1A0J - JenaLib

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Asymmetric Unit (Jmol Viewer)

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Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Title :   CRYSTAL STRUCTURE OF A NON-PSYCHROPHILIC TRYPSIN FROM A COLD-ADAPTED FISH SPECIES.

Authors :   H. -K. Schroeder, N. P. Willassen, A. O. Smalaas

Date :   01 Dec 97 (Deposition) - 13 Jan 99 (Release) - 13 Jul 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.70

Chains :   Asym. Unit : A,B,C,D
Biol. Unit 1: A,B,C,D  (1x)
Biol. Unit 2: A (1x),B (1x),C (1x),D (1x)

Keywords :   Serine Proteinase, Trypsin, Hydrolase, Serine Protease (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   H. K. Schroder, N. P. Willassen, A. O. Smalas
Structure Of A Non-Psychrophilic Trypsin From A Cold-Adapte Fish Species.
Acta Crystallogr. , Sect. D V. 54 780 1998
PubMed-ID: 9757092 | Reference-DOI: 10.1107/S0907444997018611

Molecule 1 - TRYPSIN
	Chains	:	A, B, C, D
	EC Number	:	3.4.21.4
	Organ	:	PANCREAS
	Organism Common	:	ATLANTIC SALMON
	Organism Scientific	:	SALMO SALAR
	Organism Taxid	:	8030
	Other Details	:	BENZAMIDINE INHIBITOR IN THE ACTIVE SITE. THE AMINO ACID NUMBERING SCHEME USED IS ADOPTED FROM CHYMOTRYPSINOGEN.

		1	2	3	4
Asymmetric Unit	:	A	B	C	D
Biological Unit 1 (1x)	:	A	B	C	D
Biological Unit 2 (1x)	:	A (1x)	B (1x)	C (1x)	D (1x)

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (3, 15)

No.	Name	Count	Type	Full Name
1	BEN	4	Ligand/Ion	BENZAMIDINE
2	CA	1	Ligand/Ion	CALCIUM ION
3	SO4	10	Ligand/Ion	SULFATE ION

Biological Unit 1 (2, 14)

No.	Name	Count	Type	Full Name
1	BEN	4	Ligand/Ion	BENZAMIDINE
2	CA	-1	Ligand/Ion	CALCIUM ION
3	SO4	10	Ligand/Ion	SULFATE ION

Biological Unit 2 (0, 0)

No.	Name	Count	Type	Full Name
1	BEN	-1	Ligand/Ion	BENZAMIDINE
2	CA	-1	Ligand/Ion	CALCIUM ION
3	SO4	-1	Ligand/Ion	SULFATE ION

Asymmetric Unit (15, 15)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	GLU A:70 , ASN A:72 , VAL A:75 , GLU A:77 , GLU A:80	BINDING SITE FOR RESIDUE CA A 247
02	AC2	SOFTWARE	HIS A:40 , HIS A:57 , GLN A:192 , GLY A:193 , SER A:195	BINDING SITE FOR RESIDUE SO4 A 248
03	AC3	SOFTWARE	PRO A:152 , ASP A:153 , THR A:154 , ARG A:156	BINDING SITE FOR RESIDUE SO4 A 249
04	AC4	SOFTWARE	HIS B:57 , GLN B:192 , GLY B:193 , SER B:195 , BEN B:246 , HOH B:323	BINDING SITE FOR RESIDUE SO4 B 248
05	AC5	SOFTWARE	PRO B:152 , ASP B:153 , THR B:154 , ARG B:156	BINDING SITE FOR RESIDUE SO4 B 249
06	AC6	SOFTWARE	HIS C:57 , GLN C:192 , GLY C:193 , SER C:195 , BEN C:246 , HOH C:614	BINDING SITE FOR RESIDUE SO4 C 248
07	AC7	SOFTWARE	GLU C:21 , PRO C:152 , ASP C:153 , THR C:154 , ARG C:156	BINDING SITE FOR RESIDUE SO4 C 249
08	AC8	SOFTWARE	TYR A:39 , HIS D:57 , GLN D:192 , GLY D:193 , SER D:195 , BEN D:246	BINDING SITE FOR RESIDUE SO4 D 248
09	AC9	SOFTWARE	ASN A:76 , ARG B:235 , PRO D:152 , ASP D:153 , THR D:154 , ARG D:156	BINDING SITE FOR RESIDUE SO4 D 249
10	BC1	SOFTWARE	SER A:148 , SER A:149 , ASN C:95 , ARG C:97 , ARG D:62 , HOH D:490	BINDING SITE FOR RESIDUE SO4 D 250
11	BC2	SOFTWARE	SER C:96 , LYS D:60 , SER D:61 , HOH D:474 , HOH D:503	BINDING SITE FOR RESIDUE SO4 D 251
12	BC3	SOFTWARE	ASP A:189 , SER A:190 , SER A:195 , GLY A:219 , CYS A:220 , GLY A:226	BINDING SITE FOR RESIDUE BEN A 246
13	BC4	SOFTWARE	ASP B:189 , SER B:190 , SER B:195 , GLY B:219 , GLY B:226 , SO4 B:248	BINDING SITE FOR RESIDUE BEN B 246
14	BC5	SOFTWARE	ASP C:189 , SER C:190 , CYS C:191 , SER C:195 , GLY C:219 , GLY C:226 , SO4 C:248 , HOH C:312	BINDING SITE FOR RESIDUE BEN C 246
15	BC6	SOFTWARE	ASP D:189 , SER D:190 , CYS D:191 , SER D:195 , GLY D:219 , GLY D:226 , SO4 D:248	BINDING SITE FOR RESIDUE BEN D 246

