1D0D - JenaLib

Title :   CRYSTAL STRUCTURE OF TICK ANTICOAGULANT PROTEIN COMPLEXED WITH BOVINE PANCREATIC TRYPSIN INHIBITOR

Authors :   R. St. Charles, K. Padmanabhan, R. V. Arni, K. P. Padmanabhan, A. Tulin

Date :   09 Sep 99 (Deposition) - 09 Sep 00 (Release) - 01 Feb 17 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.62

Chains :   Asym./Biol. Unit : A,B

Keywords :   Factor Xa Inhibitor, Kunitz Inhibitor, Blood Clotting Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   R. St. Charles, K. Padmanabhan, R. V. Arni, K. P. Padmanabhan, A. Tulinsky
Structure Of Tick Anticoagulant Peptide At 1. 6 A Resolution Complexed With Bovine Pancreatic Trypsin Inhibitor.
Protein Sci. V. 9 265 2000
PubMed-ID: 10716178

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (1, 3)

Sites (3, 3)

SS Bonds (6, 6)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (2, 2)

Exons (0, 0)

Sequences/Alignments

Asymmetric/Biological 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
	(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:60
 aligned with TAP_ORNMO | P17726 from UniProtKB/Swiss-Prot  Length:60

    Alignment length:60
                                    10        20        30        40        50        60
             TAP_ORNMO    1 YNRLCIKPRDWIDECDSNEGGERAYFRNGKGGCDSFWICPEDHTGADYYSSYRDCFNACI 60
               SCOP domains d1d0da_ A: Anticoagulant protein, factor Xa inhibitor        SCOP domains
               CATH domains 1d0dA00 A:1-60 Factor Xa Inhibitor                           CATH domains
               Pfam domains ------------------------------------------------------------ Pfam domains
         Sec.struct. author .hhhhh.........hhhhh.eeeeee.....eeeeee............hhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------ Transcript
                  1d0d A  1 YNRLCIKPRDWIDECDSNEGGERAYFRNGKGGCDSFWICPEDHTGADYYSSYRDCFNACI 60
                                    10        20        30        40        50        60

Chain B 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 d1d0db_ B: Pancreatic trypsin inhibitor, BPTI              SCOP domains
               CATH domains 1d0dB00 B: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: B:5-55 UniProt: 40-90          --- PROSITE (1)
                PROSITE (2) --------------------------------BPTI_KUNITZ_1      ------- PROSITE (2)
                 Transcript ---------------------------------------------------------- Transcript
                  1d0d B  1 RPDFCLEPPYTGPCKARIIRYFYNAKAGLCQTFVYGGCRAKRNNFKSAEDCMRTCGGA 58
                                    10        20        30        40        50

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 (2, 2)

CATH Domains (1, 2)

Pfam Domains (0, 0)

Gene Ontology (9, 13)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (TAP_ORNMO | P17726)

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: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.

Chain 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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Description