1PYT - JenaLib

Asym./Biol. Unit (Jmol Viewer)

Asym./Biol. Unit - sites (Jmol Viewer)

Title :   TERNARY COMPLEX OF PROCARBOXYPEPTIDASE A, PROPROTEINASE E, AND CHYMOTRYPSINOGEN C

Authors :   F. X. Gomis-Ruth, M. Gomez, W. Bode, R. Huber, F. X. Aviles

Date :   21 Jun 95 (Deposition) - 27 Jan 97 (Release) - 24 Feb 09 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   2.35

Chains :   Asym./Biol. Unit : A,B,C,D

Keywords :   Ternary Complex (Zymogen), Serine Proteinase, C-Terminal Peptidase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   F. X. Gomis-Ruth, M. Gomez, W. Bode, R. Huber, F. X. Aviles
The Three-Dimensional Structure Of The Native Ternary Complex Of Bovine Pancreatic Procarboxypeptidase A With Proproteinase E And Chymotrypsinogen C.
Embo J. V. 14 4387 1995
PubMed-ID: 7556081
(for further references see the PDB file header)

Molecule 1 - PROCARBOXYPEPTIDASE A
	Chains	:	A
	EC Number	:	3.4.17.1
	Organ	:	PANCREAS
	Organism Common	:	CATTLE
	Organism Scientific	:	BOS TAURUS
	Organism Taxid	:	9913

Molecule 2 - PROCARBOXYPEPTIDASE A
	Chains	:	B
	EC Number	:	3.4.17.1
	Organ	:	PANCREAS
	Organism Common	:	CATTLE
	Organism Scientific	:	BOS TAURUS
	Organism Taxid	:	9913

Molecule 3 - PROPROTEINASE E
	Chains	:	C
	Organ	:	PANCREAS
	Organism Common	:	CATTLE
	Organism Scientific	:	BOS TAURUS
	Organism Taxid	:	9913

Molecule 4 - CHYMOTRYPSINOGEN C
	Chains	:	D
	Organ	:	PANCREAS
	Organism Common	:	CATTLE
	Organism Scientific	:	BOS TAURUS
	Organism Taxid	:	9913
	Synonym	:	TC, PCPA-TC

		1	2	3	4
Asymmetric/Biological Unit	:	A	B	C	D

Summary Information (see also Sequences/Alignments below)

Asymmetric/Biological Unit (2, 2)

No.	Name	Count	Type	Full Name
1	CA	1	Ligand/Ion	CALCIUM ION
2	ZN	1	Ligand/Ion	ZINC ION

Asymmetric Unit (2, 2)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	GLU C:470 , ASP C:472 , VAL C:475 , GLN C:477 , GLU C:480	BINDING SITE FOR RESIDUE CA C 650
2	AC2	SOFTWARE	HIS B:69 , GLU B:72 , HIS B:196 , HOH B:351	BINDING SITE FOR RESIDUE ZN B 350

Asymmetric/Biological Unit

No.	Residues
1	B:138	-	B:161
2	C:442	-	C:458
3	C:498	-	C:499B
4	C:536	-	C:601
5	C:568	-	C:582
6	C:591	-	C:620
7	D:701	-	D:822
8	D:742	-	D:758
9	D:836	-	D:901
10	D:868	-	D:882
11	D:891	-	D:920

Asymmetric/Biological Unit

No.	Residues
1	Ser B:197	-	Tyr B:198
2	Pro B:205	-	Tyr B:206

Asymmetric/Biological Unit (3, 3)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_CBPA1_BOVIN_001 *	I	289	V	CBPA1_BOVIN	---	---	B	I	179	V
2	UniProt	VAR_CBPA1_BOVIN_002 *	E	338	A	CBPA1_BOVIN	---	---	B	E	228	A
3	UniProt	VAR_CBPA1_BOVIN_003 *	L	415	V	CBPA1_BOVIN	---	---	B	L	305	V
	* ID not provided by source

SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

Asymmetric/Biological Unit (5, 8)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	TRYPSIN_DOM	PS50240	Serine proteases, trypsin domain profile.	CAC3_BOVIN	12-251	1	C:416-643
1	TRYPSIN_DOM	PS50240	Serine proteases, trypsin domain profile.	CTRC_BOVIN	30-267	1	D:716-943
2	TRYPSIN_HIS	PS00134	Serine proteases, trypsin family, histidine active site.	CAC3_BOVIN	52-57	1	C:453-458
2	TRYPSIN_HIS	PS00134	Serine proteases, trypsin family, histidine active site.	CTRC_BOVIN	70-75	1	D:753-758
3	CARBOXYPEPT_ZN_1	PS00132	Zinc carboxypeptidases, zinc-binding region 1 signature.	CBPA1_BOVIN	170-192	1	B:60-82
4	TRYPSIN_SER	PS00135	Serine proteases, trypsin family, serine active site.	CAC3_BOVIN	194-205	1	C:589-600
4	TRYPSIN_SER	PS00135	Serine proteases, trypsin family, serine active site.	CTRC_BOVIN	210-221	1	D:889-900
5	CARBOXYPEPT_ZN_2	PS00133	Zinc carboxypeptidases, zinc-binding region 2 signature.	CBPA1_BOVIN	306-316	1	B:196-206

Asymmetric/Biological Unit (7, 7)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1	ENSBTAT00000034040	1	ENSBTAE00000331898	chr16:49319540-49319478	63	CTRC_BOVIN	1-14	14	0	-	-
1.2	ENSBTAT00000034040	2	ENSBTAE00000269640	chr16:49318036-49317945	92	CTRC_BOVIN	14-44	31	1	D:701-730 (gaps)	30
1.3	ENSBTAT00000034040	3	ENSBTAE00000269639	chr16:49317846-49317749	98	CTRC_BOVIN	45-77	33	1	D:731-760	33
1.4	ENSBTAT00000034040	4	ENSBTAE00000331895	chr16:49316591-49316466	126	CTRC_BOVIN	77-119	43	1	D:760-800	43
1.5	ENSBTAT00000034040	5	ENSBTAE00000331894	chr16:49315604-49315468	137	CTRC_BOVIN	119-165	47	1	D:800-847 (gaps)	48
1.6	ENSBTAT00000034040	6	ENSBTAE00000331893	chr16:49314677-49314532	146	CTRC_BOVIN	165-213	49	1	D:847-892	49
1.7	ENSBTAT00000034040	7	ENSBTAE00000331892	chr16:49313388-49313236	153	CTRC_BOVIN	214-264	51	1	D:893-940 (gaps)	51
1.8	ENSBTAT00000034040	8	ENSBTAE00000423761	chr16:49312722-49312648	75	CTRC_BOVIN	265-268	4	1	D:941-944	4

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:94
 aligned with CBPA1_BOVIN | P00730 from UniProtKB/Swiss-Prot  Length:419

    Alignment length:94
                                    26        36        46        56        66        76        86        96       106    
         CBPA1_BOVIN     17 KEDFVGHQVLRITAADEAEVQTVKELEDLEHLQLDFWRGPGQPGSPIDVRVPFPSLQAVKVFLEAHGIRYRIMIEDVQSLLDEEQEQMFASQSR  110
               SCOP domains d1pyta_ A: Procarboxypeptidase A                                                               SCOP domains
               CATH domains 1pytA00 A:4-99  [code=3.30.70.340, no name defined]                                            CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......eeeeee...hhhhhhhhhhh..hhh.............eeeeee.hhhhhhhhhhhhhh..eeeeee..hhhhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) ---------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (3) ---------------------------------------------------------------------------------------------- PROSITE (3)
                PROSITE (1) ---------------------------------------------------------------------------------------------- PROSITE (1)
                 Transcript ---------------------------------------------------------------------------------------------- Transcript
                1pyt A    4 KEDFVGHQVLRITAADEAEVQTVKELEDLEHLQLDFWRGPGQPGSPIDVRVPFPSLQAVKVFLEAHGIRYRIMIEDVQSLLDEEQEQMFASQSR   99
                                    13        23        33 ||     41||      55        65        75        85        95    
                                                         34B|      42|                                                    
                                                          34C       47

Chain B from PDB  Type:PROTEIN  Length:309
 aligned with CBPA1_BOVIN | P00730 from UniProtKB/Swiss-Prot  Length:419

