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Amino Acid Flashcards: 20 Side-Chain Structures & Codes

Learn the 20 standard amino acids with 120 flashcards for side-chain recognition and drawing, plus one- and three-letter code recall in both directions.

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Apie šį rinkinį

These amino acid flashcards train the 20 standard amino acids as six separate recall tasks. You’ll practice side-chain structure → amino-acid name, amino-acid name → side-chain drawing, amino-acid name → three-letter code, three-letter code → amino-acid name, amino-acid name → one-letter code, and one-letter code → amino-acid name. Each target has its own card, so remembering a code never hides a missed structure.

The structure cards show only the variable side chain. A small Cα attachment marker fixes the convention without turning the shared amino-acid backbone into another recognition task; proline also shows the side chain’s connection to the backbone nitrogen. The diagrams use one neutral connectivity convention. They do not test pH-dependent charge states or stereochemistry.

The fixed sequence introduces each structure before its drawing prompt and each code before its reverse lookup for the same amino acid. It interleaves all six directions, keeps every same-amino-acid variant at least three unrelated cards apart, and separates visually or code-confusable concepts. The review scheduler handles longer-term spacing after installation.

The deck deliberately leaves out side-chain class labels because classification schemes vary. It also excludes pKa values, charge-state tables, isoelectric points, codons, nutrition categories, full-backbone recognition, nonstandard amino acids and ambiguous sequence symbols, peptide-bond and protein-folding trivia, and exam, clinical, disease, supplement, dietary, or pronunciation material. Those mappings either vary by convention or belong outside this focused side-chain-and-code recall set.

IUPAC-IUB nomenclature recommendations, NCBI’s overview of amino acids and their side chains, and the NCBI amino-acid code table were used only to verify common-knowledge facts. All prompts, answers, selection, order, molecular diagrams, metadata, and cover composition were created independently. No source or competitor prose, images, screenshots, trade dress, or logos were copied. Facts are not claimed as proprietary. The original wording, organization, metadata, diagrams, and cover are dedicated under CC0 1.0 to the extent applicable rights exist.

Šio rinkinio kortelės

  1. 1 kortelė

    Klausimas

    Side-chain diagram showing CH₂ joined to a five-membered ring containing NH and N from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Histidine — side chain: Cα–CH₂–imidazolyl.

  2. 2 kortelė

    Klausimas

    Valine → three-letter code

    Atsakymas

    Val

  3. 3 kortelė

    Klausimas

    Serine → one-letter code

    Atsakymas

    S

  4. 4 kortelė

    Klausimas

    Side-chain diagram showing CH₂–C(=O)–NH₂ from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Asparagine — side chain: Cα–CH₂–C(=O)–NH₂.

  5. 5 kortelė

    Klausimas

    Phenylalanine → three-letter code

    Atsakymas

    Phe

  6. 6 kortelė

    Klausimas

    Lysine → one-letter code

    Atsakymas

    K

  7. 7 kortelė

    Klausimas

    Side-chain diagram showing one CH₃ group bonded to the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Alanine — side chain: Cα–CH₃.

  8. 8 kortelė

    Klausimas

    Isoleucine → three-letter code

    Atsakymas

    Ile

  9. 9 kortelė

    Klausimas

    Cysteine → one-letter code

    Atsakymas

    C

  10. 10 kortelė

    Klausimas

    Side-chain diagram showing CH₂–C(=O)–OH from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Aspartate — side chain: Cα–CH₂–C(=O)–OH.

  11. 11 kortelė

    Klausimas

    Tyrosine → three-letter code

    Atsakymas

    Tyr

  12. 12 kortelė

    Klausimas

    Arginine → one-letter code

    Atsakymas

    R

  13. 13 kortelė

    Klausimas

    Side-chain diagram showing three CH₂ groups linking the Cα and Nα attachment markers.

    Which amino acid has this side chain?

    Atsakymas

    Proline — side chain: Cα–(CH₂)₃–Nα.

  14. 14 kortelė

    Klausimas

    Leucine → three-letter code

    Atsakymas

    Leu

  15. 15 kortelė

    Klausimas

    Threonine → one-letter code

    Atsakymas

    T

  16. 16 kortelė

    Klausimas

    Side-chain diagram showing CH₂–CH₂–C(=O)–NH₂ from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Glutamine — side chain: Cα–CH₂–CH₂–C(=O)–NH₂.

  17. 17 kortelė

    Klausimas

    Tryptophan → three-letter code

    Atsakymas

    Trp

  18. 18 kortelė

    Klausimas

    Methionine → one-letter code

    Atsakymas

    M

  19. 19 kortelė

    Klausimas

    Side-chain diagram showing a hydrogen bonded to the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Glycine — side chain: Cα–H.