Asymmetric Unit

No.	Residues
1	A:22	-	A:157
2	A:42	-	A:58
3	A:128	-	A:232
4	A:136	-	A:201
5	A:168	-	A:182
6	A:191	-	A:220
7	B:22	-	B:157
8	B:42	-	B:58
9	B:128	-	B:232
10	B:136	-	B:201
11	B:168	-	B:182
12	B:191	-	B:220
13	C:22	-	C:157
14	C:42	-	C:58
15	C:128	-	C:232
16	C:136	-	C:201
17	C:168	-	C:182
18	C:191	-	C:220
19	D:22	-	D:157
20	D:42	-	D:58
21	D:128	-	D:232
22	D:136	-	D:201
23	D:168	-	D:182
24	D:191	-	D:220

(no "Cis Peptide Bond" information available for 1A0J)

(no "SAP(SNP)/Variant" information available for 1A0J)

Asymmetric Unit (3, 12)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	TRYPSIN_DOM	PS50240	Serine proteases, trypsin domain profile.	TRY3_SALSA	16-236	4	A:16-243 B:16-243 C:16-243 D:16-243
2	TRYPSIN_HIS	PS00134	Serine proteases, trypsin family, histidine active site.	TRY3_SALSA	51-56	4	A:53-58 B:53-58 C:53-58 D:53-58
3	TRYPSIN_SER	PS00135	Serine proteases, trypsin family, serine active site.	TRY3_SALSA	186-197	4	A:189-200 B:189-200 C:189-200 D:189-200

Biological Unit 1 (3, 12)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	TRYPSIN_DOM	PS50240	Serine proteases, trypsin domain profile.	TRY3_SALSA	16-236	4	A:16-243 B:16-243 C:16-243 D:16-243
2	TRYPSIN_HIS	PS00134	Serine proteases, trypsin family, histidine active site.	TRY3_SALSA	51-56	4	A:53-58 B:53-58 C:53-58 D:53-58
3	TRYPSIN_SER	PS00135	Serine proteases, trypsin family, serine active site.	TRY3_SALSA	186-197	4	A:189-200 B:189-200 C:189-200 D:189-200

Biological Unit 2 (3, 12)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	TRYPSIN_DOM	PS50240	Serine proteases, trypsin domain profile.	TRY3_SALSA	16-236	4	A:16-243 B:16-243 C:16-243 D:16-243
2	TRYPSIN_HIS	PS00134	Serine proteases, trypsin family, histidine active site.	TRY3_SALSA	51-56	4	A:53-58 B:53-58 C:53-58 D:53-58
3	TRYPSIN_SER	PS00135	Serine proteases, trypsin family, serine active site.	TRY3_SALSA	186-197	4	A:189-200 B:189-200 C:189-200 D:189-200

(no "Exon" information available for 1A0J)

