› 2p44

X-ray diffraction
1.8Å resolution

Complex of a camelid single-domain vhh antibody fragment with RNASE A at 1.8A resolution: SE5A-mono-1 crystal form with five se-met sites (M34, M51, F68M, M83, L86M) in vhh scaffold

Released:
DOI: 10.2210/pdb2p44/pdb
PDB entry 2p44 coloured by chain, front view.
PDB entry 2p44 coloured by chain, side view.
PDB entry 2p44 coloured by chain, top view.
Source organisms:
Primary publication:
Toward chaperone-assisted crystallography: protein engineering enhancement of crystal packing and X-ray phasing capabilities of a camelid single-domain antibody (VHH) scaffold.
Tereshko V, Uysal S, Koide A, Margalef K, Koide S, Kossiakoff AA
Protein Sci 17 1175-87 (2008)
PMID: 18445622

Function and Biology Details

Reaction catalysed: 
(1a) an (RNA) containing cytidine = an (RNA)-3'-cytidine-2',3'-cyclophosphate + a 5'-hydroxy-ribonucleotide-3'-(RNA)
Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-211475 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Ribonuclease pancreatic Chain: A
Molecule details ›
Chain: A
Length: 124 amino acids
Theoretical weight: 13.71 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P61823 (Residues: 27-150; Coverage: 100%)
Gene names: RNASE1, RNS1
Sequence domains: Pancreatic ribonuclease
Structure domains: Ribonuclease A-like domain
ANTIBODY CAB-RN05 Chain: B
Molecule details ›
Chain: B
Length: 123 amino acids
Theoretical weight: 13.34 KDa
Source organism: Camelus dromedarius
Expression system: Escherichia coli
Structure domains: Immunoglobulins

Ligands and Environments

No bound ligands
1 modified residue:
Ligand MSE 5 x MSE

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: P21
Unit cell:
a: 40.783Å b: 54.765Å c: 49.064Å
α: 90° β: 109.57° γ: 90°
R-values:
R R work R free
0.195 0.193 0.238
Expression system: Escherichia coli

Quick links

Citations

14 review citations

The significance of G protein-coupled receptor crystallography for drug discovery.
Salon et al. (2011)
13 more

1 mention without citation

An integrated linkage, chromosome, and genome map for the yellow fever mosquito Aedes aegypti.
Timoshevskiy et al. (2013)