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Table 4 Comparison of calculated binding free energies (ΔGcalc) and maximal experimental (ΔGexp) binding free energies (kcal/mol) to lipid bilayer for different peripheral proteins.

From: The role of hydrophobic interactions in positioning of peripheral proteins in membranes

Protein name

PDB id

ΔGcalc (kcal/mol)

ΔGexp (kcal/mol)a

Reference

Predominantly nonspecific hydrophobic association

Cholesterol oxidase (Brevibacterium)

1coy

-4.1

-5.9

[105]

Cholesterol oxidase (Streptomyces)

1b4v

-7.1

-8.7

[151]

8R-lipoxygenase

1zq4

-5.0

-6.8

[104]

Snake phospholipase A2, group I

1poa

-5.4

-11.4

[98]

Snake phospholipase A2, group II

1vap

-10.2

-10.6c

[98]

Human phospholipase A2, group II

1n28

-6.3

-6.4

[57]

Voltage sensor toxin

1s6x

-5.2

-6.8

[152]

Kalata B1

1nb1

-5.4

-6.4

[153]

Phospolipase C

2ptd

-6.0

-5.6

[101]

Insect phospholipase A2

1poc

-10.3

-8.2

[154]

Human phospholipase A2, group X

1le6

-21.8

-6.1

[57]

Octreotide -2

1soc

-5.6

-5.4

[155]

Pancreatic lipase

1ethA

-16.1

-11.0

[156]

Cytotoxin 1

1tgx

-12.4

-9.6

[119]

Sapecin

1l4v

-6.6

-9.9

[121]

C1 domain of Raf-1 kinase

1faq

-8.1

-5.5

[2]

Gramicidin S

1tk2

-14.1

-12.1

[157]

Specific binding of lipid ligands (lipid clamps)

C2 domain of cPLA2

1rlw

-7.1

-11.4c

[84]

cPLA2 holoenzyme

1cjy

-9.8

-11.0

[158]

Phospholipase Cδ1

1djx

-3.2

-12.0b

[159]

C2 domain of synaptotagmin IA

1byn

-4.4

-6.5

[160]

C2 domain of PKCβ

1a25

-2.2

-7.5

[160]

C2 domain of PKCα

1dsy

-0.6

-12.8c

[161]

C2 domain of PTEN

1d5r

-2.6

-9.7

[162]

C2 domain coagulation factor Va

1sdd

-5.6

-8.9c

[163]

C2 domain coagulation factor VIII

1d7p

-8.1

-11.2

[92]

FYVE domain of Vps27

1vfy

-4.0

-10.3

[164]

ENTH domain of epsin

1h0a

-5.2

-10.5

[77]

PX domain (p40phox)

1h6h

-4.5

-12.6

[39]

PX domain (p47phox)

1o7k

-2.7

-12.1

[39]

PH domain of PLC-δ1

1mai

-3.2

-6.2

[165]

Equinatoxin II

1iaz

-2.2

-11.1

[166]

Predominantely nonspecific electrostatic binding

Charybdotoxin

2crd

-1.6

-3.6

[17]

Mitochondrial cytochrome c

1hrc

-2.0

-5.3

[76, 167]

Helix-coil transitions during binding

Magainin

2mag

-14.5

-8.0

[168]

Alamethicin

1amt

-23.7

-6.2

[169]

Zervamicin

1ih9

-14.3

-7.8

[47]

Neuropeptide Y

1icy

-9.4

-4.7

[125]

  1. aExperimental values were taken for lipid compositions that provided maximal binding affinity and at the ionic strength close to physiological conditions (~0.1 M of KCl). ΔG exp values were taken from the original publications or calculated from the published molar partition coefficients of the proteins as -RT lnK d .
  2. b Measured for isolated C2 domain of the protein.
  3. c Different binding affinities were determined for these proteins in other studies [8, 160, 170, 171].