3PYJ

Reduced sweetness of a monellin (MNEI) mutant results from increased protein flexibility and disruption of a distant poly-(L-proline) II helix

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3pyja_	Alpha and beta proteins (a+b)	Cystatin-like	Cystatin/monellin	Monellin	Monellin, B & A chains together	Serendipity berry (Dioscoreophyllum cumminsii ) [TaxId: 3457 ], Serendipity berry (Dioscoreophyllum cumminsii ) [TaxId: 3457 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF09200	e3pyjA1	A: a+b two layers	X: Cystatin-like	H: Cystatin/monellin (From Topology)	T: Cystatin/monellin	F: PF09200	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.450.10	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.2.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF09200	Monellin (Monellin)	Monellin	Monellin, a protein produced by the West African plant Dioscoreophyllum cumminsii, is approximately 70,000 times sweeter than sucrose on a molar basis. The protein adopts an alpha-beta structure, with a cystatin-like fold, where each helix packs agai ...	Monellin, a protein produced by the West African plant Dioscoreophyllum cumminsii, is approximately 70,000 times sweeter than sucrose on a molar basis. The protein adopts an alpha-beta structure, with a cystatin-like fold, where each helix packs against a coiled antiparallel beta-sheet [1].	Domain

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR038580	Monellin, A chain superfamily	Homologous Superfamily
A	IPR015283	Monellin	Family
A	IPR000828	Monellin, A chain	Family
A	IPR046350	Cystatin superfamily	Homologous Superfamily
A	IPR015283	Monellin	Family
A	IPR046350	Cystatin superfamily	Homologous Superfamily
A	IPR002095	Monellin, B chain	Family

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 R01GM133198.