
Heme - Wikipedia
The most common type is heme B; other important types include heme A and heme C. Isolated hemes are commonly designated by capital letters while hemes bound to proteins are designated by lower …
What Is a Heme Molecule and What Is Its Function?
Aug 2, 2025 · A heme molecule is a fundamental organic, ring-shaped structure found throughout biological systems. Its unique architecture allows it to host an iron atom, making it a versatile …
Heme: The Lord of the Iron Ring - PMC
Heme is an iron-protoporphyrin complex with an essential physiologic function for all cells, especially for those in which heme is a key prosthetic group of proteins such as hemoglobin, myoglobin, and …
Heme | chemical compound | Britannica
Heme is composed of a ringlike organic compound known as a porphyrin, to which an iron atom is attached. It is the iron atom that reversibly binds oxygen as the blood travels between the lungs and …
HEME Definition & Meaning - Merriam-Webster
The meaning of HEME is the deep red iron-containing prosthetic group C34H32N4O4Fe of hemoglobin and myoglobin.
Heme - an overview | ScienceDirect Topics
Heme is an iron-containing molecule within hemoglobin that serves as the site for oxygen binding. Owing to its potent reactivity, homeostasis of heme is tightly regulated and controlled via its …
Biochemistry, Heme Synthesis - StatPearls - NCBI Bookshelf
Heme is a porphyrin ring complexed with ferrous iron and protoporphyrin IX. Heme is an essential prosthetic group in proteins that is necessary as a subcellular compartment to perform diverse …
What Is Heme and Its Function in the Body? - Biology Insights
Jun 22, 2025 · Heme is a specialized molecule built around a central iron atom, forming a complex organic ring structure. It is a component of several important proteins involved in functions ranging …
Heme - Wikiwand
Heme (American English), or haem (Commonwealth English, both pronounced / hi:m / HEEM), is a ring-shaped iron-containing molecule that commonly serves as a ligand of various proteins, more notably …
Definition of heme - NCI Dictionary of Cancer Terms
The heme part of hemoglobin is the substance inside red blood cells that binds to oxygen in the lungs and carries it to the tissues.