structure in which a pair of invariant histidine residues act as axial ligands to the haem iron. The reduction potential of gCYTb5-I is 165 mV vs. SHE and is relatively low compared to most values (110 to +80 mV) for this class of protein. The amino- and carboxy-terminal sequences that flank the central haembinding core of the Giardia cytochromes are highly charged and differ from those of other family members. A core gCYTb5-I variant lacking these flanking sequences was also able to bind haem
Premium Amino acid Protein Giardia lamblia
Ethanoic Acid Advantages: Ethanoic acid is non-toxic and is a weak acid‚ meaning it will not do any damage to most surfaces as it does not corrode or bind to other metals‚ therefore can be easily removed through washing or rinsing it. Disadvantages: Ethanoic Acid is the slowest de-scaler of the three acids‚ and is therefore the least effective. It also may cause an unpleasant smell‚ and can have a negative effect on the taste of coffee meaning one would need to spend longer time rinsing and cleaning
Premium Acetic acid Acid Vinegar
Home | About Us | pmtPHYSICS1. Two vectors of equal magnitude A on addition give a resultant vector of magnitude A. Then the magnitude of their difference vector is (a) (b) 2A(c) zero (d) 2. From the top of a tower 40 m high‚ a ball is projected upwards with a speed of 20 m s1 at an angle 30 with the horizontal. The total time of flight to hit the ground is (g = 10 m s2)(a) 8 s (b) 4 s (c) 6 s (d) 3 s3. To a boy in air‚ a fish in water viewed normally from air appears to be at 0.6 m from the surface
Premium Amino acid Endoplasmic reticulum Magnetism
Acid Rain and its Chemistry Acid rain is a type of pollution that is becoming a major threat to our planet and is need of attention. Acid rain has significantly increased ever since the industrial revolution‚ and now around the world‚ countries like Russia‚ China‚ and those in Europe are facing increasing levels of acidity in their rain. Not only is it becoming more acidic but it is also spreading by the pumping of sulfuric gasses deeper into the atmosphere from of the use of taller smokestacks
Free Oxygen Acid rain Sulfuric acid
˚ N-1432 As‚ Norway Received 31 January 2001; received in revised form 10 May 2001; accepted 11 June 2001 Abstract Bacteriocins are antibacterial proteins produced by bacteria that kill or inhibit the growth of other bacteria. Many lactic acid bacteria ŽLAB. produce a high diversity of different bacteriocins. Though these bacteriocins are produced by LAB found in numerous fermented and non-fermented foods‚ nisin is currently the only bacteriocin widely used as a food preservative. Many
Premium Cheese Bacteria Amino acid
mg‚ Zn 0.7 mg‚ vitamin A 56 IU‚ thiamin 0.03 mg‚ riboflavin 0.03 mg‚ niacin 0.47 mg‚ folate 93 μg‚ ascorbic acid 7.7 mg (USDA‚ 2002). The young leaves and shoots contain per 100 g: water 90 g‚ energy 251 kJ (60 kcal)‚ protein 4.0 g‚ fat 0.4 g‚ carbohydrate 4.7 g‚ fibre 1.2 g‚ Ca 58 mg‚ P 108 mg‚ Fe 2.5 mg‚ vitamin A 615 μg‚ thiamin 0.08 mg‚ riboflavin 0.18 mg‚ niacin 1.1 mg‚ ascorbic acid 16 mg. The tuberous roots contain per 100 g edible portion (73% of total): water 80 g‚ energy 331 kJ (79 kcal)
Premium Amino acid Nutrition Vitamin
in the cell.( Williams‚ G.(2000))’Proteins are big compound with large molecular masses’’(Williams‚ G.(2000)) whose main chemical constituents are hydrogen‚ carbon ‚oxygen and nitrogen. A protein structure consists of a specific sequence of amino acids called the primary structure‚ this particular sequence determines the secondary structure of the protein which can be α-helix or β-pleated sheet. This then further folds to form the tertiary structure . The primary structure determines the eventual
Premium Protein Amino acid
garlic that is considered as an effective chemical that can kill insects and pests is its ALICIN‚ it is not seen in its natural state but when shopped and crushed‚ the enzyme ALLINASE acts on the chemical ALLIIN converting it to ALLICIN. ALIIN is an amino acid that doesn’t build proteins. Thus‚ it could kill insects becauseof its smell which humans dislike too. Furthermore‚ the garlic helps the insecticide to be more secure and natural. For the siling labuyo(capsicum annuum)which can be purchased at any
Premium Insect Amino acid Insecticide
In our experiment‚ we will be testing three different proteins to see if they denature at the same temperature. A protein is a molecule containing amino acids created in ribosomes that have many functions‚ including being an enzyme and transporter‚ structuring‚ translating genetic information‚ and serving as a channel for charged molecules to pass through the cell membrane. As a molecule‚ a protein is shaped like a coil (Food Science Basics 2014). Denaturation is when a protein’s shape changes due
Premium Protein Enzyme Amino acid
Polypeptides‚ better known as proteins‚ carry out nearly all of a cell’s functions. A protein is made up of at least one or more amino acid polymers. The necessity of proteins for life is unequivocal‚ not only do they help to form the structures of cells but they act as enzymes in reactions of the body1. Enzymes are biological catalysts that lower the amount of activation energy needed in carrying out biochemical reactions1. Enzymes are responsible for almost every reaction that occurs in a cell
Premium Protein Metabolism DNA