    Alignment length:309
                                   120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410         
         CBPA1_BOVIN    111 ARSTNTFNYATYHTLDEIYDFMDLLVAEHPQLVSKLQIGRSYEGRPIYVLKFSTGGSNRPAIWIDLGIHSREWITQATGVWFAKKFTEDYGQDPSFTAILDSMDIFLEIVTNPDGFAFTHSQNRLWRKTRSVTSSSLCVGVDANRNWDAGFGKAGASSSPCSETYHGKYANSEVEVKSIVDFVKDHGNFKAFLSIHSYSQLLLYPYGYTTQSIPDKTELNQVAKSAVEALKSLYGTSYKYGSIITTIYQASGGSIDWSYNQGIKYSFTFELRDTGRYGFLLPASQIIPTAQETWLGVLTIMEHTLNNLY  419
               SCOP domains d1pytb_ B: Carboxypeptidase A                                                                                                                                                                                                                                                                                         SCOP domains
               CATH domains 1pytB00 B:1-309 Zn peptidases                                                                                                                                                                                                                                                                                         CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............hhhhhhhhhhhhhh....eeeeeeee.....eeeeeee........eeeeee......hhhhhhhhhhhhhhhhh....hhhhhhh...eeeee....hhhhhhhhh.....................hhh............................hhhhhhhhhhhhh..eeeeeeee....eeee...........hhhhhhhhhhhhhhhhhhh....eeeehhhh.......hhhhhhhh...eeeeee.......hhh..hhhhhhhhhhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------V------------------------------------------------A----------------------------------------------------------------------------V---- SAPs(SNPs)
                PROSITE (2) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (3) -----------------------------------------------------------CARBOXYPEPT_ZN_1       ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (3)
                PROSITE (1) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------CARBOXYPEPT------------------------------------------------------------------------------------------------------- PROSITE (1)
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1pyt B    1 ARSTNTFNYATYHTLDEIYDFMDLLVAEHPQLVSKLQIGRSYEGRPIYVLKFSTGGSNRPAIWIDLGIHSREWITQATGVWFAKKFTEDYGQDPSFTAILDSMDIFLEIVTNPDGFAFTHSQNRLWRKTRSVTSSSLCVGVDANRNWDAGFGKAGASSSPCSETYHGKYANSEVEVKSIVDFVKDHGNFKAFLSIHSYSQLLLYPYGYTTQSIPDKTELNQVAKSAVEALKSLYGTSYKYGSIITTIYQASGGSIDWSYNQGIKYSFTFELRDTGRYGFLLPASQIIPTAQETWLGVLTIMEHTLNNLY  309
                                    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       280       290       300

Chain C from PDB  Type:PROTEIN  Length:248
 aligned with CAC3_BOVIN | P05805 from UniProtKB/Swiss-Prot  Length:253

    Alignment length:248
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245        
          CAC3_BOVIN      6 SRPSSRVVNGEDAVPYSWSWQVSLQYEKDGAFHHTCGGSLIAPDWVVTAGHCISTSRTYQVVLGEYDRSVLEGSEQVIPINAGDLFVHPLWNSNCVACGNDIALVKLSRSAQLGDKVQLANLPPAGDILPNEAPCYISGWGRLYTGGPLPDKLQQALLPVVDYEHCSQWDWWGITVKKTMVCAGGDTRSGCNGDSGGPLNCPAADGSWQVHGVTSFVSAFGCNTIKKPTVFTRVSAFIDWIDETIASN  253
               SCOP domains d1pytc_ C: Procarboxypeptidase A-S6 subunit III (zymogen E)                                                                                                                                                                                              SCOP domains
               CATH domains ------1pytC01     1pytC02 C:428-520,C:633-645 Trypsin-like serine proteases                                            1pytC01 C:416-427,C:521-632 Trypsin-like serine proteases                                                           1pytC02       CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....................eeeeeeee..eeeeeeeeeeee..eeee.hhh......eeeee............eeeee....eee...............eeee...........................eeeeee..............eeeeee...hhhh......hhh....eeee..............eeeee.....eeeeee...............eeee.hhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) ------TRYPSIN_DOM  PDB: C:416-643 UniProt: 12-251                                                                                                                                                                                                     -- PROSITE (1)
                PROSITE (2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                PROSITE (3) ----------------------------------------------TRYPSI----------------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER ------------------------------------------------ PROSITE (3)
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                1pyt C  410 SRPSSRVVNGEDAVPYSWSWQVSLQYEKDGAFHHTCGGSLIAPDWVVTAGHCISTSRTYQVVLGEYDRSVLQGSEQVIPINAGDLFVHPLWNSNCVACGNDIALVKLSRSAQLGDKVQLANLPPAGDILPNEAPCYISGWGRLYTGGPLPDKLQEALLPVVDYEHCSQYDWWGITVKKTMVCAGGDTRSGCDGDSGGPLNCPAADGSWQVHGVTSFVSAFGCNTIKKPTVFTRVSAFIDWINETIASN  645
                                   419       429      436C       446       456      |465       475       485 ||    493      |501       511       521       531       541  ||   552       562      570B       580       590       600     | 609       618   |   627       637        
                                                    436A||                       462A                     486A|          499A|                                          544|                     570A|                                605A         617A 621A                        
                                                     436B|                                                 486B           499B                                           546                      570B                                                                              
                                                      436C

