Macromolecule Content

Total Structure Weight: 96.59 kDa
Atom Count: 6841
Modelled Residue Count: 822
Deposited Residue Count: 846
Unique protein chains: 1

1SG9

Crystal structure of Thermotoga maritima protein HEMK, an N5-glutamine methyltransferase

DOI: 10.2210/pdb1SG9/pdb

Classification: UNKNOWN FUNCTION
Organism(s): Thermotoga maritima
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2004-02-23 Released: 2004-08-17
Deposition Author(s): Agarwal, R., Swaminathan, S., Burley, S.K., New York SGX Research Center for Structural Genomics (NYSGXRC)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.30 Å
R-Value Free: 0.261
R-Value Work: 0.235
R-Value Observed: 0.235

wwPDB Validation 3D Report Full Report

This is version 1.3 of the entry. See complete history.

Literature

A novel mode of dimerization via formation of a glutamate anhydride crosslink in a protein crystal structure.

Agarwal, R., Burley, S.K., Swaminathan, S.

(2008) Proteins 71: 1038-1041

PubMed: 18247349 Search on PubMed
DOI: 10.1002/prot.21962
Primary Citation of Related Structures:
1SG9

Macromolecules

Find similar proteins by:

(by identity cutoff) | Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
hemK protein	A, B, C	282	Thermotoga maritima	Mutation(s): 0 EC: 2.1.1.297
Find proteins for Q9WYV8 (Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099)) Explore Q9WYV8 Go to UniProtKB: Q9WYV8
Protein Feature View Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
SAM Query on SAM Download Ideal Coordinates CCD File SDF format, chain D [A] SDF format, chain F [B] SDF format, chain H [C] MOL2 format, chain D [A] MOL2 format, chain F [B] MOL2 format, chain H [C]	A, B, C	S-ADENOSYLMETHIONINE C₁₅ H₂₂ N₆ O₅ S MEFKEPWMEQBLKI-FCKMPRQPSA-N		Ligand Interaction
GLN Query on GLN Download Ideal Coordinates CCD File SDF format, chain E [A] SDF format, chain G [B] SDF format, chain I [C] MOL2 format, chain E [A] MOL2 format, chain G [B] MOL2 format, chain I [C]	A, B, C	GLUTAMINE C₅ H₁₀ N₂ O₃ ZDXPYRJPNDTMRX-VKHMYHEASA-N		Ligand Interaction

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.30 Å
R-Value Free: 0.261
R-Value Work: 0.235
R-Value Observed: 0.235
Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 81.025	α = 90
b = 188.332	β = 90
c = 207.684	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
MARMAD	data reduction
ADSC	data collection
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

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Entry History

Deposition Data

Deposited Date: 2004-02-23
Released Date: 2004-08-17

Deposition Author(s):

Agarwal, R.

Swaminathan, S.

Burley, S.K.

New York SGX Research Center for Structural Genomics (NYSGXRC)

Revision History (Full details and data files)

Version 1.0: 2004-08-17
Type: Initial release
Version 1.1: 2008-07-14
Changes: Version format compliance
Version 1.2: 2011-07-13
Changes: Version format compliance
Version 1.3: 2021-02-03
Changes: Database references, Derived calculations, Structure summary

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