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ProteinQ424757· pop 14· linked from 46 articles

Spongin, a modified type of collagen protein, forms the fibrous skeleton of most organisms among the phylum Porifera, the sponges. It is secreted by sponge cells known as spongocytes.

Protein · UniProt

Short-chain collagen C4

Organism
Ephydatia muelleri (Mueller's freshwater sponge)
Length
366 aa
Molecular mass
35,783 Da
Evidence
2: Evidence at transcript level
CollagenExtracellular matrixHydroxylationRepeatSecreted
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Swiss-Prot (reviewed) · via UniProt

Wikidata facts

Instance of
protein
Show 1 more fact
found in taxon
Ephydatia muelleri
Sources (1)

via Wikidata · CC0

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Encyclopedic overview

6 sections
Contents
  • Research directions
  • Use in the removal of phenolic compounds from wastewater
  • Molecular structure
  • Collagen-like characteristics
  • Keratin-like characteristics
  • References

Spongin, a modified type of collagen protein, forms the fibrous skeleton of most organisms among the phylum Porifera, the sponges. It is secreted by sponge cells known as spongocytes.

Spongin gives a sponge its flexibility. True spongin is found only in members of the class Demospongiae. Its molecular structure remains incompletely characterized, however it shares similarities with both collagen and keratin.

Excerpted from Wikipedia’s “Spongin” article, available under the CC BY-SA 4.0 licence.