Chemotaxis Sample Clauses

Chemotaxis. Bacteria can have bi-directional flagellar motors which permit changes in the direction of flagellar rotation. Tumbling results from clockwise (CW) flagellar rotation, and running is caused by counter-clockwise (CCW) rotation (124). Bacteria will alter the direction of locomotion in response to the presence or absence of attractants and repellents in the environment, called chemotaxis. Examples of attractants are primarily nutrients, including amino acids, sugars, and dipeptides, though the interspecies quorum sensing signal AI-2 and pyrimidines also serve as attractants for E. coli (150, 151). Some examples of repellents include fatty acids, aliphatic alcohols, aromatic compounds, inorganic ions, and mercaptans (152). Chemotaxis affects the migration of swimming cells which move forward (run) and change direction (tumble) in response to gradients of attractants or repellents. Chemotactic behavior causes seemingly chaotic swimming patterns that result from rapid succession between running and tumbling. However, motility is rarely random. Bacteria have evolved intricate and incredibly sensitive chemosensory systems which promote their survival in various environments (110, 153, 154). The chemotactic system that affects swimming motility in Gram-negative enteric bacteria is an atypical two component system that affects the phosphorylation state of the response regulator (RR) CheY. This system has been best-studied in E. coli and S. enterica (154). The chemosensory proteins that are activated by attractant or repellent molecules are stable, dimeric, transmembrane proteins called methyl-accepting chemotaxis proteins (MCPs). The periplasmic domains of different MCPs have little homology as they “sense” or bind different molecules. Within the cytoplasmic domain of MCPs is a highly conserved signaling domain where the adaptor protein CheW interacts with the cytoplasmic histidine kinase (HK) CheA (155). When the MCP binds a ligand, the signal is transmitted to CheA which, upon activation, phosphorylates the XX XxxX (156). Phosphorylated CheY (CheY~P) binds to the switch complex within the flagellar motor to promote CW rotation of the flagellum and tumbling occurs. CheY~P can be dephosphorylated by CheZ to terminate the signal (155, 157). The CW and CCW rotations of flagella exist in equilibrium with CCW rotation being favored unless CheY~P formation is initiated (154). Another method to reset signal transduction is through altering the methylation state of the MCP...
Sample 1
AutoNDA by SimpleDocs

Related to Chemotaxis

  • Rhytidectomy Scar revision, regardless of symptoms. • Sclerotherapy for spider veins. • Skin tag removal. • Subcutaneous injection of filling material. • Suction assisted Lipectomy. • Tattooing or tattoo removal except tattooing of the nipple/areola related to a mastectomy. • Treatment of vitiligo. • Standby services of an assistant surgeon or anesthesiologist. • Orthodontic services related to orthognathic surgery. • Cosmetic procedures when performed primarily: o to refine or reshape body structures or dental structures that are not functionally impaired; o to improve appearance or self-esteem; or o for other psychological, psychiatric or emotional reasons. • Drugs, biological products, hospital charges, pathology, radiology fees and charges for surgeons, assistant surgeons, attending physicians and any other incidental services, which are related to cosmetic surgery.

  • Ergonomics The supervisor/manager will provide training and equipment for staff to safely perform job functions and avoid injury. Employees should contact their supervisor if job procedures, equipment or workstations lead to risk of injury or work-related musculoskeletal disorders. Further ergonomic guidelines shall be referenced on the Environmental Health and Safety website xxx.xxx.xxxxxxxxxx.xxx.

  • Influenza Vaccination The parties agree that influenza vaccinations may be beneficial for patients and employees. Upon a recommendation pertaining to a facility or a specifically designated area(s) thereof from the Medical Officer of Health or in compliance with applicable provincial legislation, the following rules will apply:

  • MEDICALLY FRAGILE STUDENTS 1. If a teacher will be providing instructional or other services to a medically fragile student, the teacher or another adult who will be present when the instruction or other services are being provided will be advised of the steps to be taken in the event an emergency arises relating to the student's medical condition.

  • Supplier Diversity Seller shall comply with Xxxxx’s Supplier Diversity Program in accordance with Appendix V.

  • Nepotism No employee shall be awarded a position where he/she is to be directly supervised by a member of his/her immediate family. “

  • Influenza Vaccine Upon recommendation of the Medical Officer of Health, all employees shall be required, on an annual basis to be vaccinated and or to take antiviral medication for influenza. If the costs of such medication are not covered by some other sources, the Employer will pay the cost for such medication. If the employee fails to take the required medication, she may be placed on an unpaid leave of absence during any influenza outbreak in the home until such time as the employee has been cleared by the public health or the Employer to return to the work environment. The only exception to this would be employees for whom taking the medication will result in the employee being physically ill to the extent that she cannot attend work. Upon written direction from the employee’s physician of such medical condition in consultation with the Employer’s physician, (if requested), the employee will be permitted to access their sick bank, if any, during any outbreak period. If there is a dispute between the physicians, the employee will be placed on unpaid leave. If the employee gets sick as a reaction to the drug and applies for WSIB the Employer will not oppose the application. If an employee is pregnant and her physician believes the pregnancy could be in jeopardy as a result of the influenza inoculation and/or the antiviral medication she shall be eligible for sick leave in circumstances where she is not allowed to attend at work as a result of an outbreak. This clause shall be interpreted in a manner consistent with the Ontario Human Rights Code.

