Red blood cells

Red blood cells or erythrocytes (96%). In mammals, mature red blood cells lack a nucleus and organelles. They contain the blood's hemoglobin and distribute oxygen.
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red blood cells, whose main purpose is the transport of oxygen
white blood cells, which act as immune cells and fight infection ...
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red blood cells (RBCs) or erythrocytes
platelets or thrombocytes
five kinds of white blood cells (WBCs) or leukocytes
Three kinds of granulocytes ...
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red blood cells: also known as erythrocytes; cells that contain hemoglobin to transport oxygen.
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Red blood cells, also known as erythrocytes, are flattened, doubly concave cells about 7 µm in diameter that carry oxygen associated in the cell's hemoglobin. Mature erythrocytes lack a nucleus.
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When the red blood cells break apart. Hemolysis can cause interference for certain assays.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
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Apart from on red blood cells, the ABO antigen is also expressed on the glycoprotein von Willebrand factor (vWF), which participates in hemostasis (control of bleeding).
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Once they invade red blood cells, they begin feeding on the red cell's hemoglobin-that's the iron-carrying material that causes red blood cells to be red-and they feed on the hemoglobin and grow and divide to about 16 parasites in each cell.
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Sickle cell anemia -- an hereditary, chronic form of hemolytic anemia characterized by breakdown of the red blood cells; ...
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This creates a "sticky patch" when the hemoglobin is deoxygenated, causing hemoglobin molecules to polymerize and deform the red blood cells.
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[footnote: Thalassemia major (the most serious form) negatively affects the production of red blood cells (hemoglobin) such that the tissues have insufficient oxygen, thereby leading to anemia.
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Hemoglobin is contained within red blood cells. When the oxygen concentration in the hemoglobin molecules becomes low, the molecules stick together forming long rods that distort the cell (picture below).
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Variation at a single locus determines whether red blood cells are shaped normally or sickled. If a human has two alleles for sickle-cell, he/she develops anemia -- the shape of sickle-cells precludes them carrying normal levels of oxygen.
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the oxygen carrying molecule of red blood cells; it is made up of four polypeptide chains (2 alpha type and 2 beta type) and non-protein molecules called porphyrins
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition.
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An iron-containing protein in red blood cells that reversibly binds oxygen.
hemophilia
[Gk. haima, blood + philios, friendly] ...
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sickle cell anemia A condition that causes the red blood cells to collapse (sickle) under oxygen stress. The condition becomes manifest when an individual is homozygous for the gene for hemoglobin-S (HbS).
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Masses of splanchnic mesoderm that form the first red blood cells and blood vessels. Found in the gut wall of amphibians and the yolk sac of amniotes.
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This mutation causes the red blood cells to take on a sickle shape, rather than their characteristic donut shape.
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It stores excess red blood cells, destroys old cells, and is capable of acting as a reservoir holding 20-30% of all blood cells. It produces lymphocytes and serves to regulate the volume of blood cells elsewhere in the blood system.
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cytoskeleton -- Integrated system of molecules within eukaryotic cells which provides them with shape, internal spatial organization, motility, and may assist in communication with other cells and the environment. Red blood cells, for instance, ...
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blood islands - also known as angiogenetic clusters; masses of splanchnic mesodermal cells found in the yolk sac of amniotes. The first blood forming tissue of the embryo, responsible for red blood cells and vitelline blood vessels.
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Interestingly, Tyr359, in the N-terminal domain, and Tyr904 in the C-terminus of AE1 are phosphorylated in red blood cells.
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