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domain at biology dictionary

Zinc finger

...>>> where CCCC is the DNA -binding domain that contains zinc finger s, and EEEE the ligand-binding domain . The latter is also responsible for dimer ization of most nuclearic receptor s prior to DNA bin...

Vector

...AV) a gene encoding a protein containing two domain s: ... Full article >>> vector Any agent, such as water, wind, or insect, that trans mits a disease organ ism. vegan A pure vegetarian consuming no animal products at all. Full article >>> vector [L. carrier ] I...

Variety

...ased on data, showing the separation of the three domain s , , and as described initially by . Full article >>> Understand the variety of organ isms inhabiting Earth. Analyze the impact of habitat alteration on organ isms. - ... Full article >>> Virus es cause a variet...

Untranslated region

...ription factor s. Bicoid has a DNA -binding homeo domain that binds both DNA and the nanos m RNA . Bicoid binds a specific RNA sequence in the 3' untranslated region of caudal m RNA and blocks ... Full article >>> Instability is mediated by clusters of the AUUUA motif in the 3'...

Tubulin

...beta;- tubulin . Each of these subunits has three domain s. γ- tubulin is important in the nucleation and polar orientation of microtubule. Full article >>> Tubulin : Abundant cytoplasm ic protein (55 kD), found mainly in two forms, a and b. A tubulin hetero dimer (one a, one b)...

Trans

... one end of the receptor outside (extracellular domain ) and one inside (intracellular domain ) the cell . Full article >>> Trans ferring technology to the private sector, a pri...

Tertiary Structure

...le, the membrane distal and membrane proximal domain s of an MHC molecule ). Dominance ... Full article >>> In DNA it refers to the separation of the two component strand s caused by the breaking of the hydrogen bond s. In proteins , it refers to disruptions in the secondary and t...

Symbiosis

... Full article >>> Beginnings of the domain eucarya, cyanobacteria , and oxygen and the acquisition of mitochondria by endo symbiosis . [Carolina Biological Supply Company (800/334-5551 or 336/584-0381, carolina@carolina.com)] ... Full article >>> nitrogen fixation Conv...

Splicing

Splicing occurs in all the kingdom s or domain s of life, however, the extent and types of splicing can be very different between the major division s. Eukaryotes splice many protein -coding messenger RNA s and some non-coding RNA s. Full article >>> RNA splicing a proc...

Species

... including across the boundaries of phylogenetic " domain s". Full article >>> Evolution ary Footprinting : One can infer which portions of a gene are important by comparing the sequence of that gene with its cognates from other species . Full article >>> The molar ex...

Signal Sequence

...y signal sequence s, presence of trans membrane domain s and grand average of hydropathy (GRAVY) scores. Theoretical parameters were evaluated with respect to species and chromosome of origin . Full article >>> Secreted protein A protein that is exported through the cytoplasm ic ...

Sequence homology

...ogy , including a centrally located DNA -binding domain with five C2-H2 zinc finger s and a C-terminal transcription activation domain . Full article >>>...

RNA

... evolution . The exact relationships of the three domain s are still being debated. Enlarge ... Full article >>> Nucleotide : A subunit of DNA or RNA composed of a nitrogenous base , a phosphate molecule , and a pentose sugar molecule . Pentose sugar: A sugar molecule containing fi...

Residue

...nsfer between a histidine residue on the sensor domain and an aspartate residue inthe response regulator domain determines the phosphorylation state of the response regulator. Full article >>> :...

Red blood cells

...;> Interestingly, Tyr359, in the N-terminal domain , and Tyr904 in the C-terminus of AE1 are phosphorylated in red blood cells . Full article >>>...

Proteins

...the protein and often each of those portions or domain s carries out a different function. Full article >>> From genes to proteins . In the cell nucleus , RNA is produced by transcription , in much the same way that DNA replicates itself. RNA , however, substitutes the sugar ribose...

Prokaryote

... by it. Full article >>> The three- domain system is a biological class ification introduced by Carl Woese in 1990 that emphasizes his separation of prokaryote s into two groups, origin ally called Eubacteria and Archaebacteria . Full article >>> Hair-like structure at...

Prokaryotes

... by it. Full article >>> The three- domain system is a biological class ification introduced by Carl Woese in 1990 that emphasizes his separation of prokaryotes into two groups, origin ally called Eubacteria and Archaebacteria . Full article >>> Hair-like structure atta...

Polyadenylation

...ng which can produce an alternative C-terminus domain in proteins . In this case, different sets of polyadenylation sites can be spliced with the other exons . Full article >>> Complexes formed by snRNA and proteins . Involved in RNA processing such as splicing and polyaden...

Polarity

.... An S1 fragment is composed of the head and neck domain s of the myosin II. Full article >>> Changed polarity of the membrane, the action potential , results in propagation of the nerve impulse along the membrane. An action potential is a temporary reversal of the electrical pote...

