repair.Physical Properties of Glucose. Glucose is a white crystalline solid with a melting point of 146⁰C. When this glucose molecule is crystallised with cold water, it forms glucose monohydrate having …Fig. 1: Cryo-EM structures of human α7 nicotinic receptor in different states. a – c Cryo-EM maps of human α7 in apo ( a ), EVP-bound ( b) and EVP/PNU-bound ( c) states. Chemical structures of ...Physical Properties of Glucose. Glucose is a white crystalline solid with a melting point of 146⁰C. When this glucose molecule is crystallised with cold water, it forms glucose monohydrate having …Alpha Structural, Inc. is a recognized leader in the engineering and construction of foundation, hillside repairs and soft story retrofitting. Having built many custom hillside homes in the 1980s, David Tourjé, the Owner and Chief Executive Officer of the company, decided to specialize in foundation and hillside repairs due to the increasing ... Alpha Structural, Inc. Headquarters: 8334 Foothill Blvd. Sunland, CA 91040 Office: 1638 Colorado Blvd #201, Los Angeles, CA 90041 Orange County Office: 23031 E. La Palma Ave. Yorba Linda, CA 92887 Protein structures are made by condensation of amino acids forming peptide bonds. The sequence of amino acids in a protein is called its primary structure. The secondary structure is determined by the dihedral angles of the peptide bonds, the tertiary structure by the folding of protein chains in space.Call us today to schedule an inspection or request an estimate. (323) 258-5482. Request an Assessment or Estimate ». Alpha Structural, Inc. is a licensed, bonded and insured company. The #1 foundation repair contractor in Los Angeles. Foundation repair, foundation inspection.Alpha Structural: A structural engineering and construction firm that has been providing structural repairs and upgrades to Southern California for over three decades.Alpha Structural completed a foundation and waterproofing job on my home in 2019. The cost of the job was over $20,000. Last month my home sustained over $15,000 worth of interior damage due to ...Alpha-keratin, or α-keratin, is a type of keratin found in mammalian vertebrates.This protein is the primary component in hairs, horns, claws, nails and the epidermis layer of the skin. α-keratin is a fibrous structural protein, meaning it is made up of amino acids that form a repeating secondary structure. The secondary structure of α-keratin is very similar to that of a …Alpha Structural quickly grew from one crew to many, to what it is today: the leading expert in structural engineering and construction. From seismic retrofits for commercial properties and single-family homes to large retaining walls, foundation replacements, underpinning, hillside collapses and bridges, they have expertly done it all in their 30 years in …Call us today to schedule an inspection or request an estimate. (323) 258-5482. Request an Assessment or Estimate ». The following list represents just some of the types of foundation repair we specialize in: Basement Expansion. Basement Waterproofing. Brick Foundation Repair. Caissons. Concrete Foundation Repair.The Structural Assessor in Alpha Structural, Inc. is the one that will assess the property and recommend any repairs needed. Here at Alpha the Structural Assessor is senior to our engineering department in that they are the one to assess a property, design the solution and work out the proper budget for that repair.Alpha-blockers are medications used in the management and treatment of essential hypertension, benign prostatic hyperplasia (BPH), and pheochromocytoma. This activity reviews the indications, contraindications, activity, adverse events, and other key elements of alpha-blocker therapy in the clinical …Alpha Structural's foundation repair customer reviews. Find out why they say we're the #1 foundation repair contractor in Los Angeles. (323) 258-5482 Menu. Serving Los Angeles and Southern California for Foundation Repair Since 1993. Call …The tertiary structure of a protein is a description of the way the whole chain (including the secondary structures) folds itself into its final 3-dimensional shape. This is often simplified into models like the following one for the enzyme dihydrofolate reductase. Enzymes are, of course, based on proteins.Alpha Structural is the most experienced soft story retrofitting company in Santa Monica, with expert in-house structural engineers & builders