SAXSdb — 8gju

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

Methylmalonic aciduria type A protein, mitochondrial

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	Methylmalonyl-CoA mutase, mitochondrial × 2 （A0A2S1PH20） GUANOSINE-5'-DIPHOSPHATE × 2 MAGNESIUM ION × 2 COENZYME A × 2 water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 4	Methylmalonyl-CoA mutase, mitochondrial × 2 （A0A2S1PH20） GUANOSINE-5'-DIPHOSPHATE × 2 MAGNESIUM ION × 2 COENZYME A × 2 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MMAA_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 3–349； UniProt 72–418 Author chain B； PDBConstruct 3–349； UniProt 72–418 Author chain D； PDBConstruct 3–349； UniProt 72–418 Author chain F； PDBConstruct 3–349； UniProt 72–418

Methylmalonyl-CoA mutase, mitochondrial

Homo sapiens

UniProt A0A2S1PH20

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	Methylmalonic aciduria type A protein, mitochondrial × 2 （Q8IVH4） GUANOSINE-5'-DIPHOSPHATE × 2 MAGNESIUM ION × 2 COENZYME A × 2 water × 2	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 4	Methylmalonic aciduria type A protein, mitochondrial × 2 （Q8IVH4） GUANOSINE-5'-DIPHOSPHATE × 2 MAGNESIUM ION × 2 COENZYME A × 2 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	A0A2S1PH20_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain H； PDBConstruct 2–740； UniProt 12–750 Author chain J； PDBConstruct 2–740； UniProt 12–750 Author chain K； PDBConstruct 2–740； UniProt 12–750 Author chain L； PDBConstruct 2–740； UniProt 12–750

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	8gju
Deposition date deposition_date	2023-03-16
Structure title title	Crystal structure of human methylmalonyl-CoA mutase (MMUT) in complex with methylmalonic acidemia type A protein (MMAA), coenzyme A, and GDP
Keywords keywords	;protein-protein complex, isomerase, GTPase, G-protein, cobalamin, vitamin B12, transport, organometallic cofactor, Isomerase-Hydrolase complex ;; Isomerase/Hydrolase
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.

8gju__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

8gju__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8gju__assembly_2__model_1 | P(r) · Pending

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

Rg（Guinier）	41.80 Å
Rg (electron density)	41.40 Å
Total Rg	41.70 Å
Atom count	15253
Residues	2022
Excluded volume	272010 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8gju__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`8gju__assembly_2__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 (6)

Entity 1 Entity 1 polymer

Description description	Methylmalonic aciduria type A protein, mitochondrial
Molecular weight formula_weight	38718.9 kDa
EC 编号 ec_number	3.6.-.-
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D,F,A,B
Atom count atom_count	30530

SMKDHTEGLSDKEQRFVDKLYTGLIQGQRACLAEAITLVESTHSRKKELAQVLLQKVLLYHREQEQSNKGKPLAFRVGLSGPPGAGKSTFIEYFGKMLTERGHKLSVLAVDPSSCTSGGSLLGDKTRMTELSRDMNAYIRPSPTRGTLGGVTRTTNEAILLCEGAGYDIILIETVGVGQSEFAVADMVDMFVLLLPPAGGDELQGIKRGIIEMADLVAVTKSDGDLIVPARRIQAEYVSALKLLRKRSQVWKPKVIRISARSGEGISEMWDKMKDFQDLMLASGELTAKRRKQQKVWMWNLIQESVLEHFRTHPTVREQIPLLEQKVLIGALSPGLAADFLLKAFKSRD

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 BL21(DE3)

Entity 2 Entity 2 polymer

Description description	Methylmalonyl-CoA mutase, mitochondrial
Molecular weight formula_weight	83010.0 kDa
EC 编号 ec_number	5.4.99.2
Source method src_method	man
Copy count entity_count	4

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	J,K,L,H

MSPHYLRQVKESSGSRLIQQRLLHQQQPLHPEWAALAKKQLKGKNPEDLIWHTPEGISIKPLYSKRDTMDLPEELPGVKPFTRGPYPTMYTFRPWTIRQYAGFSTVEESNKFYKDNIKAGQQGLSVAFDLATHRGYDSDNPRVRGDVGMAGVAIDTVEDTKILFDGIPLEKMSVSMTMNGAVIPVLANFIVTGEEQGVPKEKLTGTIQNDILKEFMVRNTYIFPPEPSMKIIADIFEYTAKHMPKFNSISISGYHMQEAGADAILELAYTLADGLEYSRTGLQAGLTIDEFAPRLSFFWGIGMNFYMEIAKMRAGRRLWAHLIEKMFQPKNSKSLLLRAHCQTSGWSLTEQDPYNNIVRTAIEAMAAVFGGTQSLHTNSFDEALGLPTVKSARIARNTQIIIQEESGIPKVADPWGGSYMMECLTNDVYDAALKLINEIEEMGGMAKAVAEGIPKLRIEECAARRQARIDSGSEVIVGVNKYQLEKEDTVEVLAIDNTSVRNRQIEKLKKIKSSRDQALAERCLAALTECAASGDGNILALAVDASRARCTVGEITDALKKVFGEHKANDRMVSGAYRQEFGESKEITSAIKRVHKFMEREGRRPRLLVAKMGQDGHDRGAKVIATGFADLGFDVDIGPLFQTPREVAQQAVDADVHAVGVSTLAAGHKTLVPELIKELNSLGRPDILVMCGGVIPPQDYEFLFEVGVSNVFGPGTRIPKAAVQVLDDIEKCLEKKQQSVAENLYFQS

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 BL21(DE3)

Entity 3 Entity 3 non-polymer

Description description	GUANOSINE-5'-DIPHOSPHATE
Molecular weight formula_weight	443.2 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 4 Entity 4 non-polymer

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

Entity 5 Entity 5 non-polymer

Description description	COENZYME A
Molecular weight formula_weight	767.5 kDa
Source method src_method	nat
Copy count entity_count	4

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	13

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Unit-cell length a length_a	95.806 Å
Unit-cell length b length_b	221.872 Å
Unit-cell length c length_c	121.824 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	105.53 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	2.790 Å
Low-resolution limit resolution_low	80.620 Å
R factor r_factor	0.2315
R_work r_work	0.2291
R_free r_free	0.2761

Crystal structure of human methylmalonyl-CoA mutase (MMUT) in complex with methylmalonic acidemia type A protein (MMAA), coenzyme A, and GDP

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

Methylmalonic aciduria type A protein, mitochondrial

State in the Current Structure

Other States of the Same Protein in the Database

Methylmalonyl-CoA mutase, mitochondrial

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

8gju__assembly_2__model_1

8gju__assembly_2__model_1 | I(q)

8gju__assembly_2__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

7. Citations (1)

Crystal structure of human methylmalonyl-CoA mutase (MMUT) in complex with methylmalonic acidemia type A protein (MMAA), coenzyme A, and GDP

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

Methylmalonic aciduria type A protein, mitochondrial

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Methylmalonyl-CoA mutase, mitochondrial

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

8gju__assembly_2__model_1

8gju__assembly_2__model_1 | I(q)

8gju__assembly_2__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 water

7. Citations (1)