4DJZ - JenaLib

Asymmetric Unit (Jmol Viewer)

Biological Unit 1 (Jmol Viewer)

Biological Unit 2 (Jmol Viewer)

Title :   CATALYTIC FRAGMENT OF MASP-1 IN COMPLEX WITH ITS SPECIFIC INHIBITOR DEVELOPED BY DIRECTED EVOLUTION ON SGCI SCAFFOLD

Authors :   D. Heja, V. Harmat, K. Fodor, M. Wilmanns, J. Dobo, K. A. Kekesi, P. Zavod P. Gal, G. Pal

Date :   03 Feb 12 (Deposition) - 25 Apr 12 (Release) - 27 Jun 12 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   3.20

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

Keywords :   In Vitro Evolution, Specific Inhibitor, Hydrolase, Hydrolase- Hydrolase Inhibitor Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   D. Heja, V. Harmat, K. Fodor, M. Wilmanns, J. Dobo, K. A. Kekesi, P. Zavodszky, P. Gal, G. Pal
Monospecific Inhibitors Show That Both Mannan-Binding Lectin-Associated Serine Protease-1 (Masp-1) And -2 Are Essential For Lectin Pathway Activation And Reveal Structural Plasticity Of Masp-2.
J. Biol. Chem. V. 287 20290 2012
PubMed-ID: 22511776 | Reference-DOI: 10.1074/JBC.M112.354332

Molecule 1 - MANNAN-BINDING LECTIN SERINE PROTEASE 1 HEAVY CHAIN
	Chains	:	A, C
	EC Number	:	3.4.21.-
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET-17B
	Expression System Strain	:	BL21(DE3)PLYSS
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Fragment	:	SUSHI DOMAIN RESIDUES 298-448
	Gene	:	CRARF, CRARF1, MASP1, PRSS5
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	MANNAN-BINDING LECTIN SERINE PROTEASE 1, COMPLEMENT FACTOR MASP-3, COMPLEMENT-ACTIVATING COMPONENT OF RA-REACTIVE FACTOR, MANNOSE-BINDING LECTIN-ASSOCIATED SERINE PROTEASE 1, MASP-1, MANNOSE- BINDING PROTEIN-ASSOCIATED SERINE PROTEASE, RA-REACTIVE FACTOR SERINE PROTEASE P100, RARF, SERINE PROTEASE 5

Molecule 2 - MANNAN-BINDING LECTIN SERINE PROTEASE 1 LIGHT CHAIN
	Chains	:	B, D
	EC Number	:	3.4.21.-
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PET-17B
	Expression System Strain	:	BL21(DE3)PLYSS
	Expression System Taxid	:	469008
	Expression System Vector Type	:	PLASMID
	Fragment	:	PEPTIDASE S1 DOMAIN RESIDUES 449-699
	Gene	:	CRARF, CRARF1, MASP1, PRSS5
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	MANNAN-BINDING LECTIN SERINE PROTEASE 1, COMPLEMENT FACTOR MASP-3, COMPLEMENT-ACTIVATING COMPONENT OF RA-REACTIVE FACTOR, MANNOSE-BINDING LECTIN-ASSOCIATED SERINE PROTEASE 1, MASP-1, MANNOSE- BINDING PROTEIN-ASSOCIATED SERINE PROTEASE, RA-REACTIVE FACTOR SERINE PROTEASE P100, RARF, SERINE PROTEASE 5

Molecule 3 - PROTEASE INHIBITOR SGPI-2
	Chains	:	H, I
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI
	Expression System Plasmid	:	PMAL-P2G, PMAL-TEV-SGPI
	Expression System Strain	:	BL21 STAR
	Expression System Taxid	:	511693
	Expression System Vector Type	:	PLASMID
	Gene	:	Y09605.1
	Mutation	:	YES
	Organism Common	:	DESERT LOCUST
	Organism Scientific	:	SCHISTOCERCA GREGARIA
	Organism Taxid	:	7010
	Synonym	:	PROTEASE INHIBITOR SGPI-2, SCHISTOCERCA GREGARIA CHYMOTRYPSIN INHIBITOR, SGCI

