Methionine, like cysteine, is an important sulpher bearing amino acid in protein, which can also play an crucial role in the biochemical pathways of the cell, such as in methylation. It can also be oxidized, and this property may be utilized by the cell to detect oxidative stress, because oxidation of the methionine is likely to alter the structure and properties of proteins. Methionine tends to be buried in near the hydrophobic core of the protein, but upon oxidation, it is more likely to be exposed to the aqueous solution. It's flexible side chain makes a unique contribution to the structure of the hydrophobic core, and it functions in protein-protein recognition interactions as well.

other names: 3320 63-68-3 C00073 L-2-Amino-4methylthiobutyric acid L-Methionine Methionine

Canonical SMILES: S(C)CCC(N)C(=O)O

related molecule names:
58569-55-4 C11684 MET-enkephalin Methionine enkephalin 29908-03-0 Acylcarnitine C00019 S-Adenosyl-L-methionine S-Adenosylmethionine 63-68-3 C00073 L-2-Amino-4methylthiobutyric acid L-Methionine Methionine 348-67-4 C00855 D-2-Amino-4-(methylthio)butyric acid D-Methionine 2-Amino-4-(methylthio)butyric acid 59-51-8 C01733 Methionine 65-82-7 C02712 N-Acetylmethionine 3226-65-1 C02989 L-Methionine S-oxide C03023 Peptide-L-methionine 4289-98-9 C03145 N-Formyl-L-methionine C03172 S-Methyl-L-methionine 15985-39-4 C03510 L-Methionine sulfoximine 2S,5S-Methionine sulfoximine C03829 C03895 Peptide-L-methionine (S)-S-oxide 1115-84-0 C04078 Methylmethionine sulfonium chloride Methylmethionine sulfonium salt Vitamin U 1464-42-2 C05335 Selenomethionine C05690 Se-Methylselenomethionine C05691 Se-Adenosylselenomethionine C05708 Selenomethionine se-oxide 454-41-1 Butanoic acid, 2-amino-4-(methylsulfinyl)- Butyric acid, 2-amino-4-(methylsulfinyl)- DL-Methionine sulfoxide Methionine sulfoxide Methionine, S-oxide NSC3084 SQ 2292 1115-47-5 Acetyl-DL-methionine DL-Methionine, N-acetyl- Methionine, N-acetyl-, DL- N-Acetyl-DL-methionine NSC7633 dl-Acetylmethionine (.+-.)-Methionine .alpha.-Amino-.gamma.-methylmercaptobutyric acid 59-51-8 Acimetion Banthionine Cynaron DL-2-Amino-4-(methylthio)butanoic acid DL-2-Amino-4-(methylthio)butyric acid DL-Methionine Dyprin Lobamine Meonine Mertionin Methilanin Methionine Methionine, DL- Metione NSC9241 Neston Thiomedon Urimeth 5464-31-3 DL-Methionine, N-(2-cyanoethyl)- N-(2-Cyanoethyl)-DL-methionine NSC15836 WLN: NC2MYVQ2S1 5464-40-4 DL-Methionine, N,N-bis(2-cyanoethyl)- NSC15846 WLN: NC2N2CN&YVQ2S1 .alpha.-Amino-.gamma.-methylmercaptobutyric acid .gamma.-Methylthio-.alpha.-aminobutyric acid 2-Amino-4-(methylthio)butyric acid 2-Amino-4-methylthiobutanoic acid 63-68-3 Butanoic acid, 2-amino-4-(methylthio)-, (S)- Butyric acid, 2-amino-4-(methylthio)- Cymethion L(-)-Amino-.gamma.-methylthiobutyric acid L-(-)-Methionine L-.alpha.-Amino-.gamma.-methylmercaptobutyric acid L-.gamma.-Methylthio-.alpha.-aminobutyric acid L-Methionine METHIONINE,L- Met Methionine Methionine, L- NSC22946 S-Methionine WLN: QVYZ2S1 -L 4434-61-1 DL-Methionine, N-[(phenylmethoxy)carbonyl]- DL-N-Benzyloxycarbonylmethionine Methionine, N-carboxy-, N-benzyl ester, DL- N-Carbobenzoxy-DL-methionine NSC43132 348-67-4 D-Methionine Methionine, D- NSC45689 R-Methionine Methionine sulfoximine NSC49169 4434-61-1 DL-Methionine, N-[(phenylmethoxy)carbonyl]- DL-N-Benzyloxycarbonylmethionine Methionine, N-carboxy-, N-benzyl ester, DL- N-Carbobenzoxy-DL-methionine NSC59864 820-10-0 Butanoic acid, 2-amino-4-(methylsulfonyl)-, (.