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CANCER BIOLOGY

PROTEIN SORTING

QuestionAnswer
FOR PROTEINS TO BECOME ACTIVE... THEY FOLD INTO A SPECIFIC 3-D STRUCTURE AFTER TRANSLATION -SOME DON'T FOLD INTO A 3-D STRUCTURE
CHAPERONE PROTEIN (CHAPERONINS) FOLD SOME PROTEINS
ADDITIONAL CHAPERONE ADDT'L FUNCTIONS... -PREVENT FORMATION OF DISEASE CAUSING PROTEIN AGGREGATES -RE-FOLDINH DENATURED PROTEINS -ASSEMBLY OF LARGE PROTEIN STRUCTURES -TRANSPORT ACROSS MEMBRANES
MEDICAL CONSEQUENCES OF IMPROPER FOLDING... ALZHEIMER'S VCJD, ALS CHRONIC TRAUMATIC ENCEPHALOPATHY (CTE) -SICKLE CELL ANEMIA
POST-TRANSLATIONAL PROCESSING PROTEINS REQUIRE THIS TO BECOME BIOLOGICALLY ACTIVE -ALLOWS ONE GENE TO CODE FOR MORE THAN ONE POLYPEPTIDE (PPGS) -PROTEOLYSIS -PHOSPHORYLATION -GLYCOSYLATION -SULFATION
LIPID ANCHORS HOW SOME PROTEINS ATTACH TO THE CELL MEMBRANE
SIGNAL SEQUENCE GUIDE PROTEINS TRANSLATED IN THE CYTOSOL TO A SPECIFIC MOLECULE (MITOCHONDRIA, NUCLEUS, PEROXISOME)
SIGNAL RECOGNITION PARTICLE (SRP) RECOGNIZES SIGNAL SEQUENCE -DELIVERS THE PROTEIN TO THE ROUGH ER WHILE IT IS BEING TRANSLATED
CYTOSOL-SPECIFIC PROTEINS -ARE TRANSLATED IN THE CYTOSOL -mRNAS CAN BE TRANSLATED IN SPECIFIC CYTOSOLIC AREAS WHERE THE PROTEIN THEY ENCODE IS NEEDED
SORTING-DISORDERS -ARE SURE TO ABNORMAL PROTEIN DELIVERY CA-PEK CANCER, ALZHEIMER'S, PARKINSON, ENDOCRINE, KIDNEY
Created by: dgira002
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