		1	2	3	4	5	6
Asymmetric Unit	:	A	B	C	D	H	I
Biological Unit 1 (1x)	:	A	B			H
Biological Unit 2 (1x)	:			C	D		I

Summary Information (see also Sequences/Alignments below)

(no "Ligand,Modified Residues,Ions" information available for 4DJZ)

(no "Site" information available for 4DJZ)

Asymmetric Unit

No.	Residues
1	A:301	-	A:349
2	A:329	-	A:362
3	A:367	-	A:414
4	A:397	-	A:432
5	A:436	-	B:572
6	B:475	-	B:491
7	B:614	-	B:631
8	B:642	-	B:672
9	C:301	-	C:349
10	C:329	-	C:362
11	C:367	-	C:414
12	C:397	-	C:432
13	C:436	-	D:572
14	D:475	-	D:491
15	D:614	-	D:631
16	D:642	-	D:672
17	H:7	-	H:22
18	H:17	-	H:36
19	H:20	-	H:31
20	I:7	-	I:22
21	I:17	-	I:36
22	I:20	-	I:31

Asymmetric Unit

No.	Residues
1	Glu A:313	-	Pro A:314
2	Asp A:338	-	Asn A:339
3	Glu A:399	-	Pro A:400
4	Ala B:619	-	Pro B:620
5	Arg B:655	-	Glu B:656
6	Glu C:313	-	Pro C:314
7	Glu C:399	-	Pro C:400
8	Ala D:619	-	Pro D:620
9	Arg D:655	-	Glu D:656

Asymmetric Unit (2, 4)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_051832	V	568	A	MASP1_HUMAN	Polymorphism	13322090	B/D	V	568	A
2	UniProt	VAR_051833	G	679	R	MASP1_HUMAN	Polymorphism	3774266	B/D	G	679	R

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

Biological Unit 1 (2, 2)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_051832	V	568	A	MASP1_HUMAN	Polymorphism	13322090	B	V	568	A
2	UniProt	VAR_051833	G	679	R	MASP1_HUMAN	Polymorphism	3774266	B	G	679	R

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

Biological Unit 2 (2, 2)

								dbSNP	PDB
No.	Source	Variant ID	Variant			UniProt ID	Status	ID	Chain	Variant
1	UniProt	VAR_051832	V	568	A	MASP1_HUMAN	Polymorphism	13322090	D	V	568	A
2	UniProt	VAR_051833	G	679	R	MASP1_HUMAN	Polymorphism	3774266	D	G	679	R

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

Asymmetric Unit (4, 10)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SUSHI	PS50923	Sushi/CCP/SCR domain profile.	MASP1_HUMAN	299-364 365-434	4	A:299-364 C:299-364 A:365-434 C:365-434
2	TRYPSIN_DOM	PS50240	Serine proteases, trypsin domain profile.	MASP1_HUMAN	449-696	2	B:449-696 D:449-696
3	TRYPSIN_HIS	PS00134	Serine proteases, trypsin family, histidine active site.	MASP1_HUMAN	486-491	2	B:486-491 D:486-491
4	TRYPSIN_SER	PS00135	Serine proteases, trypsin family, serine active site.	MASP1_HUMAN	640-651	2	B:640-651 D:640-651

Biological Unit 1 (4, 5)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SUSHI	PS50923	Sushi/CCP/SCR domain profile.	MASP1_HUMAN	299-364 365-434	2	A:299-364 - A:365-434 -
2	TRYPSIN_DOM	PS50240	Serine proteases, trypsin domain profile.	MASP1_HUMAN	449-696	1	B:449-696 -
3	TRYPSIN_HIS	PS00134	Serine proteases, trypsin family, histidine active site.	MASP1_HUMAN	486-491	1	B:486-491 -
4	TRYPSIN_SER	PS00135	Serine proteases, trypsin family, serine active site.	MASP1_HUMAN	640-651	1	B:640-651 -