Asymmetric 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:223
 aligned with TRY3_SALSA | P35033 from UniProtKB/Swiss-Prot  Length:238

    Alignment length:223
                                    25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235   
          TRY3_SALSA     16 IVGGYECRKNSASYQASLQSGYHFCGGSLISSTWVVSAAHCYKSRIQVRLGEHNIAVNEGTEQFIDSVKVIMHPSYNSRNLDNDIMLIKLSKPASLNSYVSTVALPSSCASSGTRCLVSGWGNLSGSSSNYPDTLRCLDLPILSSSSCNSAYPGQITSNMFCAGFMEGGKDSCQGDSGGPVVCNGQLQGVVSWGYGCAQRNKPGVYTKVCNYRSWISSTMSSN  238
               SCOP domains d1a0ja_ A: Trypsin(ogen)                                                                                                                                                                                                        SCOP domains
               CATH domains 1a0jA01     1a0jA02 A:28-120,A:233-245 Trypsin-like serine proteases                                  1a0jA01 A:16-27,A:121-232 Trypsin-like serine proteases                                                     1a0jA02       CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............eeeeee..eeeeee.....eeee.hhh.....eeee............eeeeeeeeee.............eeeee........................eeeeee...............eeeeee...hhhhhhh........eeee................eeee..eeeeeeee..........eeeeehhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) TRYPSIN_DOM  PDB: A:16-243 UniProt: 16-236                                                                                                                                                                                   -- PROSITE (1)
                PROSITE (2) -----------------------------------TRYPSI---------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER ----------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1a0j A   16 IVGGYECRKNSASYQASLQSGYHFCGGSLISSTWVVSAAHCYKSRIQVRLGEHNIAVNEGTEQFIDSVKVIMHPSYNSRNLDNDIMLIKLSKPASLNSYVSTVALPSSCASSGTRCLVSGWGNLSGSSSNYPDTLRCLDLPILSSSSCNSAYPGQITSNMFCAGFMEGGKDSCQGDSGGPVVCNGQLQGVVSWGYGCAQRNKPGVYTKVCNYRSWISSTMSSN  245
                                    25        37        47        57        67|       78        88        98       108       118      |129||     140       150       160       170       180    | 188A       198     ||212    || 222       232       242   
                                             34|                            67|                                                     125|  ||                                                 184A 188A             204|     217|  |                        
                                              37                             69                                                      127  ||                                                                        209      219  |                        
                                                                                                                                        130|                                                                                   221A                        
                                                                                                                                         132

Chain B from PDB  Type:PROTEIN  Length:223
 aligned with TRY3_SALSA | P35033 from UniProtKB/Swiss-Prot  Length:238

    Alignment length:223
                                    25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235   
          TRY3_SALSA     16 IVGGYECRKNSASYQASLQSGYHFCGGSLISSTWVVSAAHCYKSRIQVRLGEHNIAVNEGTEQFIDSVKVIMHPSYNSRNLDNDIMLIKLSKPASLNSYVSTVALPSSCASSGTRCLVSGWGNLSGSSSNYPDTLRCLDLPILSSSSCNSAYPGQITSNMFCAGFMEGGKDSCQGDSGGPVVCNGQLQGVVSWGYGCAQRNKPGVYTKVCNYRSWISSTMSSN  238
               SCOP domains d1a0jb_ B: Trypsin(ogen)                                                                                                                                                                                                        SCOP domains
               CATH domains 1a0jB01     1a0jB02 B:28-120,B:233-245 Trypsin-like serine proteases                                  1a0jB01 B:16-27,B:121-232 Trypsin-like serine proteases                                                     1a0jB02       CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............eeeeee.eeeeeeeeee..eeee.hhh.....eeee............eeeeeeeeee.............eeeee........................eeeeee...............eeeeee...hhhhhhh........eeee................eeee..eeeeeeee..........eeeeehhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) TRYPSIN_DOM  PDB: B:16-243 UniProt: 16-236                                                                                                                                                                                   -- PROSITE (1)
                PROSITE (2) -----------------------------------TRYPSI---------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER ----------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1a0j B   16 IVGGYECRKNSASYQASLQSGYHFCGGSLISSTWVVSAAHCYKSRIQVRLGEHNIAVNEGTEQFIDSVKVIMHPSYNSRNLDNDIMLIKLSKPASLNSYVSTVALPSSCASSGTRCLVSGWGNLSGSSSNYPDTLRCLDLPILSSSSCNSAYPGQITSNMFCAGFMEGGKDSCQGDSGGPVVCNGQLQGVVSWGYGCAQRNKPGVYTKVCNYRSWISSTMSSN  245
                                    25        37        47        57        67|       78        88        98       108       118      |129||     140       150       160       170       180    | 188A       198     ||212    || 222       232       242   
                                             34|                            67|                                                     125|  ||                                                 184A 188A             204|     217|  |                        
                                              37                             69                                                      127  ||                                                                        209      219  |                        
                                                                                                                                        130|                                                                                   221A                        
                                                                                                                                         132

