3dkn
Sec61 in the Canine ribosome-channel complex from the endoplasmic reticulum
1. Protein Identity and Related Structures Protein Identity & Related Structures
No usable UniProt protein identity is available for this entry.
The relationship tables retain this entry's assembly and composition data, but cross-PDB links for the same protein cannot be established reliably without a unified protein identity.
Assembly Composition of the Current Entry
| Assembly | Physical composition | Protein state | 蛋白 / DNA / RNA / 其他Polymer | Data consistency |
|---|---|---|---|---|
| 1 | Protein–RNA | Heteromer | 3 / 0 / 3 / 0 | Consistent with all polymers |
The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.
2. Structure Basics 2. Structure Basics
| Entry ID entry_id | 3dkn |
| Deposition date deposition_date | 2008-06-25 |
| Structure title title | Sec61 in the Canine ribosome-channel complex from the endoplasmic reticulum |
| Keywords keywords | Ribosome-channel complex, co-translational translocation, endoplasmic reticulum, protein transport-RNA COMPLEX; protein transport/RNA |
| Experimental Method method | ELECTRON MICROSCOPY |
3. Official assembly/model SAXS Official SAXS Profiles
This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.
3dkn__assembly_1__model_1
Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)
3dkn__assembly_1__model_1 | I(q)
3dkn__assembly_1__model_1 | P(r) · Pending
| Rg（Guinier） | 34.31 Å |
| Rg (electron density) | 32.65 Å |
| Total Rg | 33.28 Å |
| Atom count | 5554 |
| Residues | 596 |
| Excluded volume | 96354 ų |
| Maximum q | 0.500 Å⁻¹ |
4. Crystallography and Experiment 4. Crystallography & Experiment
5. Entities and Polymers Entities & Polymers (6)
6. Fold Classification (SCOP + CATH) 2 domains
SCOP 2.08 (2 domains)
| Domain ID domain_id | d3dknb1 |
| Class class | f — Membrane and cell surface proteins and peptides |
| Fold Fold fold | f.23 — Single transmembrane helix |
| Superfamily Superfamily superfamily | f.23.28 — Preprotein translocase SecE subunit |
| Family Family family | f.23.28.1 — Preprotein translocase SecE subunit |
| Domain ID domain_id | d3dknc1 |
| Class class | f — Membrane and cell surface proteins and peptides |
| Fold Fold fold | f.17 — Transmembrane helix hairpin |
| Superfamily Superfamily superfamily | f.17.6 — Sec-beta or SecG subunit of protein translocation channel |
| Family Family family | f.17.6.1 — Sec-beta subunit |