Biology Flashcards
Changes in environmental concentration of carbon dioxide or hydrogen ions affect this molecule’s binding curve. A substitution of glutamine for valine in this protein can cause it to (*) aggregate into long strands.
Hemoglobin
The presence of a glycated form of this molecule denoted “A1c” can be used to diagnose diabetes. his molecule’s four subunits can each assume a tense T or relaxed R conformation.
Hemoglobin
In fish, the Root effect occurs in this protein, embryonic types of which are named Portland and Gower.
Hemoglobin
A breakdown product of this protein is conjugated to glucuronate for excretion in bile and is called bilirubin. Thalassemia is caused by the abnormal production of this protein, which consists of two alpha and two beta subunits.
Hemoglobin
Cells that contain this molecule include the A9 dopaminergic neurons in the substantia nigra, alveolar cells, and mesangial cells in the kidney.
Hemoglobin
This protein is found in all vertebrates, except for the fish family Channichthyidae.
Hemoglobin
The amount of this protein is quantified using Drabkin’s reagent. An abnormality in the production of this molecule is known as (*) thalassemia.
Hemoglobin
One allosteric ligand to this molecule is nitric oxide, which binds onto thiol groups to form S-nitrosothiol. Abnormal production of this molecule, which is affecting by an autosomal recessive mutation called Lepore syndrome, characterizes a group of inherited disorders called thalassemias.
Hemoglobin
This protein’s transport of hydrogen increases its activity in a “shift” named for a Danish physiologist. This protein changes conformation in a classic example of allosteric modulation via cooperative binding.
Hemoglobin
Two forms of this protein absorb light equally at an isosbestic [iso-S’BEST-ic] point of around 800 nanometers.
Hemoglobin
The change between those two forms of this protein is detected by a T2-weighted signal in BOLD [bold] contrast, which is utilized by fMRI [F-M-R-I]. Histidine residues are pulled a fraction of an angstrom towards the plane of structures made of four pyrroles when this protein binds its substrate.
Hemoglobin
The central atom of a molecule in this protein is usually coordinated to a histidine residue and not in plane, but the central atom moves in plane when its sixth coordination site is occupied.
Hemoglobin
The Hill equation was originally developed by studying cooperative binding of this protein, which causes it to transition from the tense
Hemoglobin
The SNO residue on the beta-93 cysteine of this protein helps transfer nitric oxide to the cell membrane.
Hemoglobin
One conformation of this protein is stabilized by an ion pair between His-146 and Asp-94 as well as ion pairs formed by carbamates formed from this protein’s N-terminal residues.
Hemoglobin
A version of this protein containing tightly-packed gamma subunits is known as its “fetal” type.
Hemoglobin
Richard Marlar found this protein at the pre-historic Cowboy Wash site in fossilized fecal matter. This protein, which has a Hill coefficient of one, contains a single polypeptide chain of 153 amino acid residues.
myoglobin
This protein was isolated from sperm whales by John Kendrew, who made it the first protein to have its three-dimensional structure obtained using X-ray diffraction.
myoglobin
. The Gower form of this molecule is found in embryos and improper synthesis of it can lead to beta thalassemia.
Hemoglobin
The Haldane effect describes this protein’s interaction with carbon dioxide and its behavior in acidic environments is described by the (*) Bohr effect.
Hemoglobin
The color of Riftia plumes comes from several complex variants of this protein.Compared to the Aymara, Tibetans show a less severe reaction norm of this protein to altitude.
Hemoglobin
The difference in magnetic susceptibility between two forms of this protein is responsible for the BOLD signalling used in fMRI imaging. The Portland and Gower forms of this protein are found in embryos
Hemoglobin
2,3-PBG allosterically causes this protein to release its substrate, and a decrease in pH reduces the binding affinity of this protein with its main substrate according to the Bohr effect.
Hemoglobin
One variant of this molecule is called D-Punjab and is notably prevalent among Uyghurs (WEE-gurs). Another variant of this molecule has fusion chains due to meiotic (my-AH-tick) crossover with the delta region.
Hemoglobin