+-.)- Butyric acid, 2-amino-4-(methylsulfonyl)-, DL- D,L-Methionine sulfone DL-Methionine sulfone NSC62968 Hydantoic acid, L-5,5-bis(2-chloroethyl)-2-[2-(methylthio)ethyl]-, ethyl ester L-Methionine, N-[[bis(2-chloroethyl)amino]carbonyl]-, ethyl ester NSC70633 62625-13-2 DL-Methionine, N-[(2,4-dichlorophenoxy)acetyl]- NSC87887 62625-13-2 DL-Methionine, N-[(2,4-dichlorophenoxy)acetyl]- NSC225214 Chloroacetyl-DL-.beta.-hydroxyhomomethionine A NSC270566 Chloroacetyl-DL-.beta.-hydroxyhomomethionine B NSC270703 (+-)-Methionine 59-51-8 AI3-18475 Acimetion Banthionine CCRIS 3717 Cynaron DL-2-Amino-4-(methylthio)-butyric acid DL-2-Amino-4-(methylthio)butanoic acid DL-METHIONINE DL-Methioninum Dyprin EINECS 200-432-1 FEMA No. 3301 Lobamine Meonine Mertionin Methilanin Methionine Methionine DL- Methionine, amorphous Metione NSC 9241 Neston Pedameth Racemethionine Racemethionine [USAN] Urimeth alpha-Amino-gamma-(methylthio)butyric acid alpha-Amino-gamma-methylmercaptobutyric acid alpha-Amino-gamma-methylmercaptobutyric acid (VAN) (L)-Methionine (S)-2-Amino-4-(methylthio)butanoic acid 2-Amino-4-(methylthio)butyric acid, (S)- 2-Amino-4-methylthiobutanoic acid (S)- 24425-78-3 63-68-3 7005-18-7 Butanoic acid, 2-amino-4-(methylthio)-, (S)- CCRIS 5528 CCRIS 5536 Cymethion EINECS 200-562-9 HSDB 4317 L(-)-Amino-gamma-methylthiobutyric acid L-(-)-Methionine L-Homocysteine, S-methyl- L-Methionine L-Methioninum L-alpha-Amino-gamma-methylmercaptobutyric acid L-alpha-Amino-gamma-methylthiobutyric acid L-gamma-Methylthio-alpha-aminobutyric acid Liquimeth MET METHIONINE, L- Methilanin Methionine Methionine (VAN) Methionine [USAN:INN] Methioninum [INN-Latin] Metionina [DCIT] NSC 22946 Neo-methidin S-Methionine Toxin WAR (Bacillus thuringiensis strain PS205C) h-Met-h 10402-93-4 4-04-00-03205 (Beilstein Handbook Reference) 65-82-7 98672-82-3 Acetyl-L-methionine BRN 1725552 CCRIS 5537 EINECS 200-617-7 L-(N-Acetyl)methionine L-Methionine, N-acetyl- METHIONINE, N-ACETYL- Methionamine Methionine, N-acetyl-, L- Methionine, N-acetyl-, L- (8CI) N-Acetyl-L-methionine N-Acetylmethionine NSC 118514 Thiomedon (R)-Methionine 348-67-4 D-Methionine D-Metionien [Australian] EINECS 206-483-6 METHIONINE, D- Methionine D- NSC 45689 485-80-3 S-ADENOSYLMETHIONINE (RS)-3-Hydroxy-4-(methylthio)buttersaeure 110518-19-9 120-91-2 14676-91-6 2-HYDROXY-4-(METHYLTHIO)BUTANOIC 2-Hydroxy-4-(methylthio)butanoic acid 2-Hydroxy-4-(methylthio)butyric acid 23597-90-2 4857-44-7 583-91-5 96661-25-5 Alimet Butanoic acid, 2-hydroxy-4-(methylthio)- Butyric acid, 2-hydroxy-4-(methylthio)- DL-2-Hydroxy-4-methylthiobuttersaeure Desmeninol [INN] EINECS 209-523-0 HSDB 5700 MHA MHA acid MHA-FA Methionine hydroxy analog alpha-Hydroxy-gamma-(methylmercapto)butyric acid alpha-Hydroxy-gamma-(methylthio)butyric acid alpha-Hydroxy-gamma-methylmercaptobutyric acid gamma-(Methylthio)-alpha-hydroxybutyric acid

pdb file:3320.pdb
directory:3320
CAS: 63-68-3

MOD screenshot

MOD termshot

RSS News Feed

(syndicate freely:)

