1YN3: Truncated cell surface protein map-w

Crystal Structures of EAP Domains from Staphylococcus aureus Reveal an Unexpected Homology to Bacterial Superantigens. Determined by X-ray diffraction at 1.35 Å resolution. Released 1 Mar 2005.

Method: X-ray diffraction
Resolution: 1.35 Å
Organism: Staphylococcus aureus
Chains: 2
Atoms: 1,824
Mol. weight: 21.62 kDa
Released: 1 Mar 2005

Explore 1YN3 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1YN3 contains 8 α-helices and 14 β-strands across 2 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chains A and B: 4 helices, 7 β-strands

Element	Residues	Length	Sheet
β-strand	158-166	9	1
α-helix	172	1
β-strand	173-179	7	1
β-strand	184-186	3	2
α-helix	187-202	16
α-helix	206-211	6
β-strand	215-221	7	1
β-strand	226-230	5	1
β-strand	240-242	3	2
α-helix	243-245	3
β-strand	246-253	8	1

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
truncated cell surface protein map-w	A, B	protein	98	Staphylococcus aureus	Q99QS1 (AlphaFold model)

Sequence of entity 1 (A, B), FASTA

>1YN3_1 truncated cell surface protein map-w (chains A, B)
GSTVPYTITVNGTSQNILSNLTFNKNQNISYKDLEGKVKSVLESNRGITDVDLRLSKQAK
YTVNFKNGTKKVIDLKSGIYTANLINSSDIKSININID

Primary citation

The Crystal Structures of EAP Domains from Staphylococcus aureus Reveal an Unexpected Homology to Bacterial Superantigens. Geisbrecht, B.V., Hamaoka, B.Y., Perman, B. et al. J Biol Chem (2005) 280:17243-17250. DOI 10.1074/jbc.M412311200 · PubMed

Other PDB entries of the same protein (UniProt Q99QS1 (AlphaFold model), which also has an AlphaFold model), best resolution first:

8D4O 1.45 Å, Crystal Structure of the Neutrophil Serine Protease Inhibitor Eap1 from S. aureus
9ASS 1.75 Å, Crystal Structure of Neutrophil Elastase Inhibited by Eap4 from S. aureus
8D4V 1.85 Å, Crystal Structure of Cathepsin G Inhibited by Eap2 from S. aureus
8D4U 1.9 Å, Crystal Structure of Neutrophil Elastase Inhibited by Eap2 from S. aureus
8D4S 1.95 Å, Crystal Structure of Cathepsin G Inhibited by Eap1 from S. aureus
9ASX 1.96 Å, BIFUNCTIONAL INHIBITION OF NEUTROPHIL ELASTASE AND CATHEPSIN G by Eap3 of S. aureus
9ATU 2.05 Å, Bifunctional Inhibition of Neutrophil Elastase by Eap4 from S. aureus
9ATK 2.11 Å, BIFUNCTIONAL INHIBITION OF NEUTROPHIL ELASTASE AND CATHEPSIN G by Eap4 of S. aureus
8D4Q 2.2 Å, Crystal Structure of Neutrophil Elastase Inhibited by Eap1 from S. aureus
8D7K 3.1 Å, Bifunctional Inhibition of Neutrophil Elastase and Cathepsin G by Eap2 from S. aureus
8D7I 3.63 Å, Bifunctional Inhibition of Neutrophil Elastase and Cathepsin G by Eap1 from S. aureus

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