Plasma membrane

...sma membrane of a cell , with the extracellular domain of the protein having the ability to bind to a ligand and the intracellular domain having an activity (such as a protein kinase ) that can be altered (either increased ... Full a...

Phylogenetic tree

... gene data, showing the separation of the three domain s bacteria , archaea, and eukaryotes as described initially by Carl Woese. Full article >>> The evolution ary process whereby one species evolves into another without any splitting of the phylogenetic tree . See cladogenesis . ...

Phosphorylation

...>>> Phosphorylation of the sensor domain is modulated in response to specific physiological stimulus. Full article >>> MPF - maturation/ mitosis promoting factor - heterodimeric protein that initiates prophase of mitosis and alters the activity of diverse proteins t...

Phage

...i phage lambda ). MHC class I trans membrane domain length variation , frequent gene conversion s and deletion s in the MHC-linked 21-hydroxylase gene (CYP21), gene conversion s within the MHC class II genes in mice and human s, ... Full article >>> In DNA cloning , the pl...

Parasites

.... Mosby ... Full article >>> These domain s reflect whether cells have nuclei or not as well as differences in cell exteriors. There is also a series of intracellular " parasites " that are progressively less alive in terms of being metabolically active: ... Full article >>>...

Parasite

...molecule s. Full article >>> These domain s reflect whether cells have nuclei or not as well as differences in cell exteriors. There is also a series of intracellular " parasite s " that are progressively less alive in terms of being metabolically active: ... Full article >>...

Oocytes

...in vitro: Shh can bind to the large extracellular domain s of Ptc1 when express ed in tissue culture cells or Xenopus oocytes (Marigo et al. 1996a; Stone, 1996; Fuse et al. 1999) ... Full article >>> [L. ovarium - ovary ] The female gonad: where primary oocyte s develop into mat...

Nucleic acids

... family membership and conserved and annotated domain information to BLAST searches. Full article >>> nucleic acids Polymers composed of nucleotide s; e.g., DNA and RNA . nucleoid The area of the prokaryotic cytoplasm where the chromatin is localize d. Full article >>...

N-terminus

...l end (also known as the N-terminus , N-terminal domain or amine -terminus) refers to the extremity of a protein or polypeptide terminated by an amino acid with a free amine group ... Full article >>> (Redirected from N-terminus ) The N-terminal end refers to the extremity of a ...

Morphogenesis

...62;>> Cut transcription factor - homeo domain - cut domain - mediates choice between chordotonal sense organ and external sensory organ fate - also invo...

Monera

...62;> One main character istic of the three- domain method is the separation of Archaea and Bacteria , previously grouped into the single kingdom Bacteria (sometimes Monera ). Full article >>> Monera n - simplest kingdom containing prokaryotic cells (mostly bacteria ), so...

Molecule

...s . The heavy chain consists of 5 main regions or domain s: ... Full article >>> Molecule versus Mixture: Molecule s are compound s with elements in definite, fixed ratios. Those atoms are held together usually by one of the three bonds discussed above. For example: water, glucose , ...

Mitotic spindle

...A taxon omic category, the second broadest after domain . Full article >>> Eucaryote An organ ism with a nuclear membrane and membrane bound organelles (e.g. mitochondria ), and a mitotic spindle . This group of organ isms is more correctly called Eucarya. Full article >>&...

Memory

...in segment was identified as a trans membrane domain if its value was positive. Full article >>>...

Macromolecules

...ntific consensus on the relationship of the three domain s of life (Archea, Bacteria , Eukaryota) or the origin of life . Attempts to shed light on the earliest history of life generally focus on the behavior of macromolecules , ... Full article >>>...

Lumen

...op projecting into the ER lumen . The C-terminal domain of SREBP interacts with the C-terminal domain of SREBP- cleavage -activating protein (SCAP). Full article >>> The transport ves...

Localize

...nal protein are usually localize d in separate domain s. Full article >>> mechanisms of gene amplification to provide gene product s needed in large quantities. These mechanisms include: Elaboration of small "extrachromosomal" units that replicate to high copy number (r DNA ); tandem...

Lipid

...2;>> Chapter 11 The ' lipid raft' micro domain proteins reggie-1 and reggie-2 (flotillins) are scaffolds for protein inter action and signalling Claudia A.O. Stuermer1 and Helmut Plattner Department of Biology , University of Konstanz, 78467 Konstanz, Germany ... Full article >>&#...

Lambda

...;> lambda ). MHC class I trans membrane domain length variation , frequent gene conversion s and deletion s in the MHC-linked 21-hydroxylase gene (CYP21), gene conversion s within the MHC class II genes in mice and human s, ... Full article >>> Expression clone : This is...

