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Briefly, proteins (polypeptides) look like amino acids chained together; look at the link below for a detailed description of proteins' appearance.
Proteins have a couple different levels of structure including the primary, secondary, tertiary, and quaternary. At the primary structure, proteins are just linked amino acids through peptide bonds. Amino acids have the same general structure with a variable R-group.
At the secondary structure, the chemical properties of the amino acids form hydrogen bonds with each other and give shape to the protein. The two general shapes of proteins at the secondary structure: alpha helices and beta-pleated sheets. An alpha helix looks like a spiral while a beta-pleated sheet looks like stairs. See the related links below for images.
The tertiary structure is characterized by further interactions by the R-groups on the amino acids. Various bonds can distort the alpha helix or beta-pleated sheet such as ionic bonds, disulfide bridges, covalent bonds, and hydrophobic interactions.
The complete protein is seen at the quaternary structure, which is the arrangements of polypeptides into a single macromolecule.
What else can I help you with?
What is the smallest functional and structural unit of protein?
The smallest structural unit of a protein is the amino acid. The smallest functional unit of a protein is a little ambiguous, because some might consider the amino acid to be functional (after all, some can function as neurotransmitters). Or, some might consider the peptide (di, tri, etc) to be a functional unit. One could argue what exactly is the smallest functional unit of a protein.
What determine the shape and function of a protein?
Conformation is what determines a protein's unique set of functional and otherwise shapes.
What organelle determines the structural and functional characteristics of the cell by controlling RNA and protein synthesis?
Nucleus
The association of four subunit peptides in a fully functional molecule of hemoglobin is a good example of?
quaternary structure in protein. Hemoglobin is composed of four subunits—two alpha and two beta chains—that come together to form a functional molecule capable of binding and transporting oxygen in the blood. The interactions between these subunits demonstrate how multiple protein subunits can assemble to create a complex, functional protein.
What is A region of DNA that contains instructions for the amino acid sequence of a particular protein called?
A section of DNA that codes for a protein (or other functional product) is known as a gene.
Is collagen a functional protein?
nothing
What is the smallest functional and structural unit of protein?
The smallest structural unit of a protein is the amino acid. The smallest functional unit of a protein is a little ambiguous, because some might consider the amino acid to be functional (after all, some can function as neurotransmitters). Or, some might consider the peptide (di, tri, etc) to be a functional unit. One could argue what exactly is the smallest functional unit of a protein.
What determine the shape and function of a protein?
Conformation is what determines a protein's unique set of functional and otherwise shapes.
What are the key differences between a protein motif and a protein domain?
A protein motif is a small, recurring pattern of amino acids within a protein that has a specific function, while a protein domain is a larger, independently folding unit of a protein that can function on its own. Motifs are like building blocks, while domains are like functional units within a protein.
What do look like nuclear membrane do?
regulates the exchange of materials like protein
Know the correct order of the steps of protein symtem?
The correct order of protein synthesis is transcription (DNA is copied into mRNA), translation (mRNA is decoded to build a protein), and post-translational modification (protein may undergo changes like folding or addition of functional groups).
Which is a functional of a protein marcromolecule?
Makes up the code for living things
How is protein synthesis related to gene expression?
Protein synthesis is the process where proteins are produced based on the information encoded in genes. Gene expression involves the process where the information in a gene is used to produce a functional product, such as a protein. Protein synthesis is a key component of gene expression, as it is the step where the genetic information in the gene is translated into a functional protein.
What does the the centrioles look like?
It's a circle with fluid in it that takes protein in and out.
What does the word gene?
A gene is a functional unit on DNA. A gene codes for a protein. Most of the DNA in a genome does not code for protein. These non-coding sequences are thought to provide a sense of stability and integrity to the genome. If a DNA sequence is capable of coding for a functional protein, then it is a gene
What happens to the growing of polypeptide?
It will either continue growing, or develop into a functional protein.
What are the functional groups of humira?
The main functional group in Humira (adalimumab) is a monoclonal antibody protein. Antibodies like adalimumab have regions that specifically bind to target proteins, such as tumor necrosis factor-alpha (TNF-alpha), helping to reduce inflammation in conditions like rheumatoid arthritis.
