Amino acid symbols

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(Created page with "The following table contains a list of the amino acid single letter codes. {| class="wikitable sortable" ! Amino Acid ! 3-Letter<ref name="Hausman" /> ! 1-Letter<ref name="Hausm...")
 
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The following table contains a list of the amino acid single letter codes.
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The following table contains a list of the amino acid 1 and 3 letter codes.
{| class="wikitable sortable"
{| class="wikitable sortable"
! Amino Acid
! Amino Acid
-
! 3-Letter<ref name="Hausman" />
+
! 3-Letter
-
! 1-Letter<ref name="Hausman" />
+
! 1-Letter
-
! Side-chain polarity<ref name="Hausman">{{Cite book|author=Hausman, Robert E.; Cooper, Geoffrey M. |title=The cell: a molecular approach |publisher=ASM Press |location=Washington, D.C |year=2004 |page=51 |isbn=0-87893-214-3}}</ref>
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! Residue mass (A0, u)
-
! Side-chain charge (pH 7.4)<ref name="Hausman" />
+
-
! [[Hydropathy index]]<ref>{{Cite journal|author=Kyte J, Doolittle RF |title=A simple method for displaying the hydropathic character of a protein |journal=Journal of Molecular Biology |volume=157 |issue=1 |pages=105–32 |year=1982 |month=May |pmid=7108955 |doi=10.1016/0022-2836(82)90515-0}}</ref>
+
-
! [[Absorbance]] λ<sub>max</sub>(nm)<ref name="Freifelder" />
+
-
! ε at λ<sub>max</sub> (x10<sup>−3</sup> M<sup>−1</sup> cm<sup>−1</sup>)<ref name="Freifelder">{{Cite book| title=Physical Biochemistry| edition=2nd| author = Freifelder, D.| publisher=W. H. Freeman and Company| isbn=0-7167-1315-2 | year=1983}}{{Page needed|date=September 2010}}</ref>
+
|- align="center"
|- align="center"
-
| [[Alanine]]
+
| [http://en.wikipedia.org/wiki/Alanine Alanine]
| Ala
| Ala
| A
| A
-
| nonpolar
+
| 71.037114
-
| neutral
+
-
| 1.8
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Arginine]]
+
| [http://en.wikipedia.org/wiki/Arginine Arginine]
| Arg
| Arg
| R
| R
-
| polar
+
| 156.101111
-
| positive
+
-
| −4.5
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Asparagine]]
+
| [http://en.wikipedia.org/wiki/Asparagine Asparagine]
| Asn
| Asn
| N
| N
-
| polar
+
| 114.042927
-
| neutral
+
-
| −3.5
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Aspartic acid]]
+
| [http://en.wikipedia.org/wiki/Aspartic%20acid Aspartic acid]
| Asp
| Asp
| D
| D
-
| polar
+
| 115.026943
-
| negative
+
-
| −3.5
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Cysteine]]
+
| [http://en.wikipedia.org/wiki/Cysteine Cysteine]
| Cys
| Cys
| C
| C
-
| polar
+
| 103.009185
-
| neutral
+
-
| 2.5
+
-
| 250
+
-
| 0.3
+
|- align="center"
|- align="center"
-
| [[Glutamic acid]]
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| [http://en.wikipedia.org/wiki/Glutamic%20acid Glutamic acid]
| Glu
| Glu
| E
| E
-
| polar
+
| 129.042593
-
| negative
+
-
| −3.5
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Glutamine]]
+
| [http://en.wikipedia.org/wiki/Glutamine Glutamine]
| Gln
| Gln
| Q
| Q
-
| polar
+
| 128.058578
-
| neutral
+
-
| −3.5
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Glycine]]
+
| [http://en.wikipedia.org/wiki/Glycine Glycine]
| Gly
| Gly
| G
| G
-
| nonpolar
+
| 57.021464
-
| neutral
+
-
| −0.4
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Histidine]]
+
| [http://en.wikipedia.org/wiki/Histidine Histidine]
| His
| His
| H
| H
-
| polar
+
| 137.058912
-
| positive(10%)
+
-
neutral(90%)
+
-
| −3.2
+
-
| 211
+
-
| 5.9
+
|- align="center"
|- align="center"
-
| [[Isoleucine]]
+
| [http://en.wikipedia.org/wiki/Isoleucine Isoleucine]
| Ile
| Ile
| I
| I
-
| nonpolar
+
| 113.084064
-
| neutral
+
-
| 4.5
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Leucine]]
+
| [http://en.wikipedia.org/wiki/Leucine Leucine]
| Leu
| Leu
| L
| L
-
| nonpolar
+
| 113.084064
-
| neutral
+
-
| 3.8
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Lysine]]
+
| [http://en.wikipedia.org/wiki/Lysine Lysine]
| Lys
| Lys
| K
| K
-
| polar
+
| 128.094963
-
| positive
+
-
| −3.9
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Methionine]]
+
| [http://en.wikipedia.org/wiki/Methionine Methionine]
| Met
| Met
| M
| M
-
| nonpolar
+
| 131.040485
-
| neutral
+
-
| 1.9
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Phenylalanine]]
+
| [http://en.wikipedia.org/wiki/Phenylalanine Phenylalanine]
| Phe
| Phe
| F
| F
-
| nonpolar
+
| 147.068414
-
| neutral
+
-
| 2.8
+
-
| 257, 206, 188
+
-
| 0.2, 9.3, 60.0
+
|- align="center"
|- align="center"
-
| [[Proline]]
+
| [http://en.wikipedia.org/wiki/Proline Proline]
| Pro
| Pro
| P
| P
-
| nonpolar
+
| 97.052764
-
| neutral
+
-
| −1.6
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Serine]]
+
| [http://en.wikipedia.org/wiki/Serine Serine]
| Ser
| Ser
| S
| S
-
| polar
+
| 87.032028
-
| neutral
+
-
| −0.8
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Threonine]]
+
| [http://en.wikipedia.org/wiki/Threonine Threonine]
| Thr
| Thr
| T
| T
-
| polar
+
| 101.047679
-
| neutral
+
-
| −0.7
+
-
|
+
-
|
+
|- align="center"
|- align="center"
-
| [[Tryptophan]]
+
| [http://en.wikipedia.org/wiki/Tryptophan Tryptophan]
| Trp
| Trp
| W
| W
-
| nonpolar
+
| 186.079313
-
| neutral
+
-
| −0.9
+
-
| 280, 219
+
-
| 5.6, 47.0
+
|- align="center"
|- align="center"
-
| [[Tyrosine]]
+
| [http://en.wikipedia.org/wiki/Tyrosine Tyrosine]
| Tyr
| Tyr
| Y
| Y
-
| polar
+
| 163.06332
-
| neutral
+
-
| −1.3
+
-
| 274, 222, 193
+
-
| 1.4, 8.0, 48.0
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|- align="center"
|- align="center"
-
| [[Valine]]
+
| [http://en.wikipedia.org/wiki/Valine Valine]
| Val
| Val
| V
| V
-
| nonpolar
+
| 99.068414
-
| neutral
+
|}
-
| 4.2
+
 
