Gene Gene information from NCBI Gene database.
Entrez ID 731
Gene name Complement C8 alpha chain
Gene symbol C8A
Synonyms (NCBI Gene)
-
Chromosome 1
Chromosome location 1p32.2
Summary C8 is a component of the complement system and contains three polypeptides, alpha, beta and gamma. This gene encodes the alpha subunit of C8. C8 participates in the formation of the membrane attack complex (MAC). The MAC assembles on bacterial membranes t
miRNA miRNA information provided by mirtarbase database.
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miRTarBase ID miRNA Experiments Reference
MIRT017718 hsa-miR-335-5p Microarray 18185580
MIRT025047 hsa-miR-181a-5p Microarray 17612493
MIRT722641 hsa-miR-483-3p HITS-CLIP 19536157
MIRT722640 hsa-miR-3127-3p HITS-CLIP 19536157
MIRT722639 hsa-miR-6756-3p HITS-CLIP 19536157
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
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GO ID Ontology Definition Evidence Reference
GO:0001848 Function Complement binding IEA
GO:0002376 Process Immune system process IEA
GO:0005515 Function Protein binding IPI 32296183
GO:0005576 Component Extracellular region IEA
GO:0005576 Component Extracellular region TAS
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
120950 1352 ENSG00000157131
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
P07357
Protein name Complement component C8 alpha chain (Complement component 8 subunit alpha)
Protein function Component of the membrane attack complex (MAC), a multiprotein complex activated by the complement cascade, which inserts into a target cell membrane and forms a pore, leading to target cell membrane rupture and cell lysis (PubMed:17872444, PubM
PDB 2QOS , 2QQH , 2RD7 , 3OJY , 6H03 , 6H04 , 7NYC , 7NYD , 8B0F , 8B0G , 8B0H
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00057 Ldl_recept_a 94 130 Low-density lipoprotein receptor domain class A Repeat
PF01823 MACPF 267 490 MAC/Perforin domain Domain
PF00090 TSP_1 540 584 Thrombospondin type 1 domain Domain
Sequence
MFAVVFFILSLMTCQPGVTAQEKVNQRVRRAATPAAVTCQLSNWSEWTDCFPCQDKKYRH
RSLLQPNKFGGTICSGDIWDQASCSSSTTCVRQAQCGQDFQCKETGRCLKRHLVCNGDQD
CLDGSDEDDC
EDVRAIDEDCSQYEPIPGSQKAALGYNILTQEDAQSVYDASYYGGQCETV
YNGEWRELRYDSTCERLYYGDDEKYFRKPYNFLKYHFEALADTGISSEFYDNANDLLSKV
KKDKSDSFGVTIGIGPAGSPLLVGVGVSHSQDTSFLNELNKYNEKKFIFTRIFTKVQTAH
FKMRKDDIMLDEGMLQSLMELPDQYNYGMYAKFINDYGTHYITSGSMGGIYEYILVIDKA
KMESLGITSRDITTCFGGSLGIQYEDKINVGGGLSGDHCKKFGGGKTERARKAMAVEDII
SRVRGGSSGWSGGLAQNRSTITYRSWGRSLKYNPVVIDFEMQPIHEVLRHTSLGPLEAKR
QNLRRALDQY
LMEFNACRCGPCFNNGVPILEGTSCRCQCRLGSLGAACEQTQTEGAKADG
SWSCWSSWSVCRAGIQERRRECDNPAPQNGGASCPGRKVQTQAC
Sequence length 584
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Complement and coagulation cascades
Regulation of actin cytoskeleton
Prion disease
Amoebiasis
Coronavirus disease - COVID-19
Systemic lupus erythematosus
  Terminal pathway of complement
Regulation of Complement cascade
Associated diseases Disease associations from ClinVar categorized as Causal (Pathogenic/Likely Pathogenic) or Unknown.
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Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Hepatocellular carcinoma Likely pathogenic rs775967055 RCV005888645
Type I complement component 8 deficiency Pathogenic; Likely pathogenic rs140856114, rs748306602, rs1381017299, rs1286367946, rs775967055 RCV002292381
RCV003992496
RCV005370014
RCV004565950
RCV000022508
Unknown Diseases with uncertain, conflicting, or no pathogenic evidence in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Acute myeloid leukemia Conflicting classifications of pathogenicity rs74075638 RCV005899664
C8A-related disorder Benign; Uncertain significance; Likely benign; Conflicting classifications of pathogenicity rs143523574, rs758800749, rs199940145, rs375634050, rs369702409, rs2522534908, rs770292474, rs745908825, rs2522609008, rs150404785, rs17114555, rs150755683, rs143908758, rs148949314 RCV003980598
RCV003913441
RCV003903580
RCV003971056
RCV003926306
RCV003402376
RCV004753728
RCV003981153
RCV003931618
RCV003925513
RCV003915973
RCV003906080
RCV003936139
RCV003933090
COMPLEMENT COMPONENT 8, ALPHA SUBUNIT, A/B POLYMORPHISM Benign rs652785 RCV000018567
Gastric cancer Benign rs706479 RCV005906422
Associations from Text MiningDisease associations identified through Pubtator
Disease Name Relationship Type References
Autism Spectrum Disorder Associate 37031449
Carcinoma Hepatocellular Associate 32443377
Cholangiocarcinoma Associate 39831920
Glomerulonephritis IGA Associate 37065697
Lupus Erythematosus Systemic Associate 36420131
Pain Associate 34608709
Prostatic Neoplasms Stimulate 29695737