9EOB | pdb_00009eob

Engineered GH181 sialidase from Akkermansia muciniphila

PDB DOI: https://doi.org/10.2210/pdb9EOB/pdb

Classification: HYDROLASE
Organism(s): Akkermansia muciniphila ATCC BAA-835
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2024-03-14 Released: 2025-03-26
Deposition Author(s): Pichler, M.J., Banerjee, S., Nielsen, T.S., Morth, J.P., Abou Hachem, M.
Funding Organization(s): Independent Research Fund Denmark - Medical Sciences

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.77 Å
R-Value Free:
0.195 (Depositor), 0.202 (DCC)
R-Value Work:
0.155 (Depositor)

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Validation slider image for 9EOB

This is version 1.1 of the entry. See complete history.

Literature

Engineered GH181 sialidase from Akkermansia muciniphila

Pichler, M.J., Corbella, M., Banerjee, S., Nielsen, T.S., Morth, J.P., Rovira, C., Abou Hachem, M.

(2025) ACS Catal

DOI: https://doi.org/10.1021/acscatal.5c01023

Macromolecule Content

Total Structure Weight: 66.48 kDa
Atom Count: 5,315
Modeled Residue Count: 579
Deposited Residue Count: 580
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
exo-alpha-sialidase	A	580	Akkermansia muciniphila ATCC BAA-835	Mutation(s): 0 Gene Names: HXS70_08015 EC: 3.2.1.18
UniProt
Find proteins for B2ULI1 (Akkermansia muciniphila (strain ATCC BAA-835 / DSM 22959 / JCM 33894 / BCRC 81048 / CCUG 64013 / CIP 107961 / Muc)) Explore B2ULI1 Go to UniProtKB: B2ULI1
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	B2ULI1
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
PEG Query on PEG Download:Ideal Coordinates CCD File SDF format, chain L [auth A] MOL2 format, chain L [auth A] mmCIF format, chain L [auth A]	L [auth A]	DI(HYDROXYETHYL)ETHER C₄ H₁₀ O₃ MTHSVFCYNBDYFN-UHFFFAOYSA-N		Interactions Focus chain L [auth A] Interactions & Density Focus chain L [auth A]
EDO Query on EDO Download:Ideal Coordinates CCD File SDF format, chain C [auth A] SDF format, chain E [auth A] SDF format, chain F [auth A] SDF format, chain G [auth A] SDF format, chain H [auth A] SDF format, chain I [auth A] SDF format, chain J [auth A] SDF format, chain K [auth A] SDF format, chain M [auth A] SDF format, chain N [auth A] SDF format, chain O [auth A] SDF format, chain P [auth A] SDF format, chain Q [auth A] SDF format, chain R [auth A] SDF format, chain S [auth A] SDF format, chain T [auth A] SDF format, chain U [auth A] SDF format, chain D [auth A] MOL2 format, chain C [auth A] MOL2 format, chain E [auth A] MOL2 format, chain F [auth A] MOL2 format, chain G [auth A] MOL2 format, chain H [auth A] MOL2 format, chain I [auth A] MOL2 format, chain J [auth A] MOL2 format, chain K [auth A] MOL2 format, chain M [auth A] MOL2 format, chain N [auth A] MOL2 format, chain O [auth A] MOL2 format, chain P [auth A] MOL2 format, chain Q [auth A] MOL2 format, chain R [auth A] MOL2 format, chain S [auth A] MOL2 format, chain T [auth A] MOL2 format, chain U [auth A] MOL2 format, chain D [auth A] mmCIF format, chain C [auth A] mmCIF format, chain E [auth A] mmCIF format, chain F [auth A] mmCIF format, chain G [auth A] mmCIF format, chain H [auth A] mmCIF format, chain I [auth A] mmCIF format, chain J [auth A] mmCIF format, chain K [auth A] mmCIF format, chain M [auth A] mmCIF format, chain N [auth A] mmCIF format, chain O [auth A] mmCIF format, chain P [auth A] mmCIF format, chain Q [auth A] mmCIF format, chain R [auth A] mmCIF format, chain S [auth A] mmCIF format, chain T [auth