1efl

HUMAN MALIC ENZYME IN A QUATERNARY COMPLEX WITH NAD, MG, AND TARTRONATE

Method: X-RAY DIFFRACTION

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1. Protein Identity and Related Structures Protein Identity & Related Structures

MALIC ENZYME

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 4	MAGNESIUM ION × 4 NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 8 TARTRONATE × 4 water × 4	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MAOM_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–584； UniProt 1–584 Author chain B； PDBConstruct 1–584； UniProt 1–584 Author chain C； PDBConstruct 1–584； UniProt 1–584 Author chain D； PDBConstruct 1–584； UniProt 1–584

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_id	1efl
Deposition date deposition_date	2000-02-09
Structure title title	HUMAN MALIC ENZYME IN A QUATERNARY COMPLEX WITH NAD, MG, AND TARTRONATE
Keywords keywords	closed form, malic enzyme, complex, tartronate, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method method	X-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.

1efl__assembly_1__model_1

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

Download this curve (.dat)

1efl__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1efl__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	44.04 Å
Rg (electron density)	43.95 Å
Total Rg	44.05 Å
Atom count	17856
Residues	2156
Excluded volume	319930 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1efl__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)

Entity 1 Entity 1 polymer

Description description	MALIC ENZYME
Molecular weight formula_weight	66224.9 kDa
EC 编号 ec_number	1.1.1.39
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D
Atom count atom_count	17947

MLSRLRVVSTTCTLACRHLHIKEKGKPLMLNPRTNKGMAFTLQERQMLGLQGLLPPKIETQDIQALRFHRNLKKMTSPLEKYIYIMGIQERNEKLFYRILQDDIESLMPIVYTPTVGLACSQYGHIFRRPKGLFISISDRGHVRSIVDNWPENHVKAVVVTDGERILGLGDLGVYGMGIPVGKLCLYTACAGIRPDRCLPVCIDVGTDNIALLKDPFYMGLYQKRDRTQQYDDLIDEFMKAITDRYGRNTLIQFEDFGNHNAFRFLRKYREKYCTFNDDIQGTAAVALAGLLAAQKVISKPISEHKILFLGAGEAALGIANLIVMSMVENGLSEQEAQKKIWMFDKYGLLVKGRKAKIDSYQEPFTHSAPESIPDTFEDAVNILKPSTIIGVAGAGRLFTPDVIRAMASINERPVIFALSNPTAQAECTAEEAYTLTEGRCLFASGSPFGPVKLTDGRVFTPGQGNNVYIFPGVALAVILCNTRHISDSVFLEAAKALTSQLTDEELAQGRLYPPLANIQEVSINIAIKVTEYLYANKMAFRYPEPEDKAKYVKERTWRSEYDSLLPDVYEWPESASSPPVITE

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 3 Entity 3 non-polymer

Description description	NICOTINAMIDE-ADENINE-DINUCLEOTIDE
Molecular weight formula_weight	663.4 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 4 Entity 4 non-polymer

Description description	TARTRONATE
Molecular weight formula_weight	118.0 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	91

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6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

Domain ID domain_id	d1efla1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
Superfamily Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
Family Family family	c.2.1.7 — Aminoacid dehydrogenase-like, C-terminal domain

Domain ID domain_id	d1efla2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.58 — Aminoacid dehydrogenase-like, N-terminal domain
Superfamily Superfamily superfamily	c.58.1 — Aminoacid dehydrogenase-like, N-terminal domain
Family Family family	c.58.1.3 — Malic enzyme N-domain

Domain ID domain_id	d1eflb1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
Superfamily Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
Family Family family	c.2.1.7 — Aminoacid dehydrogenase-like, C-terminal domain

Domain ID domain_id	d1eflb2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.58 — Aminoacid dehydrogenase-like, N-terminal domain
Superfamily Superfamily superfamily	c.58.1 — Aminoacid dehydrogenase-like, N-terminal domain
Family Family family	c.58.1.3 — Malic enzyme N-domain

Domain ID domain_id	d1eflc1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
Superfamily Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
Family Family family	c.2.1.7 — Aminoacid dehydrogenase-like, C-terminal domain

Domain ID domain_id	d1eflc2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.58 — Aminoacid dehydrogenase-like, N-terminal domain
Superfamily Superfamily superfamily	c.58.1 — Aminoacid dehydrogenase-like, N-terminal domain
Family Family family	c.58.1.3 — Malic enzyme N-domain

Domain ID domain_id	d1efld1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.2 — NAD(P)-binding Rossmann-fold domains
Superfamily Superfamily superfamily	c.2.1 — NAD(P)-binding Rossmann-fold domains
Family Family family	c.2.1.7 — Aminoacid dehydrogenase-like, C-terminal domain

Domain ID domain_id	d1efld2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.58 — Aminoacid dehydrogenase-like, N-terminal domain
Superfamily Superfamily superfamily	c.58.1 — Aminoacid dehydrogenase-like, N-terminal domain
Family Family family	c.58.1.3 — Malic enzyme N-domain

CATH v4.4 (8 domains)

Domain ID domain_id	1eflA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10380 — Malic enzyme, N-terminal domain

Domain ID domain_id	1eflA02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	720 — NAD(P)-binding Rossmann-like Domain

Domain ID domain_id	1eflB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10380 — Malic enzyme, N-terminal domain

Domain ID domain_id	1eflB02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	720 — NAD(P)-binding Rossmann-like Domain

Domain ID domain_id	1eflC01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10380 — Malic enzyme, N-terminal domain

Domain ID domain_id	1eflC02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	720 — NAD(P)-binding Rossmann-like Domain

Domain ID domain_id	1eflD01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	10380 — Malic enzyme, N-terminal domain

Domain ID domain_id	1eflD02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	720 — NAD(P)-binding Rossmann-like Domain

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Unit-cell length a length_a	228.800 Å
Unit-cell length b length_b	117.000 Å
Unit-cell length c length_c	114.300 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	109.20 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	16

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	2.600 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.2060
R_work r_work	0.2060
R_free r_free	0.2850

HUMAN MALIC ENZYME IN A QUATERNARY COMPLEX WITH NAD, MG, AND TARTRONATE

1. Protein Identity and Related Structures Protein Identity & Related Structures

MALIC ENZYME

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1efl__assembly_1__model_1

1efl__assembly_1__model_1 | I(q)

1efl__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

CATH v4.4 (8 domains)

7. Citations (1)

HUMAN MALIC ENZYME IN A QUATERNARY COMPLEX WITH NAD, MG, AND TARTRONATE

1. Protein Identity and Related Structures Protein Identity & Related Structures

MALIC ENZYME

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1efl__assembly_1__model_1

1efl__assembly_1__model_1 | I(q)

1efl__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

CATH v4.4 (8 domains)

7. Citations (1)