1EYL - JenaLib

Title :   STRUCTURE OF A RECOMBINANT WINGED BEAN CHYMOTRYPSIN INHIBITOR

Authors :   J. K. Dattagupta, C. Chakrabarti, S. Ravichandran, S. Ghosh

Date :   07 May 00 (Deposition) - 24 May 00 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.90

Chains :   Asym. Unit : A
Biol. Unit 1: A  (1x)
Biol. Unit 2: A  (2x)
Biol. Unit 3: A  (2x)

Keywords :   Beta Trefoil, Hydrolase Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   S. Ravichandran, J. Dasgupta, C. Chakrabarti, S. Ghosh, M. Singh, J. K. Dattagupta
The Role Of Asn14 In The Stability And Conformation Of The Reactive-Site Loop Of Winged Bean Chymotrypsin Inhibitor: Crystal Structures Of Two Point Mutants Asn14-->Lys And Asn14-->Asp.
Protein Eng. V. 14 349 2001
PubMed-ID: 11438758 | Reference-DOI: 10.1093/PROTEIN/14.5.349
(for further references see the PDB file header)

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 5)

Sites (5, 5)

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	HIS A:26 , SER A:128 , HOH A:380	BINDING SITE FOR RESIDUE SO4 A 900
2	AC2	SOFTWARE	SER A:69 , LEU A:70 , SER A:91 , TRP A:93 , LYS A:111 , HOH A:231 , HOH A:321 , HOH A:323 , HOH A:373	BINDING SITE FOR RESIDUE SO4 A 901
3	AC3	SOFTWARE	PRO A:25 , HIS A:26 , ILE A:27 , HIS A:30 , ARG A:50 , HIS A:127 , LEU A:171 , GLU A:172 , HOH A:377	BINDING SITE FOR RESIDUE SO4 A 902
4	AC4	SOFTWARE	ASP A:156 , ARG A:157 , HOH A:354	BINDING SITE FOR RESIDUE SO4 A 903
5	AC5	SOFTWARE	HIS A:30 , SER A:126 , HIS A:127	BINDING SITE FOR RESIDUE SO4 A 904

SS Bonds (2, 2)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 1)

Asymmetric Unit (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SOYBEAN_KUNITZ	PS00283	Soybean trypsin inhibitor (Kunitz) protease inhibitors family signature.	ICW3_PSOTE	28-44	1	A:7-23

Biological Unit 1 (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SOYBEAN_KUNITZ	PS00283	Soybean trypsin inhibitor (Kunitz) protease inhibitors family signature.	ICW3_PSOTE	28-44	1	A:7-23

Biological Unit 2 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SOYBEAN_KUNITZ	PS00283	Soybean trypsin inhibitor (Kunitz) protease inhibitors family signature.	ICW3_PSOTE	28-44	2	A:7-23

Biological Unit 3 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SOYBEAN_KUNITZ	PS00283	Soybean trypsin inhibitor (Kunitz) protease inhibitors family signature.	ICW3_PSOTE	28-44	2	A:7-23

Exons (0, 0)

Sequences/Alignments

Asymmetric 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
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Chain A from PDB  Type:PROTEIN  Length:179
 aligned with ICW3_PSOTE | P10822 from UniProtKB/Swiss-Prot  Length:207

    Alignment length:179
                                    32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192         
           ICW3_PSOTE    23 TADDDLVDAEGNLVENGGTYYLLPHIWAHGGGIETAKTGNEPCPLTVVRSPNEVSKGEPIRISSQFLSLFIPRGSLVALGFANPPSCAASPWWTVVDSPQGPAVKLSQQKLPEKDILVFKFEKVSHSNIHVYKLLYCQHDEEDVKCDQYIGIHRDRNGNRRLVVTEENPLELVLLKAKS 201
               SCOP domains d1eyla_ A: chymotrypsin inhibitor WCI                                                                                                                                               SCOP domains
               CATH domains 1eylA00 A:2-180  [code=2.80.10.50, no name defined]                                                                                                                                 CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..................eeeeee.hhhhh..eeee.........eeee..........eeeee............eeeee..............................hhhhh..eeeee........eeeeeeee....eeeeeeeeeee.....eeeeee.....eeeeee... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----SOYBEAN_KUNITZ   ------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1eyl A   2 EFDDDLVDAEGNLVENGGTYYLLPHIWAHGGGIETAKTGNEPCPLTVVRSPNEVSKGEPIRISSQFLSLFIPRGSLVALGFANPPSCAASPWWTVVDSPQGPAVKLSQQKLPEKDILVFKFEKVSHSNIHVYKLLYCQHDEEDVKCDQYIGIHRDRNGNRRLVVTEENPLELVLLKAKS 180
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171

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	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (1, 1)

Pfam Domains (0, 0)

Gene Ontology (5, 5)

Asymmetric Unit(hide GO term definitions)

Chain A (ICW3_PSOTE | P10822)

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.

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