A] mmCIF format, chain U [auth A] mmCIF format, chain D [auth A]	C [auth A] D [auth A] E [auth A] F [auth A] G [auth A] C [auth A], D [auth A], E [auth A], F [auth A], G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], M [auth A], N [auth A], O [auth A], P [auth A], Q [auth A], R [auth A], S [auth A], T [auth A], U [auth A]	1,2-ETHANEDIOL C₂ H₆ O₂ LYCAIKOWRPUZTN-UHFFFAOYSA-N		Interactions Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain M [auth A] Focus chain N [auth A] Focus chain O [auth A] Focus chain P [auth A] Focus chain Q [auth A] Focus chain R [auth A] Focus chain S [auth A] Focus chain T [auth A] Focus chain U [auth A] Interactions & Density Focus chain C [auth A] Focus chain D [auth A] Focus chain E [auth A] Focus chain F [auth A] Focus chain G [auth A] Focus chain H [auth A] Focus chain I [auth A] Focus chain J [auth A] Focus chain K [auth A] Focus chain M [auth A] Focus chain N [auth A] Focus chain O [auth A] Focus chain P [auth A] Focus chain Q [auth A] Focus chain R [auth A] Focus chain S [auth A] Focus chain T [auth A] Focus chain U [auth A]
NI Query on NI Download:Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A] mmCIF format, chain B [auth A]	B [auth A]	NICKEL (II) ION Ni VEQPNABPJHWNSG-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]
CL Query on CL Download:Ideal Coordinates CCD File SDF format, chain AA [auth A] SDF format, chain BA [auth A] SDF format, chain CA [auth A] SDF format, chain V [auth A] SDF format, chain W [auth A] SDF format, chain X [auth A] SDF format, chain Y [auth A] SDF format, chain Z [auth A] MOL2 format, chain AA [auth A] MOL2 format, chain BA [auth A] MOL2 format, chain CA [auth A] MOL2 format, chain V [auth A] MOL2 format, chain W [auth A] MOL2 format, chain X [auth A] MOL2 format, chain Y [auth A] MOL2 format, chain Z [auth A] mmCIF format, chain AA [auth A] mmCIF format, chain BA [auth A] mmCIF format, chain CA [auth A] mmCIF format, chain V [auth A] mmCIF format, chain W [auth A] mmCIF format, chain X [auth A] mmCIF format, chain Y [auth A] mmCIF format, chain Z [auth A]	AA [auth A] BA [auth A] CA [auth A] V [auth A] W [auth A] AA [auth A], BA [auth A], CA [auth A], V [auth A], W [auth A], X [auth A], Y [auth A], Z [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain AA [auth A] Focus chain BA [auth A] Focus chain CA [auth A] Focus chain V [auth A] Focus chain W [auth A] Focus chain X [auth A] Focus chain Y [auth A] Focus chain Z [auth A] Interactions & Density Focus chain AA [auth A] Focus chain BA [auth A] Focus chain CA [auth A] Focus chain V [auth A] Focus chain W [auth A] Focus chain X [auth A] Focus chain Y [auth A] Focus chain Z [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.77 Å
R-Value Free: 0.195 (Depositor), 0.202 (DCC)
R-Value Work: 0.155 (Depositor)

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 74.67	α = 90
b = 88.189	β = 90
c = 99.585	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
autoPROC	data reduction
TRUNCATE	data scaling
MOLREP	phasing

Structure Validation

View Full Validation Report

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2025-03-26

Deposition Author(s):

Abou Hachem, M.

Funding Organization	Location	Grant Number
Independent Research Fund Denmark - Medical Sciences	Denmark	1026-00386B

Revision History (Full details and data files)

Version 1.0: 2025-03-26
Type: Initial release
Version 1.1: 2025-05-21
Changes: Database references

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.