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1lb1

Crystal Structure of the Dbl and Pleckstrin homology domains of Dbs in complex with RhoA

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

Guanine nucleotide exchange factor DBS

Mus musculus

UniProt Q64096

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Transforming protein RhoA × 1 （P61586） Consistent with protein count
2 Protein heterocomplex Heteromer Protein 2 Transforming protein RhoA × 1 （P61586） Consistent with protein count
3 Protein heterocomplex Heteromer Protein 2 Transforming protein RhoA × 1 （P61586） Consistent with protein count
4 Protein heterocomplex Heteromer Protein 2 Transforming protein RhoA × 1 （P61586） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1kz7 1kz7 1kzg 1kzg 1lb1 1lb1 1lb1 1lb1

8 assemblies

View Construct and Data Evidence
UniProt name MCF2L_MOUSE
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 2–346； UniProt 623–967 Author chain C； PDBConstruct 2–346； UniProt 623–967 Author chain E； PDBConstruct 2–346； UniProt 623–967 Author chain G； PDBConstruct 2–346； UniProt 623–967

Transforming protein RhoA

Homo sapiens

UniProt P61586

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Guanine nucleotide exchange factor DBS × 1 （Q64096） Consistent with protein count
2 Protein heterocomplex Heteromer Protein 2 Guanine nucleotide exchange factor DBS × 1 （Q64096） Consistent with protein count
3 Protein heterocomplex Heteromer Protein 2 Guanine nucleotide exchange factor DBS × 1 （Q64096） Consistent with protein count
4 Protein heterocomplex Heteromer Protein 2 Guanine nucleotide exchange factor DBS × 1 （Q64096） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1a2b 1dpf 1ftn 1kmq 5a0f 5c4m 5ez6 6kx2 6kx3 6v6m 6v6u 6v6v

34 assemblies; showing the first 12

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1cc0 1cc0 1cxz 1lb1 1lb1 1lb1 1lb1 1ow3 1s1c 1tx4 1x86 1x86

132 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name RHOA_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 3–192； UniProt 1–190 Author chain D； PDBConstruct 3–192； UniProt 1–190 Author chain F； PDBConstruct 3–192； UniProt 1–190 Author chain H； PDBConstruct 3–192； UniProt 1–190

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_id1lb1
Deposition date deposition_date2002-04-01
Structure title titleCrystal Structure of the Dbl and Pleckstrin homology domains of Dbs in complex with RhoA
Keywords keywordsGUANINE NUCLEOTIDE EXCHANGE FACTOR, SMALL G-PROTEIN, RHOA, DBS, DH domain, PH domain, SIGNALING PROTEIN; SIGNALING PROTEIN
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.

1lb1__assembly_1__model_1

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

Download this curve (.dat)

1lb1__assembly_1__model_1 | I(q)

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

1lb1__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）25.76 Å
Rg (electron density)24.55 Å
Total Rg25.44 Å
Atom count4059
Residues502
Excluded volume72532 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1lb1__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1lb1__assembly_2__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 1lb1__assembly_3__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
4 1 1lb1__assembly_4__model_1 dimeric （2） 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 (2)

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6. Fold Classification (SCOP + CATH) 24 domains

SCOP 2.08 (12 domains)

Domain ID domain_idd1lb1a1
Class classa — All alpha proteins
Fold Fold folda.87 — DBL homology domain (DH-domain)
Superfamily Superfamily superfamilya.87.1 — DBL homology domain (DH-domain)
Family Family familya.87.1.1 — DBL homology domain (DH-domain)
Domain ID domain_idd1lb1a2
Class classb — All beta proteins
Fold Fold foldb.55 — PH domain-like barrel
Superfamily Superfamily superfamilyb.55.1 — PH domain-like
Family Family familyb.55.1.1 — Pleckstrin-homology domain (PH domain)
Domain ID domain_idd1lb1b_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.8 — G proteins
Domain ID domain_idd1lb1c1
Class classa — All alpha proteins
Fold Fold folda.87 — DBL homology domain (DH-domain)
Superfamily Superfamily superfamilya.87.1 — DBL homology domain (DH-domain)
Family Family familya.87.1.1 — DBL homology domain (DH-domain)
Domain ID domain_idd1lb1c2
Class classb — All beta proteins
Fold Fold foldb.55 — PH domain-like barrel
Superfamily Superfamily superfamilyb.55.1 — PH domain-like
Family Family familyb.55.1.1 — Pleckstrin-homology domain (PH domain)
Domain ID domain_idd1lb1d_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.8 — G proteins
Domain ID domain_idd1lb1e1
Class classa — All alpha proteins
Fold Fold folda.87 — DBL homology domain (DH-domain)
Superfamily Superfamily superfamilya.87.1 — DBL homology domain (DH-domain)
Family Family familya.87.1.1 — DBL homology domain (DH-domain)
Domain ID domain_idd1lb1e2
Class classb — All beta proteins
Fold Fold foldb.55 — PH domain-like barrel
Superfamily Superfamily superfamilyb.55.1 — PH domain-like
Family Family familyb.55.1.1 — Pleckstrin-homology domain (PH domain)
Domain ID domain_idd1lb1f_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.8 — G proteins
Domain ID domain_idd1lb1g1
Class classa — All alpha proteins
Fold Fold folda.87 — DBL homology domain (DH-domain)
Superfamily Superfamily superfamilya.87.1 — DBL homology domain (DH-domain)
Family Family familya.87.1.1 — DBL homology domain (DH-domain)
Domain ID domain_idd1lb1g2
Class classb — All beta proteins
Fold Fold foldb.55 — PH domain-like barrel
Superfamily Superfamily superfamilyb.55.1 — PH domain-like
Family Family familyb.55.1.1 — Pleckstrin-homology domain (PH domain)
Domain ID domain_idd1lb1h_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.8 — G proteins

CATH v4.4 (12 domains)

Domain ID domain_id1lb1A01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology900 — Dbl Homology Domain; Chain A
Homologous superfamily homologous superfamily10 — Dbl homology (DH) domain
Domain ID domain_id1lb1A02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
Domain ID domain_id1lb1B00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id1lb1C01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology900 — Dbl Homology Domain; Chain A
Homologous superfamily homologous superfamily10 — Dbl homology (DH) domain
Domain ID domain_id1lb1C02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
Domain ID domain_id1lb1D00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id1lb1E01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology900 — Dbl Homology Domain; Chain A
Homologous superfamily homologous superfamily10 — Dbl homology (DH) domain
Domain ID domain_id1lb1E02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
Domain ID domain_id1lb1F00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id1lb1G01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology900 — Dbl Homology Domain; Chain A
Homologous superfamily homologous superfamily10 — Dbl homology (DH) domain
Domain ID domain_id1lb1G02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
Domain ID domain_id1lb1H00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
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7. Citations (1)