1xma
Structure of a transcriptional regulator from Clostridium thermocellum Cth-833
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 homooligomer | Homooligomer | 2 / 0 / 0 / 0 | Consistent with protein count |
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 | 1xma |
| Deposition date deposition_date | 2004-10-01 |
| Structure title title | Structure of a transcriptional regulator from Clostridium thermocellum Cth-833 |
| Keywords keywords | ;Clostridium thermocellum, transcriptional regulator, Southeast Collaboratory for Structural Genomics, SECSG, Protein Structure Initiative, PSI, TRANSCRIPTION ;; TRANSCRIPTION |
| Experimental Method method | X-RAY DIFFRACTION |
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.
| Assembly | Model | Structure unit | Oligomeric description | Status | CRYSOL | Actions |
|---|---|---|---|---|---|---|
| 1 | 1 | 1xma__assembly_1__model_1 |
dimeric （2） | Excluded | — | — |
| Exclusion reason： The source record does not identify the atom or ion element unambiguously, so a reliable calculation is not possible. | ||||||
4. Crystallography and Experiment 4. Crystallography & Experiment
5. Entities and Polymers Entities & Polymers (4)
6. Fold Classification (SCOP + CATH) 5 domains
SCOP 2.08 (3 domains)
| Domain ID domain_id | d1xmaa_ |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.4 — DNA/RNA-binding 3-helical bundle |
| Superfamily Superfamily superfamily | a.4.5 — 'Winged helix' DNA-binding domain |
| Family Family family | a.4.5.61 — PadR-like |
| Domain ID domain_id | d1xmab1 |
| Class class | a — All alpha proteins |
| Fold Fold fold | a.4 — DNA/RNA-binding 3-helical bundle |
| Superfamily Superfamily superfamily | a.4.5 — 'Winged helix' DNA-binding domain |
| Family Family family | a.4.5.61 — PadR-like |
| Domain ID domain_id | d1xmab2 |
| Class class | l — Artifacts |
| Fold Fold fold | l.1 — Tags |
| Superfamily Superfamily superfamily | l.1.1 — Tags |
| Family Family family | l.1.1.1 — Tags |
CATH v4.4 (2 domains)
| Domain ID domain_id | 1xmaA00 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 10 — Arc Repressor Mutant, subunit A |
| Homologous superfamily homologous superfamily | 10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain |
| Domain ID domain_id | 1xmaB00 |
| Class class | 1 — Mainly Alpha |
| Architecture architecture | 10 — Orthogonal Bundle |
| Topology topology | 10 — Arc Repressor Mutant, subunit A |
| Homologous superfamily homologous superfamily | 10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain |