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Description

Title :   CRYSTAL STRUCTURE ANALYSIS OF HEV B 6.02 (HEVEIN) AT 1.5 ANGSTROMS RESOLUTION

Authors :   A. Rodriguez-Romero, A. Hernandez-Santoyo

Date :   22 Aug 03 (Deposition) - 13 Jan 04 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.50

Chains :   Asym./Biol. Unit : A

Keywords :   Allergen, Lectin, Agglutinin-Toxin Motif (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   C. A. Reyes-Lopez, A. Hernandez-Santoyo, M. Pedraza-Escalona, G. Mendoza, A. Hernandez-Arana, A. Rodriguez-Romero
Insights Into A Conformational Epitope Of Hev B 6. 02 (Hevein).
Biochem. Biophys. Res. Commun. V. 314 123 2004
PubMed-ID: 14715255 | Reference-DOI: 10.1016/J.BBRC.2003.12.068
(for further references see the PDB file header)

Compounds

Molecule 1 - HEVEIN
	Chains	:	A
	Organism Scientific	:	HEVEA BRASILIENSIS
	Organism Taxid	:	3981
	Synonym	:	HEV B 6.02
	Tissue	:	LATEX

Structural Features

Chains, Units

		1
Asymmetric/Biological Unit	:	A

Summary Information (see also Sequences/Alignments below)

Ligands, Modified Residues, Ions (1, 2)

Asymmetric/Biological Unit (1, 2)

No.	Name	Count	Type	Full Name
1	MPD	2	Ligand/Ion	(4S)-2-METHYL-2,4-PENTANEDIOL

Sites (2, 2)

Asymmetric Unit (2, 2)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	LEU A:11 , PRO A:13 , TRP A:21 , SER A:39 , ASN A:40 , HOH A:207 , HOH A:220 , HOH A:224	BINDING SITE FOR RESIDUE MPD A 101
2	AC2	SOFTWARE	ARG A:5 , ASN A:15 , TRP A:23 , GLU A:29 , TYR A:30 , ASN A:40 , HOH A:204	BINDING SITE FOR RESIDUE MPD A 102

SS Bonds (4, 4)

Asymmetric/Biological Unit

No.	Residues
1	A:3	-	A:18
2	A:12	-	A:24
3	A:17	-	A:31
4	A:37	-	A:41

Cis Peptide Bonds (0, 0)

(no "Cis Peptide Bond" information available for 1Q9B)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (1, 1)

Asymmetric/Biological Unit (1, 1)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_HEVE_HEVBR_001 *	N	31	D	HEVE_HEVBR	---	---	A	N	14	D
	* ID not provided by source

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

PROSITE Motifs (1, 1)

Asymmetric/Biological Unit (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CHIT_BIND_I_1	PS00026	Chitin recognition or binding domain signature.	HEVE_HEVBR	29-48	1	A:12-31

Exons (0, 0)

(no "Exon" information available for 1Q9B)

Sequences/Alignments

Asymmetric/Biological Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:43
 aligned with HEVE_HEVBR | P02877 from UniProtKB/Swiss-Prot  Length:204

    Alignment length:43
                                    27        37        47        57   
            HEVE_HEVBR   18 EQCGRQAGGKLCPNNLCCSQWGWCGSTDEYCSPDHNCQSNCKD 60
               SCOP domains d1q9ba_ A: Hevein                           SCOP domains
               CATH domains 1q9bA00 A:1-43                              CATH domains
               Pfam domains Chitin_bind_1-1q9bA01 A:1-41             -- Pfam domains
         Sec.struct. author ..hhhhhh...hhhhhee.....ee.hhhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) -------------D----------------------------- SAPs(SNPs)
                    PROSITE -----------CHIT_BIND_I_1       ------------ PROSITE
                 Transcript ------------------------------------------- Transcript
                  1q9b A  1 EQCGRQAGGKLCPNNLCCSQWGWCGSTDEYCSPDHNCQSNCKD 43
                                    10        20        30        40

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Classification and Annotation

SCOP Domains (1, 1)

Asymmetric/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Small proteins (3458)

Fold: Knottins (small inhibitors, toxins, lectins) (761)

Superfamily: Plant lectins/antimicrobial peptides (31)

Family: Hevein-like agglutinin (lectin) domain (28)

Protein domain: Hevein (3)

Rubber tree (Hevea brasiliensis) [TaxId: 3981] (3)

d1q9ba_

CATH Domains (1, 1)

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 2-Layer Sandwich (8480)

Topology: Wheat Germ Agglutinin (Isolectin 2); domain 1 (140)

Homologous Superfamily: [code=3.30.60.10, no name defined] (23)

Hevea brasiliensis. Organism_taxid: 3981. (2)

1q9bA00

A:1-43

Pfam Domains (1, 1)

Asymmetric/Biological Unit

Clans(

)

Families(

)

Organisms( (-)

)

Clan: no clan defined [family: Chitin_bind_1] (17)

Family: Chitin_bind_1 (17)

Hevea brasiliensis (Para rubber tree) (Siphonia brasiliensis) (3)

Chitin_bind_1-1q9bA01

A:1-41

Gene Ontology (3, 3)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (HEVE_HEVBR | P02877)

molecular function
	GO:0008061	chitin binding	Interacting selectively and non-covalently with chitin, a linear polysaccharide consisting of beta-(1->4)-linked N-acetyl-D-glucosamine residues.
biological process
	GO:0042742	defense response to bacterium	Reactions triggered in response to the presence of a bacterium that act to protect the cell or organism.
	GO:0050832	defense response to fungus	Reactions triggered in response to the presence of a fungus that act to protect the cell or organism.

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	1q9b
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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
	HEVE_HEVBR \| P02877	:	1hev 1t0w 1wkx 4wp4

Related Entries Specified in the PDB File

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