Biological Unit 2 (4, 5)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	SUSHI	PS50923	Sushi/CCP/SCR domain profile.	MASP1_HUMAN	299-364 365-434	2	- C:299-364 - C:365-434
2	TRYPSIN_DOM	PS50240	Serine proteases, trypsin domain profile.	MASP1_HUMAN	449-696	1	- D:449-696
3	TRYPSIN_HIS	PS00134	Serine proteases, trypsin family, histidine active site.	MASP1_HUMAN	486-491	1	- D:486-491
4	TRYPSIN_SER	PS00135	Serine proteases, trypsin family, serine active site.	MASP1_HUMAN	640-651	1	- D:640-651

(no "Exon" information available for 4DJZ)

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:148
 aligned with MASP1_HUMAN | P48740 from UniProtKB/Swiss-Prot  Length:699

    Alignment length:148
                                   306       316       326       336       346       356       366       376       386       396       406       416       426       436        
          MASP1_HUMAN   297 AGNECPELQPPVHGKIEPSQAKYFFKDQVLVSCDTGYKVLKDNVEMDTFQIECLKDGTWSNKIPTCKIVDCRAPGELEHGLITFSTRNNLTTYKSEIKYSCQEPYYKMLNNNTGIYTCSAQGVWMNKVLGRSLPTCLPVCGLPKFSRK 444
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...ee..........ee.....ee...eeeee....eeeee..eee.eeeee............eeee...........eeeee...........eeeeee....eee.hhh..eeeee...eee..........eee.......... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) --SUSHI  PDB: A:299-364 UniProt: 299-364                            SUSHI  PDB: A:365-434 UniProt: 365-434                                ---------- PROSITE (1)
                PROSITE (2) ---------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4djz A 297 TGNECPELQPPVHGKIEPSQAKYFFKDQVLVSCDTGYKVLKDNVEMDTFQIECLKDGTWSNKIPTCKIVDCRAPGELEHGLITFSTRNNLTTYKSEIKYSCQEPYYKMLNNNTGIYTCSAQGVWMNKVLGRSLPTCLPVCGLPKFSRK 444
                                   306       316       326       336       346       356       366       376       386       396       406       416       426       436

Chain B from PDB  Type:PROTEIN  Length:251
 aligned with MASP1_HUMAN | P48740 from UniProtKB/Swiss-Prot  Length:699

    Alignment length:251
                                   458       468       478       488       498       508       518       528       538       548       558       568       578       588       598       608       618       628       638       648       658       668       678       688       698 
          MASP1_HUMAN   449 IFNGRPAQKGTTPWIAMLSHLNGQPFCGGSLLGSSWIVTAAHCLHQSLDPEDPTLRDSDLLSPSDFKIILGKHWRLRSDENEQHLGVKHTTLHPQYDPNTFENDVALVELLESPVLNAFVMPICLPEGPQQEGAMVIVSGWGKQFLQRFPETLMEIEIPIVDHSTCQKAYAPLKKKVTRDMICAGEKEGGKDACAGDSGGPMVTLNRERGQWYLVGTVSWGDDCGKKDRYGVYSYIHHNKDWIQRVTGVRN 699
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....ee........eeeee.....eeeeeeee...eeeehhhhhh..........hhhhh.hhhhheeee............eee.eeeeee.............eeeee........................eeeeee...hhhhh.....eeeeeeeehhhhhhhhhh.........eeee................eeeeee....eeeeeeeeeee.........eeeee...hhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) -----------------------------------------------------------------------------------------------------------------------A--------------------------------------------------------------------------------------------------------------R-------------------- SAPs(SNPs)
                PROSITE (1) TRYPSIN_DOM  PDB: B:449-696 UniProt: 449-696                                                                                                                                                                                                            --- PROSITE (1)
                PROSITE (2) -------------------------------------TRYPSI----------------------------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER ------------------------------------------------ PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4djz B 449 IFNGRPAQKGTTPWIAMLSHLNGQPFCGGSLLGSSWIVTAAHCLHQSLDPKDPTLRDSDLLSPSDFKIILGKHWRLRSDENEQHLGVKHTTLHPQYDPNTFENDVALVELLESPVLNAFVMPICLPEGPQQEGAMVIVSGWGKQFLQRFPETLMEIEIPIVDHSTCQKAYAPLKKKVTRDMICAGEKEGGKDACAGDSGGPMVTLNRERGQWYLVGTVSWGDDCGKKDRYGVYSYIHHNKDWIQRVTGVRN 699
                                   458       468       478       488       498       508       518       528       538       548       558       568       578       588       598       608       618       628       638       648       658       668       678       688       698

