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Title :   ENHANCEMENT OF CATALYTIC EFFICIENCY OF PROTEINASE K THROUGH EXPOSURE TO ANHYDROUS ORGANIC SOLVENT AT 70 DEGREES CELSIUS

Authors :   M. N. Gupta, R. Tyagi, S. Sharma, S. Karthikeyan, T. P. Singh

Date :   20 May 99 (Deposition) - 27 May 99 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.20

Chains :   Asym./Biol. Unit : A

Keywords :   Proteinase K, Crystal Structure, Anhydrous Organic Solvents, Stability, Enhanced Activity, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   M. N. Gupta, R. Tyagi, S. Sharma, S. Karthikeyan, T. P. Singh
Enhancement Of Catalytic Efficiency Of Enzymes Through Exposure To Anhydrous Organic Solvent At 70 Degrees C. Three-Dimensional Structure Of A Treated Serine Proteinase At 2. 2 A Resolution.
Proteins V. 39 226 2000
PubMed-ID: 10737944 | Reference-DOI: 10.1002/(SICI)1097-0134(20000515)39:3<226::AID-PROT 50>3.0.CO;2-Y
(for further references see the PDB file header)

Molecule 1 - PROTEIN (PROTEINASE K)
	Chains	:	A
	EC Number	:	3.4.21.64
	Organism Scientific	:	ENGYODONTIUM ALBUM
	Organism Taxid	:	37998
	Strain	:	LIMBER

		1
Asymmetric/Biological Unit	:	A

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (2, 5)

No.	Name	Count	Type	Full Name
1	CA	2	Ligand/Ion	CALCIUM ION
2	CCN	3	Ligand/Ion	ACETONITRILE

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	PRO A:175 , VAL A:177 , ASP A:200 , HOH A:501 , HOH A:502 , HOH A:503 , HOH A:504	BINDING SITE FOR RESIDUE CA A 280
2	AC2	SOFTWARE	THR A:16 , ASP A:260 , HOH A:505 , HOH A:506	BINDING SITE FOR RESIDUE CA A 281
3	AC3	SOFTWARE	GLY A:134 , CCN A:302 , HOH A:576	BINDING SITE FOR RESIDUE CCN A 301
4	AC4	SOFTWARE	SER A:224 , CCN A:301 , HOH A:642	BINDING SITE FOR RESIDUE CCN A 302
5	AC5	SOFTWARE	ASN A:67 , HOH A:629	BINDING SITE FOR RESIDUE CCN A 303

Asymmetric/Biological Unit

No.	Residues
1	A:34	-	A:123
2	A:178	-	A:249

(no "Cis Peptide Bond" information available for 1CNM)

(no "SAP(SNP)/Variant" information available for 1CNM)

Asymmetric/Biological Unit (3, 3)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SUBTILASE_ASP	PS00136	Serine proteases, subtilase family, aspartic acid active site.	PRTK_PARAQ	140-151	1	A:35-46
2	SUBTILASE_HIS	PS00137	Serine proteases, subtilase family, histidine active site.	PRTK_PARAQ	174-184	1	A:69-79
3	SUBTILASE_SER	PS00138	Serine proteases, subtilase family, serine active site.	PRTK_PARAQ	327-337	1	A:222-232

(no "Exon" information available for 1CNM)

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:279
 aligned with PRTK_PARAQ | P06873 from UniProtKB/Swiss-Prot  Length:384

    Alignment length:279
                                   115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355       365       375         
           PRTK_PARAQ   106 AAQTNAPWGLARISSTSPGTSTYYYDESAGQGSCVYVIDTGIEASHPEFEGRAQMVKTYYYSSRDGNGHGTHCAGTVGSRTYGVAKKTQLFGVKVLDDNGSGQYSTIIAGMDFVASDKNNRNCPKGVVASLSLGGGYSSSVNSAAARLQSSGVMVAVAAGNNNADARNYSPASEPSVCTVGASDRYDRRSSFSNYGSVLDIFGPGTSILSTWIGGSTRSISGTSMATPHVAGLAAYLMTLGKTTAASACRYIADTANKGDLSNIPFGTVNLLAYNNYQA 384
               SCOP domains d1cnma_ A: Proteinase K                                                                                                                                                                                                                                                                 SCOP domains
               CATH domains 1cnmA00 A:1-279  [code=3.40.50.200, no name defined]                                                                                                                                                                                                                                    CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......hhhhhhh..................eeeeeee.......hhh...eeeeee..........hhhhhhhhhh..........eeeeee.........hhhhhhhhhhhhhhhhh.....eeeeee.......hhhhhhhhhhhhhh.eeeee.......hhh.........eeeeee.................eeee...eeeee...eeeee..hhhhhhhhhhhhhhhhhh.......hhhhhhhh........................ Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------SUBTILASE_AS----------------------SUBTILASE_H----------------------------------------------------------------------------------------------------------------------------------------------SUBTILASE_S----------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1cnm A   1 AAQTNAPWGLARISSTSPGTSTYYYDESAGQGSCVYVIDTGIEASHPEFEGRAQMVKTYYYSSRDGNGHGTHCAGTVGSRTYGVAKKTQLFGVKVLDDNGSGQYSTIIAGMDFVASDKNNRNCPKGVVASLSLGGGYSSSVNSAAARLQSSGVMVAVAAGNNNADARNYSPASEPSVCTVGASDRYDRRSSFSNYGSVLDIFGPGTSILSTWIGGSTRSISGTSMATPHVAGLAAYLMTLGKTTAASACRYIADTANKGDLSNIPFGTVNLLAYNNYQA 279
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270

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 '\|'

Asymmetric/Biological Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: Alpha and beta proteins (a/b) (23833)

Fold: Subtilisin-like (227)

Superfamily: Subtilisin-like (227)

Family: Subtilases (190)

Protein domain: Proteinase K (21)

Fungus (Tritirachium album), strain limber [TaxId: 37998] (21)

d1cnma_

Asymmetric/Biological Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 3-Layer(aba) Sandwich (12045)

Topology: Rossmann fold (7312)

Homologous Superfamily: [code=3.40.50.200, no name defined] (198)

Engyodontium album. Organism_taxid: 37998. Strain: limber (2)

1cnmA00

A:1-279

(no "Pfam Domain" information available for 1CNM)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (PRTK_PARAQ | P06873)

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:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	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.

Asymmetric/Biological Unit
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Description

Compounds

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Ligands, Modified Residues, Ions (2, 5)

Sites (5, 5)

SS Bonds (2, 2)

Cis Peptide Bonds (0, 0)

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