SAXSdb — 2iv2

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

Formate dehydrogenase H

Escherichia coli

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	IRON/SULFUR CLUSTER × 1 ;GUANYLATE-O'-PHOSPHORIC ACID MONO-(2-AMINO-5,6-DIMERCAPTO-4-OXO-3,5,6,7,8A,9,10,10A-OCTAHYDRO-4H-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-7-YLMETHYL) ESTER ; × 1 2-AMINO-5,6-DIMERCAPTO-7-METHYL-3,7,8A,9-TETRAHYDRO-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-4-ONE GUANOSINE DINUCLEOTIDE × 1 MOLYBDENUM ATOM × 1 UNKNOWN ATOM OR ION × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FDHF_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain X； PDBConstruct 1–715； UniProt 1–715

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	2iv2
Deposition date deposition_date	2006-06-08
Structure title title	Reinterpretation of reduced form of formate dehydrogenase H from E. coli
Keywords keywords	;OXIDOREDUCTASE, 4FE-4S, NAEROBIC, DEHYDROGENASE, FE4S4, FORMATE, IRON, IRON SULFUR CLUSTER, IRON-SULFUR, METAL-BINDING, MGD, MOLYBDENUM, MOLYBDOPTERIN, MOLYBDOPTERIN GUANINE DINUCLEOTIDE, MPT, NAD, SECYS, SELENIUM, SELENOCYSTEINE ;; OXIDOREDUCTASE
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.

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2iv2__assembly_1__model_1`	monomeric （1）	Excluded	—	—
	Exclusion reason： The source record does not identify the atom or ion element unambiguously, so a reliable calculation is not possible.

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (7)

Entity 1 Entity 1 polymer

Description description	Formate dehydrogenase H
Molecular weight formula_weight	79465.7 kDa
EC 编号 ec_number	1.17.1.9,1.17.99.7
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	X
Atom count atom_count	5817

MKKVVTVCPYCASGCKINLVVDNGKIVRAEAAQGKTNQGTLCLKGYYGWDFINDTQILTPRLKTPMIRRQRGGKLEPVSWDEALNYVAERLSAIKEKYGPDAIQTTGSSRGTGNETNYVMQKFARAVIGTNNVDCCARVUHGPSVAGLHQSVGNGAMSNAINEIDNTDLVFVFGYNPADSHPIVANHVINAKRNGAKIIVCDPRKIETARIADMHIALKNGSNIALLNAMGHVIIEENLYDKAFVASRTEGFEEYRKIVEGYTPESVEDITGVSASEIRQAARMYAQAKSAAILWGMGVTQFYQGVETVRSLTSLAMLTGNLGKPHAGVNPVRGQNNVQGACDMGALPDTYPGYQYVKDPANREKFAKAWGVESLPAHTGYRISELPHRAAHGEVRAAYIMGEDPLQTDAELSAVRKAFEDLELVIVQDIFMTKTASAADVILPSTSWGEHEGVFTAADRGFQRFFKAVEPKWDLKTDWQIISEIATRMGYPMHYNNTQEIWDELRHLCPDFYGATYEKMGELGFIQWPCRDTSDADQGTSYLFKEKFDTPNGLAQFFTCDWVAPIDKLTDEYPMVLSTVREVGHYSCRSMTGNCAALAALADEPGYAQINTEDAKRLGIEDEALVWVHSRKGKIITRAQVSDRPNKGAIYMTYQWWIGACNELVTENLSPITKTPEYKYCAVRVEPIADQRAAEQYVIDEYNKLKTRLREAALA

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	IRON/SULFUR CLUSTER
Molecular weight formula_weight	351.6 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	;GUANYLATE-O'-PHOSPHORIC ACID MONO-(2-AMINO-5,6-DIMERCAPTO-4-OXO-3,5,6,7,8A,9,10,10A-OCTAHYDRO-4H-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-7-YLMETHYL) ESTER ;
Molecular weight formula_weight	742.6 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	2-AMINO-5,6-DIMERCAPTO-7-METHYL-3,7,8A,9-TETRAHYDRO-8-OXA-1,3,9,10-TETRAAZA-ANTHRACEN-4-ONE GUANOSINE DINUCLEOTIDE
Molecular weight formula_weight	740.6 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 non-polymer

Description description	MOLYBDENUM ATOM
Molecular weight formula_weight	95.9 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 6 Entity 6 non-polymer

Description description	UNKNOWN ATOM OR ION
Source method src_method	syn
Copy count entity_count	1

Entity 7 Entity 7 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	267

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d2iv2x1
Class class	b — All beta proteins
Fold Fold fold	b.52 — Double psi beta-barrel
Superfamily Superfamily superfamily	b.52.2 — ADC-like
Family Family family	b.52.2.2 — Formate dehydrogenase/DMSO reductase, C-terminal domain

Domain ID domain_id	d2iv2x2
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.81 — Formate dehydrogenase/DMSO reductase, domains 1-3
Superfamily Superfamily superfamily	c.81.1 — Formate dehydrogenase/DMSO reductase, domains 1-3
Family Family family	c.81.1.1 — Formate dehydrogenase/DMSO reductase, domains 1-3

CATH v4.4 (4 domains)

Domain ID domain_id	2iv2X01
Class class	2 — Mainly Beta
Architecture architecture	20 — Single Sheet
Topology topology	25 — N-terminal domain of TfIIb
Homologous superfamily homologous superfamily	90 — ADC-like domains

Domain ID domain_id	2iv2X02
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	740 —

Domain ID domain_id	2iv2X03
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	228 — Dimethylsulfoxide Reductase; domain 2
Homologous superfamily homologous superfamily	10 — Dimethylsulfoxide Reductase, domain 2

Domain ID domain_id	2iv2X04
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	40 — Barwin-like endoglucanases
Homologous superfamily homologous superfamily	20 —

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Unit-cell length a length_a	146.400 Å
Unit-cell length b length_b	146.400 Å
Unit-cell length c length_c	81.270 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 41 21 2
Space-group number int_tables_number	92
Crystal system crystal_system	—

Resolution resolution	2.270 Å
Low-resolution limit resolution_low	34.500 Å
R factor r_factor	0.1780
R_work r_work	0.1750
R_free r_free	0.2260

Reinterpretation of reduced form of formate dehydrogenase H from E. coli

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

Formate dehydrogenase H

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

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (7)

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 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

CATH v4.4 (4 domains)

7. Citations (2)

Reinterpretation of reduced form of formate dehydrogenase H from E. coli

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

Formate dehydrogenase H

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

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (7)

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 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

CATH v4.4 (4 domains)

7. Citations (2)