ready to bring your building to code. (323) 258-5482 Menu. Serving Los Angeles and Southern California for Foundation Repair Since 1993 ...Physical Properties of Glucose. Glucose is a white crystalline solid with a melting point of 146⁰C. When this glucose molecule is crystallised with cold water, it forms glucose monohydrate having …Feb 29, 2024 · RMSD (root mean square deviation) is computed between aligned pairs of the backbone C-alpha atoms in superposed structures in Å. The lower the RMSD, the better the structure … Alpha Structural, Inc. Headquarters: 8334 Foothill Blvd. Sunland, CA 91040 Office: 1638 Colorado Blvd #201, Los Angeles, CA 90041 Orange County Office: 23031 E. La Palma Ave. Yorba Linda, CA 92887 Alpha Structural, Inc. Headquarters: 8334 Foothill Blvd. Sunland, CA 91040 Office: 1638 Colorado Blvd #201, Los Angeles, CA 90041 Orange County Office: 23031 E. La Palma Ave. Yorba Linda, CA 92887Aug 10, 2023 · To validate our proposal, we propose an implementation [].We performed two kinds of experiments. First, \(\alpha \)-HC and HC were tested on artificial networks called LFR networks [] by changing a parameter called mixing parameter \(\mu \) from 0.1 to 0.9. The parameter \(\mu \) allows to control the …Alpha Structural, Inc. is a leader in the field of balcony repairs. With over 25 years of experience, we have been supporting property owners with repairing and improving their structural needs and bringing their buildings up to par with today’s strict building codes. Alpha Structural is considered among the best companies at balcony repairs ...Here at Alpha Structural, we are always looking for new and exciting members to join our staff. Please see below for our current job opportunities. Construction Laborer: Alpha Structural, Inc is looking for construction laborer that wants to work hard outside all day. Enough work to keep you busy full time. Alpha Structural, Inc. Headquarters: 8334 Foothill Blvd. Sunland, CA 91040 Office: 1638 Colorado Blvd #201, Los Angeles, CA 90041 Orange County Office: 23031 E. La Palma Ave. Yorba Linda, CA 92887 Alpha Structural, Inc. is a recognized leader in the engineering and construction of foundation and hillside repairs. Having built many custom hillside homes in the 1980s, David Tourjé, the Owner and Chief Executive Officer of the company, decided to specialize in foundation repairs and hillside repairs due to the increasing demands for this type of work.Specialties: Providing structural & hillside repairs with our signature design to build approach for over 25 years. We service single-family, multi-family, industrial and commercial properties. Established in 1988. * #1,758 on 2019 Inc. 5000 list * #29 Fastest Growing Private Company in L.A. - L.A. Business Journal * Angie's List …May 9, 2002 · The crystal structure of a hydroxylated HIF-1 alpha peptide bound to VCB (pVHL, elongins C and B) and solution binding assays reveal a single, conserved hydroxyproline-binding pocket in pVHL. Optimized hydrogen bonding to the buried hydroxyprolyl group confers precise discrimination between …Alpha Structural, Inc. is a licensed, bonded and insured company. The #1 foundation repair contractor in Los Angeles. Foundation repair, foundation inspection (323) 258-5482 Menu. Serving Los Angeles and Southern California for Foundation Repair Since 1993. Call us …Specialties: Providing structural & hillside repairs with our signature design to build approach for over 25 years. We service single-family, multi-family, industrial and commercial properties. Established in 1988. * #1,758 on 2019 Inc. 5000 list * #29 Fastest Growing Private Company in L.A. - L.A. Business Journal * Angie's List …For over 25 years, Alpha Structural, Inc. has developed a powerful reputation as the #1 Design/Build firm in Los Angeles. With over 850 years of combined professional experience in our engineering department alone, we can design any and all of your structural repairs and upgrades, in addition to building them. Alpha Structural, Inc. has been jacking and lifting homes for over 25 years. “House leveling”, jack/lifting or floor leveling is done on a case-by-case basis unique to each home. By taking advantage of our hard-won know-how, you gain the most efficient and innovative approach to house leveling. Alpha Structural, Inc. has been jacking and lifting homes for over 25 years. “House leveling”, jack/lifting or floor leveling is done on a