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3crx

CRE RECOMBINASE/DNA COMPLEX INTERMEDIATE I

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

CRE RECOMBINASE

Enterobacteria phage P1

UniProt P06956

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Homooligomer Protein 4 DNA 8 DNA 35-MER × 2 DNA 35-MER × 2 DNA 35-MER × 2 DNA 35-MER × 2 water × 10 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1drg 1f44 1kbu 1ma7 1nzb 1ouq 1pvp 1pvq 1pvr 1q3u 1q3v 1xns

25 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name RECR_BPP1
Isoform —
PDB entities 5
Chains and sequence ranges Author chain A； PDBConstruct 1–343； UniProt 1–343 Author chain B； PDBConstruct 1–343； UniProt 1–343

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id3crx
Deposition date deposition_date1998-06-19
Structure title titleCRE RECOMBINASE/DNA COMPLEX INTERMEDIATE I
Keywords keywordsCRE RECOMBINASE, HOLLIDAY JUNCTION, RECOMBINATION, RECOMBINASE-DNA COMPLEX, HYDROLASE, LIGASE-DNA COMPLEX; HYDROLASE, LIGASE/DNA
Experimental Method methodX-RAY DIFFRACTION
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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.

3crx__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

3crx__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

3crx__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）38.59 Å
Rg (electron density)37.71 Å
Total Rg38.07 Å
Atom count15864
Residues1568
Excluded volume263820 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3crx__assembly_1__model_1 dodecameric （12） Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (6)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd3crxa1
Class classa — All alpha proteins
Fold Fold folda.60 — SAM domain-like
Superfamily Superfamily superfamilya.60.9 — lambda integrase-like, N-terminal domain
Family Family familya.60.9.1 — lambda integrase-like, N-terminal domain
Domain ID domain_idd3crxa2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.163 — DNA breaking-rejoining enzymes
Superfamily Superfamily superfamilyd.163.1 — DNA breaking-rejoining enzymes
Family Family familyd.163.1.1 — Lambda integrase-like, catalytic core
Domain ID domain_idd3crxb1
Class classa — All alpha proteins
Fold Fold folda.60 — SAM domain-like
Superfamily Superfamily superfamilya.60.9 — lambda integrase-like, N-terminal domain
Family Family familya.60.9.1 — lambda integrase-like, N-terminal domain
Domain ID domain_idd3crxb2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.163 — DNA breaking-rejoining enzymes
Superfamily Superfamily superfamilyd.163.1 — DNA breaking-rejoining enzymes
Family Family familyd.163.1.1 — Lambda integrase-like, catalytic core

CATH v4.4 (4 domains)

Domain ID domain_id3crxA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology443 — hpI Integrase; Chain A
Homologous superfamily homologous superfamily10 — Intergrase catalytic core
Domain ID domain_id3crxA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily130 — Tyrosine recombinase, N-terminal domain
Domain ID domain_id3crxB01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology443 — hpI Integrase; Chain A
Homologous superfamily homologous superfamily10 — Intergrase catalytic core
Domain ID domain_id3crxB02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily130 — Tyrosine recombinase, N-terminal domain
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7. Citations (2)