1G6X - JenaLib

Title :   ULTRA HIGH RESOLUTION STRUCTURE OF BOVINE PANCREATIC TRYPSIN INHIBITOR (BPTI) MUTANT WITH ALTERED BINDING LOOP SEQUENCE

Authors :   A. Addlagatta, H. Czapinska, S. Krzywda, J. Otlewski, M. Jaskolski

Date :   08 Nov 00 (Deposition) - 09 May 01 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   0.86

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

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

Reference :   A. Addlagatta, S. Krzywda, H. Czapinska, J. Otlewski, M. Jaskolski
Ultrahigh-Resolution Structure Of A Bpti Mutant.
Acta Crystallogr. , Sect. D V. 57 649 2001
PubMed-ID: 11320305 | Reference-DOI: 10.1107/S0907444901003468
(for further references see the PDB file header)

Compounds

Molecule 1 - PANCREATIC TRYPSIN INHIBITOR
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PAED4
	Expression System Strain	:	BL21 (DE3) PLYSS
	Expression System Taxid	:	562
	Expression System Vector Type	:	PLASMID
	Mutation	:	YES
	Organism Common	:	CATTLE
	Organism Scientific	:	BOS TAURUS
	Organism Taxid	:	9913
	Synonym	:	BPTI, APROTININ, TRASYLOL, BASIC PROTEASE INHIBITOR

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 10)

Sites (10, 10)

Asymmetric Unit (10, 10)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	GLU A:7 , LYS A:41 , ARG A:42 , HOH A:106 , HOH A:123 , HOH A:135 , HOH A:138 , HOH A:140 , HOH A:160 , HOH A:257 , HOH A:258	BINDING SITE FOR RESIDUE SO4 A 61
02	AC2	SOFTWARE	ARG A:20 , TYR A:35 , GLY A:37 , ALA A:40 , ARG A:53 , HOH A:122 , HOH A:175 , HOH A:206 , HOH A:218 , HOH A:220 , HOH A:221 , HOH A:223	BINDING SITE FOR RESIDUE SO4 A 62
03	AC3	SOFTWARE	ARG A:1 , PRO A:2 , ARG A:42 , HOH A:115 , HOH A:132 , HOH A:167 , HOH A:173 , HOH A:194 , HOH A:259	BINDING SITE FOR RESIDUE SO4 A 63
04	AC4	SOFTWARE	CYS A:14 , ARG A:15 , HOH A:163 , HOH A:250 , HOH A:252 , HOH A:253 , HOH A:254	BINDING SITE FOR RESIDUE SO4 A 64
05	AC5	SOFTWARE	PRO A:2 , ASP A:3 , HOH A:115 , HOH A:194 , HOH A:195	BINDING SITE FOR RESIDUE SO4 A 65
06	AC6	SOFTWARE	CYS A:38 , ARG A:39 , HOH A:122 , HOH A:170 , HOH A:215 , HOH A:221 , HOH A:251	BINDING SITE FOR RESIDUE SO4 A 66
07	AC7	SOFTWARE	ARG A:1 , LYS A:26	BINDING SITE FOR RESIDUE SO4 A 68
08	AC8	SOFTWARE	PRO A:9 , TYR A:10 , ALA A:11 , GLY A:12 , HOH A:168 , HOH A:169 , HOH A:232	BINDING SITE FOR RESIDUE SO4 A 67
09	AC9	SOFTWARE	TYR A:10 , ARG A:39 , ALA A:40 , LYS A:41 , HOH A:123 , HOH A:152 , HOH A:172	BINDING SITE FOR RESIDUE EDO A 81
10	BC1	SOFTWARE	ALA A:25 , LEU A:52 , GLY A:56 , HOH A:200 , HOH A:201	BINDING SITE FOR RESIDUE EDO A 82

SS Bonds (3, 3)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (2, 2)

Asymmetric Unit (2, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	BPTI_KUNITZ_2	PS50279	Pancreatic trypsin inhibitor (Kunitz) family profile.	BPT1_BOVIN	40-90	1	A:5-55
2	BPTI_KUNITZ_1	PS00280	Pancreatic trypsin inhibitor (Kunitz) family signature.	BPT1_BOVIN	68-86	1	A:33-51

