what is ras
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Ras subfamily Ras is a family of related proteins which is ubiquitously expressed in all cell lineages and organs. All Ras protein family members belong to a class of protein called small GTPase, and are involved in transmitting signals within cells (cellular signal transduction).Ras is the prototypical member of the Ras superfamily of proteins, which are all related in 3D structure and regulate diverse cell behaviours.When Ras is 'switched on' by incoming signals, it subsequently switches on other proteins, which ultimately turn on genes involved in cell growth, differentiation and survival.as is a G protein, or a guanosine-nucleotide-binding protein. Specifically, it is a single-subunit small GTPase, which is related in structure to the G α subunit of heterotrimeric G proteins (large GTPases). G proteins function as binary signaling switches with on and off states.
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NCI Dictionary of Cancer Terms RAS gene family listen (... jeen FA-mih-lee) A family of genes that make proteins involved in cell signaling pathways that control cell growth and cell death.
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- Ras el Hanout, which is Arabic for head of the shop, is a spice mix often used as a rub for meats, especially lamb and goat in North Africa and the Middle East. Every spice shop, every restaurant, every home has its own recipe, and it can contain dozens of ingredients.
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- The Raspberry Pi is a series of credit card –sized single-board computers developed in the United Kingdom by the Raspberry Pi Foundation with the intention of promoting the teaching of basic computer science in schools and developing countries.
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RANGER ASSESSMENT AND SELECTION ranger assessment and selection Ranger Assessment and Selection, known as RASP, is an intense, eight-week course designed to test a Soldier’s physical and mental strength under extreme conditions. Candidates must earn the right to don the tan beret and become a member of the 75th Ranger Regiment.
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RAN/RAS B. Click here for pricing. Quick to administer and easy to score, the RAN/RAS tests assess children’s and adolescents’ ability to perceive a visual symbol and name it accurately and rapidly, effectively aiding in the identification of children who have reading disabilities.n important component of any diagnostic assessment of oral and written language. 1  The tests consist of rapid automatized naming tests (i.e., letters, numbers, objects, colors) and two rapid alternating stimulus tests (i.e., two-set letters and numbers; three-set letters, numbers, and colors).
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What is Rasta? In Rasta, Jah is accepted as part of the Holy Trinity and, as the messiah, is expected to return. The term “Rastafari” comes from the combination of a term of honor and a name. Ras means “Chief” and Tafari was the first name of Haile Selassie I prior to his coronation.
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- ras protein. n. A protein that typically promotes cell division when a growth factor is present on the cell surface. Abnormal ras proteins, caused by genetic mutations, stimulate cell division and proliferation in the absence of a growth factor and facilitate the development of various cancers. 1  Facebook.
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Ras in Cancer and Developmental Diseases Altered Ras signaling may also contribute to the development of other types of pathologies besides cancer and developmental syndromes. For example, H-Ras activation has been associated with nonobese diabetes and diabetic retinopathy, where it is associated with abnormal vascular development.
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- Rasta came into being in Jamaica in the 1930's. They venerate Emperor Haile Selassie I of Ethiopia as the second coming of Jesus. Ras Tafari was the title of Haile Selassie be … fore he became Emperor. Rasta (the adherents do not like isms) combines elements of Judaism and Christianity.
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- Helsinki, Finland (1994 – present) The Rasmus is a rock band formed in 1994 in Helsinki, Finland. Consisting of Lauri Ylönen (lead singer/songwriter), Eero Heinonen (bass), Pauli Rantasalmi (guitar) and Aki Hakala (drums). The band was formed at the end of the band members’ schooling and were initially known as Rasmus.
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Rasp A rasp is coarse form of file[1] used for coarsely shaping wood or other material. Typically a hand tool, it consists of a generally tapered rectangular, round, or half-round sectioned bar of case hardened steel with distinct, individually cut teeth.[1] narrow, pointed tang is common at one end, to which a handle may be fitted.[2]
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Ranger Assessment and Selection Program Ranger Assessment and Selection Program is an 8-week course held at Fort Benning, Georgia. RASP is required for all ranks. As of 2010, RASP replaced both the RIP for enlisted Soldiers and ROP for Officers, both commissioned and noncommissioned and below to be assigned to the U.S. Army's 75th Ranger Regiment. RASP is designed to prepare soldiers, many of whom have just graduated Basic Training, Advanced Individual Training, and Airborne School and are still considered fresh recruits, for assign
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Recurrent Aphthous Stomatitis Recurrent aphthous stomatitis (RAS) is very common. The cause is unknown, but the disorder tends to run in families. RAS usually begins in childhood, and 80% of people with RAS are < 30 years old. People who have RAS get canker sores repeatedly. Some have only one or two canker sores a few times a year.
