Home
Flashcards
Preview
Hemeoglobin and Myoglobin
Home
Get App
Take Quiz
Create
Describe the organic portion of the porphyrin ring.
4 pyrrole gropusĀ
4 methyl groups
2 vinyl groups
2 propionates
Describe the 6 coordinated bonds to Fe in the heme.
4 nitrogens of the pyrrole rings
1 His93 (F8)
1 epty, o2, co,H2O
_____ reduces space forcing O2 to bind at an angle.
Distal histidine (E7)
What prevents the Fe in the heme group from oxidizing?
The non-polar environment
What are the three forms of of myoglobin and what are their 5th and 6th coordination positions?
Deoxymyoglobin(+2) 5: Hist F8 6: empty
Oxymyoglobin(+2) 5: Hist F8 6: O2
Ferrimyoglobin(+3) 5:Hist F8 6: H2O
What effect does the E7 Distal Histidine have on carbon monoxide?
It decreases the affinity
Author
mc166589
ID
282575
Card Set
Hemeoglobin and Myoglobin
Description
Test 1
Updated
2014-09-10T01:24:39Z
Show Answers
Home
Flashcards
Preview