Biological Unit 1 (2, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	BPTI_KUNITZ_2	PS50279	Pancreatic trypsin inhibitor (Kunitz) family profile.	BPT1_BOVIN	40-90	1	A:5-55
2	BPTI_KUNITZ_1	PS00280	Pancreatic trypsin inhibitor (Kunitz) family signature.	BPT1_BOVIN	68-86	1	A:33-51

Biological Unit 2 (2, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	BPTI_KUNITZ_2	PS50279	Pancreatic trypsin inhibitor (Kunitz) family profile.	BPT1_BOVIN	40-90	2	A:5-55
2	BPTI_KUNITZ_1	PS00280	Pancreatic trypsin inhibitor (Kunitz) family signature.	BPT1_BOVIN	68-86	2	A:33-51

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

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Chain A from PDB  Type:PROTEIN  Length:58
 aligned with BPT1_BOVIN | P00974 from UniProtKB/Swiss-Prot  Length:100

    Alignment length:58
                                    45        55        65        75        85        
            BPT1_BOVIN   36 RPDFCLEPPYTGPCKARIIRYFYNAKAGLCQTFVYGGCRAKRNNFKSAEDCMRTCGGA 93
               SCOP domains d1g6xa_ A: Pancreatic trypsin inhibitor, BPTI              SCOP domains
               CATH domains 1g6xA00 A:1-58 Factor Xa Inhibitor                         CATH domains
               Pfam domains ---------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhh..........eeeeeee....eeeeeee...........hhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----BPTI_KUNITZ_2  PDB: A:5-55 UniProt: 40-90          --- PROSITE (1)
                PROSITE (2) --------------------------------BPTI_KUNITZ_1      ------- PROSITE (2)
                 Transcript ---------------------------------------------------------- Transcript
                  1g6x A  1 RPDFCLEPPYAGACRARIIRYFYNAKAGLCQTFVYGGCRAKRNNFKSAEDCLRTCGGA 58
                                    10        20        30        40        50

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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 (9, 9)

Asymmetric Unit(hide GO term definitions)

Chain A (BPT1_BOVIN | P00974)

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:0019870	potassium channel inhibitor activity	Stops, prevents, or reduces the activity of a potassium channel.
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
	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.
	GO:0090331	negative regulation of platelet aggregation	Any process that decreases the rate, frequency or extent of platelet aggregation. Platelet aggregation is the adhesion of one platelet to one or more other platelets via adhesion molecules.
	GO:0070495	negative regulation of thrombin-activated receptor signaling pathway	Any process that stops, prevents, or reduces the frequency, rate or extent of thrombin-activated receptor protein signaling pathway activity. A thrombin receptor signaling pathway is the series of molecular signals generated as a consequence of a thrombin-activated receptor binding to one of its physiological ligands.
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

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File

1aal	BOVINE PANCREATIC TRYPSIN INHIBITOR (BPTI, BASIC) MUTANT WITH CYS 30 REPLACED BY VAL AND CYS 51 REPLACED BY ALA
1bpt	BOVINE PANCREATIC TRYPSIN INHIBITOR (BPTI) MUTANT (TYR 23 REPLACED BY ALA)
1bti	BOVINE PANCREATIC TRYPSIN INHIBITOR (BPTI) MUTANT WITH PHE 22 REPLACED BY ALA
1fan	BOVINE PANCREATIC TRYPSIN INHIBITOR (BPTI) MUTANT WITH PHE 45 REPLACED BY ALA
1qlq	BOVINE PANCREATIC TRYPSIN INHIBITOR (BPTI) MUTANT (THR 11 REPLACED BY ALA, PRO 13 REPLACED BY ALA, LYS 15 REPLACED BY ARG, MET 52 REPLACED BY LEU)
4pti	TRYPSIN INHIBITOR
5pti	TRYPSIN INHIBITOR (CRYSTAL FORM II)
6pti	BOVINE PANCREATIC TRYPSIN INHIBITOR (BPTI, CRYSTAL FORM III)
7pti	BOVINE PANCREATIC TRYPSIN INHIBITOR (BPTI) MUTANT (CYS 30 REPLACED BY ALA, CYS 51 REPLACED BY ALA)
8pti	BOVINE PANCREATIC TRYPSIN INHIBITOR (BPTI) MUTANT (TYR 35 REPLACED BY GLY)
9pti	BASIC PANCREATIC TRYPSIN INHIBITOR (MET 52 OXIDIZED)

Description