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Crystallographic structures of ribonuclease S variants with nonpolar substitution at position 13: packing and cavities

Analyse Crystallographic structures of ribonuclease S variants with nonpolar… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB: 1RBF
Type: protein
Length: 119 residues
Chains: 2
Method: x-ray diffraction
Collection: MolNFT v1 / PDB
Contract: 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner: 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule: Ribonuclease S (S-peptide); Ribonuclease S (S-protein)
EC: 3.1.27.5
UniProt: P61823
Ligands: NH2, SO4

Structure

x-ray diffraction · 2 distinct chains · 22% helix, 37% strand (DSSP).

Chain	Molecule	Type	Residues	Secondary structure	UniProt
S	Ribonuclease S (S-peptide)	protein	15	60% helix, 7% strand	P61823
A	Ribonuclease S (S-protein) (EC 3.1.27.5)	protein	104	16% helix, 41% strand	P61823

Ligands and binding sites

NH2 · Amino group · ion · chains S
SO4 · Sulfate ion · ion · chains S, A

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Interfaces

1 interface between chains.

S–A · 697 Å² buried · 14 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 4 disulfide (disulfide).

Compared structures

1RBF · Crystallographic structures of ribonuclease S variants with nonpolar substitution at… · the same entry in another collection · chain S against S, TM-score 1.00

Analyse

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Every structure of UniProt P61823
Elsewhere: RCSB PDB 1RBF · PDBe 1RBF · UniProt P61823

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