4A94 - JenaLib

Asymmetric Unit (Jmol Viewer)

Asym. Unit - sites (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biol. Unit 1 - sites (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Title :   STRUCTURE OF THE CARBOXYPEPTIDASE INHIBITOR FROM NERITA VERSICOLOR IN COMPLEX WITH HUMAN CPA4

Authors :   G. Covaleda, M. Alonso, M. A. Chavez, F. X. Aviles, D. Reverter

Date :   23 Nov 11 (Deposition) - 28 Dec 11 (Release) - 28 Mar 12 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.70

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

Keywords :   Hydrolase-Hydrolase Inhibitor Complex, Cpa4, Nvci, Pci, Lci (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   G. Covaleda, M. Alonso Del Rivero, M. A. Chavez, F. X. Aviles, D. Reverter
Crystal Structure Of A Novel Metallo-Carboxypeptidase Inhibitor From The Marine Mollusk Nerita Versicolor In Complex With Human Carboxypeptidase A4.
J. Biol. Chem. V. 287 9250 2012
PubMed-ID: 22294694 | Reference-DOI: 10.1074/JBC.M111.330100

Molecule 1 - CARBOXYPEPTIDASE A4
	Chains	:	A, B
	EC Number	:	3.4.17.-
	Expression System	:	KOMAGATAELLA PASTORIS
	Expression System Taxid	:	4922
	Expression System Vector	:	PPICZ
	Fragment	:	RESIDUES 112-421
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	CARBOXYPEPTIDASE A3

Molecule 2 - CARBOXYPEPTIDASE INHIBITOR
	Chains	:	C, D
	Expression System	:	KOMAGATAELLA PASTORIS
	Expression System Taxid	:	4922
	Expression System Vector	:	PPICZ
	Organism Scientific	:	NERITA VERSICOLOR
	Organism Taxid	:	159942

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

Summary Information (see also Sequences/Alignments below)

Asymmetric Unit (2, 8)

No.	Name	Count	Type	Full Name
1	NO3	6	Ligand/Ion	NITRATE ION
2	ZN	2	Ligand/Ion	ZINC ION

Biological Unit 1 (1, 3)

No.	Name	Count	Type	Full Name
1	NO3	3	Ligand/Ion	NITRATE ION
2	ZN	-1	Ligand/Ion	ZINC ION

Biological Unit 2 (1, 3)

No.	Name	Count	Type	Full Name
1	NO3	3	Ligand/Ion	NITRATE ION
2	ZN	-1	Ligand/Ion	ZINC ION

Asymmetric Unit (8, 8)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	HIS A:69 , GLU A:72 , HIS A:196 , ALA D:53	BINDING SITE FOR RESIDUE ZN A 500
2	AC2	SOFTWARE	HIS A:69 , ARG A:127 , ASN A:144 , ARG A:145 , HIS A:196 , TYR A:248 , GLU A:270 , ALA D:53	BINDING SITE FOR RESIDUE NO3 A1309
3	AC3	SOFTWARE	ARG A:71 , LEU A:125 , TRP A:126 , ARG A:127 , LYS A:128 , HOH A:2094	BINDING SITE FOR RESIDUE NO3 A1310
4	AC4	SOFTWARE	HIS B:69 , GLU B:72 , HIS B:196 , ALA C:53	BINDING SITE FOR RESIDUE ZN B 501
5	AC5	SOFTWARE	HIS B:69 , ARG B:127 , ASN B:144 , ARG B:145 , TYR B:248 , GLU B:270 , ALA C:53	BINDING SITE FOR RESIDUE NO3 B1309
6	AC6	SOFTWARE	LEU B:125 , TRP B:126 , ARG B:127 , LYS B:128 , GLU B:163 , HOH B:2035 , HOH B:2039 , GLN C:39	BINDING SITE FOR RESIDUE NO3 B1310
7	AC7	SOFTWARE	ASN B:159 , CYS B:161 , ARG C:7 , ILE C:10 , PHE C:25 , HIS C:40	BINDING SITE FOR RESIDUE NO3 C1054
8	AC8	SOFTWARE	ASN A:159 , CYS A:161 , ARG D:7 , CYS D:9 , ILE D:10 , PHE D:25 , HIS D:40	BINDING SITE FOR RESIDUE NO3 D1054