Chain C from PDB  Type:PROTEIN  Length:223
 aligned with TRY3_SALSA | P35033 from UniProtKB/Swiss-Prot  Length:238

    Alignment length:223
                                    25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235   
          TRY3_SALSA     16 IVGGYECRKNSASYQASLQSGYHFCGGSLISSTWVVSAAHCYKSRIQVRLGEHNIAVNEGTEQFIDSVKVIMHPSYNSRNLDNDIMLIKLSKPASLNSYVSTVALPSSCASSGTRCLVSGWGNLSGSSSNYPDTLRCLDLPILSSSSCNSAYPGQITSNMFCAGFMEGGKDSCQGDSGGPVVCNGQLQGVVSWGYGCAQRNKPGVYTKVCNYRSWISSTMSSN  238
               SCOP domains d1a0jc_ C: Trypsin(ogen)                                                                                                                                                                                                        SCOP domains
               CATH domains 1a0jC01     1a0jC02 C:28-120,C:233-245 Trypsin-like serine proteases                                  1a0jC01 C:16-27,C:121-232 Trypsin-like serine proteases                                                     1a0jC02       CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............eeeeee..eeeeee.....eeee.hhh....eeeee............eeeeeeeeee.............eeeee........................eeeeee...............eeeeee...hhhhhhh........eeee................eeee..eeeeeeee..........eeeeehhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) TRYPSIN_DOM  PDB: C:16-243 UniProt: 16-236                                                                                                                                                                                   -- PROSITE (1)
                PROSITE (2) -----------------------------------TRYPSI---------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER ----------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1a0j C   16 IVGGYECRKNSASYQASLQSGYHFCGGSLISSTWVVSAAHCYKSRIQVRLGEHNIAVNEGTEQFIDSVKVIMHPSYNSRNLDNDIMLIKLSKPASLNSYVSTVALPSSCASSGTRCLVSGWGNLSGSSSNYPDTLRCLDLPILSSSSCNSAYPGQITSNMFCAGFMEGGKDSCQGDSGGPVVCNGQLQGVVSWGYGCAQRNKPGVYTKVCNYRSWISSTMSSN  245
                                    25        37        47        57        67|       78        88        98       108       118      |129||     140       150       160       170       180    | 188A       198     ||212    || 222       232       242   
                                             34|                            67|                                                     125|  ||                                                 184A 188A             204|     217|  |                        
                                              37                             69                                                      127  ||                                                                        209      219  |                        
                                                                                                                                        130|                                                                                   221A                        
                                                                                                                                         132

Chain D from PDB  Type:PROTEIN  Length:223
 aligned with TRY3_SALSA | P35033 from UniProtKB/Swiss-Prot  Length:238