Chain D from PDB  Type:PROTEIN  Length:251
 aligned with CTRC_BOVIN | Q7M3E1 from UniProtKB/Swiss-Prot  Length:268

    Alignment length:252
                                    26        36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196       206       216       226       236       246       256       266  
          CTRC_BOVIN     17 CGAPIFQPNLSARVVGGEDAIPHSWPWQISLQYLRDNTWRHTCGGTLITPNHVLTAAHCISNTLTYRVALGKNNLEVEDEAGSLYVGVDTIFVHEKWNSFLVRNDIALIKLAETVELSDTIQVACLPEEGSLLPQDYPCFVTGWGRLYTNGPIAAELQQGLQPVVDYATCSQRDWWGTTVKETMVCAGGDGVISACNGDSGGPLNCQAENGNWDVRGIVSFGSGLSCNTFKKPTVFTRVSAYIDWINQKLQL  268
               SCOP domains d1pytd_ D: (alpha,gamma)-chymotrypsin(ogen)                                                                                                                                                                                                                  SCOP domains
               CATH domains -------------1pytD01     1pytD02 D:728-820,D:933-944 Trypsin-like serine proteases                                         1pytD01 D:716-727,D:821-932 Trypsin-like serine proteases                                                            1pytD02      CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
     Sec.struct. author (1) ...........................eeeeeeee..eeeeeeeeeeee..eeee..........eeeee.............eeeeeeeeee.............eeeee..........................eeee...................eee...hhhh......hhh....eeee...............-----hh-heeeeeeeeee............eeeeehhhhhhhhhhh... Sec.struct. author (1)
     Sec.struct. author (2) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------eeeeee-------------------------------------------- Sec.struct. author (2)
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (2) -------------TRYPSIN_DOM  PDB: D:716-943 UniProt: 30-267                                                                                                                                                                                                   - PROSITE (2)
                PROSITE (3) -----------------------------------------------------TRYPSI--------------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER ----------------------------------------------- PROSITE (3)
           Transcript 1 (1) Exon 1.2 UniProt: 14-44     Exon 1.3  PDB: D:731-760         -----------------------------------------Exon 1.5  PDB: D:800-847 (gaps)                ------------------------------------------------Exon 1.7  PDB: D:893-940 (gaps) UniProt: 214-264   1.8  Transcript 1 (1)
           Transcript 1 (2) ------------------------------------------------------------Exon 1.4  PDB: D:760-800 UniProt: 77-119   ---------------------------------------------Exon 1.6  PDB: D:847-892 UniProt: 165-213        ------------------------------------------------------- Transcript 1 (2)
                1pyt D  701 CGAPIFQPNLSARVVGGEDAIPHSWPWQISLQYLRDNTWRHTCGGTLITPNHVLTAAHCISNTLTYRVALGKNNLEVEDEAGSLYVGVDTIFVHEKWNSFLVRNDIALIKLAETVELGDTIQVACLPSEGSLLPQDYPCFVTGWGRLYTNGPIAAELQQGLQPVVDYATCSQRDWWGTTVKETMVCAGGDGVISACNGDSGGPLNCQAD-GQWDVRGIVSFGSGLSCNTFKKPTVFTRVSAYIDWINQKLQL  944
                                   710 ||    722       732    |||739       749       759   |   768       778 |     787       797       807       817       827       837      |848       858       868  ||   876       886  |    895        |-|      914   |   922       932       942  
                                     712|                  736A||                       762A              779A                                                              844|                     870A|               888A             904 |         917A 921A                       
                                      715                   736B|                                                                                                            846                      870B                                  905                                         
                                                             736C