-
|
+
Additional codes for amino acids coded by unusual translations:
-
|
+
 
 +
{| class="wikitable"
 +
! Amino acid
 +
! 3-Letter
 +
! 1-Letter
 +
! Residue mass (A0, u)
 +
|- align="center"
 +
| [http://en.wikipedia.org/wiki/Selenocysteine Selenocysteine]
 +
| Sec
 +
| U
 +
| 150.95363
 +
|- align="center"
 +
| [http://en.wikipedia.org/wiki/Pyrrolysine Pyrrolysine]
 +
| Pyl
 +
| O
 +
| 237.147727
 +
|- align="center"
 +
| stop
 +
| n/a
 +
| *
 +
| n/a
 +
|}
 +
 
 +
Additional codes for ambiguous residues in protein sequences:
 +
 
 +
{| class="wikitable"
 +
! Ambiguous Amino Acids
 +
! 3-Letter
 +
! 1-Letter
 +
! X! translation
 +
|- align="center"
 +
| Asparagine or aspartic acid
 +
| Asx
 +
| B
 +
| N
 +
|- align="center"
 +
| Glutamine or glutamic acid
 +
| Glx
 +
| Z
 +
| Q
 +
|- align="center"
 +
| Leucine or Isoleucine
 +
| Xle
 +
| J
 +
| L
 +
|- align="center"
 +
| Unspecified or unknown amino acid
 +
| Xaa
 +
| X
 +
| *
|}
|}

Latest revision as of 20:14, 25 February 2019

The following table contains a list of the amino acid 1 and 3 letter codes.

Amino Acid 3-Letter 1-Letter Residue mass (A0, u)
Alanine Ala A 71.037114
Arginine Arg R 156.101111
Asparagine Asn N 114.042927
Aspartic acid Asp D 115.026943
Cysteine Cys C 103.009185
Glutamic acid Glu E 129.042593
Glutamine Gln Q 128.058578
Glycine Gly G 57.021464
Histidine His H 137.058912
Isoleucine Ile I 113.084064
Leucine Leu L 113.084064
Lysine Lys K 128.094963
Methionine Met M 131.040485
Phenylalanine Phe F 147.068414
Proline Pro P 97.052764
Serine Ser S 87.032028
Threonine Thr T 101.047679
Tryptophan Trp W 186.079313
Tyrosine Tyr Y 163.06332
Valine Val V 99.068414

Additional codes for amino acids coded by unusual translations:

Amino acid 3-Letter 1-Letter Residue mass (A0, u)
Selenocysteine Sec U 150.95363
Pyrrolysine Pyl O 237.147727
stop n/a * n/a

Additional codes for ambiguous residues in protein sequences:

Ambiguous Amino Acids 3-Letter 1-Letter X! translation
Asparagine or aspartic acid Asx B N
Glutamine or glutamic acid Glx Z Q
Leucine or Isoleucine Xle J L
Unspecified or unknown amino acid Xaa X *
Retrieved from "http://wiki.thegpm.org/wiki/Amino_acid_symbols"
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