    Alignment length:223
                                    25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235   
          TRY3_SALSA     16 IVGGYECRKNSASYQASLQSGYHFCGGSLISSTWVVSAAHCYKSRIQVRLGEHNIAVNEGTEQFIDSVKVIMHPSYNSRNLDNDIMLIKLSKPASLNSYVSTVALPSSCASSGTRCLVSGWGNLSGSSSNYPDTLRCLDLPILSSSSCNSAYPGQITSNMFCAGFMEGGKDSCQGDSGGPVVCNGQLQGVVSWGYGCAQRNKPGVYTKVCNYRSWISSTMSSN  238
               SCOP domains d1a0jd_ D: Trypsin(ogen)                                                                                                                                                                                                        SCOP domains
               CATH domains 1a0jD01     1a0jD02 D:28-120,D:233-245 Trypsin-like serine proteases                                  1a0jD01 D:16-27,D:121-232 Trypsin-like serine proteases                                                     1a0jD02       CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............eeeeee.eeeeeeeeee..eeee.hhh.....eeee............eeeeeeeeee.............eeeee........................eeeeee...............eeeeee...hhhhhhh........eeee................eeee..eeeeeeee..........eeeeehhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) TRYPSIN_DOM  PDB: D:16-243 UniProt: 16-236                                                                                                                                                                                   -- PROSITE (1)
                PROSITE (2) -----------------------------------TRYPSI---------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER ----------------------------------------- PROSITE (2)
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1a0j D   16 IVGGYECRKNSASYQASLQSGYHFCGGSLISSTWVVSAAHCYKSRIQVRLGEHNIAVNEGTEQFIDSVKVIMHPSYNSRNLDNDIMLIKLSKPASLNSYVSTVALPSSCASSGTRCLVSGWGNLSGSSSNYPDTLRCLDLPILSSSSCNSAYPGQITSNMFCAGFMEGGKDSCQGDSGGPVVCNGQLQGVVSWGYGCAQRNKPGVYTKVCNYRSWISSTMSSN  245
                                    25        37        47        57        67|       78        88        98       108       118      |129||     140       150       160       170       180    | 188A       198     ||212    || 222       232       242   
                                             34|                            67|                                                     125|  ||                                                 184A 188A             204|     217|  |                        
                                              37                             69                                                      127  ||                                                                        209      219  |                        
                                                                                                                                        130|                                                                                   221A                        
                                                                                                                                         132

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 Unit

Classes(

)

Folds(

)

Superfamilies( (-)

)

Families(

)

Protein Domains( (-)

)

Organisms( (-)

)

Class: All beta proteins (24004)

Fold: Trypsin-like serine proteases (1752)

Superfamily: Trypsin-like serine proteases (1752)

Family: Eukaryotic proteases (1343)

Protein domain: Trypsin(ogen) (500)

Atlantic salmon (Salmo salar) [TaxId: 8030] (11)

1a	d1a0ja_	A:
1b	d1a0jb_	B:
1c	d1a0jc_	C:
1d	d1a0jd_	D:

Asymmetric Unit

Classes(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Mainly Beta (13760)

Architecture: Beta Barrel (4804)

Topology: Thrombin, subunit H (1535)

Homologous Superfamily: Trypsin-like serine proteases (1488)

Atlantic salmon (Salmo salar) (12)

1a	1a0jA01	A:16-27,A:121-232
1b	1a0jB01	B:16-27,B:121-232
1c	1a0jC01	C:16-27,C:121-232
1d	1a0jD01	D:16-27,D:121-232
1e	1a0jA02	A:28-120,A:233-245
1f	1a0jB02	B:28-120,B:233-245
1g	1a0jC02	C:28-120,C:233-245
1h	1a0jD02	D:28-120,D:233-245

(no "Pfam Domain" information available for 1A0J)

Asymmetric Unit(hide GO term definitions)

Chain A,B,C,D (TRY3_SALSA | P35033)

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:0007586	digestion	The whole of the physical, chemical, and biochemical processes carried out by multicellular organisms to break down ingested nutrients into components that may be easily absorbed and directed into metabolism.
	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.
	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.

Asymmetric Unit
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	Cis Peptide Bonds
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Access by PDB/NDB ID
	1a0j
		Family and Domain Information	:	ProDom \| SYSTERS
		General Structural Information	:	GlycoscienceDB \| MMDB \| NDB \| OCA \| PDB \| PDBe \| PDBj \| PDBsum \| PDBWiki \| PQS \| PROTEOPEDIA
		Orientation in Membranes	:	OPM
		Protein Surface	:	SURFACE
		Secondary Structure	:	DSSP (structure derived) \| HSSP (homology derived)
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	TRY3_SALSA \| P35033
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	3.4.21.4
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(no "Entries Sharing at Least One Protein Chain" available for 1A0J)

(no "Related Entries Specified in the PDB File" available for 1A0J)

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (3, 15)

Sites (15, 15)

SS Bonds (24, 24)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (3, 12)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (1, 4)

CATH Domains (1, 8)

Pfam Domains (0, 0)

Gene Ontology (9, 9)

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Still Images

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Databases

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Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File