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- Definition - What does Raspberry Pi mean? Raspberry Pi is a low-cost, basic computer that was originally intended to help spur interest in computing among school-aged children. The Raspberry Pi is contained on a single circuit board and features ports for: 1  HDMI. 2  USB 2.0. 3  Composite video. 4  Analog audio. 5  Power. 6  Internet. 7  SD Card.
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- Renal artery stenosis. Renal artery stenosis (RAS) is a blockage of an artery to the kidneys. It may cause kidney failure and hypertension (high blood pressure). Smokers have a greater risk of developing RAS.
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Renal Artery Stenosis Renal artery stenosis (RAS) is a blockage of an artery to the kidneys. It may cause kidney failure and hypertension (high blood pressure). Smokers have a greater risk of developing RAS. RAS is most common in men between the ages of 50 and 70.hese complications affect the blood circulation of the kidneys, and may cause damage to the tissues of the kidneys, kidney failure, and/or high blood pressure. Vascular conditions affecting the renal arteries and veins include the following: Renal artery stenosis.
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- Ras is a member of the Ras superfamily of the G proteins, and it is a molecular switch which controls the transduction of signals from cell-surface receptors to intracellular targets. It was discovered in the 1980s when it was observed that 15% of all human tumors contain a point mutation in one of the three Ras proteins: H-Ras, K-Ras and N-Ras. Constantly active forms of these proteins can efficiently promote cell proliferation, thus leading to constant cell division and a broad spectrum of human tumors (2).
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What Is a Radiologist Assistant? Radiologist assistants, commonly called RAs, are experienced radiographers who have upgraded their skills by taking a combination of advanced course work and hands-on clinical training. RAs are advanced-practice radiologic technicians, just as nurse practitioners and nurse anesthetists are advanced-practice nurses.
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- 1 Stari Ras, first capital city of medieval Serbian state of Raska. 2  Ras-e Jonubi, a village in Khuzestan Province, Iran. 3  Ras-e Sharqi, a village in Khuzestan Province, Iran. “ Ras” is the Arabic for a “head,” hence a cape, promontory or headland; and a common word in Arabic place names (e.g. Al Ras)
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- A family of genes that may cause cancer when they are mutated (changed). They make proteins that are involved in cell signaling pathways, cell growth, and apoptosis (cell death). Agents that block the actions of a mutated ras gene or its protein may stop the growth of cancer.
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What is the function of the KRAS gene? exists and is an alternate of . The K-ras (perhaps sometimes called the KRAS) gene is an oncogene which activates mutations that will play a key role in diseases such as lung, colorectal, and pancreatic cancer.
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- A Rasmus is a small furry nocturnal creature that's a cross between a koala, sloath and has large eyes like a bush baby. Rasmus or 'The Rasmus' as their known in plural, live on a diet of plants and leaves. These creatures are mostly found in woodland areas.
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- The ras protein belongs to a large super-family of proteins known as low-molecular weight G-proteins. These proteins are called G-proteins because they bind guanine nucleotides (GTP and GDP).
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HRAS gene The HRAS gene provides instructions for making a protein called H-Ras that is involved primarily in regulating cell division. Through a process known as signal transduction, the H-Ras protein relays signals from outside the cell to the cell's nucleus. These signals instruct the cell to grow or divide.
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The renal renin-angiotensin system The renin-angiotensin system (RAS) is a critical regulator of sodium balance, extracellular fluid volume, vascular resistance, and, ultimately, arterial blood pressure.he renin-angiotensin system (RAS) is a critical regulator of sodium balance, extracellular fluid volume, vascular resistance, and, ultimately, arterial blood pressure.