protoporphyrin


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Related to protoporphyrin: Zinc Protoporphyrin

pro·to·por·phy·rin

 (prō′tō-pôr′fə-rĭn)
n.
A metal-free porphyrin, C34H34N4O4, that combines with ferrous iron to form the heme group in hemoglobin and myoglobin, and with ferric iron to form the hemin group in catalase and some cytochromes.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

protoporphyrin

(ˌprəʊtəʊˈpɔːfɪrɪn)
n
(Biochemistry) a type of porphyrin that, when combined with an iron atom, forms haem, the oxygen-bearing prosthetic group of the red blood pigment haemoglobin
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
Protoporphyrin IX accumulation disrupts mitochondrial dynamics and function in ABCG2-deficient hepatocytes.
The last step of heme synthesis is the incorporation of Fe2+ into protoporphyrin IX, catalysed by ferrochelatase.
Y: yes, N: no, F: female, M: male, FEp: free erythrocyte protoporphyrin, TRP: tubular reabsorption of phosphate, GFR: glomerular filtration rate, TMP: maximal renal phosphate reabsorption Table 3.
Cobalt protoporphyrin accelerates TFEB activation and lysosome reformation during LPS-induced septic insults in the rat heart.
When necessary, 1 [micro]M (final concentration) of zinc protoporphyrin (Znpp, Sigma) or 10 [micro]M (final concentration) of SB 203580 (Sigma) was added to the culture at the same time as GSTD addition.
Brown eggs get their color from a pigment called protoporphyrin. Recent research suggests bits of this pigment are found in every layer of calcium in the shell.
Photodynamic diagnostic technique (PDD) is a fluorescence-based optical imaging technology that uses photosensitive protoporphyrin analogues as contrast agents.
Cobalt protoporphyrin (CoPP) induction of HO-1 contributes to the phosphorylation of the insulin receptor, thus improving insulin sensitivity [12, 13].
Protoporphyrin IX (PplX, [[lambda].sub.ex] = 380 nm; [[lambda].sub.em] = 637 nm) is a downstream substrate that is highly fluorescent (Figure 1(b)).
Utilization of hemin, protoporphyrin derivatives as pretreatment of the surface for improving the activity of BOx on cathode electrode has also been reported [36].
On the basis of the symptoms, porphyrin analysis was performed, with the following results: ALA concentration was increased at 79.6 mmol/mol of creatinine and the free erythrocyte protoporphyrin concentration was also increased at 126.3 [micro]g/dL (reference interval 0-65 [micro]g/dL).