porphyrin

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NHolmes3L
Posts: 50
Joined: Wed Sep 18, 2019 12:19 am

porphyrin

Postby NHolmes3L » Sun Dec 08, 2019 10:51 am

What do we need to know about porphyrin?

Kendall 3H
Posts: 52
Joined: Wed Sep 18, 2019 12:18 am

Re: porphyrin

Postby Kendall 3H » Sun Dec 08, 2019 10:52 am

I think we just need to know that its the ligand that finds with fe to make a heme complex and that it is tetradenate.

Chris Tai 1B
Posts: 102
Joined: Sat Aug 24, 2019 12:16 am

Re: porphyrin

Postby Chris Tai 1B » Sun Dec 08, 2019 10:54 am

A porphyrin ring is one that completely surrounds an atom (like a transition metal) and often forms coordinate covalent bonds with it. For instance, in the heme complex, the iron metal atom is surrounded by a porphyrin ring, where four different nitrogen atoms form coordinate covalent bonds with it. Porphyrin ligands like this one are tetradentate

zachary_nhem_4I
Posts: 57
Joined: Sat Aug 17, 2019 12:18 am

Re: porphyrin

Postby zachary_nhem_4I » Sun Dec 08, 2019 11:22 pm

Adding to Chris, a heme complex binds with a protein and oxygen to make a myoglobin, and four myoglobin make a hemoglobin.


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