PORPHYRIN

Pronunciation (US):

(GB):

 Dictionary entry overview: What does porphyrin mean? 

• PORPHYRIN (noun)
  The noun PORPHYRIN has 1 sense:

1. any of various pigments distributed widely in living tissues

  Familiarity information: PORPHYRIN used as a noun is very rare.

 Dictionary entry details 

• PORPHYRIN (noun)

Sense 1

Meaning:

Any of various pigments distributed widely in living tissues

Classified under:

Nouns denoting substances

Hypernyms ("porphyrin" is a kind of...):

pigment (dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.))

 Context examples 

This species is nonmotile, catalase and oxidase positive, porphyrin negative, requires both X and V factors to grow in culture, and may be encapsulated or nonencapsulated.

(Haemophilus influenzae, NCI Thesaurus)

This species is oxidase, urease and porphyrin positive, can grow in culture with V factor alone, and requires putrescines for growth in culture.

(Haemophilus parainfluenzae, NCI Thesaurus)

An autosomal dominant inherited disorder of porphyrin metabolism caused by deficiency of the enzyme coproporphyrinogen oxidase.

(Hereditary Coproporphyria, NCI Thesaurus)

This species is urease, catalase and oxidase positive, porphyrin negative and requires both X and V factors to grow in culture.

(Haemophilus haemolyticus, NCI Thesaurus)

This species is oxidase and urease positive, catalase negative, porphyrin positive and can grow in culture with V factor alone.

(Haemophilus parahaemolyticus, NCI Thesaurus)

There is a functional defect in biliary excretion of bilirubin, cholephilic dyes, and porphyrins.

(Dubin-Johnson Syndrome, NLM, Medical Subject Headings)

Proteins that contain a metal-containing cofactor that consists of an iron atom contained in the center of a large heterocyclic organic ring called a porphyrin.

(Heme Protein, NCI Thesaurus)

A prosthetic group that consists of an iron atom contained in the center of a large heterocyclic organic ring called a porphyrin.

(Hematein, NCI Thesaurus/CRCH)

Iron Chelation involves non-covalent coordination bonding between iron and an organic chemical, often as part of an enzyme or protein complex, as in the iron-binding porphyrin group of hemoglobin.

(Iron Chelation, NCI Thesaurus)

This bacteria is nonmotile, beta hemolytic and urease and porphyrin positive.

(Actinobacillus pleuropneumoniae, NCI Thesaurus)