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(-) Description

Authors :  M. Debela, P. Hess, V. Magdolen, N. M. Schechter, W. Bode, P Goettig
Date :  11 Aug 07  (Deposition) - 08 Jan 08  (Release) - 24 Feb 09  (Revision)
Resolution :  1.00
Chains :  Asym./Biol. Unit :  A
Keywords :  S1 Pocket, Chloromethyl Ketone, Alternate Conformations, Alternative Splicing, Glycoprotein, Hydrolase, Protease, Secreted, Serine Protease, Zymogen (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  M. Debela, P. Hess, V. Magdolen, N. M. Schechter, T. Steiner, R. Huber, W. Bode, P. Goettig
Chymotryptic Specificity Determinants In The 1. 0 A Structure Of The Zinc-Inhibited Human Tissue Kallikrein 7.
Proc. Natl. Acad. Sci. Usa V. 104 16086 2007
PubMed-ID: 17909180  |  Reference-DOI: 10.1073/PNAS.0707811104
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - KALLIKREIN-7
    EC Number3.4.21.117
    Expression System CommonFALL ARMYWORM
    Expression System StrainSF9
    Expression System Taxid7108
    Expression System Vector TypeBACULOVIRUS
    GeneKLK7, PRSS6, SCCE
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606

 Structural Features

(-) Chains, Units

Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
1AC1SOFTWAREHIS A:57 , ALA A:190 , CYS A:191 , ASN A:192 , GLY A:193 , SER A:195 , SER A:214 , TRP A:215 , GLY A:216 , THR A:217 , PHE A:218 , CYS A:220 , GLN A:221 , HOH A:627 , HOH A:653 , HOH A:692 , HOH A:700 , HOH A:722BINDING SITE FOR RESIDUE K7J A 300

(-) SS Bonds  (6, 6)

Asymmetric/Biological Unit
1A:22 -A:157
2A:42 -A:58
3A:128 -A:232
4A:136 -A:201
5A:168 -A:182
6A:191 -A:220

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
1Ser A:146 -Pro A:147
2Phe A:218 -Pro A:219

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2QXI)

(-) PROSITE Motifs  (3, 3)

Asymmetric/Biological Unit (3, 3)
1TRYPSIN_DOMPS50240 Serine proteases, trypsin domain profile.KLK7_HUMAN30-250  1A:16-243
2TRYPSIN_HISPS00134 Serine proteases, trypsin family, histidine active site.KLK7_HUMAN66-71  1A:53-58
3TRYPSIN_SERPS00135 Serine proteases, trypsin family, serine active site.KLK7_HUMAN199-210  1A:189-200

(-) Exons   (4, 4)

Asymmetric/Biological Unit (4, 4)
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.4ENST000003918074ENSE00001123413chr19:51485170-51485023148KLK7_HUMAN25-74501A:16-61 (gaps)46
1.5ENST000003918075ENSE00001621367chr19:51483743-51483496248KLK7_HUMAN74-157841A:61-149 (gaps)89
1.7bENST000003918077bENSE00001261960chr19:51480947-514797291219KLK7_HUMAN203-253511A:193-246 (gaps)55

(-) 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:224
 aligned with KLK7_HUMAN | P49862 from UniProtKB/Swiss-Prot  Length:253

    Alignment length:224
                                    39        49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       219       229       239       249    
               SCOP domains d2qxia_ A: automated matches                                                                                                                                                                                                     SCOP domains
               CATH domains 2qxiA01     2qxiA02 A:28-120,A:235-246 Trypsin-like serine proteases                                 2qxiA01 A:16-27,A:121-234 Trypsin-like serine proteases                                                        2qxiA02      CATH domains
               Pfam domains Trypsin-2qxiA01 A:16-238                                                                                                                                                                                                -------- Pfam domains
         Sec.struct. author Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) TRYPSIN_DOM  PDB: A:16-243 UniProt: 30-250                                                                                                                                                                                   --- PROSITE (1)
                PROSITE (2) ------------------------------------TRYPSI-------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER ------------------------------------------- PROSITE (2)
           Transcript 1 (1) Exon 1.4  PDB: A:16-61 (gaps) UniProt: 25-74 ----------------------------------------------------------------------------------Exon 1.6  PDB: A:149-192 UniProt: 157-202     Exon 1.7b  PDB: A:193-246 (gaps) UniProt: 203-253   Transcript 1 (1)
           Transcript 1 (2) --------------------------------------------Exon 1.5  PDB: A:61-149 (gaps) UniProt: 74-157                                      ------------------------------------------------------------------------------------------------ Transcript 1 (2)
                                    25        35||      46        56        66||      77      ||89        99       109       119     ||130|      141       151       161       171       181     ||189       199   ||  213       222       232       242    
                                               36|                           67|             84|                                   125|  ||                                                   186A|              203|         220A                          
                                                38                            69              87                                    127  ||                                                    186B               208                                       

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  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  (1, 1)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 2)

Asymmetric/Biological Unit
Class: Mainly Beta (13760)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit

(-) Gene Ontology  (12, 12)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (KLK7_HUMAN | P49862)
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:0004222    metalloendopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a mechanism in which water acts as a nucleophile, one or two metal ions hold the water molecule in place, and charged amino acid side chains are ligands for the metal ions.
    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:0008544    epidermis development    The process whose specific outcome is the progression of the epidermis over time, from its formation to the mature structure. The epidermis is the outer epithelial layer of an animal, it may be a single layer that produces an extracellular material (e.g. the cuticle of arthropods) or a complex stratified squamous epithelium, as in the case of many vertebrate species.
    GO:0022617    extracellular matrix disassembly    A process that results in the breakdown of the extracellular matrix.
    GO:0002803    positive regulation of antibacterial peptide production    Any process that activates or increases the frequency, rate, or extent of antibacterial peptide production.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
cellular component
    GO:0097209    epidermal lamellar body    A specialized secretory organelle found in keratinocytes and involved in the formation of an impermeable, lipid-containing membrane that serves as a water barrier and is required for correct skin barrier function.
    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.
    GO:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.


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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

        KLK7_HUMAN | P498622qxg 2qxh 2qxj 3bsq 5fah

(-) Related Entries Specified in the PDB File

2qxg 2qxh 2qxj