Chain C from PDB  Type:PROTEIN  Length:148
 aligned with MASP1_HUMAN | P48740 from UniProtKB/Swiss-Prot  Length:699

    Alignment length:148
                                   306       316       326       336       346       356       366       376       386       396       406       416       426       436        
          MASP1_HUMAN   297 AGNECPELQPPVHGKIEPSQAKYFFKDQVLVSCDTGYKVLKDNVEMDTFQIECLKDGTWSNKIPTCKIVDCRAPGELEHGLITFSTRNNLTTYKSEIKYSCQEPYYKMLNNNTGIYTCSAQGVWMNKVLGRSLPTCLPVCGLPKFSRK 444
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........................eeeee....eeee....ee.eeeee..............ee...........ee..............eee.ee....eee.hhh..eeee.....ee..........eee.......... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                PROSITE (1) --SUSHI  PDB: C:299-364 UniProt: 299-364                            SUSHI  PDB: C:365-434 UniProt: 365-434                                ---------- PROSITE (1)
                PROSITE (2) ---------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE (2)
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4djz C 297 TGNECPELQPPVHGKIEPSQAKYFFKDQVLVSCDTGYKVLKDNVEMDTFQIECLKDGTWSNKIPTCKIVDCRAPGELEHGLITFSTRNNLTTYKSEIKYSCQEPYYKMLNNNTGIYTCSAQGVWMNKVLGRSLPTCLPVCGLPKFSRK 444
                                   306       316       326       336       346       356       366       376       386       396       406       416       426       436

Chain D from PDB  Type:PROTEIN  Length:251
 aligned with MASP1_HUMAN | P48740 from UniProtKB/Swiss-Prot  Length:699

    Alignment length:251
                                   458       468       478       488       498       508       518       528       538       548       558       568       578       588       598       608       618       628       638       648       658       668       678       688       698 
          MASP1_HUMAN   449 IFNGRPAQKGTTPWIAMLSHLNGQPFCGGSLLGSSWIVTAAHCLHQSLDPEDPTLRDSDLLSPSDFKIILGKHWRLRSDENEQHLGVKHTTLHPQYDPNTFENDVALVELLESPVLNAFVMPICLPEGPQQEGAMVIVSGWGKQFLQRFPETLMEIEIPIVDHSTCQKAYAPLKKKVTRDMICAGEKEGGKDACAGDSGGPMVTLNRERGQWYLVGTVSWGDDCGKKDRYGVYSYIHHNKDWIQRVTGVRN 699
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....ee........eeeeee....eeeeeeee...eeeee.hhhh....................eeeee............eee.eeeeee............eeeeee........................eeeeee...hhhhh.....eeeeeeeehhhhhhhhhh.........eeee................eeeee......eeeeeeeeee.........eeeeehhhhhhhhhhhh.... Sec.struct. author
                 SAPs(SNPs) -----------------------------------------------------------------------------------------------------------------------A--------------------------------------------------------------------------------------------------------------R-------------------- SAPs(SNPs)
                PROSITE (1) TRYPSIN_DOM  PDB: D:449-696 UniProt: 449-696                                                                                                                                                                                                            --- PROSITE (1)
                PROSITE (2) -------------------------------------TRYPSI----------------------------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER ------------------------------------------------ PROSITE (2)
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4djz D 449 IFNGRPAQKGTTPWIAMLSHLNGQPFCGGSLLGSSWIVTAAHCLHQSLDPKDPTLRDSDLLSPSDFKIILGKHWRLRSDENEQHLGVKHTTLHPQYDPNTFENDVALVELLESPVLNAFVMPICLPEGPQQEGAMVIVSGWGKQFLQRFPETLMEIEIPIVDHSTCQKAYAPLKKKVTRDMICAGEKEGGKDACAGDSGGPMVTLNRERGQWYLVGTVSWGDDCGKKDRYGVYSYIHHNKDWIQRVTGVRN 699
                                   458       468       478       488       498       508       518       528       538       548       558       568       578       588       598       608       618       628       638       648       658       668       678       688       698

