What are the examples of nucleoprotein?
A few examples of RNPs include the ribosome, the enzyme telomerase, vault ribonucleoproteins, RNase P, hnRNP and small nuclear RNPs (snRNPs), which have been implicated in pre-mRNA splicing (spliceosome) and are among the main components of the nucleolus.
Why are viruses called as nucleoprotein?
Why are viruses called infectious nucleoproteins Nucleoprotein, conjugated proteinconsisting of a protein linked to anucleic acid, either DNA or RNA(ribonucleic acid). The protein combined with DNA is commonly either histone or protamine, the resulting nucleoproteins are found in chromosomes.
What happens when DNA is hydrolyzed?
In general the generic process of hydrolysis encompasses two important reactions, that of deamination and of base loss from the 2′-deoxyribose backbone. Deamination can occur through hydrolysis to three of the four primary bases normally present in DNA (cytosine, adenine, and guanine).
Is DNA a nucleoprotein?
nucleoprotein, conjugated protein consisting of a protein linked to a nucleic acid, either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). The protein combined with DNA is commonly either histone or protamine; the resulting nucleoproteins are found in chromosomes.
Is Haemoglobin a Chromoprotein?
A chromoprotein is a conjugated protein that contains a pigmented prosthetic group. A common example is haemoglobin, which contains a heme cofactor, which is the iron-containing molecule that makes oxygenated blood appear red.
Which is containing nucleoprotein only?
The nucleus of a cell contains predominantly deoxyribonucleic acid (DNA) and the cytoplasm predominantly ribonucleic acid (RNA); both parts of the cell also contain protein. The only nucleoproteins for which some evidence for specificity exists are nucleoprotamines, nucleohistones, and some RNA and DNA viruses.
Is hemagglutinin a lectin?
HA is the lectin that mediates the viral entry in the host cell.
Why is DNA hydrolyzed?
Hydrolysis of the DNA backbone is an important reaction in biology and in the laboratory manipulation of genetic material. While many enzymes catalyze the sequence-selective hydrolysis of DNA, it has been difficult to design nonprotein catalysts for this purpose.
How is DNA hydrolyzed?
This role is naturally carried out by nucleases, which catalyse the cleavage of DNA either by hydrolysis of the phosphate diester bond (with varying degrees of sequence specificity) or by catalysing elimination of phosphate (and destroying one of the nucleotide units).
Is hemoglobin an oligomer?
Some biologically important oligomers are macromolecules like proteins or nucleic acids; for instance, hemoglobin is a protein tetramer. An oligomer of amino acids is called an oligopeptide or just a peptide.
Is chlorophyll a chromoprotein?
The photosynthetic pigments of cyanobacteria include chlorophyll a, β-carotene, zeaxanthin, echinenone, myxoxanthophyll, and other xanthophylls in addition to an array of water soluble chromoproteins, organized in the phycobilisomes.
How many dependent clauses are in complex sentences?
Complex sentences contain at least one dependent clause, also known as a subordinate clause. A dependent clause expresses an incomplete thought and needs back-up from an independent clause to form a proper sentence.
What is a complexcomplex sentence?
Complex sentences require at least three parts: In writing, entire ideas expressed using a noun and verb (a subject and predicate) create independent clauses. Independent clauses can be complete sentences on their own. Here is a wonderful succession of simple sentences (each an independent clause) from Franz Kafka’s Metamorphosis:
What are subordinating conjunctions in a complex sentence?
A complex sentence uses subordinating conjunctions to join an independent clause with a dependent clause. Many subordinating conjunctions serve to signal the dependent clause to be less important than the independent clause. Subordinating clauses can operate as nouns, adjectives, or adverbs to signal the dependent clause’s start.
How do you write a compound complex sentence?
A compound-complex sentence consists of at least two independent clauses and at least one dependent clause. There are many ways to put together a compound-complex sentence. You can tell that it’s a compound-complex sentence by getting rid of the conjunctions and looking at each clause.