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green fluorescent protein

File:PDB_1ema_EBI.jpg · Wikimedia Commons · See Wikimedia Commons

EntityQ272983· pop 41· linked from 482 articles

green fluorescent protein

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Also known as green fluorescent proteins

protein that converts blue and ultraviolet light ranges to green light

OverviewAI-generated

Green fluorescent protein is a protein found in the water jellyfish *Aequorea victoria*. The gene encoding this protein is designated as GFP. Its UniProt accession number is P42212. The protein is classified as a photoprotein and exhibits luminescence. It contains a chromophore and possesses a defined three-dimensional structure.

The existence of green fluorescent protein is supported by evidence at the protein level. The protein has been subjected to direct protein sequencing. These attributes are associated with the subject in scientific databases, which contain 74,458 PubMed entries related to the query.

Synthesized by Vinony from 9 facts across 2 sources: PubMed, UniProt. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Key facts

Symbol
GFP
Pfam
PF01353
Pfam clan
CL0069
Interpro
IPR011584
Cath
1ema
Scop2
1ema / SCOPe / SUPFAM
Pdb
IPR011584 PF01353 ( ECOD ; PDBsum )
Alphafold
IPR011584 PF01353

via Wikipedia infobox

Protein · UniProt

Green fluorescent protein

Gene
GFP
Organism
Aequorea victoria (Water jellyfish)
Length
238 aa
Molecular mass
26,886 Da
Evidence
1: Evidence at protein level

Energy-transfer acceptor. Its role is to transduce the blue chemiluminescence of the protein aequorin into green fluorescent light by energy transfer. Fluoresces in vivo upon receiving energy from the Ca(2+)-activated photoprotein aequorin

3D-structureChromophoreDirect protein sequencingLuminescencePhotoprotein
View on UniProt →

Swiss-Prot (reviewed) · via UniProt

Research

74,458 papers

via PubMed

Wikidata facts

Instance of
protein
Show 3 more facts
has characteristic
fluorescence
Commons category
Green fluorescent proteins
Sources (3)

via Wikidata · CC0

~31 min read

Encyclopedic overview

The green fluorescent protein (GFP) is a protein that exhibits green fluorescence when exposed to light in the blue to ultraviolet range. The label GFP traditionally refers to the protein first isolated from the jellyfish Aequorea victoria and is sometimes called avGFP. However, GFPs have been found in other organisms including corals, sea anemones, zoanithids, copepods and lancelets.

The GFP from A. victoria has a major excitation peak at a wavelength of 395 nm and a minor one at 475 nm. Its emission peak is at 509 nm, which is in the lower green portion of the visible spectrum. The fluorescence quantum yield (QY) of GFP is 0.79. The GFP from the sea pansy (Renilla reniformis) has a single major excitation peak at 498 nm. GFP makes for an excellent tool in many forms of biology due to its ability to form an internal chromophore without requiring any accessory cofactors, gene products, or enzymes / substrates other than molecular oxygen.

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

Gallery (12)