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(

)

Architectures( (-)

)

Topologies( (-)

)

Homologous Superfamilies( (-)

)

Organisms( (-)

)

Class: Alpha Beta (26913)

Architecture: 2-Layer Sandwich (8480)

Topology: Alpha-Beta Plaits (1688)

Homologous Superfamily: [code=3.30.70.340, no name defined] (8)

Cattle (Bos taurus) (1)

1pytA00

A:4-99

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

Topology: Aminopeptidase (284)

Homologous Superfamily: Zn peptidases (137)

Cattle (Bos taurus) (28)

1pytB00

B:1-309

Class: Mainly Beta (13760)

Architecture: Beta Barrel (4804)

Topology: Thrombin, subunit H (1535)

Homologous Superfamily: Trypsin-like serine proteases (1488)

Cattle (Bos taurus) (308)

3a	1pytC02	C:428-520,C:633-645
3b	1pytD02	D:728-820,D:933-944
3c	1pytC01	C:416-427,C:521-632
3d	1pytD01	D:716-727,D:821-932

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

Asymmetric/Biological Unit(hide GO term definitions)

Chain A,B (CBPA1_BOVIN | P00730)

molecular function
	GO:0004180	carboxypeptidase activity	Catalysis of the hydrolysis of the terminal or penultimate peptide bond at the C-terminal end of a peptide or polypeptide.
	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:0004181	metallocarboxypeptidase activity	Catalysis of the hydrolysis of C-terminal amino acid residues from 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:0008237	metallopeptidase activity	Catalysis of the hydrolysis of peptide bonds 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:0008270	zinc ion binding	Interacting selectively and non-covalently with zinc (Zn) ions.
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.
	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.

Chain C (CAC3_BOVIN | P05805)

molecular function
	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).
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.

Chain D (CTRC_BOVIN | Q7M3E1)

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.
	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/Biological Unit
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	Cis Peptide Bonds
		Pro B:205 - Tyr B:206	[ RasMol ]
		Ser B:197 - Tyr B:198	[ RasMol ]

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Access by PDB/NDB ID
	1pyt
		Family and Domain Information	:	ProDom \| SYSTERS
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Access by UniProt ID/Accession number
	CAC3_BOVIN \| P05805
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	CBPA1_BOVIN \| P00730
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		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt
	CTRC_BOVIN \| Q7M3E1
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt

Access by Enzyme Classificator (EC Number)
	3.4.17.1
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

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	(no 'MIM ID' available)
		Disease Information	:	OMIM

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	(no 'GenAge ID' available)
		Age Related Information	:	GenAge

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		Domain Information	:	XDom
		Interatomic Contacts of Structural Units	:	CSU
		Ligand-protein Contacts	:	LPC
		Protein Cavities	:	castP
		Sequence and Secondary Structure	:	PDBCartoon
		Structure Alignment	:	STRAP(Java WebStart application, automatic local installation, requires Java; full application with system access!)
		Structure and Sequence Browser	:	STING

Access by UniProt ID/Accession number
	CAC3_BOVIN \| P05805
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)
	CBPA1_BOVIN \| P00730
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)
	CTRC_BOVIN \| Q7M3E1
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

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

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 2)

Sites (2, 2)

SS Bonds (11, 11)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (3, 3)

PROSITE Motifs (5, 8)

Exons (7, 7)

Sequences/Alignments

Classification and Annotation

SCOP Domains (4, 4)

CATH Domains (3, 6)

Pfam Domains (0, 0)

Gene Ontology (13, 22)

Visualization

Interactive Views

Still Images

Databases and Analysis Tools

Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File