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C2 (complement C2)
Gene
Gene miRNA Gene ontology Other IDs Protein Pathways Associated diseases
Entrez ID Entrez Gene ID - the GENE ID in NCBI Gene database.
717
Gene nameGene Name - the full gene name approved by the HGNC.
Complement C2
Gene symbolGene Symbol - the official gene symbol approved by the HGNC, which is a short abbreviated form of the gene name.
C2
SynonymsGene synonyms aliases
ARMD14, CO2
ChromosomeChromosome number
6
Chromosome locationChromosomal Location - indicates the cytogenetic location of the gene or region on the chromosome.
6p21.33
SummarySummary of gene provided in NCBI Entrez Gene.
Component C2 is a serum glycoprotein that functions as part of the classical pathway of the complement system. Activated C1 cleaves C2 into C2a and C2b. The serine proteinase C2a then combines with complement factor 4b to create the C3 or C5 convertase. Deficiency of C2 has been reported to associated with certain autoimmune diseases and SNPs in this gene have been associated with altered susceptibility to age-related macular degeneration. This gene localizes within the class III region of the MHC on the short arm of chromosome 6. Alternative splicing results in multiple transcript variants encoding distinct isoforms. Additional transcript variants have been described in publications but their full-length sequence has not been determined.[provided by RefSeq, Mar 2009]
miRNAmiRNA information provided by mirtarbase database.
Gene miRNA Gene ontology Other IDs Protein Pathways Associated diseases
miRTarBase ID miRNA Experiments Reference
MIRT017726 hsa-miR-335-5p Microarray 18185580
MIRT021561 hsa-miR-142-3p Microarray 17612493
Gene ontology (GO)Gene ontology information of associated ontologies with gene provided by GO database.
Gene miRNA Gene ontology Other IDs Protein Pathways Associated diseases
GO ID Ontology Definition Evidence Reference
GO:0004252 Function Serine-type endopeptidase activity IEA
GO:0005515 Function Protein binding IPI 25910212, 32296183
GO:0005576 Component Extracellular region TAS
GO:0005615 Component Extracellular space TAS 8621452
GO:0006508 Process Proteolysis IEA
Other IDsOther ids provides unique ids of gene in databases such as OMIM, HGNC, ENSEMBLE.
Gene miRNA Gene ontology Other IDs Protein Pathways Associated diseases
MIM
HGNC
e!Ensembl
Protein
Gene miRNA Gene ontology Other IDs Protein Pathways Associated diseases
UniProt ID P06681
Protein name Complement C2 (EC 3.4.21.43) (C3/C5 convertase) [Cleaved into: Complement C2b fragment; Complement C2a fragment]
Protein function Component C2 which is part of the classical pathway of the complement system is cleaved by activated factor C1 into two fragments: C2b and C2a. C2a, a serine protease, then combines with complement factor C4b to generate the C3 or C5 convertase.
PDB 2I6Q , 2I6S , 2ODP , 2ODQ , 3ERB
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00084 Sushi
89 → 144
Sushi repeat (SCR repeat)
 Domain
PF00084 Sushi
151 → 204
Sushi repeat (SCR repeat)
 Domain
PF00092 VWA
254 → 451
von Willebrand factor type A domain
 Domain
PF00089 Trypsin
466 → 711
Trypsin
 Domain
Sequence
Sequence length 752
Interactions View interactions
PathwaysPathway information has different metabolic/signaling pathways associated with genes. Each record is hyperlinked to a complete information page which also includes links to the KEGG/Reactome pathway database.
Gene miRNA Gene ontology Other IDs Protein Pathways Associated diseases
 
