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Description

Title :   RECOMBINANT BIFUNCTIONAL HAGEMAN FACTOR/AMYLASE INHIBITOR FROM MAIZE

Authors :   C. A. Behnke, V. C. Yee, I. Le Trong, L. C. Pedersen, R. E. Stenkamp, S. S. Kim, G. R. Reeck, D. C. Teller

Date :   13 May 98 (Deposition) - 12 Aug 98 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.20

Chains :   Asym./Biol. Unit : A

Keywords :   Serine Protease Inhibitor, Amylase/Protease Bifunctional Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   C. A. Behnke, V. C. Yee, I. L. Trong, L. C. Pedersen, R. E. Stenkamp, S. S. Kim, G. R. Reeck, D. C. Teller
Structural Determinants Of The Bifunctional Corn Hageman Factor Inhibitor: X-Ray Crystal Structure At 1. 95 A Resolution.
Biochemistry V. 37 15277 1998
PubMed-ID: 9799488 | Reference-DOI: 10.1021/BI9812266
(for further references see the PDB file header)

Compounds

Molecule 1 - BIFUNCTIONAL AMYLASE/SERINE PROTEASE INHIBITOR
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21
	Expression System Gene	:	7N-CHFI
	Expression System Plasmid	:	PT7-7
	Expression System Strain	:	BL21
	Expression System Taxid	:	511693
	Gene	:	7N-CHFI
	Organ	:	SEED
	Organism Scientific	:	ZEA MAYS
	Organism Taxid	:	4577

Structural Features

Chains, Units

		1
Asymmetric/Biological Unit	:	A

Summary Information (see also Sequences/Alignments below)

Ligands, Modified Residues, Ions (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1BFA)

Sites (1, 1)

Asymmetric Unit (1, 1)

No.	Name	Evidence	Residues	Description
1	SLE	UNKNOWN	ARG A:34 , LEU A:35	CLEAVED BY TARGET SERINE PROTEASES.

SS Bonds (5, 5)

Asymmetric/Biological Unit

No.	Residues
1	A:6	-	A:55
2	A:20	-	A:44
3	A:29	-	A:86
4	A:45	-	A:104
5	A:57	-	A:115

Cis Peptide Bonds (0, 0)

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

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_ITRF_MAIZE_001 *	E	117	A	ITRF_MAIZE	---	---	A	E	89	A
	* 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	CEREAL_TRYP_AMYL_INH	PS00426	Cereal trypsin/alpha-amylase inhibitors family signature.	ITRF_MAIZE	34-57	1	A:6-29

Exons (0, 0)

(no "Exon" information available for 1BFA)

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:116
 aligned with ITRF_MAIZE | P01088 from UniProtKB/Swiss-Prot  Length:155

    Alignment length:116
                                    42        52        62        72        82        92       102       112       122       132       142      
           ITRF_MAIZE    33 SCVPGWAIPHNPLPSCRWYVTSRTCGIGPRLPWPELKRRCCRELADIPAYCRCTALSILMDGAIPPGPDAQLEGRLEDLPGCPREVQRGFAATLVTEAECNLATISGVAECPWILG 148
               SCOP domains d1bfaa_ A: Hageman factor/amylase inhibitor                                                                          SCOP domains
               CATH domains 1bfaA00 A:5-120 Bifunctional Trypsin/Alpha-Amylase Inhibitor                                                         CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .............hhhhhhhhhhh........hhhhhhhhhhhhh...hhhhhhhhhhhhh......................hhhhhhhhhh....................... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------A------------------------------- SAPs(SNPs)
                    PROSITE -CEREAL_TRYP_AMYL_INH    ------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------- Transcript
                 1bfa A   5 SCVPGWAIPHNPLPSCRWYVTSRTCGIGPRLPWPELKRRCCRELADIPAYCRCTALSILMDGAIPPGPDAQLEGRLEDLPGCPREVQRGFAATLVTEAECNLATISGVAECPWILG 120
                                    14        24        34        44        54        64        74        84        94       104       114

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: All alpha proteins (14657)

Fold: Bifunctional inhibitor/lipid-transfer protein/seed storage 2S albumin (42)

Superfamily: Bifunctional inhibitor/lipid-transfer protein/seed storage 2S albumin (42)

Family: Proteinase/alpha-amylase inhibitors (6)

Protein domain: Hageman factor/amylase inhibitor (2)

Maize (Zea mays) [TaxId: 4577] (2)

d1bfaa_

CATH Domains (1, 1)

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Alpha (13335)

Architecture: Orthogonal Bundle (10391)

Topology: Bifunctional Trypsin/Alpha-Amylase Inhibitor (8)

Homologous Superfamily: Bifunctional Trypsin/Alpha-Amylase Inhibitor (8)

Zea mays. Organism_taxid: 4577. (2)

1bfaA00

A:5-120

Pfam Domains (0, 0)

(no "Pfam Domain" information available for 1BFA)

Gene Ontology (5, 5)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (ITRF_MAIZE | P01088)

molecular function
	GO:0030414	peptidase inhibitor activity	Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds.
	GO:0004867	serine-type endopeptidase inhibitor activity	Stops, prevents or reduces the activity of serine-type endopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain; a serine residue (and a histidine residue) are at the active center of the enzyme.
biological process
	GO:0010951	negative regulation of endopeptidase activity	Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
	GO:0010466	negative regulation of peptidase activity	Any process that stops or reduces the rate of peptidase activity, the hydrolysis of peptide bonds within proteins.
cellular component
	GO:0005576	extracellular region	The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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Related Entries

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UniProtKB/Swiss-Prot
	ITRF_MAIZE \| P01088	:	1bea

Related Entries Specified in the PDB File

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