A135024 Number of atoms in n-th amino acid ordered by the alphabetic order of their one-letter abbreviations.

13, 14, 16, 19, 23, 10, 20, 22, 24, 22, 20, 17, 17, 20, 26, 14, 17, 19, 27, 24

Offset

1,1

Comments

These are the 20 standard human amino acids; humans have hydroxyproline as a 21st amino acid, but only in collagen. - Jonathan Vos Post, Feb 22 2009

The order in which these were discovered is given by Pert, p.65, as N, C, L, G, Y, D, A, V, S, E, F, R, K, H, P, W, hydroxyproline, I, M, T. - Jonathan Vos Post, Apr 30 2013

References

Paula Yurkanis Bruice, Organic Chemistry, Pearson International Edition, Fifth Edition, pages 1019-1021.

Jonathan Clayden, Nick Greeves, Stuart Warren and Peter Wothers, Organic Chemistry, Oxford University Press, First published 2001, pages 1353-1356.

Peter Karlson, Biokemija, Skolska Knjiga, Zagreb (Croatian), page 23.

Candace B. Pert, Molecules of Emotion, Touchstone/Simon & Schuster, 1999.

Stanley H. Pine, Organska Kemija, Skolska Knjiga, Zagreb (Croatian), pages 813-814.

David W. A. Sharp, The Penguin Dictionary of Chemistry, Penguin Books, Third Edition.

Links

Table of n, a(n) for n=1..20.

Example

Alanine (denoted by A) C(3)H(7)N(1)O(2) consists of 13 atoms.
Cysteine (denoted by C) C(3)H(7)N(1)O(2)S(1) consists of 14 atoms.
Aspartic acid (denoted by D) C(4)H(7)N(1)O(4) consists of 16 atoms.
Glutamic acid (denoted by E) C(5)H(9)N(1)O(4) consists of 19 atoms.
Phenylalanine (denoted by F) C(9)H(11)N(1)O(2) consists of 23 atoms.
Glycine (denoted by G) C(2)H(5)N(1)O(2) consists of 10 atoms.
Histidine (denoted by H) C(6)H(9)N(3)O(2) consists of 20 atoms.
Isoleucine (denoted by I) C(6)H(13)N(1)O(2) consists of 22 atoms.
Lysine (denoted by K) C(6)H(14)N(2)O(2) consists of 24 atoms.
Leucine (denoted by L) C(6)H(13)N(1)O(2) consists of 22 atoms.
Methionine (denoted by M) C(5)H(11)N(1)O(2)S(1) consists of 20 atoms.
Asparagine (denoted by N) C(4)H(8)N(2)O(3) consists of 17 atoms.
Proline (denoted by P) C(5)H(9)N(1)O(2) consists of 17 atoms.
Glutamine (denoted by Q) C(5)H(10)N(2)O(3) consists of 20 atoms.
Arginine (denoted by R) C(6)H(14)N(4)O(2) consists of 26 atoms.
Serine (denoted by S) C(3)H(7)N(1)O(3) consists of 14 atoms.
Threonine (denoted by T) C(4)H(9)N(1)O(3) consists of 17 atoms.
Valine (denoted by V) C(5)H(11)N(1)O(2) consists of 19 atoms.
Tryptophan (denoted by W) C(11)H(12)N(2)O(2) consists of 27 atoms.
Tyrosine (denoted by Y) C(9)H(11)N(1)O(3) consists of 24 atoms.
There are two abbreviations for each amino acid. Here I use the first abbreviation of one letter which determines the order.
Each formula is written in two orders: oxygen-nitrogen and nitrogen-oxygen. The last column denotes the page in the mentioned dictionary where the corresponding data can be found.
| n  | abb1 | abb2 | amino acid | (O,N)-order | (N,O)-order | atoms | page |
----------------------------------------------------------------------------
| 1  |   A  | Ala | alanine       | C3H7O2N    | C3H7NO2    |  13   | 10  |
| 2  |   C  | Cys | cysteine      | C3H7O2NS   | C3H7NO2S   |  14   | 116 |
| 3  |   D  | Asp | aspartic acid | C4H7O4N    | C4H7NO4    |  16   | 35  |
| 4  |   E  | Glu | glutamic acid | C5H9O4N    | C5H9NO4    |  19   | 187 |
| 5  |   F  | Phe | phenylalanine | C9H11O2N   | C9H11NO2   |  23   | 304 |
| 6  |   G  | Gly | glycine       | C2H5O2N    | C2H5NO2    |  10   | 188 |
| 7  |   H  | His | histidine     | C6H9O2N3   | C6H9N3O2   |  20   | 199 |
| 8  |   I  | Ile | isoleucine    | C6H13O2N   | C6H13NO2   |  22   | 220 |
| 9  |   K  | Lys | lysine        | C6H14O2N2  | C6H14N2O2  |  24   | 238 |
| 10 |   L  | Leu | leucine       | C6H13O2N   | C6H13NO2   |  22   | 233 |
| 11 |   M  | Met | methionine    | C5H11O2NS  | C5H11NO2S  |  20   | 254 |
| 12 |   N  | Asn | asparagine    | C4H8O3N2   | C4H8N2O3   |  17   | 34  |
| 13 |   P  | Pro | proline       | C5H9O2N    | C5H9NO2    |  17   | 327 |
| 14 |   Q  | Gln | glutamine     | C5H10O3N2  | C5H10N2O3  |  20   | 187 |
| 15 |   R  | Arg | arginine      | C6H14O2N4  | C6H14N4O2  |  26   | 32  |
| 16 |   S  | Ser | serine        | C3H7O3N    | C3H7NO3    |  14   | 357 |
| 17 |   T  | Thr | threonine     | C4H9O3N    | C4H9NO3    |  17   | 397 |
| 18 |   V  | Val | valine        | C5H11O2N   | C5H11NO2   |  19   | 417 |
| 19 |   W  | Trp | tryptophan    | C11H12O2N2 | C11H12N2O2 |  27   | 409 |
| 20 |   Y  | Tyr | tyrosine      | C9H11O3N   | C9H11NO3   |  24   | 411 |

Crossrefs

Sequence in context: A079495 A076204 A267382 * A173036 A241749 A098045

Adjacent sequences: A135021 A135022 A135023 * A135025 A135026 A135027

Keyword

nonn,fini,full

Author

Neven Juric (neven.juric(AT)apis-it.hr), Jan 10 2009

Status

approved