KEGG
  
Reactome
  Complement and coagulation cascades
Alcoholic liver disease
Pertussis
Staphylococcus aureus infection
Coronavirus disease - COVID-19
Systemic lupus erythematosus 		  Initial triggering of complement
Activation of C3 and C5
Regulation of Complement cascade
Associated diseases
Gene miRNA Gene ontology Other IDs Protein Pathways Associated diseases
Causal
Disease name Disease term dbSNP ID References
Diabetes mellitus Diabetes Mellitus, Diabetes Mellitus, Insulin-Dependent rs587776515, rs61730328, rs606231121, rs606231122, rs79020217, rs77625743, rs78378398, rs606231123, rs4402960, rs1362648752, rs3745368, rs3792267, rs3842570, rs5030952, rs2975760, rs119489103, rs7903146, rs12255372, rs11196205, rs104893649, rs80356624, rs80356616, rs80356625, rs80356611, rs104894237, rs80356613, rs137852740, rs137852786, rs387906407, rs151344623, rs28938469, rs28936371, rs137852672, rs80356637, rs80356642, rs80356653, rs137852673, rs137852674, rs80356634, rs80356651, rs193929360, rs137853334, rs137853335, rs137853336, rs-1, rs1600731198, rs137853338, rs121964882, rs121964883, rs387906511, rs121964884, rs121964885, rs2147483647, rs387906512, rs121964887, rs121964888, rs121964889, rs121964890, rs121964891, rs28934878, rs74315383, rs121964893, rs886037620, rs886037621, rs80356663, rs121434593, rs121913150, rs587776825, rs137853236, rs2135842335, rs137853237, rs137853238, rs2135818776, rs1566092470, rs1463923467, rs137853243, rs137853244, rs2135839114, rs137853245, rs2135847417, rs121918407, rs104894005, rs104894006, rs80356655, rs104894008, rs104894009, rs104894010, rs104894011, rs80356654, rs104894016, rs193929376, rs193929374, rs193929375, rs193929373, rs80356666, rs80356669, rs80356664, rs193929366, rs1048095, rs193929355, rs193929356, rs1259467443, rs104893642, rs387906777, rs387906779, rs141804752, rs182349376, rs184917682, rs193922396, rs193922400, rs193922401, rs137852676, rs193922407, rs193922638, rs193922257, rs193922258, rs193922259, rs193922260, rs193922261, rs193922262, rs193922263, rs193922264, rs193922265, rs193922268, rs193921338, rs193922269, rs193922272, rs193922273, rs193922275, rs193922278, rs193922279, rs193922280, rs193922281, rs193922282, rs193922283, rs193922284, rs193922286, rs193922287, rs193922289, rs193922291, rs193922295, rs193922297, rs193922300, rs193922302, rs193922303, rs193922308, rs193922313, rs193922314, rs144723656, rs193922315, rs193922316, rs193922317, rs148311934, rs193922319, rs193922320, rs193922326, rs193922329, rs193922330, rs193922331, rs193922335, rs193922336, rs193922338, rs193922340, rs193922341, rs193922471, rs193922475, rs193922476, rs193922479, rs193922355, rs193922356, rs193922576, rs193922578, rs193922582, rs193922588, rs193922592, rs193922594, rs193922596, rs386134267, rs193922598, rs193922599, rs193922600, rs193922604, rs193922605, rs397514580, rs397515519, rs267601516, rs587780343, rs587780345, rs587780346, rs587780347, rs587780357, rs148954387, rs61736969, rs587783673, rs587783672, rs587783669, rs786204676, rs794727236, rs151344624, rs794727775, rs794727839, rs199946797, rs869320673, rs796065047, rs759072800, rs797045595, rs797045209, rs797045207, rs797045213, rs797045623, rs863225280, rs149703259, rs864321656, rs139964066, rs777870079, rs878853246, rs769268803, rs886039380, rs886041392, rs886041391, rs886042610, rs143064649, rs1057516192, rs746480424, rs1057516281, rs576684889, rs754728827, rs1057520291, rs1057520779, rs893256143, rs1057520504, rs1057524790, rs1057524902, rs1057524904, rs1057524905, rs764232985, rs1064793998, rs1064794268, rs769086289, rs369429452, rs1085307913, rs1131691416, rs765432081, rs1131692182, rs748749585, rs1554335441, rs762263694, rs1312678560, rs767565869, rs1375656631, rs1554335391, rs1360415315, rs1554335616, rs1554335752, rs1554909277, rs769518471, rs757171524, rs768951263, rs762703502, rs1555212248, rs1555212359, rs1555813319, rs1555816654, rs371977235, rs76474829, rs200998587, rs1415041911, rs1554334894, rs1260178539, rs1554335421, rs1555211904, rs779184183, rs1554335564, rs200670692, rs1400535021, rs1554334872, rs1555212749, rs1553876668, rs1553878211, rs954727530, rs1554924035, rs372307320, rs925231098, rs1554913069, rs1554933565, rs766431403, rs746714109, rs751279984, rs770664202, rs1008906426, rs758844607, rs1554924540, rs1566092307, rs753998395, rs1565885935, rs1167124132, rs1376796469, rs556436603, rs1562715657, rs1486280029, rs1564869850, rs755259997, rs769569410, rs1172328722, rs1286294151, rs1375557127, rs1568731279, rs1562715426, rs556581174, rs1564865302, rs1565886545, rs776793516, rs1568724014, rs1392795567, rs781260712, rs1562719705, rs1382448285, rs1564977373, rs750586210, rs1598842892, rs1583592247, rs780612692, rs1593060859, rs1476637197, rs751279776, rs1593060890, rs1191912908, rs1167675604, rs1583601110, rs1593058932, rs778611627, rs753296261 31451708, 17632545
Age-related macular degeneration MACULAR DEGENERATION, AGE-RELATED, 14, Age related macular degeneration rs2133900556, rs199474657, rs2274700, rs1410996, rs61750120, rs1800728, rs62654397, rs61749423, rs61751412, rs61749439, rs61751398, rs61752417, rs62645946, rs1801269, rs62646860, rs61750142, rs61750145, rs61750152, rs61751377, rs61753029, rs61751407, rs61751389, rs61750645, rs61750648, rs879255520, rs752147871, rs886044750, rs886044749, rs746541266, rs756840095, rs886044725, rs749526785, rs1057518955, rs1057518767, rs371489809, rs1064793014, rs1571264574, rs1659524475 22705344, 20385819, 21665990, 16518403, 22694956, 23577725
Schizophrenia Schizophrenia rs74315508, rs74315509, rs13447324, rs1558507406, rs387906932, rs387906933, rs-1, rs863223354, rs863223355, rs776061422, rs863223349, rs748809996, rs759748655, rs863223353, rs863223350, rs863223356, rs781821239, rs863223348, rs863223346, rs863223347, rs863223351, rs863223352, rs61734270, rs797045205, rs869312829, rs869312830, rs770913157, rs869312832, rs869312831, rs781720548, rs1262969313 28540026
Myasthenia gravis Myasthenia Gravis rs5030818, rs121912815, rs121912817, rs121912818, rs121912821, rs75466054, rs121912822, rs121912823, rs794727516, rs764497513, rs376808313, rs1279554995, rs1554802792, rs369251527, rs372760913, rs1554802808, rs769234940, rs201439531, rs1272947184, rs757303526, rs-1, rs760936252, rs1590576560, rs1838635262 23055271
Unknown
Disease name Disease term dbSNP ID References
Endometriosis Endometriosis rs1800629, rs-1, rs1143634 28881265
Dermatomyositis Dermatomyositis, Adult type dermatomyositis, Dermatomyositis, Childhood Type 3501473
Development disorder Child Development Disorders, Pervasive 28540026
Exudative macular degeneration Exudative age-related macular degeneration, exudative macular degeneration 22705344

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