UniProtKB - O75636 (FCN3_HUMAN)
Protein
Ficolin-3
Gene
FCN3
Organism
Homo sapiens (Human)
Status
Functioni
May function in innate immunity through activation of the lectin complement pathway. Calcium-dependent and GlcNAc-binding lectin. Has affinity with GalNAc, GlcNAc, D-fucose, as mono/oligosaccharide and lipopolysaccharides from S.typhimurium and S.minnesota.2 Publications
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 237 | CalciumCombined sources1 Publication | 1 | |
Metal bindingi | 239 | CalciumCombined sources1 Publication | 1 | |
Metal bindingi | 241 | Calcium; via carbonyl oxygenCombined sources1 Publication | 1 | |
Metal bindingi | 243 | Calcium; via carbonyl oxygenCombined sources1 Publication | 1 |
GO - Molecular functioni
- antigen binding Source: UniProtKB
- carbohydrate binding Source: ProtInc
- metal ion binding Source: UniProtKB-KW
GO - Biological processi
- complement activation Source: UniProtKB
- complement activation, lectin pathway Source: UniProtKB
- defense response to virus Source: UniProtKB
- negative regulation of RNA biosynthetic process Source: UniProtKB
- negative regulation of viral entry into host cell Source: UniProtKB
- recognition of apoptotic cell Source: UniProtKB
Keywordsi
Biological process | Complement activation lectin pathway, Immunity, Innate immunity |
Ligand | Calcium, Lectin, Metal-binding |
Enzyme and pathway databases
Reactomei | R-HSA-166662 Lectin pathway of complement activation R-HSA-166663 Initial triggering of complement R-HSA-2855086 Ficolins bind to repetitive carbohydrate structures on the target cell surface |
Protein family/group databases
UniLectini | O75636 |
Names & Taxonomyi
Protein namesi | Recommended name: Ficolin-3Alternative name(s): Collagen/fibrinogen domain-containing lectin 3 p35 Collagen/fibrinogen domain-containing protein 3 Hakata antigen |
Gene namesi | Name:FCN3 Synonyms:FCNH, HAKA1 |
Organismi | Homo sapiens (Human) |
Taxonomic identifieri | 9606 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Proteomesi |
|
Organism-specific databases
HGNCi | HGNC:3625 FCN3 |
MIMi | 604973 gene |
neXtProti | NX_O75636 |
Subcellular locationi
Extracellular region or secreted
Note: Found in blood plasma, bronchus, alveolus and bile duct.
Extracellular region or secreted
- blood microparticle Source: UniProtKB
- extracellular region Source: Reactome
Other locations
- collagen trimer Source: UniProtKB-KW
Keywords - Cellular componenti
SecretedPathology & Biotechi
Involvement in diseasei
Ficolin 3 deficiency (FCN3D)1 Publication
The disease is caused by mutations affecting the gene represented in this entry.
Disease descriptionA disorder characterized by immunodeficiency, recurrent infections, brain abscesses and recurrent warts on the fingers. Affected individuals have normal levels of lymphocytes, normal T-cell responses, and normal antibodies, but a selective deficient antibody response to pneumococcal polysaccharide vaccine.
Related information in OMIMOrganism-specific databases
DisGeNETi | 8547 |
MalaCardsi | FCN3 |
MIMi | 613860 phenotype |
OpenTargetsi | ENSG00000142748 |
Orphaneti | 331190 Immunodeficiency due to ficolin3 deficiency |
PharmGKBi | PA28071 |
Miscellaneous databases
Pharosi | O75636 |
Chemistry databases
DrugBanki | DB01593 Zinc DB14487 Zinc acetate DB14533 Zinc chloride |
Polymorphism and mutation databases
BioMutai | FCN3 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Signal peptidei | 1 – 23 | 1 PublicationAdd BLAST | 23 | |
ChainiPRO_0000009142 | 24 – 299 | Ficolin-3Add BLAST | 276 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 50 | Hydroxyproline1 Publication | 1 | |
Modified residuei | 53 | Hydroxyproline1 Publication | 1 | |
Modified residuei | 59 | Hydroxyproline1 Publication | 1 | |
Modified residuei | 65 | Hydroxyproline1 Publication | 1 | |
Modified residuei | 68 | Hydroxyproline1 Publication | 1 | |
Modified residuei | 77 | Hydroxyproline1 Publication | 1 | |
Disulfide bondi | 86 ↔ 110 | Combined sources1 Publication | ||
Disulfide bondi | 93 ↔ 121 | Combined sources1 Publication | ||
Glycosylationi | 189 | N-linked (GlcNAc...) (complex) asparagine3 Publications | 1 | |
Disulfide bondi | 245 ↔ 258 | Combined sources1 Publication |
Post-translational modificationi
The N-terminus is blocked.
