Lysosomes are membrane-enclosed organelles filled with soluble hydrolytic enzymes that digest macromolecules.

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#Id: 8093

#Section 2: General Biology

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#Id: 8623

#Section 3: Genetics, Cellular and Molecular Biology

SCF and APC/C are multisubunit ubiquitin-protein ligases that belong to the RING finger family of ubiquitin-protein ligases.

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#Id: 8619

#Section 3: Genetics, Cellular and Molecular Biology

INK4s

bind to CDK4 and CDK6 monomers, blocking their interaction with cyclin D

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#Id: 8038

#Section 2: General Biology

His ionisation series

1------pK1-----pKr--------pKr------14

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#Id: 8643

#Section 3: Genetics, Cellular and Molecular Biology

When E2Fs are bound to Rb, not only are they transcriptionally inactive, but they also function to repress transcription by recruiting chromatin-modifying enzymes that promote deacetylation and methylation of specific histone lysines.