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(-) Description

Authors :  S. D. Rader, D. A. Agard
Date :  30 Oct 96  (Deposition) - 01 Apr 97  (Release) - 24 Feb 09  (Revision)
Resolution :  1.50
Chains :  Asym./Biol. Unit :  A
Keywords :  Serine Protease, Low Temperature, Hydrolase, Serine Proteinase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
Reference :  S. D. Rader, D. A. Agard
Conformational Substates In Enzyme Mechanism: The 120 K Structure Of Alpha-Lytic Protease At 1. 5 A Resolution.
Protein Sci. V. 6 1375 1997
PubMed-ID: 9232638
(for further references see the PDB file header)

(-) Compounds

    EC Number3.4.21.12
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Organism Taxid69

 Structural Features

(-) Chains, Units

Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 4)

Asymmetric/Biological Unit (2, 4)
No.NameCountTypeFull Name

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
1AC1SOFTWAREARG A:48A , ARG A:120A , GLN A:237 , TYR A:238 , HOH A:272 , HOH A:273 , HOH A:274 , HOH A:440 , HOH A:441 , HOH A:442 , HOH A:499BINDING SITE FOR RESIDUE SO4 A 2
2AC2SOFTWAREALA A:15A , ASN A:15B , ARG A:230 , PRO A:233 , HOH A:248 , HOH A:323 , HOH A:400 , HOH A:401 , HOH A:460 , HOH A:462BINDING SITE FOR RESIDUE SO4 A 3
3AC3SOFTWARETAM A:1 , HIS A:57 , ARG A:122 , ARG A:192 , GLY A:193 , SER A:195 , HOH A:406 , HOH A:421 , HOH A:422 , HOH A:423 , HOH A:498 , HOH A:544BINDING SITE FOR RESIDUE SO4 A 4
4AC4SOFTWARESO4 A:4 , HIS A:57 , ARG A:122 , TYR A:171 , GLU A:174 , SER A:214 , GLY A:215 , HOH A:339 , HOH A:407 , HOH A:504 , HOH A:519BINDING SITE FOR RESIDUE TAM A 1

(-) SS Bonds  (3, 3)

Asymmetric/Biological Unit
1A:42 -A:58
2A:137 -A:159
3A:189 -A:220A

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
1Phe A:94 -Pro A:95

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
1TRYPSIN_HISPS00134 Serine proteases, trypsin family, histidine active site.PRLA_LYSEN231-236  1A:53-58
2TRYPSIN_SERPS00135 Serine proteases, trypsin family, serine active site.PRLA_LYSEN336-347  1A:189-200

(-) Exons   (0, 0)

(no "Exon" information available for 1TAL)

(-) 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:198
 aligned with PRLA_LYSEN | P00778 from UniProtKB/Swiss-Prot  Length:397

    Alignment length:198
                                   209       219       229       239       249       259       269       279       289       299       309       319       329       339       349       359       369       379       389        
               SCOP domains d1tala_ A: alpha-Lytic protease                                                                                                                                                                        SCOP domains
               CATH domains --1talA01 A:16-119,A:231-236 Trypsin-like serine proteases                  1talA02 A:120-230 Trypsin-like serine proteases                                                            1talA0--------- CATH domains
               Pfam domains --Trypsin-1talA01 A:16-226                                                                                                                                                         ------------------- Pfam domains
         Sec.struct. author .......eeee...eeee..eeeee..eeeeee.hhh.....eeee..eeeeeeeeee.....eeeeee........eeee..eeee...........eeeeee...eeeeee.......eee..eee...eee...........eee.....eeeeeeee............hhh..eeeeehhhhhhh........ Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -------------------------------TRYPSI---------------------------------------------------------------------------------------------------TRYPSIN_SER -------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                            ||   || 34 ||    44A    ||| 51       59B  ||  ||83 || |  |95|      109    ||120C|||||||123 ||    136      |158       168  ||   179     ||192      201A||     215    ||220A  |||  227       237        
                            ||  19|   36|    44A  48A||         59A| 62| 67|  85| | 91|||           114| ||||120I||  125|           143|            171|         185|         201A||         219A||| |  |||                       
                          15A|   31    38          48B|          59B  64  81   87 |  94||            119 |||||120J|   129            156             173          189           202|          219B|| |  |||                       
                           15B                      48C                         88A   95|             120A|||||120K                                                              207           219C| |  |||                       
                                                                                      100              120B|||||                                                                                219D |  |||                       
                                                                                                        120C||||                                                                                  220A  |||                       
                                                                                                         120D|||                                                                                     222A||                       
                                                                                                          120E||                                                                                      222B|                       
                                                                                                           120G|                                                                                       222C                       

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  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  (6, 6)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (PRLA_LYSEN | P00778)
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.


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 Related Entries

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

        PRLA_LYSEN | P007781boq 1gba 1gbb 1gbc 1gbd 1gbe 1gbf 1gbh 1gbi 1gbj 1gbk 1gbl 1gbm 1p01 1p02 1p03 1p04 1p05 1p06 1p09 1p10 1p11 1p12 1qq4 1qrw 1qrx 1ssx 2alp 2h5c 2h5d 2lpr 2pro 2ull 3lpr 3m7t 3m7u 3pro 3qgj 3urc 3urd 3ure 4pro 5lpr 6lpr 7lpr 8lpr 9lpr

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 1TAL)