1B1U - JenaLib

Title :   CRYSTAL STRUCTURE OF THE BIFUNCTIONAL INHIBITOR RAGI

Authors :   S. Gourinath, A. Srinivasan, T. P. Singh

Date :   23 Nov 98 (Deposition) - 02 Dec 98 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.20

Chains :   Asym./Biol. Unit : A

Keywords :   Alpha-Amylase/Trypsin Inhibitor (Rati), Bifunctional, Hydrolase Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   S. Gourinath, N. Alam, A. Srinivasan, C. Betzel, T. P. Singh
Structure Of The Bifunctional Inhibitor Of Trypsin And Alpha-Amylase From Ragi Seeds At 2. 2 A Resolution.
Acta Crystallogr. , Sect. D V. 56 287 2000
PubMed-ID: 10713515 | Reference-DOI: 10.1107/S0907444999016601
(for further references see the PDB file header)

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (0, 0)

Sites (0, 0)

SS Bonds (5, 5)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (2, 2)

PROSITE Motifs (1, 1)

Exons (0, 0)

Sequences/Alignments

Asymmetric/Biological Unit

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Chain A from PDB  Type:PROTEIN  Length:117
 aligned with IAAT_ELECO | P01087 from UniProtKB/Swiss-Prot  Length:122

    Alignment length:117
                                    12        22        32        42        52        62        72        82        92       102       112       
           IAAT_ELECO     3 GTSCIPGMAIPHNPLDSCRWYVSTRTCGVGPRLATQEMKARCCRQLEAIPAYCRCEAVRILMDGVVTPSGQHEGRLLQDLPGCPRQVQRAFAPKLVTEVECNLATIHGGPFCLSLLG 119
               SCOP domains d1b1ua_ A: Trypsin/alpha-amylase inhibitor RBI                                                                        SCOP domains
               CATH domains 1b1uA00 A:3-119 Bifunctional Trypsin/Alpha-Amylase Inhibitor                                                          CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...............hhhhhhhhhhhh.......hhhhhhhhhhhhhh..hhhhhhhhhhhh..ee.....ee...........hhhhhhhhhh....................... Sec.struct. author
                 SAPs(SNPs) -------------------------A-----------------------------------------S------------------------------------------------- SAPs(SNPs)
                    PROSITE ---CEREAL_TRYP_AMYL_INH    ------------------------------------------------------------------------------------------ PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------- Transcript
                 1b1u A   3 GTSCIPGMAIPHNPLDSCRWYVSTRTCGVGPRLATQEMKARCCRQLEAIPAYCRCEAVRILMDGVVTPSGQHEGRLLQDLPGCPRQVQRAFAPKLVTEVECNLATIHGGPFCLSLLG 119
                                    12        22        32        42        52        62        72        82        92       102       112

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Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (1, 1)

Pfam Domains (0, 0)

Gene Ontology (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (IAAT_ELECO | P01087)

molecular function
	GO:0015066	alpha-amylase inhibitor activity	Stops, prevents or reduces the activity of alpha-amylase.
	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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