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NMR processing:
MDD
NMR assignment:
Backbone:
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MARS
UNIO Match
PINE
Side-chains:
UNIO ATNOS-Ascan
NOEs:
UNIO ATNOS-Candid
UNIO Candid
ASDP
Structure from NMR restraints:
Ab initio:
GeNMR
Cyana
XPLOR-NIH
ASDP
UNIO ATNOS-Candid
UNIO Candid
Fragment-based:
BMRB CS-Rosetta
Rosetta-NMR (Robetta)
Template-based:
GeNMR
I-TASSER
Refinement:
Amber
Structure from chemical shifts:
Fragment-based:
WeNMR CS-Rosetta
BMRB CS-Rosetta
Homology-based:
CS23D
Simshift
Torsion angles from chemical shifts:
Preditor
TALOS
Promega- Proline
Secondary structure from chemical shifts:
CSI (via RCI server)
TALOS
MICS caps, β-turns
d2D
PECAN
Flexibility from chemical shifts:
RCI
Interactions from chemical shifts:
HADDOCK
Chemical shifts re-referencing:
Shiftcor
UNIO Shiftinspector
LACS
CheckShift
RefDB
NMR model quality:
NOEs, other restraints:
PROSESS
PSVS
RPF scores
iCing
Chemical shifts:
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CheShift2
Vasco
iCing
RDCs:
DC
Anisofit
Pseudocontact shifts:
Anisofit
Protein geomtery:
Resolution-by-Proxy
PROSESS
What-If
iCing
PSVS
MolProbity
SAVES2 or SAVES4
Vadar
Prosa
ProQ
MetaMQAPII
PSQS
Eval123D
STAN
Ramachandran Plot
Rampage
ERRAT
Verify_3D
Harmony
Quality Control Check
NMR spectrum prediction:
FANDAS
MestReS
V-NMR
Flexibility from structure:
Backbone S2
Methyl S2
B-factor
Molecular dynamics:
Gromacs
Amber
Antechamber
Chemical shifts prediction:
From structure:
Shiftx2
Sparta+
Camshift
CH3shift- Methyl
ArShift- Aromatic
ShiftS
Proshift
PPM
CheShift-2- Cα
From sequence:
Shifty
Camcoil
Poulsen_rc_CS
Disordered proteins:
MAXOCC
Format conversion & validation:
CCPN
From NMR-STAR 3.1
Validate NMR-STAR 3.1
NMR sample preparation:
Protein disorder:
DisMeta
Protein solubility:
camLILA
ccSOL
Camfold
camGroEL
Zyggregator
Isotope labeling:
UPLABEL
Solid-state NMR:
sedNMR


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Default NMR Characterization of Conformational Fluctuations and Non-covalent Interactions of SUMO protein from Drosophila melanogaster (dSmt3).

NMR Characterization of Conformational Fluctuations and Non-covalent Interactions of SUMO protein from Drosophila melanogaster (dSmt3).

Related Articles NMR Characterization of Conformational Fluctuations and Non-covalent Interactions of SUMO protein from Drosophila melanogaster (dSmt3).

Proteins. 2019 Apr 08;:

Authors: Kaur A, Gourav, Kumar S, Jaiswal N, Vashisht A, Kumar D, Gahlay GK, Mithu VS

Abstract
Structural heterogeneity in the native-state ensemble of dSmt3, the only Small Ubiquitin like MOdifier (SUMO) in Drosophila melanogaster, was investigated and compared with its human homologue SUMO1. Temperature dependence of amide proton's chemical shift was studied to identify amino acids possessing alternative structural conformations in the native state. Effect of small concentration of denaturant (1M urea) on this population was also monitored to assess the ruggedness of near-native energy landscape. Owing to presence of many such amino acids, especially in the ?2 -loop-? region, the native state of dSmt3 seems more flexible in comparison to SUMO1. Information about backbone dynamics in ns-ps timescale was quantified from the measurement of 15 N-relaxation experiments. Furthermore, the non-covalent interaction of dSmt3 and SUMO1 with Daxx12 (Daxx729 DPEEIIVLSDSD740 ), a [V/I]-X-[V/I]-[V/I] based SUMO interaction motif (SIMs), was characterized using Bio-layer Interferometery and NMR spectroscopy. Daxx12 fits itself in the groove formed by ?2 -loop-? structural region in both dSmt3 and SUMO1, but the binding is stronger with the former. Flexibility of ?2 -loop-? region in dSmt3 is suspected to assist its interaction with Daxx12. Our results highlight the role of native-state flexibility in assisting non-covalent interactions of SUMO proteins especially in organisms where a single SUMO isoform has to tackle multiple substrates single handedly. This article is protected by copyright. All rights reserved.


PMID: 30958586 [PubMed - as supplied by publisher]



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