8SMP

Xenopus laevis hyaluronan synthase 1, UDP-bound, gating loop inserted state

• PDB DOI: https://doi.org/10.2210/pdb8SMP/pdb
• EM Map EMD-40598: EMDB EMDataResource

• Classification: Transferase/Immune System
• Organism(s): Xenopus laevis, Homo sapiens
• Expression System: Spodoptera frugiperda, Escherichia coli
• Mutation(s): No 
• Membrane Protein: Yes  PDBTM


• Deposited: 2023-04-26 Released: 2024-05-01 
• Deposition Author(s): Gorniak, I., Zimmer, J.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), Boehringer Ingelheim Fonds (BIF)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.40 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Atomistic insights into hyaluronan synthesis, secretion, and length control

Gorniak, I., Stephens, Z.S., Erramilli, S.K., Gawda, T., Kossiakoff, A.A., Zimmer, J.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 118.75 kDa 
• Atom Count: 6,097 
• Modelled Residue Count: 757 
• Deposited Residue Count: 1,050 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hyaluronan synthase 1	A	601	Xenopus laevis	Mutation(s): 0  Gene Names: has1 EC: 2.4.1.212 Membrane Entity: Yes
UniProt
Find proteins for P13563 (Xenopus laevis) Explore P13563  Go to UniProtKB:  P13563

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Fab15 heavy chain	B [auth H]	234	Homo sapiens	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Fab15 light chain	C [auth L]	215	Homo sapiens	Mutation(s): 0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
UDP (Subject of Investigation/LOI)	D [auth A]	URIDINE-5'-DIPHOSPHATE C9 H14 N2 O12 P2 XCCTYIAWTASOJW-XVFCMESISA-N
MG (Subject of Investigation/LOI)	E [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.40 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-05-01 
Deposition Author(s): Gorniak, I., Zimmer, J.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R35GM144130
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R01GM117372
Boehringer Ingelheim Fonds (BIF)	Germany	--

Revision History  

• Version 1.0: 2024-05-01
  Type: Initial release