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Ala (A) - Alanine Abu - Aminobutyric acid Aib - Aminoisobutyric acid Arg (R) - Arginine Asn (N) - Asparagine Asp (D) - Aspartic acid Cit - Citrulline Cys (C) - Cysteine Dab - Diaminobutyric acid Dap - Diaminopropionic acid Gln (Q) - Glutamine Glu (E) - Glutamic acid Gly (G) - Glycine His (H) - Histidine Hyp - Hydroxyproline Ile (I) - Isoleucine Leu (L) - Leucine Lys (K) - Lysine Met (M) - Methionine Orn - Ornitine Pen - Penicillamine Phe (F) - Phenylalanine Phg - Phenylglycine Pro (P) - Proline Ser (S) - Serine Thr (T) - Threonine Trp (W) - Tryptophan Tyr (Y) - Tyrosine Val (V) - Valine |
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GROUPS Ac - acetyl Acm - acetamidomethyl Alloc - allyloxycarbonyl Boc - tert-butoxycarbonyl Bom - benzyloxymethyl tBu - tert-butyl Bz - benzoyl Bzl (Bn) - benzyl Cbz (Z) - benzyloxycarbonyl CE - cyanoethyl Dde - dimedonylidenoethyl DMT - dimethoxytrityl Dnp - dinitrophenyl Fmoc - fluorenylomethoxycarbonyl For - formyl MMT - methoxytrityl Mom - methoxymethyl Mtt - methylotrityl OTre - trichloroethoxy TBDMS - tert-butyldimethylsilyl TMS - trimetylsilyl Tos (Ts) - tosyl Tre - trichloroethyl Troc - trichloroetoxycarbonyl Trt (Tr)- trityl |
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H - hydrogen Cl - chlorine C - carbon CH2 - methylene Me - methyl Et - ethyl Pr - propyl Bu - butyl Ph - phenyl N - nitrogen NH2 - amino O - oxygen OH - hydroxyl S - sulfur |
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A - Adenine C - Cytosine G - Guanine T - Thymine U - Uracil p - fosfate Rib - Ribose dRib - Deoxyribose |
CALCULATOR
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The calculator recognizes all elements symbols, plus deuterium (D) and tritium (T). In the simplest case just type an empirical formula (keeping in mind the rules listed under the calculator) and the result will be displayed. For example in order to calculate the mass of heavy water type D2O1.
People working with peptides or nucleotides might find the possibility of assembling the structure with ready to use building blocks useful. For example if one needs to know the mass of the protected dipeptide
Amino acid residues are marked with a blue rectangle. They can be located on a panel that is displayed when one clicks on the "Amino Acids" label. The Boc protecting group is marked with an orange rectangle and other substituents are marked with a green one. These blocks can be chosen from appropriate panels, too. When the components are being chosen their empirical formula is calculated along with their molar mass.