Asymmetric Unit

No.	Residues
1	A:138	-	A:161
2	B:138	-	B:161
3	C:9	-	C:23
4	C:15	-	C:51
5	C:27	-	C:38
6	D:9	-	D:23
7	D:15	-	D:51
8	D:27	-	D:38

Asymmetric Unit

No.	Residues
1	Ser A:197	-	Tyr A:198
2	Pro A:205	-	Tyr A:206
3	Arg A:272	-	Asp A:273
4	Ser B:197	-	Tyr B:198
5	Pro B:205	-	Tyr B:206
6	Arg B:272	-	Asp B:273

Asymmetric Unit (3, 6)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_020393	P	157	T	CBPA4_HUMAN	Polymorphism	3735051	A/B	P	45	T
2	UniProt	VAR_048595	R	183	L	CBPA4_HUMAN	Polymorphism	3735053	A/B	R	71	L
3	UniProt	VAR_020394	G	303	C	CBPA4_HUMAN	Polymorphism	2171492	A/B	G	191	C

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

Biological Unit 1 (3, 3)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_020393	P	157	T	CBPA4_HUMAN	Polymorphism	3735051	A	P	45	T
2	UniProt	VAR_048595	R	183	L	CBPA4_HUMAN	Polymorphism	3735053	A	R	71	L
3	UniProt	VAR_020394	G	303	C	CBPA4_HUMAN	Polymorphism	2171492	A	G	191	C

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

Biological Unit 2 (3, 3)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_020393	P	157	T	CBPA4_HUMAN	Polymorphism	3735051	B	P	45	T
2	UniProt	VAR_048595	R	183	L	CBPA4_HUMAN	Polymorphism	3735053	B	R	71	L
3	UniProt	VAR_020394	G	303	C	CBPA4_HUMAN	Polymorphism	2171492	B	G	191	C

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

Asymmetric Unit (2, 4)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CARBOXYPEPT_ZN_1	PS00132	Zinc carboxypeptidases, zinc-binding region 1 signature.	CBPA4_HUMAN	172-194	2	A:60-82 B:60-82
2	CARBOXYPEPT_ZN_2	PS00133	Zinc carboxypeptidases, zinc-binding region 2 signature.	CBPA4_HUMAN	308-318	2	A:196-206 B:196-206

Biological Unit 1 (2, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CARBOXYPEPT_ZN_1	PS00132	Zinc carboxypeptidases, zinc-binding region 1 signature.	CBPA4_HUMAN	172-194	1	A:60-82 -
2	CARBOXYPEPT_ZN_2	PS00133	Zinc carboxypeptidases, zinc-binding region 2 signature.	CBPA4_HUMAN	308-318	1	A:196-206 -

Biological Unit 2 (2, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	CARBOXYPEPT_ZN_1	PS00132	Zinc carboxypeptidases, zinc-binding region 1 signature.	CBPA4_HUMAN	172-194	1	- B:60-82
2	CARBOXYPEPT_ZN_2	PS00133	Zinc carboxypeptidases, zinc-binding region 2 signature.	CBPA4_HUMAN	308-318	1	- B:196-206

