Protein pages needing a picture

Neurofilaments (NF) are classed as type IV intermediate filaments found in the cytoplasm of neurons. They are protein polymers measuring 10 nm in diameter and many micrometers in length. Together with microtubules (~25 nm) and microfilaments (7 nm), they form the neuronal cytoskeleton. They are believed to function primarily to provide structural support for axons and to regulate axon diameter, which influences nerve conduction velocity. The proteins that form neurofilaments are members of the intermediate filament protein family, which is divided into six types based on their g

Streptolysins are two homogenous exotoxins from Streptococcus pyogenes. Types include streptolysin O (SLO; slo), which is oxygen-labile, and streptolysin S (SLS; sagA), which is oxygen-stable.

Glutelins are a class of prolamin proteins found in the endosperm of certain seeds of the grass family. They constitute a major component of the protein composite collectively referred to as gluten. Glutenin is the most common glutelin, as it is found in wheat and is responsible for some of the refined baking properties in bread wheat. The glutelins of barley and rye have also been identified. Glutelins are the primary protein form of energy storage in the endosperm of rice grains.

InterPro Family

InterPro Family

thumb|Heme in chlorocruorin, the source of its unique green color. Erythrocruorin (from Greek eruthros "red" + Latin cruor "blood"), and the similar chlorocruorin (from Greek khlōros "green" + Latin cruor "blood"), are large oxygen-carrying hemeprotein complexes, which have a molecular mass greater than 3.5 million daltons. Both are sometimes called giant hemoglobin or hexagonal bilayer haemoglobin. They are found in many annelids and arthropods (including some insects).

Complex that transfers electrons from reduced plastoquinone to oxidized plastocyanin and translocates protons from the stroma to the lumen

In molecular biology, caveolins are a family of integral membrane proteins that are the principal components of caveolae membranes and involved in receptor-independent endocytosis. Caveolins may act as scaffolding proteins within caveolar membranes by compartmentalizing and concentrating signaling molecules. They also induce positive (inward) membrane curvature by way of oligomerization, and hairpin insertion. Various classes of signaling molecules, including G-protein subunits, receptor and non-receptor tyrosine kinases, endothelial nitric oxide synthase (eNOS), and small GTPases, bind Cav-1

protein-coding gene in the species Homo sapiens

β-Glucosidase (; systematic name β-D-glucoside glucohydrolase) is an enzyme that catalyses the following reaction: Hydrolysis of terminal, non-reducing β-D-glucosyl residues with release of β-D-glucose

mammalian protein found in Homo sapiens

thumb|300px Claudins are a family of proteins which, along with occludin, are the most important components of the tight junctions (zonulae occludentes). Tight junctions establish the paracellular barrier that controls the flow of molecules in the intercellular space between the cells of an epithelium. They have four transmembrane domains, with the N-terminus and the C-terminus in the cytoplasm.

class of proteins

Iduronidase (, L-iduronidase, α-L-iduronidase, laronidase), sold as Aldurazyme, is an enzyme with the systematic name glycosaminoglycan α-L-iduronohydrolase. It catalyses the hydrolysis of unsulfated α-L-iduronosidic linkages in dermatan sulfate.

Apamin is an 18 amino acid globular peptide neurotoxin found in apitoxin (bee venom). Dry bee venom consists of 2–3% of apamin. Apamin selectively blocks SK channels, a type of Ca2+-activated K+ channel expressed in the central nervous system. Toxicity is caused by only a few amino acids, in particular cysteine1, lysine4, arginine13, arginine14 and histidine18. These amino acids are involved in the binding of apamin to the Ca2+-activated K+ channel. Due to its specificity for SK channels, apamin is used as a drug in biomedical research to study the electrical properties of SK channels and thei

Transaldolase is an enzyme () of the non-oxidative phase of the pentose phosphate pathway. In humans, transaldolase is encoded by the TALDO1 gene.