  20. 20 kortelė

    Klausimas

    Glutamate → three-letter code

    Atsakymas

    Glu

  21. 21 kortelė

    Klausimas

    Val → amino-acid name

    Atsakymas

    Valine

  22. 22 kortelė

    Klausimas

    S → amino-acid name

    Atsakymas

    Serine

  23. 23 kortelė

    Klausimas

    Asparagine → three-letter code

    Atsakymas

    Asn

  24. 24 kortelė

    Klausimas

    Phenylalanine → one-letter code

    Atsakymas

    F

  25. 25 kortelė

    Klausimas

    Side-chain diagram showing (CH₂)₄–NH₂ from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Lysine — side chain: Cα–(CH₂)₄–NH₂.

  26. 26 kortelė

    Klausimas

    Alanine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing one CH₃ group bonded to the Cα attachment marker.

    Side chain: Cα–CH₃.

  27. 27 kortelė

    Klausimas

    Ile → amino-acid name

    Atsakymas

    Isoleucine

  28. 28 kortelė

    Klausimas

    C → amino-acid name

    Atsakymas

    Cysteine

  29. 29 kortelė

    Klausimas

    Aspartate → three-letter code

    Atsakymas

    Asp

  30. 30 kortelė

    Klausimas

    Tyrosine → one-letter code

    Atsakymas

    Y

  31. 31 kortelė

    Klausimas

    Side-chain diagram showing (CH₂)₃–NH–C(=NH)–NH₂ from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Arginine — side chain: Cα–(CH₂)₃–NH–C(=NH)–NH₂.

  32. 32 kortelė

    Klausimas

    Proline → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing three CH₂ groups linking the Cα and Nα attachment markers.

    Side chain: Cα–(CH₂)₃–Nα.

  33. 33 kortelė

    Klausimas

    Leu → amino-acid name

    Atsakymas

    Leucine

  34. 34 kortelė

    Klausimas

    T → amino-acid name

    Atsakymas

    Threonine

  35. 35 kortelė

    Klausimas

    Glutamine → three-letter code

    Atsakymas

    Gln

  36. 36 kortelė

    Klausimas

    Tryptophan → one-letter code

    Atsakymas

    W

  37. 37 kortelė

    Klausimas

    Side-chain diagram showing CH₂–CH₂–S–CH₃ from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Methionine — side chain: Cα–CH₂–CH₂–S–CH₃.

  38. 38 kortelė

    Klausimas

    Glycine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing a hydrogen bonded to the Cα attachment marker.

    Side chain: Cα–H.

  39. 39 kortelė

    Klausimas

    Glu → amino-acid name

    Atsakymas

    Glutamate

  40. 40 kortelė

    Klausimas

    Histidine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH₂ joined to a five-membered ring containing NH and N from the Cα attachment marker.

    Side chain: Cα–CH₂–imidazolyl.

  41. 41 kortelė

    Klausimas

    K → amino-acid name

    Atsakymas

    Lysine

  42. 42 kortelė

    Klausimas

    Alanine → three-letter code

    Atsakymas

    Ala

  43. 43 kortelė

    Klausimas

    Isoleucine → one-letter code

    Atsakymas

    I

  44. 44 kortelė

    Klausimas

    Side-chain diagram showing CH₂–SH from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Cysteine — side chain: Cα–CH₂–SH.

  45. 45 kortelė

    Klausimas

    Aspartate → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH₂–C(=O)–OH from the Cα attachment marker.

    Side chain: Cα–CH₂–C(=O)–OH.

  46. 46 kortelė

    Klausimas

    Tyr → amino-acid name

    Atsakymas

    Tyrosine

  47. 47 kortelė

    Klausimas

    R → amino-acid name

    Atsakymas

    Arginine

  48. 48 kortelė

    Klausimas

    Proline → three-letter code

    Atsakymas

    Pro

  49. 49 kortelė

    Klausimas

    Leucine → one-letter code

    Atsakymas

    L

  50. 50 kortelė

    Klausimas

    Side-chain diagram showing CH bonded to OH and CH₃ from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Threonine — side chain: Cα–CH(OH)–CH₃.

  51. 51 kortelė

    Klausimas

    Glutamine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH₂–CH₂–C(=O)–NH₂ from the Cα attachment marker.

    Side chain: Cα–CH₂–CH₂–C(=O)–NH₂.

  52. 52 kortelė

    Klausimas

    Trp → amino-acid name

    Atsakymas

    Tryptophan

  53. 53 kortelė

    Klausimas

    M → amino-acid name

    Atsakymas

    Methionine

  54. 54 kortelė

    Klausimas

    Glycine → three-letter code

    Atsakymas

    Gly

  55. 55 kortelė

    Klausimas

    Glutamate → one-letter code

    Atsakymas

    E

  56. 56 kortelė

    Klausimas

    Histidine → three-letter code

    Atsakymas

    His

  57. 57 kortelė

    Klausimas

    Valine → one-letter code

    Atsakymas

    V

  58. 58 kortelė

    Klausimas

    Side-chain diagram showing CH₂–OH from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Serine — side chain: Cα–CH₂–OH.