Asymmetric Unit (8, 16)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1a	ENST00000222482	1a	ENSE00001175329	chr7:129932993-129933088	96	CBPA4_HUMAN	1-23	23	0	-	-
1.3	ENST00000222482	3	ENSE00000882290	chr7:129938586-129938667	82	CBPA4_HUMAN	23-50	28	0	-	-
1.4a	ENST00000222482	4a	ENSE00000723226	chr7:129939110-129939244	135	CBPA4_HUMAN	51-95	45	0	-	-
1.6	ENST00000222482	6	ENSE00000723228	chr7:129940656-129940754	99	CBPA4_HUMAN	96-128	33	2	A:6-16 B:6-16	11 11
1.7c	ENST00000222482	7c	ENSE00000723230	chr7:129944318-129944419	102	CBPA4_HUMAN	129-162	34	2	A:17-50 B:17-50	34 34
1.8b	ENST00000222482	8b	ENSE00000723233	chr7:129945656-129945760	105	CBPA4_HUMAN	163-197	35	2	A:51-85 B:51-85	35 35
1.9c	ENST00000222482	9c	ENSE00000723234	chr7:129946627-129946737	111	CBPA4_HUMAN	198-234	37	2	A:86-122 B:86-122	37 37
1.10b	ENST00000222482	10b	ENSE00000723236	chr7:129948147-129948237	91	CBPA4_HUMAN	235-265	31	2	A:123-153 B:123-153	31 31
1.11	ENST00000222482	11	ENSE00000723239	chr7:129950627-129950826	200	CBPA4_HUMAN	265-331	67	2	A:153-219 B:153-219	67 67
1.12	ENST00000222482	12	ENSE00000723240	chr7:129951878-129951962	85	CBPA4_HUMAN	332-360	29	2	A:220-248 B:220-248	29 29
1.13b	ENST00000222482	13b	ENSE00001279439	chr7:129962329-129964019	1691	CBPA4_HUMAN	360-421	62	2	A:248-307 B:248-307	60 60

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:302
 aligned with CBPA4_HUMAN | Q9UI42 from UniProtKB/Swiss-Prot  Length:421

    Alignment length:302
                                   127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417  
          CBPA4_HUMAN   118 FNYGAYHSLEAIYHEMDNIAADFPDLARRVKIGHSFENRPMYVLKFSTGKGVRRPAVWLNAGIHSREWISQATAIWTARKIVSDYQRDPAITSILEKMDIFLLPVANPDGYVYTQTQNRLWRKTRSRNPGSSCIGADPNRNWNASFAGKGASDNPCSEVYHGPHANSEVEVKSVVDFIQKHGNFKGFIDLHSYSQLLMYPYGYSVKKAPDAEELDKVARLAAKALASVSGTEYQVGPTCTTVYPASGSSIDWAYDNGIKFAFTFELRDTGTYGFLLPANQIIPTAEETWLGLKTIMEHVRDN 419
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......hhhhhhhhhhhhhhhh...eeeeeeee.....eeeeeee.........eeeeee.....hhhhhhhhhhhhhhhhhhh..hhhhhhhhhhheeeee...hhhhhhhhhhh...................hhhhh..........................hhhhhhhhhhhhhhh.eeeeeeee....eeee..........hhhhhhhhhhhhhhhhhh......eeeehhhhh.....hhhhhhhhh...eeeeee...........hhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------T-------------------------L-----------------------------------------------------------------------------------------------------------------------C-------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------CARBOXYPEPT_ZN_1       -----------------------------------------------------------------------------------------------------------------CARBOXYPEPT----------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.6   Exon 1.7c  PDB: A:17-50           Exon 1.8b  PDB: A:51-85            Exon 1.9c  PDB: A:86-122             Exon 1.10b  PDB: A:123-153     ------------------------------------------------------------------Exon 1.12  PDB: A:220-248    ----------------------------------------------------------- Transcript 1 (1)
           Transcript 1 (2) ---------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.11  PDB: A:153-219 UniProt: 265-331                         ----------------------------Exon 1.13b  PDB: A:248-307 UniProt: 360-421 [INCOMPLETE]     Transcript 1 (2)
                 4a94 A   6 FNYGAYHSLEAIYHEMDNIAADFPDLARRVKIGHSFENRPMYVLKFSTGKGVRRPAVWLNAGIHSREWISQATAIWTARKIVSDYQRDPAITSILEKMDIFLLPVANPDGYVYTQTQNRLWRKTRSRNPGSSCIGADPNRNWNASFAGKGASDNPCSEVYHGPHANSEVEVKSVVDFIQKHGNFKGFIDLHSYSQLLMYPYGYSVKKAPDAEELDKVARLAAKALASVSGTEYQVGPTCTTVYPASGSSIDWAYDNGIKFAFTFELRDTGTYGFLLPANQIIPTAEETWLGLKTIMEHVRDN 307
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305

