DEFA Protein
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  DEFA Protein



DEFA Protein

   DEFICIENS is a homeotic gene involved in the genetic control of Antirrhinum majus flower development. Its protein is one of the four founder proteins that structurally define the superfamily of MADS DOMAIN PROTEINS.

RELATED TERMS
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Gene
1. A unit of DNA that carries information for the biosynthesis of a specific product in the cell. 2. Ultimate unit by which inheritable characteristics are transmitted to succeeding generations in all living organisms. Genes are contained by, and arranged along the length of, the chromosome. The gene is composed of deoxyribonucleic acid (DNA). Each chromosome of each species has a definite number and arrangement of genes, which govern both the structure and metabolic functions of the cells and thus of the entire organism.

Genetic
Hereditary. Having to do with the genes.

Development
The process of growth and differentiation.

Protein
Any of a group of complex organic compounds which contain carbon, hydrogen, oxygen, nitrogen, and usually sulfur, the characteristic element being nitrogen. Proteins, the principal constituents of the protoplasm of all cells, are of high molecular weight and consist essentially of combinations of a-amino acids in peptide linkages. Twenty different amino acids are commonly found in proteins, and each protein has a unique genetically defined amino acid sequence which determines its specific shape and function. Their roles include enzymatic catalysis, transport and storage, coordinated motion, nerve impulse generation and many others.

DOMAIN
compact segment of an immunoglobulin molecule, made up of about 110 amino acids around an S-S bond, and encoded by a unique segment of DNA, surrounded by nontranslated sequences.



SIMILAR TERMS
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PREVIOUS AND NEXT TERMS
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Defect, Aorticopulmonary Septal
A congenital anomaly in which there is abnormal communication between the ascending aorta and pulmonary artery just above the semilunar valves.

Defect, Aortopulmonary Septal
A congenital anomaly in which there is abnormal communication between the ascending aorta and pulmonary artery just above the semilunar valves.

Defecographies
Radiographic examination of the process of defecation after the instillation of a CONTRAST MEDIA into the rectum.

Defecations
The normal process of elimination of fecal material from the RECTUM.

Defecography
Radiographic examination of the process of defecation after the instillation of a CONTRAST MEDIA into the rectum.

DEFA Protein

Deethylase, Ethoxycoumarin
A drug-metabolizing enzyme found in the hepatic, placental and intestinal microsomes that metabolizes 7-alkoxycoumarin to 7-hydroxycoumarin. The enzyme is cytochrome P-450- dependent.

DEET, 2,5-di-Me-Analog
A compound used as a topical insect repellent that may cause irritation to eyes and mucous membranes, but not to the skin.

Defective Interfering Particle
Viruses which lack a complete genome so that they cannot completely replicate or cannot form a protein coat. Some are host-dependent defectives, meaning they can replicate only in cell systems which provide the particular genetic function which they lack. Others, called SATELLITE VIRUSES, are able to replicate only when their genetic defect is complemented by a helper virus.

Defective Hybrid
Viruses which lack a complete genome so that they cannot completely replicate or cannot form a protein coat. Some are host-dependent defectives, meaning they can replicate only in cell systems which provide the particular genetic function which they lack. Others, called SATELLITE VIRUSES, are able to replicate only when their genetic defect is complemented by a helper virus.

Defective Hybrids
Viruses which lack a complete genome so that they cannot completely replicate or cannot form a protein coat. Some are host-dependent defectives, meaning they can replicate only in cell systems which provide the particular genetic function which they lack. Others, called SATELLITE VIRUSES, are able to replicate only when their genetic defect is complemented by a helper virus.

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