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| == Structural highlights == | | == Structural highlights == |
| The <scene name='51/510230/Cv/5'>core of the SDM fold contains alternating β strands and α helices</scene>. SDM <scene name='51/510230/Cv/6'>active site is located between the 2 monomers</scene><ref>PMID:20876132</ref>. Water molecules are shown as red spheres. | | The <scene name='51/510230/Cv/5'>core of the SDM fold contains alternating β strands and α helices</scene>. SDM <scene name='51/510230/Cv/6'>active site is located between the 2 monomers</scene><ref>PMID:20876132</ref>. Water molecules are shown as red spheres. |
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| | ==3D structures of SAM-dependent methyltrasferase== |
| | [[SAM-dependent methyltrasferase 3D structures]] |
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| </StructureSection> | | </StructureSection> |
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| **[[2ybo]] – PsaSDM + SAH – ''Pseudomonas aeruginosa'' <br /> | | **[[2ybo]] – PsaSDM + SAH – ''Pseudomonas aeruginosa'' <br /> |
| **[[2ybq]] – PsaSDM + SAH + uroporphyrinogen <br /> | | **[[2ybq]] – PsaSDM + SAH + uroporphyrinogen <br /> |
| | **[[6uak]] – SDM + SAH – ''Lachnospiraceae bacterium'' <br /> |
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| *Chemotaxis receptor methyltransferase (CheR) | | *Chemotaxis receptor methyltransferase (CheR) |
Revision as of 08:59, 21 January 2020
| Function
SAM-dependent methyltransferase (SDM) utilizes the methyl donor S-adenosyl-L-methionine (SAM) as a cofactor to methylate proteins, small molecules, lipids and nucleic acids. SAM forms S-adenosyl-L-homocysteine (SAH) upon demethylation. About 120 members of the SDM family have been identified. They differ in their substrate specificity and the atom targeted for methylation (N, O, C, S)[1].
For Chemotaxis receptor methyltransferase CheR see details in Molecular Playground/CheR.[2].
Structural highlights
The core of the SDM fold contains alternating β strands and α helices. SDM active site is located between the 2 monomers[3]. Water molecules are shown as red spheres.
3D structures of SAM-dependent methyltrasferase
SAM-dependent methyltrasferase 3D structures
- ↑ Struck AW, Thompson ML, Wong LS, Micklefield J. S-adenosyl-methionine-dependent methyltransferases: highly versatile enzymes in biocatalysis, biosynthesis and other biotechnological applications. Chembiochem. 2012 Dec 21;13(18):2642-55. doi: 10.1002/cbic.201200556. Epub 2012, Nov 23. PMID:23180741 doi:https://dx.doi.org/10.1002/cbic.201200556
- ↑ Djordjevic S, Stock AM. Chemotaxis receptor recognition by protein methyltransferase CheR. Nat Struct Biol. 1998 Jun;5(6):446-50. PMID:9628482
- ↑ Lee JH, Bae B, Kuemin M, Circello BT, Metcalf WW, Nair SK, van der Donk WA. Characterization and structure of DhpI, a phosphonate O-methyltransferase involved in dehydrophos biosynthesis. Proc Natl Acad Sci U S A. 2010 Oct 12;107(41):17557-62. Epub 2010 Sep 27. PMID:20876132 doi:10.1073/pnas.1006848107
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3D structures of SAM-dependent methyltrasferase
Updated on 21-January-2020
{"openlevels":0}
- SAM-dependent O-methyltransferase
- SAM-dependent N-methyltransferase
- SAM-dependent C-methyltransferase
- 4m72 – ShSDM – Streptomyces hygroscopicus
- 4m73, 4m74 – ShSDM (mutant)
- 4kib – ShSDM + SAH + methylphenylpyruvate
- 4kic – ShSDM + SAM + phenylpyruvate
- 4kif, 4kig – ShSDM + phenylpyruvate
- 4m6x, 4m6y, 4m71 – ShSDM (mutant) + SAH + methylphenylpyruvate
- 5o4h – MmHCGC + SAM + pyridinol - Methanococcus maripaludis
- 5o4n, 5o4j, 5o4m – MmHCGC + SAH + pyridinol
- SAM-dependent methyltransferase
- 1wzn – SDM – Pyrococcus horikoshii
- 2igt – SDM – Agrobacterium tumefaciens
- 3cgg – CgSDM – Corynebacterium glutamicum
- 3d2l - SDM – Exiguobacterium sibiricum
- 3dh0 - SDM – Aquifex aeolicus
- 3dp7 - SDM – Bacterioides vulgatus
- 3ggd - SDM – Anabaena variabilis
- 3sm3 - SDM (mutant) – Methanosarcina mazei
- 3bkx – SDM – Lactobacillus casei
- 3kr9 – SpSDM – Streptococcus pneumonia
- SAM-dependent methyltransferase complex with SAM/SAH
- 3ku1 – SpSDM + SAM
- 3lga – PaSDM + SAH – Pyrococcus abyssi
- 3mb5 – PaSDM + SAM
- 3ou2 – SlSDM + SAH – Streptomyces luridus
- 3ou6 – SlSDM + SAM
- 3ou7 – SlSDM + SAM + phosphonic acid derivative
- 5gm1 – SbSDM + SAH – Streptomyces blastmyceticus
- 5gm2 – SbSDM + SAH + teleocidin
- 4x3q – SDM + SAH – Streptosporangium sibiricum
- 3h2b – CgSDM + pyrophosphate + SAH
- 5bp7 – SlSDM + SAH – Geobacter sulfurreducens
- 5epe – SDM + SAH – Thiobacillus denitrificans
- 5bp9 – SDM + SAH – Bacterioides fragilis
- 2ybo – PsaSDM + SAH – Pseudomonas aeruginosa
- 2ybq – PsaSDM + SAH + uroporphyrinogen
- 6uak – SDM + SAH – Lachnospiraceae bacterium
- Chemotaxis receptor methyltransferase (CheR)
- 1af7 – StCheR – Salmonella typhimurium
- 1bc5 – StCheR + chemotaxis receptor peptide
References
proteopedia link