For genotype: repP lach lacPt lacO+ lacZt lacY Select the best description of beta-galactosidase activity in the following environmental conditions.
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- It is not an easy matter to assign particular func-tions to specific components of the basal lamina, sincethe overall structure is a complicated composite materialwith both mechanical and signaling properties. Nidogen,for example, cross-links two central components of thebasal lamina by binding to the laminin γ-1 chain and totype IV collagen. Given such a key role, it was surprisingthat mice with a homozygous knockout of the gene fornidogen-1 were entirely healthy, with no abnormal phe-notype. Similarly, mice homozygous for a knockout of thegene for nidogen-2 also appeared completely normal. Bycontrast, mice that were homozygous for a defined muta-tion in the gene for laminin γ-1, which eliminated just thebinding site for nidogen, died at birth with severe defectsin lung and kidney formation. The mutant portion of thelaminin γ-1 chain is thought to have no other functionthan to bind nidogen, and does not affect laminin struc-ture or its ability to assemble into the basal lamina.…In the normal cycle of Ras activity, when Ras is bound to y activity that removes a phosphate to convert GTP back to GDP and this it is inactive. Activation of Ras involves exchanging GDP for The Ras protein has intrinsic Ras. inactivates activates ATP GTP «< Questic A Moving to another question will save this response. ADP GDP GTPase Clo nuclease3 of 16 Which statement about the IP3 DAG pathway is false? O Diacylglycerol can act as a second messenger. Inositol trisphosphate can act as a second messenger. O Protein kinase C can phosphorylate a wide variety of proteins. O Inositol trisphosphate remains bound to the membrane after phospholipase C catalyzes its formation. Inositol trisphosphate can open ion channels in the membraņes of smooth endoplasmic reticulum, releasing calcium into the cytoplasm.
- Which of the following is NOT regulated by glucagon? Glut-4 transporters protein kinase A Phosphorylase Hormone sensitive lipase O Gluconeogenesis The site of post-translational cleavage of biologically active proteins is often marked by: O methylated tyrosines. O pairs of basic amino acids. O disulfide bridges. O iodinated methionines. O heme-iron complexes. The selection of a specific promoter to activate during mRNA synthesis is determined by: O RNA polymerase I. O RNA primase. O a specific transcription factor. O cell cycle kinases. O RNA polymerase II.What activates CREB? OBinding of CAMP O Phosphorylation O Dimerization O ASUKKERI Masau None of the answers are correctTranslate the first 10 amino acids into RNA code Explain where this process occurs in the cell Transcribe this RNA code into DNA Explain where this process would occur in the cell My protein is human insulin which the sequence of amino acids are: malwmrllpl lallalwgpd paaafvnqhl cgshlvealy Ivcgergffy tpktrreaed lqvgqvelgg gpgagslqpl alegslqkrg iveqcctsic slyqlenycn
- PDGF 100 PI3K 740 751 PI3K 50 - GAP O771 O GAP PTP P 1009 O PTP protein P-site 1 12 4 5. 6. 7. PI3K 740, 751+ 1021 GAP 771 +] +] PTP 1009 PLC PLCy PLCT 1021 When activated by ligand binding, the PDGF (platelet-derived growth factor) receptor becomes phosphorylated on 5 tyrosine residues (left figure). These phosphorylated tyrosines serve as binding sites for proteins that contain SH2 domains (SH2 domains bind phosphorylated Y). These proteins include phospholipase C-gamma (PLC-gamma), a phosphotyrosine phosphatase (PTP), a Ras GTPase-Activating Protein (GAP), and a phosphotidylinositol 3-Kinase (PI3K). PDGF stimulates several changes in the target cell, one of which is DNA synthesis. To determine which effectors of the PDGF receptor is/are responsible for stimulating DNA synthesis, you construct several mutant forms of the receptor that retain individual or combinations of the phosphorylation sites. You express these in cells and monitor DNA synthesi The results are shown in the right…In expressing therapeutic proteins (check all that apply): O Bacteria could be used if you want the protein's disulfide bonds formed before secretion from the bacterial cell. The N-terminal signal sequence and the C chain of insulin must be cleaved off in the rough ER before it's active. O Proteolytic protein maturation can be performed by mammalian cells. □ One of the required modifications to preproinsulin, before it's mature, is glycosylation. Both preproinsulin and proinsulin are inactive proteins.explain Mechanism of Myostatin Function & The PI3-K–Akt1 pathway
- ACTIVITY4; ETC Crossword Puzzle Direction Answer the questions or complete the statements below to fill in the puzzle Across Down 3. Complex lis also known as the 1. Heptachior has been hinked to health issue complex 4. In stage of the ETC, the heptachlor is 2. is when the body has elevated levels inhibited of calcium 6. Complex Il is linked directly to the 5. Rotenone is most commonly found in cycle 8. Complex is inhibited in this pesticide, 7. Rotenone is most abundant in the part of the plant 9. There are (number) complexes in the 10. Heptachlor is commonly spread in ETC form 13. There are (number) ATP produced 11. Complex is also known as the per glucose molecule from the electron Succinate Dehydrogenase Complex transport chain 12. Heptachlor is a man-made substance. 14.type of reaction is used to transfer electrons from electron donors to electron acceptors 15. compound receives electrons from NADH 16. (plant) is where the rotenone comes from 17. in a eukaryotic cell, most of the…Describe the major activity and possible localization of the three major subgroups of proteins that remodel or degrade the ECM in physiological or pathological tissue remodeling. Identify a pathological condition in which these proteins play a key role.Which of the following best describes the use of 2-deoxyglucose in allowing for cancer therapy? Elevates p53 levels directly to regulate glycolytic flux Blocks activation of HIF1transcriptional activation Diminishes lactate production by inhibiting lactate dehydrogenase to allow increased levels of pyruvate to force the transport of pyruvate into the matrix and the function of the TCA cycle Diminishes lactate export from the cell to allow increased levels of pyruvate to force the transport of pyruvate into the matrix and the function of the TCA cycle Competes with glucose for hexokinase, allowing inhibition of glycolytic flux, reducing ATP production.