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Recent concepts

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5,556 concepts

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ConceptChangeWhenNode typeDomainIdentifier
Regulatory Elements, Transcriptional
Nucleotide sequences of a gene that are involved in the regulation of GENETIC TRANSCRIPTION.
Added Nucleic Acid Related Biochemistry AMW:CHEM:130176
Replication Origin
A unique DNA sequence of a replicon at which DNA REPLICATION is initiated and proceeds bidirectionally or unidirectionally. It co…
Added Nucleic Acid Related Biochemistry AMW:CHEM:130175
RNA 5' Terminal Oligopyrimidine Sequence
A regulatory sequence found in the 5' terminal regions of a variety of RNA species. The sequence starts with a CYTIDINE, which is…
Added Nucleic Acid Related Biochemistry AMW:CHEM:130173
Transcription Initiation Site
The first nucleotide of a transcribed DNA sequence where RNA polymerase (DNA-DIRECTED RNA POLYMERASE) begins synthesizing the RNA…
Added Nucleic Acid Related Biochemistry AMW:CHEM:130177
Vitamin D Response Element
A DNA sequence that is found in the promoter region of vitamin D regulated genes. Vitamin D receptor (RECEPTOR, CALCITRIOL) binds…
Added Nucleic Acid Related Biochemistry AMW:CHEM:130172
DNA Copy Number Variations
Stretches of genomic DNA that exist in different multiples between individuals. Many copy number variations have been associated …
Updated State Physiology AMW:PHYS:050374
DNA Cleavage
A reaction that severs one of the covalent sugar-phosphate linkages between NUCLEOTIDES that compose the sugar phosphate backbone…
Updated Biochemical Process Physiology AMW:PHYS:020053
DNA Repeat Expansion
An increase number of repeats of a genomic, tandemly repeated DNA sequence from one generation to the next.
Updated Biochemical Process Physiology AMW:PHYS:020142
Nucleic Acid Conformation
The spatial arrangement of the atoms of a nucleic acid or polynucleotide that results in its characteristic 3-dimensional shape.
Updated State Physiology AMW:PHYS:020164
Protein Conformation
The characteristic 3-dimensional shape of a protein, including the secondary, supersecondary (motifs), tertiary (domains) and qua…
Updated State Physiology AMW:PHYS:020180
Acetylation
Formation of an acetyl derivative. (Stedman, 25th ed)
Updated Biochemical Process Physiology AMW:PHYS:020008
Immunoreceptor Tyrosine-Based Activation Motif
A conserved AMINO ACID SEQUENCE located in the intracellular domains of a family of transmembrane proteins involved in various IM…
Updated Physiological Process Physiology AMW:PHYS:020190
Immunoreceptor Tyrosine-Based Inhibition Motif
A conserved AMINO ACID SEQUENCE located in the intracellular domains of a family of transmembrane proteins that negatively regula…
Updated Physiological Process Physiology AMW:PHYS:020191
Anaerobic Threshold
The oxygen consumption level above which aerobic energy production is supplemented by anaerobic mechanisms during exercise, resul…
Added Parameter Physiology AMW:PARAM:125011
Arterial Pressure
The blood pressure in the ARTERIES. It is commonly measured with a SPHYGMOMANOMETER on the upper arm which represents the arteria…
Added Parameter Physiology AMW:PARAM:105008
Atrial Pressure
The pressure within the CARDIAC ATRIUM. It can be measured directly by using a pressure catheter (see HEART CATHETERIZATION). It …
Added Parameter Physiology AMW:PARAM:105006
Blood Cell Count
The number of LEUKOCYTES and ERYTHROCYTES per unit volume in a sample of venous BLOOD. A complete blood count (CBC) also includes…
Added Parameter Physiology AMW:PARAM:115004
Blood Pressure
PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.
Added Parameter Physiology AMW:PARAM:105007
Blood Volume
Volume of circulating BLOOD. It is the sum of the PLASMA VOLUME and ERYTHROCYTE VOLUME.
Added Parameter Physiology AMW:PARAM:105002
Bone Density
The amount of mineral per square centimeter of BONE. This is the definition used in clinical practice. Actual bone density would …
Added Parameter Physiology AMW:PARAM:160001
Cardiac Volume
The volume of the HEART, usually relating to the volume of BLOOD contained within it at various periods of the cardiac cycle. The…
Added Parameter Physiology AMW:PARAM:105013
CD4 Lymphocyte Count
The number of CD4-POSITIVE T-LYMPHOCYTES per unit volume of BLOOD. Determination requires the use of a fluorescence-activated flo…
Added Parameter Physiology AMW:PARAM:115009
CD4-CD8 Ratio
Ratio of T-LYMPHOCYTES that express the CD4 ANTIGEN to those that express the CD8 ANTIGEN. This value is commonly assessed in the…
Added Parameter Physiology AMW:PARAM:115010
Cell Count
The number of CELLS of a specific kind, usually measured per unit volume or area of sample.
Added Parameter Physiology AMW:PARAM:115003
Central Venous Pressure
The blood pressure in the central large VEINS of the body. It is distinguished from peripheral venous pressure which occurs in an…
Added Parameter Physiology AMW:PARAM:105010
Cerebral Blood Volume
Volume of circulating blood in a region of the brain. It is a functional measure of the brain perfusion status which relates chan…
Added Parameter Physiology AMW:PARAM:105003
Cerebrospinal Fluid Pressure
Manometric pressure of the CEREBROSPINAL FLUID as measured by lumbar, cerebroventricular, or cisternal puncture. Within the crani…
Added Parameter Physiology AMW:PARAM:160002
Closing Volume
The lung volume at which the dependent lung zones cease to ventilate presumably as a result of airway closure.
Added Parameter Physiology AMW:PARAM:135010
Erythrocyte Count
The number of RED BLOOD CELLS per unit volume in a sample of venous BLOOD.
Added Parameter Physiology AMW:PARAM:115005
Erythrocyte Volume
Volume of circulating ERYTHROCYTES . It is usually measured by RADIOISOTOPE DILUTION TECHNIQUE.
Added Parameter Physiology AMW:PARAM:105004