1AAL - JenaLib

Title :   STRUCTURAL EFFECTS INDUCED BY MUTAGENESIS AFFECTED BY CRYSTAL PACKING FACTORS: THE STRUCTURE OF A 30-51 DISULFIDE MUTANT OF BASIC PANCREATIC TRYPSIN INHIBITOR

Authors :   C. Eigenbrot, M. Randal, A. A. Kossiakoff

Date :   09 Apr 92 (Deposition) - 31 Oct 93 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.60

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

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

Reference :   C. Eigenbrot, M. Randal, A. A. Kossiakoff
Structural Effects Induced By Mutagenesis Affected By Crystal Packing Factors: The Structure Of A 30-51 Disulfide Mutant Of Basic Pancreatic Trypsin Inhibitor.
Proteins V. 14 75 1992
PubMed-ID: 1384034 | Reference-DOI: 10.1002/PROT.340140109
(for further references see the PDB file header)

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 1)

Sites (1, 1)

SS Bonds (4, 4)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (2, 4)

Asymmetric Unit (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 B:5-55
2	BPTI_KUNITZ_1	PS00280	Pancreatic trypsin inhibitor (Kunitz) family signature.	BPT1_BOVIN	68-86	2	A:33-50 B:33-50

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:33-50 -

Biological Unit 2 (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	- B:5-55
2	BPTI_KUNITZ_1	PS00280	Pancreatic trypsin inhibitor (Kunitz) family signature.	BPT1_BOVIN	68-86	1	- B:33-50

Exons (0, 0)

Sequences/Alignments

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
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	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 d1aala_ A: Pancreatic trypsin inhibitor, BPTI              SCOP domains
               CATH domains 1aalA00 A:1-58 Factor Xa Inhibitor                         CATH domains
               Pfam domains ---------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhh..........eeeeeee....eeeeeee.........e.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
                  1aal A  1 RPDFCLEPPYTGPCKARIIRYFYNAKAGLVQTFVYGGCRAKRNNFKSAEDAMRTCGGA 58
                                    10        20        30        40        50

Chain B from PDB  Type:PROTEIN  Length:57
 aligned with BPT1_BOVIN | P00974 from UniProtKB/Swiss-Prot  Length:100

    Alignment length:57
                                    45        55        65        75        85       
            BPT1_BOVIN   36 RPDFCLEPPYTGPCKARIIRYFYNAKAGLCQTFVYGGCRAKRNNFKSAEDCMRTCGG 92
               SCOP domains d1aalb_ B: Pancreatic trypsin inhibitor, BPTI             SCOP domains
               CATH domains 1aalB00 B:1-57 Factor Xa Inhibitor                        CATH domains
               Pfam domains --------------------------------------------------------- Pfam domains
         Sec.struct. author .hhhhhh..........eeeeeee....eeeeeee.........e.hhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ----BPTI_KUNITZ_2  PDB: B:5-55 UniProt: 40-90          -- PROSITE (1)
                PROSITE (2) --------------------------------BPTI_KUNITZ_1      ------ PROSITE (2)
                 Transcript --------------------------------------------------------- Transcript
                  1aal B  1 RPDFCLEPPYTGPCKARIIRYFYNAKAGLVQTFVYGGCRAKRNNFKSAEDAMRTCGG 57
                                    10        20        30        40        50

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Classification and Annotation

SCOP Domains (1, 2)

CATH Domains (1, 2)

Pfam Domains (0, 0)

Gene Ontology (9, 9)

Asymmetric Unit(hide GO term definitions)

Chain A,B (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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