1CSO - JenaLib

Title :   CRYSTAL STRUCTURE OF THE OMTKY3 P1 VARIANT OMTKY3-ILE18I IN COMPLEX WITH SGPB

Authors :   K. S. Bateman, S. Anderson, W. Lu, M. A. Qasim, M. Laskowski Jr. , M. N. G. James

Date :   18 Aug 99 (Deposition) - 12 Jan 00 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.90

Chains :   Asym./Biol. Unit : E,I

Keywords :   Enzyme-Inhibitor Complex, Beta-Branched P1 Residue, Hydrolase/Hydrolase Inhibitor Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   K. S. Bateman, S. Anderson, W. Lu, M. A. Qasim, M. Laskowski Jr. , M. N. James
Deleterious Effects Of Beta-Branched Residues In The S1 Specificity Pocket Of Streptomyces Griseus Proteinase B (Sgpb): Crystal Structures Of The Turkey Ovomucoid Third Domain Variants Ile18I, Val18I, Thr18I, And Ser18I In Complex With Sgpb.
Protein Sci. V. 9 83 2000
PubMed-ID: 10739250
(for further references see the PDB file header)

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (0, 0)

Sites (0, 0)

SS Bonds (5, 5)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (3, 3)

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
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Chain E from PDB  Type:PROTEIN  Length:185
 aligned with PRTB_STRGR | P00777 from UniProtKB/Swiss-Prot  Length:299

    Alignment length:185
                                   124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294     
          PRTB_STRGR    115 ISGGDAIYSSTGRCSLGFNVRSGSTYYFLTAGHCTDGATTWWANSARTTVLGTTSGSSFPNNDYGIVRYTNTTIPKDGTVGGQDITSAANATVGMAVTRRGSTTGTHSGSVTALNATVNYGGGDVVYGMIRTNVCAEPGDSGGPLYSGTRAIGLTSGGSGNCSSGGTTFFQPVTEALSAYGVSVY  299
               SCOP domains d1csoe_ E: Protease B                                                                                                                                                                     SCOP domains
               CATH domains 1csoE01 E:16-116,E:231-242 Trypsin-like serine proteases                     1csoE02 E:117-230 Trypsin-like serine proteases                                                1csoE01       CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....eee....eee..eeeee..eeeeeehhhhhh...eee.......eeeeeeeee.....eeeeee.........ee..ee..ee.......eeeeee...eeeeeeeeeeeeeee.....eeeeeeee...........eeee..eeeeeeeeeeee...eeeeeeeehhhhhhhhh.ee. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ----------------------------TRYPSI------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (1) --------------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER --------------------------------------- PROSITE (1)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1cso E   16 ISGGDAIYSSTGRCSLGFNVRSGSTYYFLTAGHCTDGATTWWANSARTTVLGTTSGSSFPNNDYGIVRYTNTTIPKDGTVGGQDITSAANATVGMAVTRRGSTTGTHSGSVTALNATVNYGGGDVVYGMIRTNVCAEPGDSGGPLYSGTRAIGLTSGGSGNCSSGGTTFFQPVTEALVAYGVSVY  242
                               ||   34|       48||||    54     || 65  ||    84      |99A       109       119       129       139   ||  161       171       181  ||  |194       208       218       228       237     
                              19|   34|       48A|||          60|    68|           91|||                                         143|                         184|  ||       202|                         235A       
                               29    39        48B||           62     78            93||                                          156                          190  ||        207                                    
                                                48C|                                 94|                                                                         192A|                                               
                                                 48D                                 99A                                                                          192B

Chain I from PDB  Type:PROTEIN  Length:51
 aligned with IOVO_MELGA | P68390 from UniProtKB/Swiss-Prot  Length:185

    Alignment length:51
                                   144       154       164       174       184 
          IOVO_MELGA    135 VDCSEYPKPACTLEYRPLCGSDNKTYGNKCNFCNAVVESNGTLTLSHFGKC  185
               SCOP domains d1csoi_ I: Ovomucoid domains                        SCOP domains
               CATH domains 1csoI00 I:6-56  [code=3.30.60.30, no name defined]  CATH domains
               Pfam domains --------------------------------------------------- Pfam domains
         Sec.struct. author ..........ee.....eee....ee.hhhhhhhhhhhh.....eeee... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------KAZAL_1  PDB: I:16-38  ------------------ PROSITE
                 Transcript --------------------------------------------------- Transcript
                1cso I    6 VDCSEYPKPACTIEYRPLCGSDNKTYGNKCNFCNAVVESNGTLTLSHFGKC   56
                                    15        25        35        45        55

Legend:		→ Mismatch	(orange background)
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		→ 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 (2, 3)

Pfam Domains (0, 0)

Gene Ontology (10, 11)

Asymmetric/Biological Unit(hide GO term definitions)

Chain E (PRTB_STRGR | P00777)

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: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: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.

Chain I (IOVO_MELGA | P68390)

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.
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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	Ligands, Modified Residues, Ions
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	Cis Peptide Bonds
		Phe E:94 - Pro E:99A	[ RasMol ]
		Tyr I:11 - Pro I:12	[ RasMol ]

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