- PDB-4l6r: Structure of the class B human glucagon G protein coupled receptor -
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Open data
ID or keywords:
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Basic information
Entry
Database: PDB / ID: 4l6r
Title
Structure of the class B human glucagon G protein coupled receptor
Components
Soluble cytochrome b562 and Glucagon receptor chimera
Keywords
MEMBRANE PROTEIN / Human glucagon receptor / diabetes / GPCR network / PSI-Biology / novel protein engineering / Structural Genomics / Protein Structure Initiative / GPCR / membrane
Function / homology
Function and homology information
regulation of glycogen metabolic process / glucagon receptor activity / response to starvation / peptide hormone binding / response to nutrient / cellular response to glucagon stimulus / guanyl-nucleotide exchange factor activity / cellular response to starvation / generation of precursor metabolites and energy / electron transport chain ...regulation of glycogen metabolic process / glucagon receptor activity / response to starvation / peptide hormone binding / response to nutrient / cellular response to glucagon stimulus / guanyl-nucleotide exchange factor activity / cellular response to starvation / generation of precursor metabolites and energy / electron transport chain / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / regulation of blood pressure / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Glucagon signaling in metabolic regulation / Glucagon-type ligand receptors / glucose homeostasis / G alpha (s) signalling events / G alpha (q) signalling events / periplasmic space / electron transfer activity / cell surface receptor signaling pathway / iron ion binding / heme binding / positive regulation of gene expression / membrane / plasma membrane Similarity search - Function
GPCR, family 2, glucagon receptor / GPCR, family 2, glucagon-like peptide-1/glucagon receptor / Cytochrome c/b562 / G-protein coupled receptors family 2 signature 1. / : / GPCR, family 2, extracellular hormone receptor domain / G-protein coupled receptors family 2 profile 1. / Domain present in hormone receptors / Hormone receptor domain / GPCR family 2, extracellular hormone receptor domain superfamily ...GPCR, family 2, glucagon receptor / GPCR, family 2, glucagon-like peptide-1/glucagon receptor / Cytochrome c/b562 / G-protein coupled receptors family 2 signature 1. / : / GPCR, family 2, extracellular hormone receptor domain / G-protein coupled receptors family 2 profile 1. / Domain present in hormone receptors / Hormone receptor domain / GPCR family 2, extracellular hormone receptor domain superfamily / G-protein coupled receptors family 2 signature 2. / GPCR, family 2, secretin-like, conserved site / GPCR, family 2, secretin-like / 7 transmembrane receptor (Secretin family) / GPCR, family 2-like / G-protein coupled receptors family 2 profile 2. / Rhopdopsin 7-helix transmembrane proteins / Rhodopsin 7-helix transmembrane proteins / Cytochrome b562 / Cytochrome b562 / Cytochrome c/b562 / Four Helix Bundle (Hemerythrin (Met), subunit A) / Up-down Bundle / Mainly Alpha Similarity search - Domain/homology
Resolution: 3.3→33.12 Å / Cor.coef. Fo:Fc: 0.8834 / Cor.coef. Fo:Fc free: 0.8424 / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber Details: 1. THE DIFFRACTION DATA ARE ANISOTROPIC. THE RESOLUTION LIMITS OF A*, B*, AND C* AXES ARE 3.3, 3.4 AND 3.3A, RESPECTIVELY. DIFFRAC DATA WERE INCLUDED IN REFINEMENT TO 3.3A IN THE A* AND C* ...Details: 1. THE DIFFRACTION DATA ARE ANISOTROPIC. THE RESOLUTION LIMITS OF A*, B*, AND C* AXES ARE 3.3, 3.4 AND 3.3A, RESPECTIVELY. DIFFRAC DATA WERE INCLUDED IN REFINEMENT TO 3.3A IN THE A* AND C* DIRECTIONS, WITH AN OVERALL EFFECTIVE AND REPORTED RESOLUTION OF 3.4A. 2. THE DENSITIES AT THE BOTTOM OF HELIX VI AND VII NEAR LYS349 WERE MODELLED AS A PEG-400 FRAGMENT (PEG) MOLECULE FROM THE CRYSTALLIZATION CONDITION.
