2x21

From Proteopedia

Structure of Peridinin-Chlorophyll-Protein reconstituted with BChl-a

Structural highlights

2x21 is a 1 chain structure with sequence from Amphidinium carterae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.75Å
Ligands:	, , , , , , ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

PCP1_AMPCA Water-soluble antenna for capture of solar energy in the blue-green range. Peridinin is an asymmetric carotenoid.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The peridinin-chlorophyll a-protein (PCP) from dinoflagellates is a soluble light harvesting antenna which gathers incoming photons mainly by the carotenoid peridinin. In PCPs reconstituted with different chlorophylls, the peridinin to chlorophyll energy transfer rates are well predicted by a Forster-like theory, but only if the pigment arrangements are identical in all PCPs. We have determined the X-ray structures of PCPs reconstituted with Chlorophyll-b (Chl-b), Chlorophyll-d (Chl-d) and Bacteriochlorophyll-a (BChl-a) to resolutions<or=2A. In all three cases the pigment arrangements are essentially the same as in native PCP. Hydrogen bonding is not responsible for preferential incorporation of "non-native" chlorophylls over Chl-a.

X-ray structures of the peridinin-chlorophyll-protein reconstituted with different chlorophylls.,Schulte T, Hiller RG, Hofmann E FEBS Lett. 2010 Mar 5;584(5):973-8. Epub 2010 Jan 25. PMID:20102711^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Schulte T, Hiller RG, Hofmann E. X-ray structures of the peridinin-chlorophyll-protein reconstituted with different chlorophylls. FEBS Lett. 2010 Mar 5;584(5):973-8. Epub 2010 Jan 25. PMID:20102711 doi:10.1016/j.febslet.2010.01.041