Chain H from PDB  Type:PROTEIN  Length:34
 aligned with SGP1_SCHGR | O46162 from UniProtKB/Swiss-Prot  Length:92

    Alignment length:34
                                    67        77        87    
           SGP1_SCHGR    58 VTCEPGTTFKDKCNTCRCGSDGKSAACTLKACPQ  91
               SCOP domains ---------------------------------- SCOP domains
               CATH domains ---------------------------------- CATH domains
               Pfam domains ---------------------------------- Pfam domains
         Sec.struct. author .......eeee..eeeee......eeee...... Sec.struct. author
                 SAPs(SNPs) ---------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------- PROSITE
                 Transcript ---------------------------------- Transcript
                 4djz H   5 VTCEPGTTFKDKCNTCRCGSDGKSAFCTRKLCYQ  38
                                    14        24        34

Chain I from PDB  Type:PROTEIN  Length:33
 aligned with SGP1_SCHGR | O46162 from UniProtKB/Swiss-Prot  Length:92

    Alignment length:33
                                    68        78        88   
           SGP1_SCHGR    59 TCEPGTTFKDKCNTCRCGSDGKSAACTLKACPQ  91
               SCOP domains --------------------------------- SCOP domains
               CATH domains --------------------------------- CATH domains
               Pfam domains --------------------------------- Pfam domains
         Sec.struct. author ......eeee..eeeee......eeee...... Sec.struct. author
                 SAPs(SNPs) --------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------- PROSITE
                 Transcript --------------------------------- Transcript
                 4djz I   6 TCEPGTTFKDKCNTCRCGSDGKSAFCTRKLCYQ  38
                                    15        25        35

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 4DJZ)

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

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

Asymmetric Unit(hide GO term definitions)

Chain A,B,C,D (MASP1_HUMAN | P48740)

molecular function
	GO:0005509	calcium ion binding	Interacting selectively and non-covalently with calcium ions (Ca2+).
	GO:0048306	calcium-dependent protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules), in the presence of calcium.
	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:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
	GO:0042803	protein homodimerization activity	Interacting selectively and non-covalently with an identical protein to form a homodimer.
	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:0006956	complement activation	Any process involved in the activation of any of the steps of the complement cascade, which allows for the direct killing of microbes, the disposal of immune complexes, and the regulation of other immune processes; the initial steps of complement activation involve one of three pathways, the classical pathway, the alternative pathway, and the lectin pathway, all of which lead to the terminal complement pathway.
	GO:0001867	complement activation, lectin pathway	Any process involved in the activation of any of the steps of the lectin pathway of the complement cascade which allows for the direct killing of microbes and the regulation of other immune processes.
	GO:0002376	immune system process	Any process involved in the development or functioning of the immune system, an organismal system for calibrated responses to potential internal or invasive threats.
	GO:0045087	innate immune response	Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.
	GO:0045916	negative regulation of complement activation	Any process that stops, prevents, or reduces the frequency, rate or extent of complement activation.
	GO:0006508	proteolysis	The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
	GO:0006898	receptor-mediated endocytosis	An endocytosis process in which cell surface receptors ensure specificity of transport. A specific receptor on the cell surface binds tightly to the extracellular macromolecule (the ligand) that it recognizes; the plasma-membrane region containing the receptor-ligand complex then undergoes endocytosis, forming a transport vesicle containing the receptor-ligand complex and excluding most other plasma-membrane proteins. Receptor-mediated endocytosis generally occurs via clathrin-coated pits and vesicles.
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 H,I (SGP1_SCHGR | O46162)

molecular function
	GO:0030414	peptidase inhibitor activity	Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds.
	GO:0004867	serine-type endopeptidase inhibitor activity	Stops, prevents or reduces the activity of serine-type endopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain; a serine residue (and a histidine residue) are at the active center of the enzyme.
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.
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.

