SAXSdb — 1y80

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

No usable UniProt protein identity is available for this entry.

The relationship tables retain this entry's assembly and composition data, but cross-PDB links for the same protein cannot be established reliably without a unified protein identity.

Assembly Composition of the Current Entry

Assembly	Physical composition	Protein state	蛋白 / DNA / RNA / 其他Polymer	Data consistency
1	Protein monomer	Monomer	1 / 0 / 0 / 0	Consistent with protein count

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	1y80
Deposition date deposition_date	2004-12-10
Structure title title	Structure of a corrinoid (factor IIIm)-binding protein from Moorella thermoacetica
Keywords keywords	;corrinoid, factor IIIm, methyl transferase, Structural Genomics, PSI, Protein Structure Initiative, Southeast Collaboratory for Structural Genomics, SECSG, UNKNOWN FUNCTION ;; STRUCTURAL GENOMICS, UNKNOWN FUNCTION
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	`1y80__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 (4)

Entity 1 Entity 1 polymer

Description description	Predicted cobalamin binding protein
Molecular weight formula_weight	22346.7 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	1087

MPTYEELSQAVFEGDEAQVVELTRSLLSGGAEPLEVINKGLIAGMDRVGVLFKNNEMFVPEVLMSANAMNAGVEVVKQSQQAFDMPSVGKIVLGTVKGDLHDIGKNLVAMMLESGGFTVYNLGVDIEPGKFVEAVKKYQPDIVGMSALLTTTMMNMKSTIDALIAAGLRDRVKVIVGGAPLSQDFADEIGADGYAPDAASATELCRQLLE

Entity 2 Entity 2 non-polymer

Description description	CO-5-METHOXYBENZIMIDAZOLYLCOBAMIDE
Molecular weight formula_weight	1331.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	UNKNOWN ATOM OR ION
Source method src_method	syn
Copy count entity_count	5

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	72

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6. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id	1y80A00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	280 — Cobalamin-binding domain

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Unit-cell length a length_a	55.689 Å
Unit-cell length b length_b	62.738 Å
Unit-cell length c length_c	34.543 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	4

Space group space_group	P 21 21 2
Space-group number int_tables_number	18
Crystal system crystal_system	—

Resolution resolution	1.700 Å
Low-resolution limit resolution_low	41.630 Å
R factor r_factor	0.1757
R_work r_work	0.1742
R_free r_free	0.2101

Structure of a corrinoid (factor IIIm)-binding protein from Moorella thermoacetica