1kv9

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Structure at 1.9 A Resolution of a Quinohemoprotein Alcohol Dehydrogenase from Pseudomonas putida HK5

Structural highlights

1kv9 is a 1 chain structure with sequence from Pseudomonas putida. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 1.9Å
Ligands:ACN, CA, EPE, GOL, HEC, PQQ
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

QHED_PSEPU Catalyzes the dye-linked oxidation of primary alcohols to the corresponding aldehydes and the (subsequent) oxidation of the aldehydes to carboxylic acids. Exhibits activity with longer mono-alcohols (C-4 to C-7) but not with methanol or glycerol. Reacts with 1,2-propanediol and 1,3-propanediol but not with sugar alcohols such as D-sorbitol.[1] [2] [3]

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 type II quinohemoprotein alcohol dehydrogenase of Pseudomonas putida is a periplasmic enzyme that oxidizes substrate alcohols to the aldehyde and transfers electrons first to pyrroloquinoline quinone (PQQ) and then to an internal heme group. The 1.9 A resolution crystal structure reveals that the enzyme contains a large N-terminal eight-stranded beta propeller domain (approximately 60 kDa) similar to methanol dehydrogenase and a small C-terminal c-type cytochrome domain (approximately 10 kDa) similar to the cytochrome subunit of p-cresol methylhydoxylase. The PQQ is bound near the axis of the propeller domain about 14 A from the heme. A molecule of acetone, the product of the oxidation of isopropanol present during crystallization, appears to be bound in the active site cavity.

Structure at 1.9 A resolution of a quinohemoprotein alcohol dehydrogenase from Pseudomonas putida HK5.,Chen ZW, Matsushita K, Yamashita T, Fujii TA, Toyama H, Adachi O, Bellamy HD, Mathews FS Structure. 2002 Jun;10(6):837-49. PMID:12057198[4]

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

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See Also

References

  1. ↑ Matsushita K, Yamashita T, Aoki N, Toyama H, Adachi O. Electron transfer from quinohemoprotein alcohol dehydrogenase to blue copper protein azurin in the alcohol oxidase respiratory chain of Pseudomonas putida HK5. Biochemistry. 1999 May 11;38(19):6111-8. PMID:10320337 doi:http://dx.doi.org/10.1021/bi990121f
  2. ↑ Promden W, Vangnai AS, Pongsawasdi P, Adachi O, Matsushita K, Toyama H. Disruption of quinoprotein ethanol dehydrogenase gene and adjacent genes in Pseudomonas putida HK5. FEMS Microbiol Lett. 2008 Mar;280(2):203-9. doi:, 10.1111/j.1574-6968.2008.01060.x. Epub 2008 Jan 19. PMID:18218017 doi:http://dx.doi.org/10.1111/j.1574-6968.2008.01060.x
  3. ↑ Toyama H, Fujii A, Matsushita K, Shinagawa E, Ameyama M, Adachi O. Three distinct quinoprotein alcohol dehydrogenases are expressed when Pseudomonas putida is grown on different alcohols. J Bacteriol. 1995 May;177(9):2442-50. PMID:7730276
  4. ↑ Chen ZW, Matsushita K, Yamashita T, Fujii TA, Toyama H, Adachi O, Bellamy HD, Mathews FS. Structure at 1.9 A resolution of a quinohemoprotein alcohol dehydrogenase from Pseudomonas putida HK5. Structure. 2002 Jun;10(6):837-49. PMID:12057198

Contents


PDB ID 1kv9

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