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Protein

Complement component C9

Gene

C9

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the ‘correct annotation’ for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at transcript leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the ‘protein existence’ evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Constituent of the membrane attack complex (MAC) that plays a key role in the innate and adaptive immune response by forming pores in the plasma membrane of target cells. C9 is the pore-forming subunit of the MAC.By similarity

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Biological processComplement alternate pathway, Complement pathway, Cytolysis, Immunity, Innate immunity

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-BTA-166665 Terminal pathway of complement
R-BTA-977606 Regulation of Complement cascade

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Complement component C9
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: ‘Name’, ‘Synonyms’, ‘Ordered locus names’ and ‘ORF names’.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:C9
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiBos taurus (Bovine)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the ‘taxonomic identifier’ or ‘taxid’.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri9913 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000009136 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 20

Organism-specific databases

Vertebrate Gene Nomenclature Database

More...
VGNCi
VGNC:26647 C9

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei319 – 335Beta strandedSequence analysisAdd BLAST17
Transmembranei340 – 359Beta strandedSequence analysisAdd BLAST20

Keywords - Cellular componenti

Membrane, Membrane attack complex, Secreted, Target cell membrane, Target membrane

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 21Sequence analysisAdd BLAST21
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_000004578322 – 548Complement component C9Add BLAST527

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi41 ↔ 76By similarity
Disulfide bondi52 ↔ 86By similarity
Disulfide bondi55 ↔ 92By similarity
Disulfide bondi99 ↔ 110By similarity
Disulfide bondi105 ↔ 123By similarity
Disulfide bondi117 ↔ 132By similarity
Disulfide bondi140 ↔ 179By similarity
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi456N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi515 ↔ 531By similarity
Disulfide bondi518 ↔ 533By similarity
Disulfide bondi535 ↔ 544By similarity

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

Thrombin cleaves factor C9 to produce C9a and C9b.By similarity
The structure of the human polymeric form indicates the existence of an additional disulfide bond compared to the mouse monomeric form.Curated

Keywords - PTMi

Disulfide bond, Glycoprotein

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
Q3MHN2

PeptideAtlas

More...
PeptideAtlasi
Q3MHN2

PRoteomics IDEntifications database

More...
PRIDEi
Q3MHN2

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSBTAG00000016149 Expressed in 5 organ(s), highest expression level in liver

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Component of the membrane attack complex (MAC). MAC assembly is initiated by proteolytic cleavage of C5 into C5a and C5b. C5b binds sequentially C6, C7, C8 and multiple copies of the pore-forming subunit C9. About 20 C9 chains oligomerize to give rise to a huge beta-barrel that forms a 100 Angstrom diameter pore in target membranes.By similarity

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
9913.ENSBTAP00000021495

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

More...
ProteinModelPortali
Q3MHN2

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
Q3MHN2

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini40 – 93TSP type-1PROSITE-ProRule annotationAdd BLAST54
Domaini97 – 134LDL-receptor class APROSITE-ProRule annotationAdd BLAST38
Domaini136 – 514MACPFPROSITE-ProRule annotationAdd BLAST379
Domaini515 – 545EGF-likeAdd BLAST31

<p>This subsection of the ‘Family and domains’ section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the complement C6/C7/C8/C9 family.Curated

Keywords - Domaini

EGF-like domain, Signal, Transmembrane, Transmembrane beta strand

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG410IH3C Eukaryota
ENOG410XT9A LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000159777

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000111869

The HOVERGEN Database of Homologous Vertebrate Genes

More...
HOVERGENi
HBG106792

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
Q3MHN2

KEGG Orthology (KO)

More...
KOi
K04000

Identification of Orthologs from Complete Genome Data

More...
OMAi
GINILGM

Database of Orthologous Groups

More...
OrthoDBi
787014at2759

TreeFam database of animal gene trees

More...
TreeFami
TF330498

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00112 LDLa, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.20.100.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR037567 Complement_C9
IPR013032 EGF-like_CS
IPR009030 Growth_fac_rcpt_cys_sf
IPR023415 LDLR_class-A_CS
IPR002172 LDrepeatLR_classA_rpt
IPR001862 MAC_perforin
IPR020864 MACPF
IPR020863 MACPF_CS
IPR000884 TSP1_rpt
IPR036383 TSP1_rpt_sf

The PANTHER Classification System

More...
PANTHERi
PTHR19325:SF362 PTHR19325:SF362, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00057 Ldl_recept_a, 1 hit
PF01823 MACPF, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00764 COMPLEMENTC9

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00192 LDLa, 1 hit
SM00457 MACPF, 1 hit
SM00209 TSP1, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF57184 SSF57184, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00022 EGF_1, 1 hit
PS01209 LDLRA_1, 1 hit
PS50068 LDLRA_2, 1 hit
PS00279 MACPF_1, 1 hit
PS51412 MACPF_2, 1 hit
PS50092 TSP1, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

