Bio

The _______ - subunit of most heterotrimeric G-proteins binds the guanine nucleotides and acts as a _________.

a. beta, ATPase
b. gamma, GTPase
c. alpha, ATPase
d. gamma ATPase
c. alpha, GTPase

I think the right answer is "E" but not sure please help


E is correct. The alpha subunit has the GTPase activity, the beta, gamma subunits are tightly associated and do not dissociate when activated.

  1. 👍 0
  2. 👎 0
  3. 👁 55
asked by Ron

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science

    I did your corrections. I just wanted to know if all the sentences are correct from a scientific point of view. Thank you. 1) DNA contains instructions which decide which proteins a cell will make and consequently determines the

    asked by Henry1 on May 23, 2011
  2. English

    I'd like you to check these sentences grammatically. I also would like you to see if the terminology I used is correct. Help me improve my paragraph, please. 1)DNA contains instructions which decide which proteins a cell will make

    asked by Henry1 on May 23, 2011
  3. Biology

    What is the main subunit of DNA Nucleotides?

    asked by Anonymous on December 12, 2015
  4. bmb

    Under appropriate conditions, hemoglobin dissociates into its four subunits. The isolated alpha subunit binds oxygen, but the O2 saturation curve is hyperbolic rather than sigmoid. In addition the binding of oxygen to the isolated

    asked by jess on November 4, 2008
  5. microbiology

    Rifampin inhibits the â subunit of the E. coli RNA polymerase. A typical rifR mutant contains a mutant gene that produces a â subunit that no longer binds rifampin. Propose one other genetic alteration by which an E. coli might

    asked by AKASHA on October 23, 2011
  6. Chemistry

    ATP synthase, shown below, uses the proton (H ) gradient to drive ATP synthesis. Put the following steps of ATP synthesis in order from proton transport to the synthesis of ATP: a. The y subunit rotates and interacts with the

    asked by lolo on April 17, 2012
  7. genetics

    Which of the following are the purine nucleotides in DNA? A.Adenine and thymine B.Cytosine and guanine C.Adenine and cytosine D.Guanine and adenine E.Thymine and uracil

    asked by Lucy on March 22, 2015
  8. Science

    which of the following is a function of DNA 1)controlling the production of proteins in the cell 2)breaking down proteins in the cell 3)producing energy from food molecules inside the cell 4)controlling substances that enter and

    asked by Freeman on February 11, 2013
  9. Bio

    . which stament is true( more then one can be true) 1) EF-Tu moves the mRNA by one codon 2)EF-G delivers aa-tRNAs to the ribosome 3)Translation initiation occurs by 70S riboosomes binding to mRNAs with fMet-tRNA 4)Translocation

    asked by Jeremiah on February 20, 2018
  10. MATH

    Chemistry of Life Multiple Choice 1. Which of the following form the main components of our body cells? carbohydrates and proteins fat and phosphorous proteins and iron nucleic acids and calcium 2. Organic compounds always

    asked by Help!!!!!!!!!!!!!! Fast its urgent Please!!!!!!!!! on December 7, 2012

More Similar Questions