Lac repressor

...off: Orientation of lac repressor DNA -binding domain is reversed upon inducer binding. FEBS Lett. 1995. V.375. P.27-30 ... Full article >>>...

Kingdom

...A taxon omic category, the second broadest after domain . Koch's postulates ... Full article >>&#...odern alternatives generally begin with the three- domain system: Archaea ( origin ally Archaebacteria ) -- Bacteria ( origin ally Eubacteria ) -- Eukary...

Homeobox

...t 180 base pair s long ; it encodes a protein domain (the homeo domain ) which can bind DNA . Homeobox genes encode transcription factor s which typically switch on ca...

Histones

...is further compacted by looping to produce looped domain s. Full article >>> These enzymes add an acetyl group to histones , thus releasing the restricted access to DNA imposed by histones . Transcription factor s can then bind to the DNA , allowing gene transcription to occur. A...

Histone

...is further compacted by looping to produce looped domain s. Full article >>> Chromosome organ ized in nucleosome s composed of histone s and other protein factors. Related Chromosome ... Full article >>> the DNA strand may also be silenced through DNA methylati...

Helix-turn-helix

...62;> A 3-D model of a protein with a homeo domain , a " helix-turn-helix " motif that acts as a t...;> A highly conserved family of protein domain sequence s 60 amino acids in length found within a large number of transcription factor s that ...

Hairpin

...shion. Both the N-terminal transcription factor domain and the C-terminal regulatory domain face the cytoplasm . Full article >>> The terminator sequence is usually a pal...

Exon

...rst uses an exon that encodes a trans membrane domain that causes the molecule to be retained at the cell surface. Full article >>> The programs that try to predict genes look for what we call " splicing sites," the sites that are used to splice one exon onto another exon in an ...

Eukaryotes

...al eukaryotes such as Volvox. goosecoid- a homeo domain transcription factor express ed in the dorsal... trees tend to group living things into the three domain s, with the eukaryotes placed beside or within the Archaea and the eubacteria forming a separate...

Eukaryote

... eukaryote s such as Volvox. goosecoid- a homeo domain transcription factor express ed in the dorsal... trees tend to group living things into the three domain s, with the eukaryote s placed beside or within the Archaea and the eubacteria forming a separa...

Eubacteria

...acteria . Full article >>> If each domain represents a monophyletic group, three possibli... trees tend to group living things into the three domain s, with the eukaryotes placed beside or within the Archaea and the eubacteria forming a separate...

Escherichia coli

...-dimensional NMR studies of a substrate -binding domain fragment ( amino acids 387-552) from an Escherichia coli Hsp70, DnaK(387-552), have uncovered a pH-dependent conformation al change, ... Full article >>> Escherichia coli , the usual bacteria in molecular genetics experiments...

Endosymbiosis

..."tree of life" with all groups divided into their domain s. Includes information about lateral gene tran... Full article >>> Beginnings of the domain eucarya, cyanobacteria , and oxygen and the acquisition of mitochondria by endosymbiosis . [C...

Dorsal lip

...ryo s; ... Full article >>> a homeo domain transcription factor express ed in the dorsal lip of the blastopore ; may be a key factor is specifying these cells as the organ izer of the embryo . Full article >>> chorda mesoderm Tissue in the amphibian gastrula tha...

Domain

a domain first identified in proteins implicated in chol...Y Z ... Full article >>> The three- domain system is a biological class ification introduced by Carl Woese in 1990 that emphasizes his separa...

Distal

...le, the membrane distal and membrane proximal domain s of an MHC molecule ). Dominance ... Full article >>>...

Dimer

...#62;> BAR (bin, amphiphysin and Rvs161/167) domain s are a unique class of dimer ization domain s, whose dimer ization interface is edged by a membrane-binding surface. Full article >>&#...

Convergence

...ergence of the SUMO and MAPK pathways on the ETS- domain transcription factor Elk-1 Shen-Hsi Yang and Andrew D. Sharrocks.......... Full article >>> each involve different species in the early stages. In any given region, though, the species in the final, self-sustaining climax forest...

Colon

...al eukaryotes such as Volvox. goosecoid- a homeo domain transcription factor express ed in the dorsal lip of the blastopore ; may be a key factor is specifying these cells as the organ izer of the embryo . Full article >>> : A heterogeneous group of aquatic, unicellular , colon...

Coding region

...cids encoded by the homeobox are called a homeo domain . It mediates DNA binding by these proteins . Full article >>> DOWNSTREAM - Identifies sequence s proceeding farther in the direction of expression ; for example, the coding region is downstream from the initiation codon , ...

Cladogenesis

...e genes ancestral to those shared among the three domain s of life. Full article >>> The evolution ary process whereby one species evolves into another without any splitting of the phylogenetic tree . See cladogenesis . 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 ... Full artic...
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