Chain B from PDB  Type:PROTEIN  Length:302
 aligned with CBPA4_HUMAN | Q9UI42 from UniProtKB/Swiss-Prot  Length:421

    Alignment length:302
                                   127       137       147       157       167       177       187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337       347       357       367       377       387       397       407       417  
          CBPA4_HUMAN   118 FNYGAYHSLEAIYHEMDNIAADFPDLARRVKIGHSFENRPMYVLKFSTGKGVRRPAVWLNAGIHSREWISQATAIWTARKIVSDYQRDPAITSILEKMDIFLLPVANPDGYVYTQTQNRLWRKTRSRNPGSSCIGADPNRNWNASFAGKGASDNPCSEVYHGPHANSEVEVKSVVDFIQKHGNFKGFIDLHSYSQLLMYPYGYSVKKAPDAEELDKVARLAAKALASVSGTEYQVGPTCTTVYPASGSSIDWAYDNGIKFAFTFELRDTGTYGFLLPANQIIPTAEETWLGLKTIMEHVRDN 419
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......hhhhhhhhhhhhhhhh...eeeeeeee.....eeeeeee.........eeeeee.....hhhhhhhhhhhhhhhhhhh..hhhhhhhhhhheeeee...hhhhhhhhhhh...................hhhhh..........................hhhhhhhhhhhhhhh.eeeeeeee....eeee..........hhhhhhhhhhhhhhhhhh......eeeehhhhh.....hhhhhhhhh...eeeeee...........hhhhhhhhhhhhhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------T-------------------------L-----------------------------------------------------------------------------------------------------------------------C-------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------CARBOXYPEPT_ZN_1       -----------------------------------------------------------------------------------------------------------------CARBOXYPEPT----------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.6   Exon 1.7c  PDB: B:17-50           Exon 1.8b  PDB: B:51-85            Exon 1.9c  PDB: B:86-122             Exon 1.10b  PDB: B:123-153     ------------------------------------------------------------------Exon 1.12  PDB: B:220-248    ----------------------------------------------------------- Transcript 1 (1)
           Transcript 1 (2) ---------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.11  PDB: B:153-219 UniProt: 265-331                         ----------------------------Exon 1.13b  PDB: B:248-307 UniProt: 360-421 [INCOMPLETE]     Transcript 1 (2)
                 4a94 B   6 FNYGAYHSLEAIYHEMDNIAADFPDLARRVKIGHSFENRPMYVLKFSTGKGVRRPAVWLNAGIHSREWISQATAIWTARKIVSDYQRDPAITSILEKMDIFLLPVANPDGYVYTQTQNRLWRKTRSRNPGSSCIGADPNRNWNASFAGKGASDNPCSEVYHGPHANSEVEVKSVVDFIQKHGNFKGFIDLHSYSQLLMYPYGYSVKKAPDAEELDKVARLAAKALASVSGTEYQVGPTCTTVYPASGSSIDWAYDNGIKFAFTFELRDTGTYGFLLPANQIIPTAEETWLGLKTIMEHVRDN 307
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305

Chain C from PDB  Type:PROTEIN  Length:51
 aligned with MCPI_NERVS | P86912 from UniProtKB/Swiss-Prot  Length:53

    Alignment length:51
                                    12        22        32        42        52 
           MCPI_NERVS     3 VPDDRPCINPGRCPLVPDATCTFVCKAADNDFGYECQHVWTFEGQRVGCYA  53
               SCOP domains --------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------- Pfam domains
         Sec.struct. author ...................eeeeeeee......eeeeeeeee..eee.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------- Transcript
                 4a94 C   3 VPDDRPCINPGRCPLVPDATCTFVCKAADNDFGYECQHVWTFEGQRVGCYA  53
                                    12        22        32        42        52