Keywords - PTMi
Disulfide bond, Glycoprotein, HydroxylationProteomic databases
CPTACi | non-CPTAC-1124 |
jPOSTi | O75636 |
MassIVEi | O75636 |
PaxDbi | O75636 |
PeptideAtlasi | O75636 |
PRIDEi | O75636 |
ProteomicsDBi | 50132 [O75636-1] 50133 [O75636-2] |
PTM databases
GlyConnecti | 1247 |
iPTMneti | O75636 |
PhosphoSitePlusi | O75636 |
Expressioni
Tissue specificityi
Liver and lung. In liver it is produced by bile duct epithelial cells and hepatocytes. In lung it is produced by both ciliated bronchial epithelial cells and type II alveolar epithelial cells.1 Publication
Gene expression databases
Bgeei | ENSG00000142748 Expressed in 106 organ(s), highest expression level in right lung |
ExpressionAtlasi | O75636 baseline and differential |
Genevisiblei | O75636 HS |
Organism-specific databases
HPAi | CAB025945 |
Interactioni
Subunit structurei
Homotrimer (PubMed:17215869). May form an octadecamer consisting of an elementary trimer unit. Does not interact with fibronectin, elastin or zymosan.
Interacts with MASP1 and MASP2.
2 PublicationsProtein-protein interaction databases
BioGridi | 114117, 1 interactor |
IntActi | O75636, 1 interactor |
STRINGi | 9606.ENSP00000270879 |
Structurei
Secondary structure
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details3D structure databases
SMRi | O75636 |
ModBasei | Search... |
PDBe-KBi | Search... |
Miscellaneous databases
EvolutionaryTracei | O75636 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 48 – 80 | Collagen-likeAdd BLAST | 33 | |
Domaini | 84 – 299 | Fibrinogen C-terminalPROSITE-ProRule annotationAdd BLAST | 216 |
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 258 – 259 | Carbohydrate binding1 Publication | 2 |
Sequence similaritiesi
Belongs to the ficolin lectin family.Curated
Keywords - Domaini
Collagen, Repeat, SignalPhylogenomic databases
eggNOGi | KOG2579 Eukaryota ENOG410ZYS4 LUCA |
GeneTreei | ENSGT00940000163188 |
HOGENOMi | HOG000037127 |
InParanoidi | O75636 |
KOi | K10104 |
OMAi | GNCAVIV |
OrthoDBi | 1035379at2759 |
PhylomeDBi | O75636 |
TreeFami | TF351983 |
Family and domain databases
CDDi | cd00087 FReD, 1 hit |
Gene3Di | 3.90.215.10, 1 hit 4.10.530.10, 1 hit |
InterProi | View protein in InterPro IPR036056 Fibrinogen-like_C IPR014716 Fibrinogen_a/b/g_C_1 IPR014715 Fibrinogen_a/b/g_C_2 IPR002181 Fibrinogen_a/b/g_C_dom IPR020837 Fibrinogen_CS |
Pfami | View protein in Pfam PF00147 Fibrinogen_C, 1 hit |
SMARTi | View protein in SMART SM00186 FBG, 1 hit |
SUPFAMi | SSF56496 SSF56496, 1 hit |
PROSITEi | View protein in PROSITE PS00514 FIBRINOGEN_C_1, 1 hit PS51406 FIBRINOGEN_C_2, 1 hit |
s (2)i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
This entry describes 2 produced by isoformsialternative splicing. AlignAdd to basketIsoform 1 (identifier: O75636-1) [UniParc]FASTAAdd to basket
This isoform has been chosen as the sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. canonicali
10 20 30 40 50
MDLLWILPSL WLLLLGGPAC LKTQEHPSCP GPRELEASKV VLLPSCPGAP
60 70 80 90 100
GSPGEKGAPG PQGPPGPPGK MGPKGEPGDP VNLLRCQEGP RNCRELLSQG
110 120 130 140 150
ATLSGWYHLC LPEGRALPVF CDMDTEGGGW LVFQRRQDGS VDFFRSWSSY
160 170 180 190 200
RAGFGNQESE FWLGNENLHQ LTLQGNWELR VELEDFNGNR TFAHYATFRL
210 220 230 240 250
LGEVDHYQLA LGKFSEGTAG DSLSLHSGRP FTTYDADHDS SNSNCAVIVH
