1ELV - JenaLib

Asymmetric Unit (7, 7)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	ASN A:391 , SER A:393 , PRO A:401 , NAG A:1002 , FUC A:1003	BINDING SITE FOR RESIDUE NAG A 1001
2	AC2	SOFTWARE	HOH A:86 , HOH A:197 , HOH A:246 , HOH A:252 , HOH A:319 , GLY A:400 , PRO A:401 , NAG A:1001	BINDING SITE FOR RESIDUE NAG A 1002
3	AC3	SOFTWARE	HOH A:8 , HOH A:9 , HOH A:129 , HOH A:224 , HIS A:387 , ALA A:389 , PRO A:443 , TRP A:444 , NAG A:1001	BINDING SITE FOR RESIDUE FUC A 1003
4	AC4	SOFTWARE	HOH A:9 , HOH A:47 , HOH A:139 , HOH A:209 , HIS A:460 , LYS A:614 , GLY A:615 , SER A:617	BINDING SITE FOR RESIDUE SO4 A 2001
5	AC5	SOFTWARE	HOH A:34 , ARG A:561 , ALA A:564 , VAL A:565 , ARG A:566 , LYS A:568	BINDING SITE FOR RESIDUE SO4 A 2002
6	AC6	SOFTWARE	HOH A:5 , HOH A:53 , HOH A:175 , HOH A:214 , HIS A:496 , ASN A:513 , ASN A:600 , ASN A:655 , TYR A:656 , ASP A:658 , TRP A:659	BINDING SITE FOR RESIDUE NES A 2003
7	CAT	AUTHOR	HIS A:460 , ASP A:514 , SER A:617	THE CATALYTIC TRIAD IS: HIS A460 (57), ASP A514 (102), SER A617 (195) (RESIDUE NUMBERS IN THE REFERENCE CHYMOTRYPSINOGEN MOLECULE).

SS Bonds (4, 4)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (1, 1)

PROSITE Motifs (3, 3)

Exons (3, 3)

Asymmetric/Biological Unit (3, 3)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.5b	ENST00000360817	5b	ENSE00001554821	chr12:7167980-7168181	202	C1S_HUMAN	-	0	0	-	-
1.6d	ENST00000360817	6d	ENSE00001805598	chr12:7169143-7169221	79	C1S_HUMAN	1-2	2	0	-	-
1.7b	ENST00000360817	7b	ENSE00001609294	chr12:7169779-7169986	208	C1S_HUMAN	2-71	70	0	-	-
1.8c	ENST00000360817	8c	ENSE00001307751	chr12:7170194-7170371	178	C1S_HUMAN	72-131	60	0	-	-
1.10e	ENST00000360817	10e	ENSE00001327036	chr12:7171571-7171696	126	C1S_HUMAN	131-173	43	0	-	-
1.11b	ENST00000360817	11b	ENSE00001308911	chr12:7172404-7172603	200	C1S_HUMAN	173-239	67	0	-	-
1.12b	ENST00000360817	12b	ENSE00001322783	chr12:7173121-7173274	154	C1S_HUMAN	240-291	52	0	-	-
1.12g	ENST00000360817	12g	ENSE00001560603	chr12:7173822-7173937	116	C1S_HUMAN	291-329	39	0	-	-
1.12j	ENST00000360817	12j	ENSE00001319673	chr12:7174343-7174421	79	C1S_HUMAN	330-356	27	0	-	-
1.13c	ENST00000360817	13c	ENSE00001777929	chr12:7174947-7175075	129	C1S_HUMAN	356-399	44	1	A:342-384 (gaps)	43
1.15b	ENST00000360817	15b	ENSE00001604953	chr12:7175760-7175834	75	C1S_HUMAN	399-424	26	1	A:384-409	26
1.17c	ENST00000360817	17c	ENSE00001884879	chr12:7177159-7178247	1089	C1S_HUMAN	424-688	265	1	A:409-668 (gaps)	260

Sequences/Alignments

Asymmetric/Biological Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:303
 aligned with C1S_HUMAN | P09871 from UniProtKB/Swiss-Prot  Length:688

