SAXSdb — 8bn8

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

N6-adenosine-methyltransferase catalytic subunit

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	N6-adenosine-methyltransferase non-catalytic subunit × 1 （Q9HCE5） 2-[[4-(6-bromanyl-2~{H}-indazol-4-yl)-1,2,3-triazol-1-yl]methyl]-6-[(4,4-dimethylpiperidin-1-yl)methyl]imidazo[1,2-a]pyridine × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MTA70_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain AAA； PDBConstruct 1–218； UniProt 363–580

N6-adenosine-methyltransferase non-catalytic subunit

Homo sapiens

UniProt Q9HCE5

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	N6-adenosine-methyltransferase catalytic subunit × 1 （Q86U44） 2-[[4-(6-bromanyl-2~{H}-indazol-4-yl)-1,2,3-triazol-1-yl]methyl]-6-[(4,4-dimethylpiperidin-1-yl)methyl]imidazo[1,2-a]pyridine × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MET14_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain BBB； PDBConstruct 3–291； UniProt 107–395

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	8bn8
Deposition date deposition_date	2022-11-13
Structure title title	METTL3-METTL14 heterodimer bound to the SAM competitive small molecule inhibitor STM3006
Keywords keywords	METHYLTRANSFERASE, SAM, INHIBITOR, M6A, RNA BINDING PROTEIN; RNA BINDING PROTEIN
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.

8bn8__assembly_1__model_1

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

Download this curve (.dat)

8bn8__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8bn8__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.93 Å
Rg (electron density)	24.20 Å
Total Rg	24.91 Å
Atom count	3642
Residues	441
Excluded volume	64845 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8bn8__assembly_1__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 (4)

Entity 1 Entity 1 polymer

Description description	N6-adenosine-methyltransferase catalytic subunit
Molecular weight formula_weight	25057.8 kDa
EC 编号 ec_number	2.1.1.348
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	AAA
Atom count atom_count	3735

SSADRLFPPQWICCDIRYLDVSILGKFAVVMADPPWDIHMELPYGTLTDDEMRRLNIPVLQDDGFLFLWVTGRAMELGRECLNLWGYERVDEIIWVKTNQLQRIIRTGRTGHWLNHGKEHCLVGVKGNPQGFNQGLDCDVIVAEVRSTSHKPDEIYGMIERLSPGTRKIELFGRPHNVQPNWITLGNQLDGIHLLDPDVVARFKQRYPDGIISKPKNL

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Spodoptera frugiperda

Entity 2 Entity 2 polymer

Description description	N6-adenosine-methyltransferase non-catalytic subunit
Molecular weight formula_weight	33634.2 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BBB

GSLKGTQSLNPHNDYCQHFVDTGHRPQNFIRDVGLADRFEEYPKLRELIRLKDELIAKSNTPPMYLQADIEAFDIRELTPKFDVILLEPPLEEYYRETGITANEKCWTWDDIMKLEIDEIAAPRSFIFLWCGSGEGLDLGRVCLRKWGYRRCEDICWIKTNKNNPGKTKTLDPKAVFQRTKEHCLMGIKGTVKRSTDGDFIHANVDIDLIITEEPEIGNIEKPVEIFHIIEHFCLGRRRLHLFGRDSTIRPGWLTVGPTLTNSNYNAETYASYFSAPNSYLTGCTEEIERL

Source Source

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Spodoptera frugiperda

Entity 3 Entity 3 non-polymer

Description description	2-[[4-(6-bromanyl-2~{H}-indazol-4-yl)-1,2,3-triazol-1-yl]methyl]-6-[(4,4-dimethylpiperidin-1-yl)methyl]imidazo[1,2-a]pyridine
Molecular weight formula_weight	519.4 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	83

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Unit-cell length a length_a	63.970 Å
Unit-cell length b length_b	63.970 Å
Unit-cell length c length_c	226.480 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	6

Space group space_group	P 32 2 1
Space-group number int_tables_number	154
Crystal system crystal_system	—

Resolution resolution	2.213 Å
Low-resolution limit resolution_low	75.493 Å
R factor r_factor	—
R_work r_work	0.1842
R_free r_free	0.2442

METTL3-METTL14 heterodimer bound to the SAM competitive small molecule inhibitor STM3006

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

N6-adenosine-methyltransferase catalytic subunit

State in the Current Structure

Other States of the Same Protein in the Database

N6-adenosine-methyltransferase non-catalytic subunit

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

8bn8__assembly_1__model_1

8bn8__assembly_1__model_1 | I(q)

8bn8__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 (4)

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 water

7. Citations (1)

METTL3-METTL14 heterodimer bound to the SAM competitive small molecule inhibitor STM3006

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

N6-adenosine-methyltransferase catalytic subunit

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

N6-adenosine-methyltransferase non-catalytic subunit

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

8bn8__assembly_1__model_1

8bn8__assembly_1__model_1 | I(q)

8bn8__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 (4)

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 water

7. Citations (1)