case-by-case basis unique to each home. By taking advantage of our hard-won know-how, you gain the most efficient and innovative approach to house leveling. Expert Career Advice. Glassdoor gives you an inside look at what it's like to work at Alpha Structural, including salaries, reviews, office photos, and more. This is the Alpha Structural company profile. All content is posted anonymously by employees working at Alpha Structural. See what employees say it's like to work at Alpha Structural.Alpha Structural, Inc. is a leader in the field of balcony repairs. With over 25 years of experience, we have been supporting property owners with repairing and improving their structural needs and bringing their buildings up to par with today’s strict building codes. Alpha Structural is considered among the best companies at balcony repairs ...Jan 25, 2006 · SAXS and light-scattering experiments suggest that in alcohol/water mixtures alpha-zein exists as an oblong structure with an axial ratio of approximately 6:1. Furthermore, ultracentifugation, birefringence, dielectric, and viscosity studies indicate that alpha-zein behaves as an asymmetric particle with an axial ratio of …But remember, even in this case, all the H-bonds holding the alpha and beta structures together are intramolecular. In a parallel beta sheet structure, the optimal H bond pattern leads to a less extended structure (phi/psi of -119, +113) than the optimal arrangement of the H bonds in the antiparallel structure (phi/psi of …Specialties: Providing structural & hillside repairs with our signature design to build approach for over 25 years. We service single-family, multi-family, industrial and commercial properties. Established in 1988. * #1,758 on 2019 Inc. 5000 list * #29 Fastest Growing Private Company in L.A. - L.A. Business Journal * Angie's List …Specialties: Providing structural and geotechnical repairs and upgrades with our signature design/build approach for over 30 years. We service single-family, multi-family, industrial and commercial properties. Established in 1988. * #1,758 on 2019 Inc. 5000 list * #29 Fastest Growing Private Company in L.A. - L.A. Business Journal * Angie's List Super Service Award (2009 … Alpha Structural, Inc. Headquarters: 8334 Foothill Blvd. Sunland, CA 91040 Office: 1638 Colorado Blvd #201, Los Angeles, CA 90041 Orange County Office: 23031 E. La Palma Ave. Yorba Linda, CA 92887 Alpha Structural, Inc. 3,734 likes · 773 talking about this · 69 were here. Thank you for visiting Alpha Structural, Inc.'s Facebook profile – the ONLY company in Los Angeles County licensed to... Why Structural Armor Composite Fiber Reinforced Building Materials? State-of-the-Art in Non-Corrosive Pool Walls . Fully Customizable in Shape and Size. Any sunledge, ... combined with experienced and seasoned leadership give the Only Alpha Pool Products brand the leading edge in manufacturing construction …Alpha Structural is a leading company in foundation and hillside repairs, with over 25 years of experience and a license to engineer and build any type of project. Learn why you should choose them for your foundation … Alpha Structural, Inc. Headquarters: 8334 Foothill Blvd. Sunland, CA 91040 Office: 1638 Colorado Blvd #201, Los Angeles, CA 90041 Orange County Office: 23031 E. La Palma Ave. Yorba Linda, CA 92887 Alpha Structural, Inc. Headquarters: 8334 Foothill Blvd. Sunland, CA 91040 Office: 1638 Colorado Blvd #201, Los Angeles, CA 90041 Orange County Office: 23031 E. La Palma Ave. Yorba Linda, CA 92887 Top 10 Best Alpha Structural, Inc in Sunland, Los Angeles, CA 91040 - March 2024 - Yelp - Alpha Structural, Inc. Orange County, Alpha Structural, Omega StructuralThe ER α DBD : ERE structures have been studied extensively by several biophysical techniques [13, 23, 55, 58]. Three-dimensional structure of the ER α has been solved using nuclear magnetic resonance as well as X-ray crystallographic techniques both alone and in complex with DNA (Figure 1(b)) [13, …Foundation Replacement in Los Angeles. Don't make the expensive mistake of ignoring foundation repair warning signs. Alpha Structural's in-house engineers and builders …
May 2, 2018 · The α4β2 subtype of the nicotinic acetylcholine receptor is the most abundant isoform in the human brain and is the principal target in nicotine addiction. This pentameric ligand-gated ion .... Amy lau
