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2xxj

Penta mutant of lactate dehydrogenase from Thermus thermophilus, ternary complex

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

L-LACTATE DEHYDROGENASE

THERMUS THERMOPHILUS

UniProt Q5SJA1

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 4 SULFATE ION × 2 OXAMIC ACID × 2 NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 2 water × 4 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer
2e37

1 assemblies

Homotetramer
2e37 2e37 2e37 2e37 2e37 2v6m 2v7p 2xxb 2xxj 3zzn 4a73

11 assemblies

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name LDH_THET8
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–310； UniProt 1–310 Author chain B； PDBConstruct 1–310； UniProt 1–310 Author chain C； PDBConstruct 1–310； UniProt 1–310 Author chain D； PDBConstruct 1–310； UniProt 1–310

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_id2xxj
Deposition date deposition_date2010-11-10
Structure title titlePenta mutant of lactate dehydrogenase from Thermus thermophilus, ternary complex
Keywords keywordsOXIDOREDUCTASE, HYPERTHERMOPHILE; OXIDOREDUCTASE
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.

2xxj__assembly_1__model_1

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

Download this curve (.dat)

2xxj__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.

2xxj__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）31.66 Å
Rg (electron density)30.58 Å
Total Rg31.31 Å
Atom count9285
Residues1239
Excluded volume165800 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2xxj__assembly_1__model_1 tetrameric （4） 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 (5)

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6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

Domain ID domain_idd2xxja1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.2 — NAD(P)-binding Rossmann-fold domains
Superfamily Superfamily superfamilyc.2.1 — NAD(P)-binding Rossmann-fold domains
Family Family familyc.2.1.0 — automated matches
Domain ID domain_idd2xxja2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.162 — LDH C-terminal domain-like
Superfamily Superfamily superfamilyd.162.1 — LDH C-terminal domain-like
Family Family familyd.162.1.0 — automated matches
Domain ID domain_idd2xxjb1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.2 — NAD(P)-binding Rossmann-fold domains
Superfamily Superfamily superfamilyc.2.1 — NAD(P)-binding Rossmann-fold domains
Family Family familyc.2.1.0 — automated matches
Domain ID domain_idd2xxjb2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.162 — LDH C-terminal domain-like
Superfamily Superfamily superfamilyd.162.1 — LDH C-terminal domain-like
Family Family familyd.162.1.0 — automated matches
Domain ID domain_idd2xxjc1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.2 — NAD(P)-binding Rossmann-fold domains
Superfamily Superfamily superfamilyc.2.1 — NAD(P)-binding Rossmann-fold domains
Family Family familyc.2.1.0 — automated matches
Domain ID domain_idd2xxjc2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.162 — LDH C-terminal domain-like
Superfamily Superfamily superfamilyd.162.1 — LDH C-terminal domain-like
Family Family familyd.162.1.0 — automated matches
Domain ID domain_idd2xxjd1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.2 — NAD(P)-binding Rossmann-fold domains
Superfamily Superfamily superfamilyc.2.1 — NAD(P)-binding Rossmann-fold domains
Family Family familyc.2.1.0 — automated matches
Domain ID domain_idd2xxjd2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.162 — LDH C-terminal domain-like
Superfamily Superfamily superfamilyd.162.1 — LDH C-terminal domain-like
Family Family familyd.162.1.0 — automated matches

CATH v4.4 (8 domains)

Domain ID domain_id2xxjA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily720 — NAD(P)-binding Rossmann-like Domain
Domain ID domain_id2xxjA02
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology110 — L-2-Hydroxyisocaproate Dehydrogenase; Chain A, domain 2
Homologous superfamily homologous superfamily10 — Lactate dehydrogenase/glycoside hydrolase, family 4, C-terminal
Domain ID domain_id2xxjB01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily720 — NAD(P)-binding Rossmann-like Domain
Domain ID domain_id2xxjB02
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology110 — L-2-Hydroxyisocaproate Dehydrogenase; Chain A, domain 2
Homologous superfamily homologous superfamily10 — Lactate dehydrogenase/glycoside hydrolase, family 4, C-terminal
Domain ID domain_id2xxjC01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily720 — NAD(P)-binding Rossmann-like Domain
Domain ID domain_id2xxjC02
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology110 — L-2-Hydroxyisocaproate Dehydrogenase; Chain A, domain 2
Homologous superfamily homologous superfamily10 — Lactate dehydrogenase/glycoside hydrolase, family 4, C-terminal
Domain ID domain_id2xxjD01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily720 — NAD(P)-binding Rossmann-like Domain
Domain ID domain_id2xxjD02
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology110 — L-2-Hydroxyisocaproate Dehydrogenase; Chain A, domain 2
Homologous superfamily homologous superfamily10 — Lactate dehydrogenase/glycoside hydrolase, family 4, C-terminal
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7. Citations (1)