|
Centrifugation, Isopycnic
|
D002500 |
[A technique used to separate particles according to their densities in a continuous density gradient. The sample is usually mixed with a solution of known gradient materials and subjected to centrifugation. Each particle sediments to the position at which the gradient density is equal to its own. The range of the density gradient is usually greater than that of the sample particles. It is used in purifying biological materials such as proteins, nucleic acids, organelles, and cell types.
] |
|
Centrifugation, Zonal
|
D002501 |
[Centrifugation using a rotating chamber of large capacity in which to separate cell organelles by density-gradient centrifugation. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
] |
|
Centrioles
|
D002502 |
[Self-replicating, short, fibrous, rod-shaped organelles. Each centriole is a short cylinder containing nine pairs of peripheral microtubules, arranged so as to form the wall of the cylinder.
] |
|
Centromere
|
D002503 |
[The clear constricted portion of the chromosome at which the chromatids are joined and by which the chromosome is attached to the spindle during cell division.
] |
|
Centromere Protein A
|
D000076247 |
[A 17 kDa, centromeric, poly(ADP)-ribose binding protein that is structurally similar to HISTONE H3 and localizes to NUCLEOSOMES within the CENTROMERE; specifically within the region that binds KINETOCHORES, where it replaces histone H3. It plays a critical role in recruiting kinetochore proteins and progression through MITOSIS, chromosome segregation, and CYTOKINESIS. It also binds sera from patients with some scleroderma-like AUTOIMMUNE DISEASES.
] |
|
Centromere Protein B
|
D051936 |
[A DNA-binding protein that interacts with a 17-base pair sequence known as the CENP-B box motif. The protein is localized constitutively to the CENTROMERE and plays an important role in its maintenance.
] |
|
Centrosome
|
D018385 |
[The cell center, consisting of a pair of CENTRIOLES surrounded by a cloud of amorphous material called the pericentriolar region. During interphase, the centrosome nucleates microtubule outgrowth. The centrosome duplicates and, during mitosis, separates to form the two poles of the mitotic spindle (MITOTIC SPINDLE APPARATUS).
] |
|
Cephacetrile
|
D002505 |
[A derivative of 7-aminocephalosporanic acid.
] |
|
Cephaelis
|
D028503 |
[A rarely used term.
, A plant genus of the family RUBIACEAE, order Rubiales, subclass Asteridae. Cephaelis ipecacuanha is the source of IPECAC.
] |
|
Cephalexin
|
D002506 |
[A semisynthetic cephalosporin antibiotic with antimicrobial activity similar to that of CEPHALORIDINE or CEPHALOTHIN, but somewhat less potent. It is effective against both gram-positive and gram-negative organisms.
] |
|
Cephalochordata
|
D064174 |
[A subphylum of chordates intermediate between the invertebrates and the true vertebrates. It includes the LANCELETS. Its members are characterized by a NOTOCHORD which extends into the adult stage head.
] |
|
Cephaloglycin
|
D002507 |
[A cephalorsporin antibiotic.
] |
|
Cephalometry
|
D002508 |
[The measurement of the dimensions of the SKULL.
, The measurement of the dimensions of the HEAD.
] |
|
Cephalopelvic Disproportion
|
D052178 |
[A condition in which the HEAD of the FETUS is larger than the mother's PELVIS through which the fetal head must pass during a vaginal delivery.
] |
|
Cephalopoda
|
D049830 |
[A class in the phylum MOLLUSCA comprised of SQUID; CUTTLEFISH; OCTOPUS; and NAUTILUS. These marine animals are the most highly organized of all the mollusks.
] |
|
Cephaloridine
|
D002509 |
[A cephalosporin antibiotic.
] |
|
Cephalosporin Resistance
|
D018550 |
[Non-susceptibility of an organism to the action of the cephalosporins.
] |
|
Cephalosporinase
|
D002510 |
|
|
Cephalosporins
|
D002511 |
[A group of broad-spectrum antibiotics first isolated from the Mediterranean fungus ACREMONIUM. They contain the beta-lactam moiety thia-azabicyclo-octenecarboxylic acid also called 7-aminocephalosporanic acid.
, A family of organic compounds that are composed of a dihydrothiazine ring and a beta-lactam ring.
] |
|
Cephalotaxus
|
D032483 |
[A plant genus of the family TAXACEAE, order Pinales, class Pinopsida, division TRACHEOPHYTA. Members contain homoharringtonine.
] |