Call us today to schedule an inspection or request an estimate. (323) 258-5482. Request an Assessment or Estimate ». The #1 sister foundation repair company in SoCal. Sister foundation repair gallery of Alpha Structural's foundation repair work.AlphaFold2 and the future of structural biology. To the Editor — AlphaFold2 is a machine-learning algorithm for protein structure prediction that has now been used to obtain hundreds of ...The engineers at Alpha Structural can customize a drainage system to the layout of your home, guiding water away from the home and to the street via underground drain lines, concrete “swales”, landscape elevation grading etc. Not only is this a practical and cost-effective deterrent against water damage, it bolsters your home against the ...Jul 3, 2023 · Alpha-blockers are medications used in the management and treatment of essential hypertension, benign prostatic hyperplasia (BPH), and pheochromocytoma. This activity reviews the indications, contraindications, activity, adverse events, and other key elements of alpha-blocker therapy in the clinical …Sep 6, 2023 · FSD measurements that capture spatial and temporal change in forest structure are needed to track changes in structural diversity equivalent to alpha, beta, and gamma diversity (Fotis, Morin, et al., 2018; Fotis, Murphy, et al., 2018; Latifi & Valbuena, 2019). It is also necessary to invest efforts in the identification, …Long, H. et al. Wild-type α-synuclein inherits the structure and exacerbated neuropathology of E46K mutant fibril strain by cross-seeding. Proc. Natl Acad. Sci. USA …Alpha Structural's structural accessor shows the level of degradation to this homes foundation. Needless to say, this home is in dire need of a foundation repair. Call us today to schedule an inspection or request an estimate (323) 258-5482The engineers at Alpha Structural can customize a drainage system to the layout of your home, guiding water away from the home and to the street via underground drain lines, concrete “swales”, landscape elevation grading etc. Not only is this a practical and cost-effective deterrent against water damage, it bolsters your home against the ... Alpha Structural is the top hillside repair contractor in Los Angeles, offering slope repair and slope reinforcement. In Los Angeles and Orange Counties, many hillside homes were built in the 1950s and 1960s with deepened foundation systems that were deemed to be deep enough to withstand earthquakes and weather storms. Long, H. et al. Wild-type α-synuclein inherits the structure and exacerbated neuropathology of E46K mutant fibril strain by cross-seeding. Proc. Natl Acad. Sci. USA …To solve the structure, we formed the α 1A AR complex with Nb29 and obtained the initial cryo-EM structure at 4 Å resolution, and found that Nb29 binds to the extracellular region of the α 1A ...Aug 10, 2022 · Glucose, also known as dextrose is the most common simple sugar (monosaccharide). It has two isomeric structures, i.e. dextrose-(D) glucose and Lactose-(L) glucose. The dextrose-(D) glucose contains two further isomers, i.e. alpha (α) and beta (β) glucose. The key difference between alpha (α) and beta (β) …Aug 10, 2022 · Glucose, also known as dextrose is the most common simple sugar (monosaccharide). It has two isomeric structures, i.e. dextrose-(D) glucose and Lactose-(L) glucose. The dextrose-(D) glucose contains two further isomers, i.e. alpha (α) and beta (β) glucose. The key difference between alpha (α) and beta (β) … If your property is showing signs of foundation problems and you are in need of a trusted foundation replacement service, then visit us at Alpha Structural or contact us at (323) 258-5482 to schedule an appointment. Concrete Slab Foundation Replacement With Alpha Structural. At Alpha Structural, professionalism is a way of life. Alpha Structural's estimated annual revenue is currently $16.7M per year. Alpha Structural 's estimated revenue per employee is $ 261,000Employee Data. Alpha Structural has 64 Employees. Alpha Structural; grew their employee count by 36%. last year. Alpha Structural Competitors & AlternativesAdd Company.Protein - Amino Acids, Structure, Function: The common property of all proteins is that they consist of long chains of α-amino (alpha amino) acids. The general structure of α-amino acids is shown in . The α-amino acids are so called because the α-carbon atom in the molecule carries an amino group (―NH2); the α-carbon atom also carries a carboxyl group (―COOH)..