Chain D from PDB  Type:PROTEIN  Length:51
 aligned with MCPI_NERVS | P86912 from UniProtKB/Swiss-Prot  Length:53

    Alignment length:51
                                    12        22        32        42        52 
           MCPI_NERVS     3 VPDDRPCINPGRCPLVPDATCTFVCKAADNDFGYECQHVWTFEGQRVGCYA  53
               SCOP domains --------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------- Pfam domains
         Sec.struct. author ....ee.............eeeeeeee......eeeeeeeee..eee.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------- Transcript
                 4a94 D   3 VPDDRPCINPGRCPLVPDATCTFVCKAADNDFGYECQHVWTFEGQRVGCYA  53
                                    12        22        32        42        52

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 '\|'

(no "SCOP Domain" information available for 4A94)

(no "CATH Domain" information available for 4A94)

(no "Pfam Domain" information available for 4A94)

Asymmetric Unit(hide GO term definitions)

Chain A,B (CBPA4_HUMAN | Q9UI42)

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:0016573	histone acetylation	The modification of a histone by the addition of an acetyl group.
	GO:0006508	proteolysis	The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
cellular component
	GO:0005575	cellular_component	The part of a cell, extracellular environment or virus in which a gene product is located. A gene product may be located in one or more parts of a cell and its location may be as specific as a particular macromolecular complex, that is, a stable, persistent association of macromolecules that function together.
	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,D (MCPI_NERVS | P86912)

molecular function
	GO:0004857	enzyme inhibitor activity	Binds to and stops, prevents or reduces the activity of an enzyme.
	GO:0046872	metal ion binding	Interacting selectively and non-covalently with any metal ion.
	GO:0008191	metalloendopeptidase inhibitor activity	Stops, prevents or reduces the activity of metalloendopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain and contain a chelated metal ion at their active sites which is essential to their catalytic activity.
	GO:0030414	peptidase inhibitor activity	Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds.
biological process
	GO:0010951	negative regulation of endopeptidase activity	Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
	GO:0010466	negative regulation of peptidase activity	Any process that stops or reduces the rate of peptidase activity, the hydrolysis of peptide bonds within proteins.

Asymmetric Unit
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	Cis Peptide Bonds
		Arg A:272 - Asp A:273	[ RasMol ]
		Arg B:272 - Asp B:273	[ RasMol ]
		Pro A:205 - Tyr A:206	[ RasMol ]
		Pro B:205 - Tyr B:206	[ RasMol ]
		Ser A:197 - Tyr A:198	[ RasMol ]
		Ser B:197 - Tyr B:198	[ RasMol ]

Biological Units
	Complete Structure
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Access by PDB/NDB ID
	4a94
		Family and Domain Information	:	ProDom \| SYSTERS
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		Orientation in Membranes	:	OPM
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		Secondary Structure	:	DSSP (structure derived) \| HSSP (homology derived)
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Access by UniProt ID/Accession number
	CBPA4_HUMAN \| Q9UI42
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	MCPI_NERVS \| P86912
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	3.4.17.-
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		Domain Information	:	XDom
		Interatomic Contacts of Structural Units	:	CSU
		Ligand-protein Contacts	:	LPC
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	CBPA4_HUMAN \| Q9UI42
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)
	MCPI_NERVS \| P86912
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

UniProtKB/Swiss-Prot
	CBPA4_HUMAN \| Q9UI42	:	2bo9 2boa 2pcu 4bd9

2bo9	HUMAN CARBOXYPEPTIDASE A4 IN COMPLEX WITH HUMAN LATEXIN.
2boa	HUMAN PROCARBOXYPEPTIDASE A4.

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 8)

Sites (8, 8)

SS Bonds (8, 8)

Cis Peptide Bonds (6, 6)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (3, 6)

PROSITE Motifs (2, 4)

Exons (8, 16)

Sequences/Alignments

Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (0, 0)

Pfam Domains (0, 0)

Gene Ontology (17, 18)

Visualization

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Databases

Analysis Tools

Related Entries

Entries Sharing at Least One Protein Chain (UniProt ID)

Related Entries Specified in the PDB File