  59. 59 kortelė

    Klausimas

    Asparagine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH₂–C(=O)–NH₂ from the Cα attachment marker.

    Side chain: Cα–CH₂–C(=O)–NH₂.

  60. 60 kortelė

    Klausimas

    Phe → amino-acid name

    Atsakymas

    Phenylalanine

    Abstract molecular study scene with colorful ball-and-stick side-chain forms arranged around an open center.

    120 kortelių

    Amino Acid Flashcards: 20 Side-Chain Structures & Codes

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  61. 61 kortelė

    Klausimas

    I → amino-acid name

    Atsakymas

    Isoleucine

  62. 62 kortelė

    Klausimas

    Cysteine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH₂–SH from the Cα attachment marker.

    Side chain: Cα–CH₂–SH.

  63. 63 kortelė

    Klausimas

    Aspartate → one-letter code

    Atsakymas

    D

  64. 64 kortelė

    Klausimas

    Side-chain diagram showing CH₂ joined to a six-membered ring with an opposite OH group from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Tyrosine — side chain: Cα–CH₂–C₆H₄–OH (para).

  65. 65 kortelė

    Klausimas

    Arginine → three-letter code

    Atsakymas

    Arg

  66. 66 kortelė

    Klausimas

    Pro → amino-acid name

    Atsakymas

    Proline

  67. 67 kortelė

    Klausimas

    L → amino-acid name

    Atsakymas

    Leucine

  68. 68 kortelė

    Klausimas

    Threonine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH bonded to OH and CH₃ from the Cα attachment marker.

    Side chain: Cα–CH(OH)–CH₃.

  69. 69 kortelė

    Klausimas

    Glutamine → one-letter code

    Atsakymas

    Q

  70. 70 kortelė

    Klausimas

    Side-chain diagram showing the Cα attachment marker joined through CH₂ to position 3 of fused five- and six-membered rings containing NH.

    Which amino acid has this side chain?

    Atsakymas

    Tryptophan — side chain: Cα–CH₂–indol-3-yl.

  71. 71 kortelė

    Klausimas

    Methionine → three-letter code

    Atsakymas

    Met

  72. 72 kortelė

    Klausimas

    Gly → amino-acid name

    Atsakymas

    Glycine

  73. 73 kortelė

    Klausimas

    E → amino-acid name

    Atsakymas

    Glutamate

  74. 74 kortelė

    Klausimas

    His → amino-acid name

    Atsakymas

    Histidine

  75. 75 kortelė

    Klausimas

    V → amino-acid name

    Atsakymas

    Valine

  76. 76 kortelė

    Klausimas

    Serine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH₂–OH from the Cα attachment marker.

    Side chain: Cα–CH₂–OH.

  77. 77 kortelė

    Klausimas

    Asparagine → one-letter code

    Atsakymas

    N

  78. 78 kortelė

    Klausimas

    Side-chain diagram showing CH₂ joined to a six-membered ring with alternating double bonds from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Phenylalanine — side chain: Cα–CH₂–C₆H₅.

  79. 79 kortelė

    Klausimas

    Lysine → three-letter code

    Atsakymas

    Lys

  80. 80 kortelė

    Klausimas

    Ala → amino-acid name

    Atsakymas

    Alanine

  81. 81 kortelė

    Klausimas

    Proline → one-letter code

    Atsakymas

    P

  82. 82 kortelė

    Klausimas

    Side-chain diagram showing CH₂–CH with two terminal CH₃ branches from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Leucine — side chain: Cα–CH₂–CH(CH₃)₂.

  83. 83 kortelė

    Klausimas

    Threonine → three-letter code

    Atsakymas

    Thr

  84. 84 kortelė

    Klausimas

    Gln → amino-acid name

    Atsakymas

    Glutamine

  85. 85 kortelė

    Klausimas

    W → amino-acid name

    Atsakymas

    Tryptophan

  86. 86 kortelė

    Klausimas

    Methionine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH₂–CH₂–S–CH₃ from the Cα attachment marker.

    Side chain: Cα–CH₂–CH₂–S–CH₃.

  87. 87 kortelė

    Klausimas

    Glycine → one-letter code

    Atsakymas

    G

  88. 88 kortelė

    Klausimas

    Side-chain diagram showing CH₂–CH₂–C(=O)–OH from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Glutamate — side chain: Cα–CH₂–CH₂–C(=O)–OH.

  89. 89 kortelė

    Klausimas

    Histidine → one-letter code

    Atsakymas

    H

  90. 90 kortelė

    Klausimas

    Side-chain diagram showing CH bonded to two CH₃ branches from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Valine — side chain: Cα–CH(CH₃)₂.

