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1a54

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Revision as of 22:46, 25 December 2014

PHOSPHATE-BINDING PROTEIN MUTANT A197C LABELLED WITH A COUMARIN FLUOROPHORE AND BOUND TO DIHYDROGENPHOSPHATE ION

Structural highlights

1a54 is a 1 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Gene:	PHO-S (Escherichia coli)
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[PSTS_ECOLI] Part of the ABC transporter complex PstSACB involved in phosphate import.

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

Crystal structures are presented for the A197C mutant of Escherichia coli phosphate binding protein (PBP) and the same mutant labeled at Cys197 with N-[2-(1-maleimidyl)ethyl]-7-(diethylamino)coumarin-3-carboxamide (MDCC). Both proteins are complexed with inorganic phosphate. The latter molecule, MDCC-PBP, exhibits a large increase in fluorescence on binding inorganic phosphate. The resulting high-fluorescence state of the coumarin and the ability of this coumarin to monitor the conformational changes associated with inorganic phosphate binding are interpreted in terms of the specific interactions of MDCC with the protein. The structure helps to explain why this particular label gives a high-fluorescence state on binding inorganic phosphate, while several other related labels do not, and hence aids our general understanding of environmentally sensitive fluorescence probes on proteins.

Crystal structure of phosphate binding protein labeled with a coumarin fluorophore, a probe for inorganic phosphate.,Hirshberg M, Henrick K, Haire LL, Vasisht N, Brune M, Corrie JE, Webb MR Biochemistry. 1998 Jul 21;37(29):10381-5. PMID:9671506^[1]

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

References

↑ Hirshberg M, Henrick K, Haire LL, Vasisht N, Brune M, Corrie JE, Webb MR. Crystal structure of phosphate binding protein labeled with a coumarin fluorophore, a probe for inorganic phosphate. Biochemistry. 1998 Jul 21;37(29):10381-5. PMID:9671506 doi:10.1021/bi980428z

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1a54"

@@ Line 7: / Line 7: @@
 <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1a54 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1a54 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1a54 RCSB], [http://www.ebi.ac.uk/pdbsum/1a54 PDBsum]</span></td></tr>
 </table>
+== Function ==
+[[http://www.uniprot.org/uniprot/PSTS_ECOLI PSTS_ECOLI]] Part of the ABC transporter complex PstSACB involved in phosphate import.
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]

1a54

From Proteopedia

Revision as of 22:46, 25 December 2014

PHOSPHATE-BINDING PROTEIN MUTANT A197C LABELLED WITH A COUMARIN FLUOROPHORE AND BOUND TO DIHYDROGENPHOSPHATE ION

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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