Rfactor
Num. reflection
% reflection
Selection details
Rfree
0.3385
430
4.79 %
RANDOM
Rwork
0.2835
-
-
-
obs
0.2862
8981
91.59 %
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Displacement parameters
Biso mean: 126.83 Å2
Baniso -1
Baniso -2
Baniso -3
1-
-1.1296 Å2
0 Å2
0 Å2
2-
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21.5553 Å2
0 Å2
3-
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-20.4256 Å2
Refine analyze
Luzzati coordinate error obs: 1.234 Å
Refinement step
Cycle: LAST / Resolution: 3.3→33.12 Å
Protein
Nucleic acid
Ligand
Solvent
Total
Num. atoms
3049
0
7
0
3056
Refine LS restraints
Refine-ID
Type
Dev ideal
Number
Restraint function
Weight
X-RAY DIFFRACTION
t_bond_d
0.01
3118
HARMONIC
2
X-RAY DIFFRACTION
t_angle_deg
1.04
4228
HARMONIC
2.5
X-RAY DIFFRACTION
t_dihedral_angle_d
1432
SINUSOIDAL
15
X-RAY DIFFRACTION
t_incorr_chiral_ct
X-RAY DIFFRACTION
t_pseud_angle
X-RAY DIFFRACTION
t_trig_c_planes
65
HARMONIC
2
X-RAY DIFFRACTION
t_gen_planes
459
HARMONIC
5
X-RAY DIFFRACTION
t_it
3118
HARMONIC
20
X-RAY DIFFRACTION
t_nbd
X-RAY DIFFRACTION
t_omega_torsion
2.79
X-RAY DIFFRACTION
t_other_torsion
1.81
X-RAY DIFFRACTION
t_improper_torsion
X-RAY DIFFRACTION
t_chiral_improper_torsion
403
SEMIHARMONIC
5
X-RAY DIFFRACTION
t_sum_occupancies
X-RAY DIFFRACTION
t_utility_distance
X-RAY DIFFRACTION
t_utility_angle
X-RAY DIFFRACTION
t_utility_torsion
X-RAY DIFFRACTION
t_ideal_dist_contact
3725
SEMIHARMONIC
4
LS refinement shell
Resolution: 3.3→3.69 Å / Total num. of bins used: 5
Rfactor
Num. reflection
% reflection
Rfree
0.3136
118
5.11 %
Rwork
0.2812
2190
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all
0.283
2308
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obs
-
2190
91.59 %
Refinement TLS params.
Method: refined / Refine-ID: X-RAY DIFFRACTION
ID
L11 (°2)
L12 (°2)
L13 (°2)
L22 (°2)
L23 (°2)
L33 (°2)
S11 (Å °)
S12 (Å °)
S13 (Å °)
S21 (Å °)
S22 (Å °)
S23 (Å °)
S31 (Å °)
S32 (Å °)
S33 (Å °)
T11 (Å2)
T12 (Å2)
T13 (Å2)
T22 (Å2)
T23 (Å2)
T33 (Å2)
Origin x (Å)
Origin y (Å)
Origin z (Å)
1
16.6309
2.3438
3.4299
6.0851
0.6799
14.8771
0.1704
-0.1676
-0.54
0.7744
-0.1591
-0.9671
-0.0046
0.2207
-0.0112
0.1043
-0.2881
-0.1636
0.047
0.1298
-0.5395
16.4176
4.5252
-2.0054
2
0.9466
0.6168
1.8062
1.2789
2.035
5.4002
0.3433
0.0555
-0.2635
0.1079
0.3087
-0.299
-0.3608
1.0885
-0.652
-0.379
-0.2048
0.0527
0.6079
-0.1883
-0.6079
16.1524
-11.4685
-44.8801
Refinement TLS group
ID
Refine-ID
Refine TLS-ID
Selection details
Auth asym-ID
Auth seq-ID
1
X-RAY DIFFRACTION
1
{ A|1001 - A|1106 }
A
1001 - 1106
2
X-RAY DIFFRACTION
2
{ A|123 - A|429 }
A
123 - 429
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