{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

img026 - a“ investigator has isolated a dipeptide from a...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: a“: investigator has isolated a dipeptide from a liver biopsy: valylhistidine. The technician in the a oratory prepares a stock solution ofSO mL of0.l M dipeptide at pH 6.00. To this solutiog‘AmL of 1.0 M NaOH is added. What is the final pH value? Assume that the pKa values for the dipeptide are identical to those for the corresponding functional groups of the individual amino acids. .J‘ / valine: 2.29 and 9.74 .uU histidine: 1.80, 6.00; and 9.33 / ”A .05 an 'r' ,005 ”‘0‘ WM Q 6.60 9.14 ¢ 330% mol 8% c)9.37 ' OOH X ‘ ) d) 10.11 Emg; ,p _ [mo-fl e)lO.34 Via/Lt?“ '103 2,133 L9 >4} M73” 3. What is the pl value of histidylglutamylarginine? Assume that the individual amino acids have the following pKa values: ‘ histidine: 1.80, . 0,9.33 glutamic acid: m, 4.07, 9.47 \ 4. Which of the following reagents reacts directly with amino groups? Sanger 'J reogem a glutathione d onsul ( \ Sanger's reagent (l-fluoro-2,4-dinitrobenzene) gram}, [\‘5 degf Q d a A, 6 ‘\ c) cyanogen bromide (CNBr) ‘dgjodoacetate Nicyclohexylcarbodiimide (DCCD) e (Qt b0 Xyl groom '13 ive different tripeptides have been isolated from the blood plasma of a horse in UF's veterinary k0.» pital. The tn'peptides are separated with paper electrophoresis. Which of the following peptides migrates the fastest to the anode(i.e., the ositiv 1 -char ed electrode) at H 6. " N ‘7‘ w g #- @glutamyl-methionyl-aspartate Méjat‘w‘fi (UK? " : P05 005” (if d PIPU'rOdfi. ) arginyl-histidyl-glutamate c) valyl-methionyl-lysine (”l9 ChOthre 3‘5 ’ baé‘ed On 01 M96 d) seryl-cysteinyl-leucine JO 0) (ink M3 :1 0» e) isoleucyl-asparaginyl-glutamine “HQ 9 -8 ‘j H I. I i C09“ ”3 1’ T ’I’fl‘W/‘l (dirt e 2 q'f \9 \l Plait n—n—n—~®fifia +' 02% i‘fi’j‘ FO/OH ~ 0 500.5 0 0 9 “ q s 8 9 z ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern