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Crystal structure of SIAH1 at 1.58 a resolution.

Analyse Crystal structure of SIAH1 at 1.58 a resolution. in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB: 4CA1
Type: protein
Length: 379 residues
Chains: 2
Method: x-ray diffraction
Collection: MolNFT v1 / PDB
Contract: 0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner: 0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule: E3 ubiquitin-protein ligase SIAH1
EC: 6.3.2.-
UniProt: Q8IUQ4
Ligands: ZN, SO4, CL
Pockets: 3 · best druggability 0.38

Structure

x-ray diffraction · 2 distinct chains · 21% helix, 42% strand (DSSP).

Chain	Molecule	Type	Residues	Secondary structure	UniProt
A	E3 ubiquitin-protein ligase SIAH1 (EC 6.3.2.-)	protein	189	21% helix, 42% strand	Q8IUQ4
B	E3 ubiquitin-protein ligase SIAH1 (EC 6.3.2.-)	protein	190	21% helix, 42% strand	Q8IUQ4

Ligands and binding sites

ZN · Zinc ion · metal · 4 copies · chains A, B
SO4 · Sulfate ion · ion · 5 copies · chains A, B
CL · Chloride ion · ion · 3 copies · chains A, B
GOL · Glycerol · additive · 12 copies · chains A, B

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

Pockets

3 pockets found on a 1 Å grid, 0 with a druggability of 0.5 or more.

Pocket	Volume (Å³)	Druggability	Buriedness	Lining residues	Inside
1	76	0.38	0.78	15	empty
2	89	0.35	0.75	22	GOL
3	80	0.31	0.73	22	GOL

Interfaces

1 interface between chains.

A–B · 1043 Å² buried · 21 hydrogen bonds · protein-protein

Compared structures

4CA1 · Crystal structure of Siah1 at 1.58 A resolution. · the same entry in another collection · chain A against A, TM-score 1.00
Q8IUQ4 · AlphaFold monomer V2.0 prediction for E3 ubiquitin-protein ligase SIAH1 (Q8IUQ4) · a predicted model of the same protein · chain B against A, TM-score 0.88

Analyse

Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
Every structure of UniProt Q8IUQ4
Elsewhere: RCSB PDB 4CA1 · PDBe 4CA1 · UniProt Q8IUQ4

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