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BIOCHEM > DEFINITION 2 > Flashcards

DEFINITION 2 Flashcards

1
Q

same direction

A

PARALLEL β-SHEETS

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2
Q

different or opposite direction

A

ANTIPARALLEL β-SHEETS

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3
Q

For determination of n-terminal amino acid using 2,4,dinitroflurobenzene

A

Sanger method

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4
Q

Other reagents used to label N-terminus:

A

a. Dansyl chloride
b. Dabsyl chloride

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5
Q

Reagent that cleaves at carboxyl end of methionine

A

Cyanogenbromide

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6
Q

Types of mutation:

A

Deletion mutation
Insertion mutation
Point mutation

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7
Q

replacement of 1

A

Point mutation

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8
Q

replacement but same amino acid

A

silent mutation

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9
Q

replacement of different amino acid

A

missense mutation

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10
Q

premature stopping of codon. Replacement of stop codon

A

nonsense mutation

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11
Q
  • Are soluble in aqueous system
  • Complex tertiary structure
  • Folded into a spherical/ globular shape
  • Some have quarternary structure
A

Globular proteins

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12
Q

Globular proteins examples:

A

HEMOGLOBIN
ALBUMIN
GLOBULIN
PROTAMINES
INSULIN
HISTONES

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13
Q

used in transporting oxygen

A

HEMOGLOBIN

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14
Q

soluble in water and salt solution

A

ALBUMIN

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15
Q

plays important role in liver function and fighting infection

A

GLOBULIN

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16
Q

used to reverse and neutralize anticoagulant effects of heparin

A

PROTAMINES

17
Q

regulatory hormone to control glucose level in bodies

A

INSULIN

18
Q
A
19
Q

protein that provides structural support for chromosomes

A

HISTONES

20
Q
  • Mainly primary and secondary structures
  • Little or no tertiary structure
  • Long parallel polypeptide chains
  • Cross linkages at intervals
  • Long fibers and sheets are formed
  • Water insoluble and physically tough
  • Serve as structural or protective elements
A

Fibrous proteins

21
Q

Fibrous proteins examples

A

KERATIN
ELASTIN
MYOSIN
COLLAGEN
SILK

22
Q

found in hair and outer layer of skin

A

KERATIN

23
Q

present in tendons, arteries or other elastic tissues/ ligaments

A

ELASTIN

24
Q

found in muscle tissues

A

MYOSIN

25
Q

major constituent of skin, tendons, bones, blood vessels and connective tissues

A

COLLAGEN

26
Q

can get from spiderwebs

A

SILK

BIOCHEM (6 decks)

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