![Biology](/tpl/images/cats/biologiya.png)
Biology, 17.10.2020 19:01, babyboogrocks5695
There are almost 500 naturally occurring variants of hemoglobin. Most are the result of a single amino acid substitution in a globin polypeptide chain. Some variants produce clinical illness, though not all variants have deleterious effects. A brief sample follows.
HbS (sickle-cell Hb): substitutes a Val for a Glu on the surface
Hb Cowtown: eliminates an ion pair involved in T-state stabilization
Hb Memphis: substitutes one uncharged polar residue for another of similar size on the surface
Hb Bibba: substitutes a Pro for a Leu involved in an a helix
Hb Milwaukee: substitutes a Glu for a Val in the oxygen binding pocket
Hb Providence: substitutes an Asn for a Lys that normally projects into the central cavity of the tetramer
Hb Philly: substitutes a Phe for a Tyr, disrupting hydrogen bonding at the α1β1 interface
![answer](/tpl/images/cats/otvet.png)
Answers: 2
Other questions on the subject: Biology
![image](/tpl/images/cats/biologiya.png)
![image](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 23:30, chafinh1811
You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled
Answers: 1
![image](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 10:30, cordovamaria22
Which is a function of vascular tissue? a. to perform photosynthesis b. to transport water and nutrients c. to absorb minerals and sugar d. to interact with soil fungi
Answers: 1
Do you know the correct answer?
There are almost 500 naturally occurring variants of hemoglobin. Most are the result of a single ami...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 18.11.2019 07:31
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/en.png)
English, 18.11.2019 07:31
![Konu](/tpl/images/cats/obshestvoznanie.png)
![Konu](/tpl/images/cats/biologiya.png)
Biology, 18.11.2019 07:31
![Konu](/tpl/images/cats/fizika.png)
Physics, 18.11.2019 07:31
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 18.11.2019 07:31
![Konu](/tpl/images/cats/mat.png)
Mathematics, 18.11.2019 07:31