Molecule News

updated Thu Sep 4 22:28:57 EDT 2008

Added quick navigation links to the left side bar. The site has reached 111 GB, and a massive backup is underway. We are still just getting started.

updated Thu Sep 4 13:30:20 EDT 2008

Added developer links to the left side bar.

updated Wed Sep 3 12:05:13 EDT 2008

I have automated the process to make molecule galleries, which I am finding very useful to my research, so I thought that I would share the opportunity and take requests. It is quick and easy. I did a bisphenol search today, and as I expected, the search turned up a few stilbenes, which is the same molecular family as resveratrol. Strikingly, Bisphenol A is a noted teratogen, which shows that care must be taken when using such molecules during pregnancy, nursing, and development. Here is a link to the bisphenol gallery.

http://molecules.gnu-darwin.org/mod/Bisphenol-more.html

If you would find it useful, I am definitely interested in taking requests for molecule galleries. Just send me the name of your favorite molecule. As you may be able to tell, we have access for galleries to about 1% or 0.5 million structures, in the total archive thus far, but it is already quite useful. The automated jobs are underway to fill in the rest. The next milestone is the capability to index and make galleries for the remaining millions of molecules for which we have pdb files already, which would be 5-10% complete. Any comments or suggestions are also welcome.

updated Tue Sep 2 14:10:15 EDT 2008

A terminal screenshot has been added to the right sidebar, in order to show the kind of code that is being used to generate the Molecules directory indices. All inquiries and suggestions are welcome.

updated Fri Aug 29 14:39:14 EDT 2008

Reaction to our website has been quite positive and encouraging, but people are anxious to see structures with improved stereochemistry. We have received many suggestions about how to make that happen faster. For the time being, we are experiencing the best structure viewing results with RasMOL. Name extraction and structure file linking jobs are underway, which is an indication that we are still in a preliminary phase. Google spiders more almost everyday, and past experience indicates that the search capability will become very useful indeed! Here is some secret mumbo jumbo. I'm afraid that my Japanese or Korean is broken at best ;-}. Enjoy!

& , .61,800 .620,000� 04� 1 25� � ��! � � � ��. �� *

updated Wed Aug 27 21:38:32 EDT 2008

An RSS News Feed has been added to the right side bar.

updated Tue Aug 26 19:27:29 EDT 2008

Several new indices have been added to our sidebar, notably; current index by name, and gallery by name. These are large indices, but also vastly incomplete, and work is underway to improve them. A list of bloggers who have mentioned the site, with links in their blogs, is now in the front sidebar, although only one is known thus far. Due to the vastness of the scale, many of these things will be divided out and buried a little deeper eventually, but they can be showcased now, and they are a good survey.

updated Tue Aug 19 19:45:09 EDT 2008

Some facts: The Molecules website contains more than 4 million small molecule structure files in pdb format, and molecular graphics representations. About 50 million molecules are still in the pipe, and they are expected to appear here over the course of the next few weeks and months. The pdb format is readable by common FOSS molecule viewer software, such as RasMol and PyMOL. In due course, we plan to provide high quality structures via energy minimization refinement, and additional resources.

Molecules@gnu-darwin.org is founded in the spirit of free software, open source, and public access. It is hoped that access to these files will be a wonderful community resource for science education, research, and entertainment as well. We are looking for investment, funding, or sponsorship in order to expedite and expand this work, and lead the field, with an eye towards an advanced, complete, synthetic, structural, and informatical bioorganome. Meanwhile, the site is already an exceptional lab resource, and molecular catalog, providing the means and building blocks towards additional novel structures. We aim to be the best.

The structural biology, protein crystallography, and molecular graphics talent that is building the Molecules archive is available to work for you in a contract or consulting arrangement. Wide-ranging expertise is available. Molecules@gnu-darwin.org is built entirely with FOSS, free and open source software, GNU-Darwin OS, and it is under the aegis of The GNU-Darwin Distribution. Here is a link to the Distribution résumé. Our founder is an X-ray laboratory admin for the Department of Biophysics and Biophysical Chemistry of Johns Hopkins University School of Medicine. You can also read his CV. We would like to build a community around this website, and we are looking for volunteers and collaborators to help. Regarding any aspect of the work of this site, please feel free to contact us, molecules@gnu-darwin.org, with gdmolecules in the subject line. Cheers!

Welcome to Molecules@gnu-darwin.org Molecule News and Molecule of the Day

This site is under constant construction

Molecule News

Welcome to Molecules@gnu-darwin.org
Molecule News and Molecule of the Day