  91. 91 kortelė

    Klausimas

    Serine → three-letter code

    Atsakymas

    Ser

  92. 92 kortelė

    Klausimas

    Asn → amino-acid name

    Atsakymas

    Asparagine

  93. 93 kortelė

    Klausimas

    F → amino-acid name

    Atsakymas

    Phenylalanine

  94. 94 kortelė

    Klausimas

    Lysine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing (CH₂)₄–NH₂ from the Cα attachment marker.

    Side chain: Cα–(CH₂)₄–NH₂.

  95. 95 kortelė

    Klausimas

    Alanine → one-letter code

    Atsakymas

    A

  96. 96 kortelė

    Klausimas

    Side-chain diagram showing CH with one CH₃ branch and one CH₂–CH₃ branch from the Cα attachment marker.

    Which amino acid has this side chain?

    Atsakymas

    Isoleucine — side chain: Cα–CH(CH₃)–CH₂–CH₃.

  97. 97 kortelė

    Klausimas

    Cysteine → three-letter code

    Atsakymas

    Cys

  98. 98 kortelė

    Klausimas

    Asp → amino-acid name

    Atsakymas

    Aspartate

  99. 99 kortelė

    Klausimas

    Y → amino-acid name

    Atsakymas

    Tyrosine

  100. 100 kortelė

    Klausimas

    Arginine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing (CH₂)₃–NH–C(=NH)–NH₂ from the Cα attachment marker.

    Side chain: Cα–(CH₂)₃–NH–C(=NH)–NH₂.

  101. 101 kortelė

    Klausimas

    Ser → amino-acid name

    Atsakymas

    Serine

  102. 102 kortelė

    Klausimas

    N → amino-acid name

    Atsakymas

    Asparagine

  103. 103 kortelė

    Klausimas

    Phenylalanine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH₂ joined to a six-membered ring with alternating double bonds from the Cα attachment marker.

    Side chain: Cα–CH₂–C₆H₅.

  104. 104 kortelė

    Klausimas

    Lys → amino-acid name

    Atsakymas

    Lysine

  105. 105 kortelė

    Klausimas

    A → amino-acid name

    Atsakymas

    Alanine

  106. 106 kortelė

    Klausimas

    Isoleucine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH with one CH₃ branch and one CH₂–CH₃ branch from the Cα attachment marker.

    Side chain: Cα–CH(CH₃)–CH₂–CH₃.

  107. 107 kortelė

    Klausimas

    Cys → amino-acid name

    Atsakymas

    Cysteine

  108. 108 kortelė

    Klausimas

    D → amino-acid name

    Atsakymas

    Aspartate

  109. 109 kortelė

    Klausimas

    Tyrosine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH₂ joined to a six-membered ring with an opposite OH group from the Cα attachment marker.

    Side chain: Cα–CH₂–C₆H₄–OH (para).

  110. 110 kortelė

    Klausimas

    Arg → amino-acid name

    Atsakymas

    Arginine

  111. 111 kortelė

    Klausimas

    P → amino-acid name

    Atsakymas

    Proline

  112. 112 kortelė

    Klausimas

    Leucine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH₂–CH with two terminal CH₃ branches from the Cα attachment marker.

    Side chain: Cα–CH₂–CH(CH₃)₂.

  113. 113 kortelė

    Klausimas

    Thr → amino-acid name

    Atsakymas

    Threonine

  114. 114 kortelė

    Klausimas

    Q → amino-acid name

    Atsakymas

    Glutamine

  115. 115 kortelė

    Klausimas

    Tryptophan → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing the Cα attachment marker joined through CH₂ to position 3 of fused five- and six-membered rings containing NH.

    Side chain: Cα–CH₂–indol-3-yl.

  116. 116 kortelė

    Klausimas

    Met → amino-acid name

    Atsakymas

    Methionine

  117. 117 kortelė

    Klausimas

    G → amino-acid name

    Atsakymas

    Glycine

  118. 118 kortelė

    Klausimas

    Glutamate → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH₂–CH₂–C(=O)–OH from the Cα attachment marker.

    Side chain: Cα–CH₂–CH₂–C(=O)–OH.

  119. 119 kortelė

    Klausimas

    H → amino-acid name

    Atsakymas

    Histidine

  120. 120 kortelė

    Klausimas

    Valine → draw or recall the side chain

    Atsakymas

    Side-chain diagram showing CH bonded to two CH₃ branches from the Cα attachment marker.

    Side chain: Cα–CH(CH₃)₂.

Abstract molecular study scene with colorful ball-and-stick side-chain forms arranged around an open center.

120 kortelių

Amino Acid Flashcards: 20 Side-Chain Structures & Codes

Mokytis iš šio rinkinio nemokamai

Atsidarys Nibomo ir galėsite pradėti mokytis.