SAXSdb — 3f9t

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

L-tyrosine decarboxylase MfnA

Methanocaldococcus jannaschii

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	PYRIDOXAL-5'-PHOSPHATE × 2 (4S)-2-METHYL-2,4-PENTANEDIOL × 3 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MFNA_METJA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–397； UniProt 1–396 Author chain B； PDBConstruct 2–397； UniProt 1–396

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	3f9t
Deposition date deposition_date	2008-11-14
Structure title title	Crystal structure of L-tyrosine decarboxylase MfnA (EC 4.1.1.25) (NP_247014.1) from METHANOCOCCUS JANNASCHII at 2.11 A resolution
Keywords keywords	;NP_247014.1, L-tyrosine decarboxylase MfnA (EC 4.1.1.25), Structural Genomics, Joint Center for Structural Genomics, JCSG, Protein Structure Initiative, PSI-2, Decarboxylase, Lyase, Pyridoxal phosphate ;; LYASE
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.

3f9t__assembly_1__model_1

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

Download this curve (.dat)

3f9t__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3f9t__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	27.39 Å
Rg (electron density)	26.51 Å
Total Rg	27.20 Å
Atom count	6308
Residues	769
Excluded volume	113910 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3f9t__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	L-tyrosine decarboxylase MfnA
Molecular weight formula_weight	45596.3 kDa
EC 编号 ec_number	4.1.1.25
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	6771

GMRNMQEKGVSEKEILEELKKYRSLDLKYEDGNIFGSMCSNVLPITRKIVDIFLETNLGDPGLFKGTKLLEEKAVALLGSLLNNKDAYGHIVSGGTEANLMALRCIKNIWREKRRKGLSKNEHPKIIVPITAHFSFEKGREMMDLEYIYAPIKEDYTIDEKFVKDAVEDYDVDGIIGIAGTTELGTIDNIEELSKIAKENNIYIHVDAAFGGLVIPFLDDKYKKKGVNYKFDFSLGVDSITIDPHKMGHCPIPSGGILFKDIGYKRYLDVDAPYLTETRQATILGTRVGFGGACTYAVLRYLGREGQRKIVNECMENTLYLYKKLKENNFKPVIEPILNIVAIEDEDYKEVCKKLRDRGIYVSVCNCVKALRIVVMPHIKREHIDNFIEILNSIKRD

Source Source

Source organism organism	Methanocaldococcus jannaschii
Common name common_name	Methanococcus jannaschii
NCBI taxonomy ID ncbi_taxonomy_id	2190
Host organism host_organism	Escherichia Coli

Entity 2 Entity 2 non-polymer

Description description	PYRIDOXAL-5'-PHOSPHATE
Molecular weight formula_weight	247.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	(4S)-2-METHYL-2,4-PENTANEDIOL
Molecular weight formula_weight	118.2 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	402

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6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id	3f9tA01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1150 — Aspartate Aminotransferase, domain 1
Homologous superfamily homologous superfamily	10 — Aspartate Aminotransferase, domain 1

Domain ID domain_id	3f9tA02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	640 — Aspartate Aminotransferase; domain 2
Homologous superfamily homologous superfamily	10 — Type I PLP-dependent aspartate aminotransferase-like (Major domain)

Domain ID domain_id	3f9tB01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1150 — Aspartate Aminotransferase, domain 1
Homologous superfamily homologous superfamily	10 — Aspartate Aminotransferase, domain 1

Domain ID domain_id	3f9tB02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	640 — Aspartate Aminotransferase; domain 2
Homologous superfamily homologous superfamily	10 — Type I PLP-dependent aspartate aminotransferase-like (Major domain)

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Unit-cell length a length_a	85.276 Å
Unit-cell length b length_b	104.128 Å
Unit-cell length c length_c	119.915 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	2.110 Å
Low-resolution limit resolution_low	29.975 Å
R factor r_factor	0.1600
R_work r_work	0.1580
R_free r_free	0.1920

Crystal structure of L-tyrosine decarboxylase MfnA (EC 4.1.1.25) (NP_247014.1) from METHANOCOCCUS JANNASCHII at 2.11 A resolution

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

L-tyrosine decarboxylase MfnA

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

3f9t__assembly_1__model_1

3f9t__assembly_1__model_1 | I(q)

3f9t__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) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)

Crystal structure of L-tyrosine decarboxylase MfnA (EC 4.1.1.25) (NP_247014.1) from METHANOCOCCUS JANNASCHII at 2.11 A resolution

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

L-tyrosine decarboxylase MfnA

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

3f9t__assembly_1__model_1

3f9t__assembly_1__model_1 | I(q)

3f9t__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) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)