Sclerostin is a protein that in humans is encoded by the SOST gene. It is a secreted glycoprotein with a C-terminal cysteine knot-like (CTCK) domain and sequence similarity to the DAN (differential screening-selected gene aberrative in neuroblastoma) family of bone morphogenetic protein (BMP) antagonists. Sclerostin is produced primarily by the osteocyte but is also expressed in other tissues, and has anti-anabolic effects on bone formation.

a collagen trimer containing alpha(I) chains

mammalian protein found in Homo sapiens

InterPro Family

class of enzymes

mammalian protein found in Homo sapiens

class of transport proteins

species of bacterium

EF-G (elongation factor G, historically known as translocase) is a prokaryotic elongation factor involved in mRNA translation. As a GTPase, EF-G catalyzes the movement (translocation) of transfer RNA (tRNA) and messenger RNA (mRNA) through the ribosome.

InterPro Family

protein complex that forms a transmembrane channel through which calcium ions may pass in response to changes in membrane potential

A leukocidin is a type of cytotoxin created by some types of bacteria (Staphylococcus). It is a type of pore-forming toxin. Leukocidins fall into the category of bacterial invasin. Invasins are enzymatic secretions that help bacteria invade the host tissue to which they are attached. Although similar to exotoxins, invasins are different in two respects: they work through much less specific mechanisms than exotoxins, and their actions are generally more localized.

thumb | right | Structure of the LTA protein. Based on PyMOL rendering of PDB 1tnr. Lymphotoxin is a member of the tumor necrosis factor (TNF) superfamily of cytokines, whose members are responsible for regulating the growth and function of lymphocytes and are expressed by a wide variety of cells in the body.

class of enzymes

class of enzymes

cell surface receptor that mediates endocytic uptake of modified lipoproteins

class of transport proteins

class of enzymes

series of molecular signals generated as a consequence of activation of the transmembrane protein Smoothened

group of toxins

A lipopeptide is a molecule consisting of a lipid connected to a peptide. They are able to self-assemble into different structures. Many bacteria produce these molecules as a part of their metabolism, especially those of the genus Bacillus, Pseudomonas and Streptomyces. Certain lipopeptides are used as antibiotics. Due to the structural and molecular properties such as the fatty acid chain, it poses the effect of weakening the cell function or destroying the cell. Other lipopeptides are toll-like receptor agonists. Certain lipopeptides can have strong antifungal and hemolytic activities. It ha

class of transport proteins

class of enzymes

heterodimeric cytokine acting as mediator of inflammation

mammalian protein found in Homo sapiens

antiporter membrane protein that removes calcium from cells

class of enzymes

class of proteins / complexes

class of transport proteins

class of enzymes

HindIII (pronounced "Hin D Three") is a type II site-specific deoxyribonuclease restriction enzyme isolated from Haemophilus influenzae that cleaves the DNA palindromic sequence AAGCTT in the presence of the cofactor Mg2+ via hydrolysis. thumb|HindIII restrictions process results in formation of overhanging palindromic sticky ends. The cleavage of this sequence between the AA's results in 5' overhangs on the DNA called sticky ends:

InterPro Family

thumb|Beating of the maxillipeds of the crayfish Pacifastacus leniusculus captured at a frame rate of 1000 Hz

instance of defined set in Homo sapiens with Reactome ID (R-HSA-6806560)

class of enzymes

class of enzymes

thumb|238px|Structures and predicted structures of systemins, HypSys and AtPeps

Angiopoietin is part of a family of vascular growth factors that play a role in embryonic and postnatal angiogenesis. Angiopoietin signaling most directly corresponds with angiogenesis, the process by which new arteries and veins form from preexisting blood vessels. Angiogenesis proceeds through sprouting, endothelial cell migration, proliferation, and vessel destabilization and stabilization. They are responsible for assembling and disassembling the endothelial lining of blood vessels. Angiopoietin cytokines are involved in controlling microvascular permeability, vasodilation, and vasoconstri

class of enzymes

protein family

enzyme

Importin is a type of karyopherin involved in the nuclear transport of moving protein molecules from a cell's cytoplasm to the nucleus. It does so by binding to specific recognition sequences, called nuclear localization sequences (NLS).

protein family