SAXSdb — 3m55

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

Histone-lysine N-methyltransferase SETD7

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	TAF10 peptide × 1 S-ADENOSYL-L-HOMOCYSTEINE × 1 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	SETD7_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 5–261； UniProt 110–366

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	3m55
Deposition date deposition_date	2010-03-12
Structure title title	SET7/9 Y305F in complex with TAF10-K189me1 peptide and AdoHcy
Keywords keywords	;TERNARY COMPLEX, SET DOMAIN, METHYLTRANSFERASE, S-ADENOSYL-L-HOMOCYSTEINE, TAF10 PEPTIDE, N-MONOMETHYLLYSINE, Chromatin regulator, Chromosomal protein, Nucleus, S-adenosyl-L-methionine, Transcription, Transcription regulation, Transferase ;; TRANSFERASE
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.

3m55__assembly_1__model_1

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

Download this curve (.dat)

3m55__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3m55__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	19.95 Å
Rg (electron density)	18.97 Å
Total Rg	19.85 Å
Atom count	1961
Residues	250
Excluded volume	34513 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3m55__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	Histone-lysine N-methyltransferase SETD7
Molecular weight formula_weight	29027.3 kDa
EC 编号 ec_number	2.1.1.43
Mutation mutation	Y305F
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	2362

GAMGYKDNIRHGVCWIYYPDGGSLVGEVNEDGEMTGEKIAYVYPDERTALYGKFIDGEMIEGKLATLMSTEEGRPHFELMPGNSVYHFDKSTSSCISTNALLPDPYESERVYVAESLISSAGEGLFSKVAVGPNTVMSFYNGVRITHQEVDSRDWALNGNTLSLDEETVIDVPEPYNHVSKYCASLGHKANHSFTPNCIFDMFVHPRFGPIKCIRTLRAVEADEELTVAYGYDHSPPGKSGPEAPEWYQVELKAFQATQQK

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 polymer

Description description	TAF10 peptide
Molecular weight formula_weight	1268.5 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

XSKSKDRKYTL

Entity 3 Entity 3 non-polymer

Description description	S-ADENOSYL-L-HOMOCYSTEINE
Molecular weight formula_weight	384.4 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	324

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6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id	3m55A01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	110 — Histone H3 K4-specific methyltransferase SET7/9 N-terminal domain
Homologous superfamily homologous superfamily	10 — Histone H3 K4-specific methyltransferase SET7/9 N-terminal domain

Domain ID domain_id	3m55A02
Class class	2 — Mainly Beta
Architecture architecture	170 — Beta Complex
Topology topology	270 — Beta-clip-like
Homologous superfamily homologous superfamily	10 — SET domain

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Unit-cell length a length_a	83.524 Å
Unit-cell length b length_b	83.524 Å
Unit-cell length c length_c	95.673 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	1.550 Å
Low-resolution limit resolution_low	29.190 Å
R factor r_factor	0.1920
R_work r_work	0.1910
R_free r_free	0.2170

SET7/9 Y305F in complex with TAF10-K189me1 peptide and AdoHcy

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

Histone-lysine N-methyltransferase SETD7

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

3m55__assembly_1__model_1

3m55__assembly_1__model_1 | I(q)

3m55__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

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 (1)

SET7/9 Y305F in complex with TAF10-K189me1 peptide and AdoHcy

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

Histone-lysine N-methyltransferase SETD7

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

3m55__assembly_1__model_1

3m55__assembly_1__model_1 | I(q)

3m55__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

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 (1)