Asymmetric Unit
	Complete Structure
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	Ligands, Modified Residues, Ions
(no "Ligands, Modified Residues, Ions" information available for 4djz)

	Sites
(no "Sites" information available for 4djz)

	Cis Peptide Bonds
		Ala B:619 - Pro B:620	[ RasMol ]
		Ala D:619 - Pro D:620	[ RasMol ]
		Arg B:655 - Glu B:656	[ RasMol ]
		Arg D:655 - Glu D:656	[ RasMol ]
		Asp A:338 - Asn A:339	[ RasMol ]
		Glu A:313 - Pro A:314	[ RasMol ]
		Glu A:399 - Pro A:400	[ RasMol ]
		Glu C:313 - Pro C:314	[ RasMol ]
		Glu C:399 - Pro C:400	[ RasMol ]

Biological Units
	Complete Structure
		Biological Unit 1	[ Jena3D ]
		Biological Unit 2	[ Jena3D ]

Jmol
	protein: cartoon or spacefill or dots and stick; nucleic acid: cartoon and stick; ligands: spacefill; active site: stick [ Asym. Unit PNG format \| Biol. Unit 1 PNG format \| Biol. Unit 2 PNG format ](automatic orientation, automatically generated)
Molscript
	protein, nucleic acid: cartoon; ligands: spacefill; active site: ball and stick [ mono PDF format \| stereo PDF format ](default orientation, automatically generated)

Access by PDB/NDB ID
	4djz
		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)
		Structural Genomics	:	GeneCensus
		Structural Neighbours	:	CE \| VAST
		Structure Classification	:	CATH \| Dali \| SCOP
		Validation and Original Data	:	BMRB Data View \| BMRB Restraints Grid \| EDS \| PROCHECK \| RECOORD \| WHAT_CHECK

Access by UniProt ID/Accession number
	MASP1_HUMAN \| P48740
		Comparative Protein Structure Models	:	ModBase
		Genomic Information	:	Ensembl
		Protein-protein Interaction	:	DIP
		Sequence, Family and Domain Information	:	InterPro \| Pfam \| SMART \| UniProtKB/SwissProt
	SGP1_SCHGR \| O46162
		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)
	3.4.21.-
		General Enzyme Information	:	BRENDA \| EC-PDB \| Enzyme \| IntEnz
		Pathway	:	KEGG \| MetaCyc

Access by Disease Identifier (MIM ID)
	(no 'MIM ID' available)
		Disease Information	:	OMIM

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

Access by PDB/NDB ID
		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
	MASP1_HUMAN \| P48740
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)
	SGP1_SCHGR \| O46162
		Protein Disorder Prediction	:	DisEMBL \| FoldIndex \| GLOBPLOT (for more information see DisProt)

UniProtKB/Swiss-Prot
	MASP1_HUMAN \| P48740	:	3dem 3gov 4aqb 4igd 4iw4 4kkd
	SGP1_SCHGR \| O46162	:	1kgm 1kio 1kj0 2f91 2xtt 3tvj

3tvj	MASP-1 AND MASP-2 SPECIFIC INHIBITORS WERE DEVELOPED ON THE SAME SCAFFOLD

Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (0, 0)

Sites (0, 0)

SS Bonds (22, 22)

Cis Peptide Bonds (9, 9)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (2, 4)

PROSITE Motifs (4, 10)

Exons (0, 0)

Sequences/Alignments

Classification and Annotation

SCOP Domains (0, 0)

CATH Domains (0, 0)

Pfam Domains (0, 0)

Gene Ontology (22, 23)

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