Interested to Buy Any Domain ? << Click Here >> for more details...
Give the comparisons of Rec-type (proteine) and Rec BCD
Complex. What is the role of each?
- 1 Answers
- 6046 Views
- National University of Rwanda, I also Faced
- E-Mail Answers
Answer Posted / ntegerejimana theogene
RecBCD (EC 3.1.11.5, Exonuclease V, Escherichia coli
exonuclease V, E. coli exonuclease V, gene recBC endoenzyme,
RecBC deoxyribonuclease, gene recBC DNase, gene recBCD
enzymes) is an enzyme of the E. coli bacterium that
initiates recombinational repair from potentially lethal
double strand breaks in DNA which may result from ionizing
radiation, replication errors, endonucleases, oxidative
damage, and a host of other factors.[2][3] The RecBCD enzyme
is both a helicase that unwinds, or separates the strands of
DNA, and a nuclease that makes single-stranded nicks in DNA.[1]
Both the RecD and RecB subunits are helicases, i.e.,
energy-dependent molecular motors that unwind DNA (or RNA in
the case of other proteins). The RecB subunit in addition
has a nuclease function.[5] Finally, RecBCD enzyme (perhaps
the RecC subunit) recognizes a specific sequence in DNA,
5'-GCTGGTGG-3', known as Chi (sometimes designated with the
Greek letter χ).
RecBCD is unusual amongst helicases because it has two
helicases that travel with different rates[6] and because it
can recognize and be altered by the Chi DNA sequence.[7][8]
RecBCD avidly binds an end of linear double-stranded (ds)
DNA. The RecD helicase travels on the strand with a 5' end
at which the enzyme initiates unwinding, and RecB on the
strand with a 3' end. RecB is slower than RecD, so that a
single-stranded (ss) DNA loop accumulates ahead of RecB
(Figure 2). This produces DNA structures with two ss tails
(a shorter 3’ ended tail and a longer 5’ ended tail) and one
ss loop (on the 3' ended strand) observed by electron
microscopy.[9] The ss tails can anneal to produce a second
ss loop complementary to the first one; such twin-loop
structures were initially referred to as “rabbit ears.”
Notes: If you are not satisfied , contact me. these are my
cell phones: +250784944242 or (+250)728944242. or write for
me on my this E-mail: ntegerejimanat@gmail.com
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
what are some of the concerns about biotechnology regarding human health and biodiversity?
I completed Masters in Biotechnology in 2003.I have around 5 years experience in Microbiology.But iam interesterd in doing Biotechnology work.Please help how to get job in biotech field?
hi all i am going for a technician position in a UK university can any one send me general questions and there answers to me.. i need possible general questions and answers.. i prepared well on subject basis...
hey i am doin bsc biotech and i want to do research on stem cells.....plz tell me how to go about??????
What do you think could be the points of conflict in terms of bio ethics?
what type of questions are asked in interview for biotechnology student?
I am doing my m.sc biotechnology.but i don't know about the interview questions of various company and how i have to face.can you please anyone send that placement papers?thank you
in the lcmv what type of effect onm the mhc class i molecule
Explain about histamine?
Can I get a working model on petro plants ?
What is the difference between defined, characterized and standard serum?
What are the possible dangers that bio technology and bio medicine faces on the advanced scientific methods of food products?
could u please say me the job opportunities for M.Sc biotech students in India
Explain about cytokines?
How would you value a biotech company as opposed to a consumer products company?