Q3MHN2-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSAGQRFAFA ICILEISLLR AGPTPSYDPA ERQGTPLPID CRMSSWSEWS
60 70 80 90 100
KCDPCLKQMF RSRSIEIFGQ FNGRKCVDAV GDRQQCVPTE ACEDPEEGCG
110 120 130 140 150
NDFQCGTGRC IKNRLLCNED NDCGDYSDED NCEQDPRPPC RNRVVEESEL
160 170 180 190 200
ARTAGFGINI LGMDPLSTPF DNQYYNGLCD RVWDGNTLTY YRRPWNVASL
210 220 230 240 250
TYDTKADKNF RTENHEESIQ ILRTIIEEKK LNFNAGLSVK YTPVEAIEKN
260 270 280 290 300
KCVDLEHSDK GSTSSPSKLA AEAKFRFTYS KDDIYRLLSS YSAKQEKMFL
310 320 330 340 350
HVKGKVHLGR FVMRSRDVML QTTFLDSINT LPTTYEKGEY FAFLETYGTH
360 370 380 390 400
YSSSGSLGGL YELIYVLDKK SMEQKDIELR DVQRCLGFDL DLSLKVGVEV
410 420 430 440 450
TGNFDSKLCS KKGMGQTETN PEADLFDDVI TFIRGGTRKY ATELKEKLLR
460 470 480 490 500
GARMINVTDF VNWAASLNHA PVLISQKLVP IYDLIPVKMK DAHLKKQNLE
510 520 530 540
RAIEDYINEF SVRKCQPCQN GGTVVLLDGE CVCSCPKEFK GVACEIKK
Length:548
Mass (Da):61,998
Last modified:October 25, 2005 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i69402AB0B20237F9
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
BC105174 mRNA Translation: AAI05175.1

NCBI Reference Sequences

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RefSeqi
NP_001030441.1, NM_001035364.2
XP_015314577.1, XM_015459091.1

UniGene gene-oriented nucleotide sequence clusters

More...
UniGenei
Bt.14139

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSBTAT00000021495; ENSBTAP00000021495; ENSBTAG00000016149

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
526766

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
bta:526766

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC105174 mRNA Translation: AAI05175.1
RefSeqiNP_001030441.1, NM_001035364.2
XP_015314577.1, XM_015459091.1
UniGeneiBt.14139

3D structure databases

ProteinModelPortaliQ3MHN2
SMRiQ3MHN2
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000021495

Proteomic databases

PaxDbiQ3MHN2
PeptideAtlasiQ3MHN2
PRIDEiQ3MHN2

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSBTAT00000021495; ENSBTAP00000021495; ENSBTAG00000016149
GeneIDi526766
KEGGibta:526766

Organism-specific databases

VGNCiVGNC:26647 C9

Phylogenomic databases

eggNOGiENOG410IH3C Eukaryota
ENOG410XT9A LUCA
GeneTreeiENSGT00940000159777
HOGENOMiHOG000111869
HOVERGENiHBG106792
InParanoidiQ3MHN2
KOiK04000
OMAiGINILGM
OrthoDBi787014at2759
TreeFamiTF330498

Enzyme and pathway databases

ReactomeiR-BTA-166665 Terminal pathway of complement
R-BTA-977606 Regulation of Complement cascade

Gene expression databases

BgeeiENSBTAG00000016149 Expressed in 5 organ(s), highest expression level in liver

Family and domain databases

CDDicd00112 LDLa, 1 hit
Gene3Di2.20.100.10, 1 hit
InterProiView protein in InterPro
IPR037567 Complement_C9
IPR013032 EGF-like_CS
IPR009030 Growth_fac_rcpt_cys_sf
IPR023415 LDLR_class-A_CS
IPR002172 LDrepeatLR_classA_rpt
IPR001862 MAC_perforin
IPR020864 MACPF
IPR020863 MACPF_CS
IPR000884 TSP1_rpt
IPR036383 TSP1_rpt_sf
PANTHERiPTHR19325:SF362 PTHR19325:SF362, 1 hit
PfamiView protein in Pfam
PF00057 Ldl_recept_a, 1 hit
PF01823 MACPF, 1 hit
PRINTSiPR00764 COMPLEMENTC9
SMARTiView protein in SMART
SM00192 LDLa, 1 hit
SM00457 MACPF, 1 hit
SM00209 TSP1, 1 hit
SUPFAMiSSF57184 SSF57184, 1 hit
PROSITEiView protein in PROSITE
PS00022 EGF_1, 1 hit
PS01209 LDLRA_1, 1 hit
PS50068 LDLRA_2, 1 hit
PS00279 MACPF_1, 1 hit
PS51412 MACPF_2, 1 hit
PS50092 TSP1, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the ‘Entry information’ section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiCO9_BOVIN
<p>This subsection of the ‘Entry information’ section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called ‘Primary (citable) accession number’.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q3MHN2
<p>This subsection of the ‘Entry information’ section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification (‘Last modified’). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 24, 2006
Last sequence update: October 25, 2005
Last modified: January 16, 2019
This is version 88 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the ‘Entry information’ section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

<p>This section contains any relevant information that doesn’t fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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