Each actin subunit (globular or G-actin) is a 375-amino-acid polypeptide contains a Mg+2 ion complexed with either ATP or ADP

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#Id: 1167

#Unit 7. System Physiology – Animal

Renal plasma clearance is the volume of plasma from which a substance is completely removed by the kidney in a given amount of time (usually minutes).

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#Id: 9010

#Unit 6. System Physiology – Plant

Only three molecules of CO2 are fixed per second per molecule of rubisco at 250C.

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#Id: 2776

#Unit 13. Methods in Biology

DNase and DMS, other reagents are commonly used to footprint protein–DNA complexes by breaking DNA except where it is protected by bound proteins. For example, organometallic complexes containing copper or iron act by generating hydroxyl radicals that attack and break DNA strands.

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#Id: 5341

#Unit 7. System Physiology – Animal

Agents that increase contractility have a Positive inotropic effect.

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#Id: 6028

#Unit 3. Fundamental Processes

RFC is a clamp loader that catalyzes the loading of PCNA onto DNA. It binds to the 3’ end of the DNA and uses ATP hydrolysis to open the ring of PCNA so that it can encircle the DNA.