  • Prosthodontics We Cover prosthodontic services as follows: • Removable complete or partial dentures, for Members 15 years of age and above, including six (6) months follow-up care; • Additional services including insertion of identification slips, repairs, relines and rebases and treatment of cleft palate; and • Interim prosthesis for Members five (5) to 15 years of age. We do not Cover implants or implant related services. Fixed bridges are not Covered unless they are required: • For replacement of a single upper anterior (central/lateral incisor or cuspid) in a patient with an otherwise full complement of natural, functional and/or restored teeth; • For cleft palate stabilization; or • Due to the presence of any neurologic or physiologic condition that would preclude the placement of a removable prosthesis, as demonstrated by medical documentation.

  • SMT XXXXXXXXX XXX, (PAN: XXXXX0000X), wife of Xxx Xxxxxx Xxx, by Nationality Indian, by faith Hindu, by occupation Housewife, residing at Village- Akrampur, PIN-743263, P.O. Akrampur, P.S. Habra, District North 24 Parganas, State West Bengal and (6) SRI XXXXXX XXX, (PAN-XXXXX0000X), son of Xxx Xxxxx Xxxxxx Dey, by Nationality Indian, by faith Hindu, by occupation Service, residing at Village- Akrampur, PIN – 743263, P.O. Akrampur, P.S. Habra, District North 24 Parganas, State West Bengal, hereinafter called and referred to as the VENDORS, all being represented by their Constituted Attorney, XXX XXXXX XXXXXX, (PAN: XXXXX0000X), son of Xxx Xxxxx Xxxxxx, by nationality Indian, by faith Hindu, by occupation Business, residing at BE-111, Sector-I, Salt Lake, Kolkata-700064, Post Office AE Market (Salt Lake City), Police Station Bidhannagar (North), District North 24 Parganas, and being one of the Directors of MAGNOLIA INFRASTRUCTURE DEVELOPMENT LIMITED, (CIN: U70200WB2010PLC152199), (PAN-XXXXX0000X), a Company incorporated under the provisions of the Companies Act, 1956 and having its registered office at 00, Xx. Xxxxxx Xxxxxxx Banerjee Road, Kolkata-700010, Post Office Beliaghata, Police Station: Beliaghata, District South 24 Parganas vide (1) Development Power of Attorney after registration of Development Agreement dated 12th September 2015 registered in the Office of the Additional District Sub-Registrar, Kadambagachi, North 24 Parganas and recorded in Book-I, Volume No. 1519-2015, at Pages 18496 to 18541, being No. 151901639 for the year 2015 and (2) Development Power of Attorney after registration of Development Agreement dated 19th November 2018 registered in the Office of the Additional District Sub-Registrar, Kadambagachi, North 24 Parganas and recorded in Book-I, Volume No. 1519-2015, at Pages 80220 to 80243, being No. 151903193 for the year 2018 (which expression shall unless excluded by or repugnant to the subject or context be deemed to mean and include their respective successors – interest and/or assigns) of the ONE PART. AND MAGNOLIA INFRASTRUCTURE DEVELOPMENT LIMITED, (CIN: U70200WB2010PLC152199), (PAN-XXXXX0000X), a Company incorporated under the provisions of the Companies Act, 1956 and having its registered office at 00, Xx. Xxxxxx Xxxxxxx Banerjee Road, Kolkata -700010, Post Office Beliaghata, Police Station: Beliaghata, District South 24 Parganas, being represented by its Director, XXX XXXXX XXXXXX, (PAN: XXXXX0000X), (AADHAAR NO: 000000000000), son of Xxx Xxxxx Xxxxxx, by nationality Indian, by faith Hindu, by occupation Business, residing at XX-000, Xxxxxx-X, Xxxx Xxxx, Xxxxxxx- 000000, Post Office AE Market (Salt Lake City), Police Station Bidhannagar (North), District North 24 Parganas, hereinafter called and referred to as the “DEVELOPER” (which expression shall unless repugnant to the context or meaning thereof shall include its successors-in-interest and/or permitted assigns of the SECOND PART. AND

  • Wellness A. To support the statewide goal for a healthy and productive workforce, employees are encouraged to participate in a Well-Being Assessment survey. Employees will be granted work time and may use a state computer to complete the survey.

Time is Money Join Law Insider Premium to draft better contracts faster.