SAXSdb — 7rw5

▼

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

S-adenosylmethionine synthase isoform type-2

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	S-ADENOSYLMETHIONINE × 1 (3'R)-N-(cyclopropylmethyl)-1'-[(2-fluorophenyl)methyl]-4-methyl-5H,7H-spiro[pyrano[4,3-d]pyrimidine-8,3'-pyrrolidin]-2-amine × 1 water × 2	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 2	S-ADENOSYLMETHIONINE × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	METK2_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–396； UniProt 1–395 Author chain B； PDBConstruct 2–396； UniProt 1–395 Author chain C； PDBConstruct 2–396； UniProt 1–395 Author chain D； PDBConstruct 2–396； UniProt 1–395

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id	7rw5
Deposition date deposition_date	2021-08-19
Structure title title	Crystal structure of human methionine adenosyltransferase 2A (MAT2A) in complex with SAM and allosteric inhibitor Compound 1
Keywords keywords	METHIONINE ADENOSYLTRANSFERASE, SAM, ALLOSTERIC INHIBITOR, TRANSFERASE, TRANSFERASE-INHIBITOR COMPLEX; TRANSFERASE/INHIBITOR
Experimental Method method	X-RAY DIFFRACTION

▼

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.

7rw5__assembly_1__model_1

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

Download this curve (.dat)

7rw5__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7rw5__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	25.97 Å
Rg (electron density)	24.77 Å
Total Rg	25.80 Å
Atom count	5888
Residues	751
Excluded volume	104820 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7rw5__assembly_1__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`7rw5__assembly_2__model_1`	dimeric （2）	Success	4.1.3-1-20251215 (887e7ef)	View Download

▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	S-adenosylmethionine synthase isoform type-2
Molecular weight formula_weight	43807.7 kDa
EC 编号 ec_number	2.5.1.6
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	11985

SMNGQLNGFHEAFIEEGTFLFTSESVGEGHPDKICDQISDAVLDAHLQQDPDAKVACETVAKTGMILLAGEITSRAAVDYQKVVREAVKHIGYDDSSKGFDYKTCNVLVALEQQSPDIAQGVHLDRNEEDIGAGDQGLMFGYATDETEECMPLTIVLAHKLNAKLAELRRNGTLPWLRPDSKTQVTVQYMQDRGAVLPIRVHTIVISVQHDEEVCLDEMRDALKEKVIKAVVPAKYLDEDTIYHLQPSGRFVIGGPQGDAGLTGRKIIVDTYGGWGAHGGGAFSGKDYTKVDRSAAYAARWVAKSLVKGGLCRRVLVQVSYAIGVSHPLSISIFHYGTSQKSERELLEIVKKNFDLRPGVIVRDLDLKKPIYQRTAAYGHFGRDSFPWEVPKKLKY

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 non-polymer

Description description	S-ADENOSYLMETHIONINE
Molecular weight formula_weight	398.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	(3'R)-N-(cyclopropylmethyl)-1'-[(2-fluorophenyl)methyl]-4-methyl-5H,7H-spiro[pyrano[4,3-d]pyrimidine-8,3'-pyrrolidin]-2-amine
Molecular weight formula_weight	382.5 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	459

▼

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id	7rw5A01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	7rw5C01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily	10 —

▶

Unit-cell length a length_a	68.237 Å
Unit-cell length b length_b	103.990 Å
Unit-cell length c length_c	113.972 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	93.47 °
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	monoclinic

Resolution resolution	2.480 Å
Low-resolution limit resolution_low	37.920 Å
R factor r_factor	0.1779
R_work r_work	0.1752
R_free r_free	0.2292

Crystal structure of human methionine adenosyltransferase 2A (MAT2A) in complex with SAM and allosteric inhibitor Compound 1

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

S-adenosylmethionine synthase isoform type-2

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

7rw5__assembly_1__model_1

7rw5__assembly_1__model_1 | I(q)

7rw5__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 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (2)

Crystal structure of human methionine adenosyltransferase 2A (MAT2A) in complex with SAM and allosteric inhibitor Compound 1

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

S-adenosylmethionine synthase isoform type-2

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

7rw5__assembly_1__model_1

7rw5__assembly_1__model_1 | I(q)

7rw5__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 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

7. Citations (2)