2HCZ

Crystal structure of EXPB1 (Zea m 1), a beta-expansin and group-1 pollen allergen from maize

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A [auth X]	d2hczx2	All beta proteins	C2 domain-like	PHL pollen allergen	automated matches	automated matches	(Zea mays ) [TaxId: 4577 ],	SCOPe (2.08)
A [auth X]	d2hczx1	All beta proteins	Double psi beta-barrel	Barwin-like endoglucanases	automated matches	automated matches	(Zea mays ) [TaxId: 4577 ],	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 [auth X]	DPBB_1_1	e2hczX3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: double psi	F: DPBB_1_1	ECOD (1.6)
A [auth X]	Pollen_allerg_1	e2hczX4	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Pollen_allerg_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth X]	2.40.40.10	Mainly Beta	Beta Barrel	Barwin-like endoglucanases	RlpA-like domain	CATH (4.3.0)
A [auth X]	2.60.40.760	Mainly Beta	Sandwich	Immunoglobulin-like	Expansin, cellulose-binding-like domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth X]	PF03330	Lytic transglycolase (DPBB_1)	Lytic transglycolase	Rare lipoprotein A (RlpA) contains a conserved region that has the double-psi beta-barrel (DPBB) fold [3,4]. The function of RlpA is not well understood, but it has been shown to act as a prc mutant suppressor in Escherichia coli [1]. The DPBB fold i ...	Rare lipoprotein A (RlpA) contains a conserved region that has the double-psi beta-barrel (DPBB) fold [3,4]. The function of RlpA is not well understood, but it has been shown to act as a prc mutant suppressor in Escherichia coli [1]. The DPBB fold is often an enzymatic domain. The members of this family are quite diverse, and if catalytic this family may contain several different functions. Another example of this domain is found in the N terminus of pollen allergen. Recent studies show that the full-length RlpA protein from Pseudomonas Aeruginosa is an outer membrane protein that is a lytic transglycolase with specificity for peptidoglycan lacking stem peptides. Residue D157 in UniProtKB:Q9X6V6 is critical for lytic activity [5].	Domain
A [auth X]	PF01357	Expansin C-terminal domain (Expansin_C)	Expansin C-terminal domain	This domain is found at the C-terminus of expansins, plant cell wall proteins involved in the non-enzymatic rearrangement of cell walls during cell growth. It contains the allergens lol PI, PII and PIII from Lolium perenne.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth X]	Beta-expansin 1a	-	sexual reproduction reproductive process developmental process anatomical structure morphogenesis anatomical structure development cellular component organization cell wall organization or biogenesis cell wall organization cellular process cellular component organization or biogenesis external encapsulating structure organization	membrane cellular anatomical entity extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth X]	IPR036908	RlpA-like domain superfamily	Homologous Superfamily
A [auth X]	IPR007112	Expansin/pollen allergen, DPBB domain	Domain
A [auth X]	IPR009009	RlpA-like protein, double-psi beta-barrel domain	Domain
A [auth X]	IPR007117	Expansin, cellulose-binding-like domain	Domain
A [auth X]	IPR036749	Expansin, cellulose-binding-like domain superfamily	Homologous Superfamily
A [auth X]	IPR007118	Expansin/Lol pI	Family
A [auth X]	IPR005795	Major pollen allergen Lol pI	Family

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A [auth X]	HYP	Parent Component: PRO RESID: AA0030 PSI-MOD : 4-hydroxy-L-proline MOD:00039

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.