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X-ray structure of the complex of Bovine seminal ribonuclease swapping dimer with d(CpA)

X-ray diffraction
2.1Å resolution
PDB entry 1r5c coloured by chain, front view.
PDB entry 1r5c coloured by chain, side view.
PDB entry 1r5c coloured by chain, top view.
Source organism: Bos taurus
Assembly composition:
homo dimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: Seminal ribonuclease
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Multimeric state: homo dimer
Accessible surface area: 12877.42 Å2
Buried surface area: 5587.36 Å2
Dissociation area: 2,634.01 Å2
Dissociation energy (ΔGdiss): 25.46 kcal/mol
Dissociation entropy (TΔSdiss): 12.55 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-132818
Homo dimeric assembly 1 of PDB entry 1r5c coloured by chemically distinct molecules, front view.
Homo dimeric assembly 1 of PDB entry 1r5c coloured by chemically distinct molecules, side view.
Homo dimeric assembly 1 of PDB entry 1r5c coloured by chemically distinct molecules, top view.
    Assembly 1
Confidence : 98%
No. subunits : 2
Symmetry : C2
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3DComplex & QSbio predictionx
No. subunits : 2
Symmetry : C2
Evidence : Interface geometry is similar to that of 3f8g_1 (76% id)

Macromolecules

Seminal ribonuclease
Chains: A, B
Length: 124 amino acids
Theoretical weight: 13.63 KDa
Source organism: Bos taurus
UniProt:
  • Canonical: P00669 (Residues: 27-150; Coverage: 100%)
Gene name: SRN
Pfam: Pancreatic ribonuclease
InterPro:
CATH: Ribonuclease A-like domain
SCOP: Ribonuclease A-like
Seminal ribonuclease in PDB entry 1r5c, assembly 1, front view.
Seminal ribonuclease in PDB entry 1r5c, assembly 1, side view.
Seminal ribonuclease in PDB entry 1r5c, assembly 1, top view.
PDBe-KB: UniProt Coverage View: P00669  
1124102030405060708090100110120
 
50100
UniProt
P00669
Chains
Domains
Secondary structure
Flexibility predictions
Early folding residue predictions
Ligand binding sites
Interaction interfaces
Sequence conservation
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