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6h8b

Molybdenum storage protein prepared under in vivo-like conditions and incubated with ATP and molybdate at 303 K

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

Molybdenum storage protein subunit beta

OrganismNot specified

UniProt P84253

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 6 Molybdenum storage protein subunit alpha × 3 （P84308） molybdate cluster × 3 2,2,4-tris(oxidanyl)-1,3-dioxa-2$l^{4},4$l^{3}-dimolybdacyclobutane × 3 ;oxidanyl-[[2,2,4,4,4-pentakis($l^{1}-oxidanyl)-1-(oxidanylmolybdenio)-1$l^{3},3-dioxa-2$l^{5},4$l^{5}-dimolybdacyclobut-2-yl]oxy]molybdenum ; × 3 Mo5 Cluster × 3 ;tetrakis($l^{1}-oxidanyl)-[[2,2,2,4,4,4,4,6,6,6,8-undecakis($l^{1}-oxidanyl)-8-(oxidanylmolybdeniooxy)-6-[tris($l^{1}-oxidanyl)molybdeniooxy]-1,3,5,7-tetraoxa-2$l^{6},4$l^{6},6$l^{6},8$l^{4}-tetramolybdacyclooct-2-yl]oxy]molybdenum ; × 3 ADENOSINE-5'-TRIPHOSPHATE × 3 MAGNESIUM ION × 3 Molybdate cluster × 3 ;[[[bis(oxidanylmolybdenio)-$l^{3}-oxidanyl]-$l^{1}-oxidanyl-oxidanylidene-molybdenio]-(oxidanylmolybdenio)-$l^{3}-oxidanyl]-tetrakis($l^{1}-oxidanyl)molybdenum ; × 3 MOLYBDATE ION × 3 water × 6 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
2ogx 4f6t 4ndo 4ndp 4ndq 4ndr 5o5w 6gu5 6gu5 6guj 6gwb 6gwb

30 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name MOSB_AZOVD
Isoform —
PDB entities 1
Chains and sequence ranges Author chain B； PDBConstruct 1–269； UniProt 2–270

Molybdenum storage protein subunit alpha

OrganismNot specified

UniProt P84308

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 6 Molybdenum storage protein subunit beta × 3 （P84253） molybdate cluster × 3 2,2,4-tris(oxidanyl)-1,3-dioxa-2$l^{4},4$l^{3}-dimolybdacyclobutane × 3 ;oxidanyl-[[2,2,4,4,4-pentakis($l^{1}-oxidanyl)-1-(oxidanylmolybdenio)-1$l^{3},3-dioxa-2$l^{5},4$l^{5}-dimolybdacyclobut-2-yl]oxy]molybdenum ; × 3 Mo5 Cluster × 3 ;tetrakis($l^{1}-oxidanyl)-[[2,2,2,4,4,4,4,6,6,6,8-undecakis($l^{1}-oxidanyl)-8-(oxidanylmolybdeniooxy)-6-[tris($l^{1}-oxidanyl)molybdeniooxy]-1,3,5,7-tetraoxa-2$l^{6},4$l^{6},6$l^{6},8$l^{4}-tetramolybdacyclooct-2-yl]oxy]molybdenum ; × 3 ADENOSINE-5'-TRIPHOSPHATE × 3 MAGNESIUM ION × 3 Molybdate cluster × 3 ;[[[bis(oxidanylmolybdenio)-$l^{3}-oxidanyl]-$l^{1}-oxidanyl-oxidanylidene-molybdenio]-(oxidanylmolybdenio)-$l^{3}-oxidanyl]-tetrakis($l^{1}-oxidanyl)molybdenum ; × 3 MOLYBDATE ION × 3 water × 6 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
2ogx 4f6t 4ndo 4ndp 4ndq 4ndr 5o5w 6gu5 6gu5 6guj 6gwb 6gwb

30 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name MOSA_AZOVD
Isoform —
PDB entities 2
Chains and sequence ranges Author chain A； PDBConstruct 1–275； UniProt 2–276

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_id6h8b
Deposition date deposition_date2018-08-02
Structure title titleMolybdenum storage protein prepared under in vivo-like conditions and incubated with ATP and molybdate at 303 K
Keywords keywordsPolyoxometalate clusters, molybdenum storage protein, bionanolab, METAL BINDING PROTEIN; METAL BINDING 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.

6h8b__assembly_1__model_1

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

Download this curve (.dat)

6h8b__assembly_1__model_1 | I(q)

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

6h8b__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）31.45 Å
Rg (electron density)31.92 Å
Total Rg31.04 Å
Atom count12042
Residues1539
Excluded volume214780 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 6h8b__assembly_1__model_1 hexameric （6） 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 (13)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd6h8ba_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.73 — Carbamate kinase-like
Superfamily Superfamily superfamilyc.73.1 — Carbamate kinase-like
Family Family familyc.73.1.0 — automated matches
Domain ID domain_idd6h8bb_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.73 — Carbamate kinase-like
Superfamily Superfamily superfamilyc.73.1 — Carbamate kinase-like
Family Family familyc.73.1.0 — automated matches

CATH v4.4 (2 domains)

Domain ID domain_id6h8bA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology1160 — Carbamate kinase
Homologous superfamily homologous superfamily10 — Acetylglutamate kinase-like
Domain ID domain_id6h8bB00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology1160 — Carbamate kinase
Homologous superfamily homologous superfamily10 — Acetylglutamate kinase-like
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7. Citations (1)