    Alignment length:327
                                   366       376       386       396       406       416       426       436       446       456       466       476       486       496       506       516       526       536       546       556       566       576       586       596       606       616       626       636       646       656       666       676       
            C1S_HUMAN   357 VDCGIPESIENGKVEDPESTLFGSVIRYTCEEPYYYMENGGGGEYHCAGNGSWVNEVLGPELPKCVPVCGVPREPFEEKQRIIGGSDADIKNFPWQVFFDNPWAGGALINEYWVLTAAHVVEGNREPTMYVGSTSVQTSRLAKSKMLTPEHVFIHPGWKLLEVPEGRTNFDNDIALVRLKDPVKMGPTVSPICLPGTSSDYNLMDGDLGLISGWGRTEKRDRAVRLKAARLPVAPLRKCKEVKVEKPTADAEAYVFTPNMICAGGEKGMDSCKGDSGGAFAVQDPNDKTKFYAAGLVSWGPQCGTYGLYTRVKNYVDWIMKTMQENS 683
               SCOP domains d1elva2 A:342-409 Complement C1S prote  ase domain                  d1elva1      A:410-668 Complement C1S protease, catalytic domain                                                                                                                                                                                                    SCOP domains
               CATH domains 1elvA03 A:342-409 Complement Module, d  omain 1                     --------     1elvA02       1elvA01 A:437-532,A:656-664 Trypsin-like s       erine proteases                                -1elvA02 A:423-436,A:534-655 Trypsin-like serine pr          oteases                                                       1elvA01  ---- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........eee..........eeeeee....eee.--...eeee.....ee..........eee.........-----.......hhhhh..eeee....eeeeeee..eeeehhhhhh......ee.......-------.ee.eeeeee....................eeeee..................hhhhh.....eeeeee.............eeeeeeeehhhhhhh.----------.......eeeee..............eeeee.......eeeeeeeee......eeeeee...hhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------H------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                PROSITE (1) SUSHI  PDB: A:343-408 UniProt: 357-423                             --------------TRYPSIN_DOM  PDB: A:423-665 UniProt: 438-680                                                                                                                                                                                                       --- PROSITE (1)
                PROSITE (2) -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------TRYPSIN_SER ---------------------------------------------- PROSITE (2)
           Transcript 1 (1) Exon 1.13c  PDB: A:342-384 (gaps)          ------------------------Exon 1.17c  PDB: A:409-668 (gaps) UniProt: 424-688 [INCOMPLETE]                                                                                                                                                                                                      Transcript 1 (1)
           Transcript 1 (2) ------------------------------------------Exon 1.15b  PDB: A:384-409------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript 1 (2)
                 1elv A 342 LDCGIPESIENGKVEDPESTLFGSVIRYTCEEPYYYME--GGGEYHCAGNGSWVNEVLGPELPKCVPVCGVPREPF-----IIGGSDADIKNFPWQVFFDNPWAGGALINEYWVLTAAHVVEGNREPTMYVGSTSVQ-------KMLTPEHVFIHPGWKLLAVPEGRTNFDNDIALVRLKDPVKMGPTVSPICLPGTSSDYNLMDGDLGLISGWGRTEKRDRAVRLKAARLPVAPLRKCKEV----------AYVFTPNMICAGGEKGMDSCKGDSGGAFAVQDPNDKTKFYAAGLVSWGPQCGTYGLYTRVKNYVDWIMKTMQENS 668
                                   351       361       371       | -|      391       401       411     |   - |     431       441       451       461       471      |  -    |  491       501       511       521       531       541       551       561       571       581 |       -  |    601       611       621       631       641       651       661       
                                                               379  |                                417   423                                                    478     486                                                                                              583        594                                                                          
                                                                  382

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 '\|'

Classification and Annotation

SCOP Domains (2, 2)

CATH Domains (2, 3)

Pfam Domains (0, 0)

Gene Ontology (16, 16)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (C1S_HUMAN | P09871)

molecular function
	GO:0005509	calcium ion binding	Interacting selectively and non-covalently with calcium ions (Ca2+).
	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:0042802	identical protein binding	Interacting selectively and non-covalently with an identical protein or proteins.
	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: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:0006958	complement activation, classical pathway	Any process involved in the activation of any of the steps of the classical pathway of the complement cascade which allows for the direct killing of microbes, the disposal of immune complexes, 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:0006508	proteolysis	The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
cellular component
	GO:0072562	blood microparticle	A phospholipid microvesicle that is derived from any of several cell types, such as platelets, blood cells, endothelial cells, or others, and contains membrane receptors as well as other proteins characteristic of the parental cell. Microparticles are heterogeneous in size, and are characterized as microvesicles free of nucleic acids.
	GO:0070062	extracellular exosome	A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm.
	GO:0005576	extracellular region	The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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	Cis Peptide Bonds
		Asn A:442 - Pro A:443	[ RasMol ]
		Glu A:373 - Pro A:374	[ RasMol ]

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	1elv
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	C1S_HUMAN \| P09871
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	3.4.21.42
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Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (4, 6)

Sites (7, 7)