1EWU - JenaLib

Title :   KNOWLEDGE BASED MODEL OF A SERINE PROTEASE INHIBITOR OF CUCURBITACEAE FAMILY (THEORETICAL MODEL) BOUND TO TRYPSIN.

Authors :   A. Banerjee, S. Chakraborty, S. Bhattacharyya

Date :   27 Apr 00 (Deposition) - 28 Jun 00 (Release) - 28 Jun 00 (Revision)

Method :   THEORETICAL MODEL

Resolution :   NOT APPLICABLE

Chains :   Theor. Model : A,I

Keywords :   Serine Protease Inhibitor, Trypsin Inhibitor Complex, Homology Modelling (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   A. Banerjee, S. Chakraborty, S. Bhattacharyya, S. Ghosh, A. K. Bera, U. Haldar
Structural And Interactional Homology Of Clinically Potential Trypsin Inhibitors : Molecular Modelling Of A Polypeptide Inhibitor Of Cucurbitaceae Family [La-1] Using The X-Ray Structure Of Mcti-Ii
To Be Published
PubMed: search
(for further references see the PDB file header)

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (0, 0)

Sites (0, 0)

SS Bonds (9, 9)

Cis Peptide Bonds (1, 1)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (1, 1)

PROSITE Motifs (4, 4)

Exons (0, 0)

Sequences/Alignments

Theoretical Model

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:223
 aligned with TRYP_PIG | P00761 from UniProtKB/Swiss-Prot  Length:231

    Alignment length:223
                                    18        28        38        48        58        68        78        88        98       108       118       128       138       148       158       168       178       188       198       208       218       228   
            TRYP_PIG      9 IVGGYTCAANSIPYQVSLNSGSHFCGGSLINSQWVVSAAHCYKSRIQVRLGEHNIDVLEGNEQFINAAKIITHPNFNGNTLDNDIMLIKLSSPATLNSRVATVSLPRSCAAAGTECLISGWGNTKSSGSSYPSLLQCLKAPVLSDSSCKSSYPGQITGNMICVGFLEGGKDSCQGDSGGPVVCNGQLQGIVSWGYGCAQKNKPGVYTKVCNYVNWIQQTIAAN  231
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....ee........eeeee...eeeeeee....eeeehhhhh....eeee............eeeeeeeeee.............eeeee.......................eeeeeee...............eeeeeee.hhhhhhhhh.......eee.................eeee..eeeeeeeee..........eeee...hhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -----------V------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) TRYPSIN_DOM  PDB: A:16-243 UniProt: 9-229                                                                                                                                                                                    -- PROSITE (2)
                PROSITE (1) -----------------------------------TRYPSI---------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER ----------------------------------------- PROSITE (1)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1ewu A   16 IVGGYTCAANSIPYQVSLNSGSHFCGGSLINSQWVVSAAHCYKSRIQVRLGEHNIDVLEGNEQFINAAKIITHPNFNGNTLDNDIMLIKLSSPATLNSRVATVSLPRSCAAAGTECLISGWGNTKSSGSSYPSLLQCLKAPVLSNSSCKSSYPGQITGNMICVGFLQGGKDSCQGDSGGPVVCNGQLQGIVSWGYGCAQKNKPGVYTKVCNYVNWIQQTIAAN  245
                                    25        37        47        57        67|       78        88        98       108       118      |129||     140       150       160       170       180   |   188       198     ||212    || 222       232       242   
                                             34|                            67|                                                     125|  ||                                                184A 188A              204|     217| |                         
                                              37                             69                                                      127  ||                                                                        209      219 |                         
                                                                                                                                        130|                                                                                  221A                         
                                                                                                                                         132

Chain I from PDB  Type:PROTEIN  Length:30
 aligned with ITR1_MOMCH | P10294 from UniProtKB/Swiss-Prot  Length:30

    Alignment length:30
                                    10        20        30
          ITR1_MOMCH      1 ERRCPRILKQCKRDSDCPGECICMAHGFCG   30
               SCOP domains ------------------------------ SCOP domains
               CATH domains ------------------------------ CATH domains
               Pfam domains ------------------------------ Pfam domains
         Sec.struct. author ...ee.......hhhhh............. Sec.struct. author
                 SAPs(SNPs) ------------------------------ SAPs(SNPs)
                    PROSITE ---SQUASH_INHIBITOR    ------- PROSITE
                 Transcript ------------------------------ Transcript
                1ewu I    1 ERRCPRILKQCKRDSDCPGECICMAHGFCG   30
                                    10        20        30

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 (0, 0)

CATH Domains (0, 0)

Pfam Domains (0, 0)

Gene Ontology (14, 15)

Theoretical Model(hide GO term definitions)

Chain A (TRYP_PIG | P00761)

molecular function
	GO:0016787	hydrolase activity	Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0008233	peptidase activity	Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
	GO:0004252	serine-type endopeptidase activity	Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
	GO:0008236	serine-type peptidase activity	Catalysis of the hydrolysis of peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
biological process
	GO:0007586	digestion	The whole of the physical, chemical, and biochemical processes carried out by multicellular organisms to break down ingested nutrients into components that may be easily absorbed and directed into metabolism.
	GO:0006508	proteolysis	The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
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.
	GO:0005615	extracellular space	That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.

Chain I (ITR1_MOMCH | P10294)

molecular function
	GO:0004866	endopeptidase inhibitor activity	Stops, prevents or reduces the activity of an endopeptidase, any enzyme that hydrolyzes nonterminal peptide bonds in polypeptides.
	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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