260 270 280 290
GAWWYASCYR SNLNGRYAVS EAAAHKYGID WASGRGVGHP YRRVRMMLR
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 271 | E → D in BAA32277 (PubMed:9694814).Curated | 1 | |
Sequence conflicti | 271 | E → D in AAH20731 (PubMed:15489334).Curated | 1 |
Alternative sequence
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Alternative sequenceiVSP_001541 | 79 – 89 | Missing in isoform 2. 2 PublicationsAdd BLAST | 11 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | D88587 mRNA Translation: BAA32277.1 AK075140 mRNA Translation: BAC11429.1 CR456808 mRNA Translation: CAG33089.1 AY756173 Genomic DNA Translation: AAU85296.1 FO393419 Genomic DNA No translation available. BC020731 mRNA Translation: AAH20731.1 |
CCDSi | CCDS300.1 [O75636-1] CCDS301.1 [O75636-2] |
RefSeqi | NP_003656.2, NM_003665.3 [O75636-1] NP_775628.1, NM_173452.2 [O75636-2] |
Genome annotation databases
Ensembli | ENST00000270879; ENSP00000270879; ENSG00000142748 [O75636-1] ENST00000354982; ENSP00000347077; ENSG00000142748 [O75636-2] |
GeneIDi | 8547 |
KEGGi | hsa:8547 |
UCSCi | uc001boa.4 human [O75636-1] |
Keywords - Coding sequence diversityi
Alternative splicingSimilar proteinsi
Cross-referencesi
Web resourcesi
SeattleSNPs |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | D88587 mRNA Translation: BAA32277.1 AK075140 mRNA Translation: BAC11429.1 CR456808 mRNA Translation: CAG33089.1 AY756173 Genomic DNA Translation: AAU85296.1 FO393419 Genomic DNA No translation available. BC020731 mRNA Translation: AAH20731.1 |
CCDSi | CCDS300.1 [O75636-1] CCDS301.1 [O75636-2] |
RefSeqi | NP_003656.2, NM_003665.3 [O75636-1] NP_775628.1, NM_173452.2 [O75636-2] |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
1LA5 | model | - | A | 1-299 | [»] | |
2J5Z | X-ray | 1.73 | A/B/C | 79-299 | [»] | |
2J60 | X-ray | 1.80 | A/B/C | 79-299 | [»] | |
2J64 | X-ray | 2.20 | A/B/C | 79-299 | [»] | |
SMRi | O75636 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Protein-protein interaction databases
BioGridi | 114117, 1 interactor |
IntActi | O75636, 1 interactor |
STRINGi | 9606.ENSP00000270879 |
Chemistry databases
DrugBanki | DB01593 Zinc DB14487 Zinc acetate DB14533 Zinc chloride |
Protein family/group databases
UniLectini | O75636 |
PTM databases
GlyConnecti | 1247 |
iPTMneti | O75636 |
PhosphoSitePlusi | O75636 |
Polymorphism and mutation databases
BioMutai | FCN3 |
Proteomic databases
CPTACi | non-CPTAC-1124 |
jPOSTi | O75636 |
MassIVEi | O75636 |
PaxDbi | O75636 |
PeptideAtlasi | O75636 |
PRIDEi | O75636 |
ProteomicsDBi | 50132 [O75636-1] 50133 [O75636-2] |
Protocols and materials databases
DNASUi | 8547 |
Genome annotation databases
Ensembli | ENST00000270879; ENSP00000270879; ENSG00000142748 [O75636-1] ENST00000354982; ENSP00000347077; ENSG00000142748 [O75636-2] |
GeneIDi | 8547 |
KEGGi | hsa:8547 |
UCSCi | uc001boa.4 human [O75636-1] |
Organism-specific databases
CTDi | 8547 |
DisGeNETi | 8547 |
GeneCardsi | FCN3 |
HGNCi | HGNC:3625 FCN3 |
HPAi | CAB025945 |
MalaCardsi | FCN3 |
MIMi | 604973 gene 613860 phenotype |
neXtProti | NX_O75636 |
OpenTargetsi | ENSG00000142748 |
Orphaneti | 331190 Immunodeficiency due to ficolin3 deficiency |
PharmGKBi | PA28071 |
GenAtlasi | Search... |
Phylogenomic databases
eggNOGi | KOG2579 Eukaryota ENOG410ZYS4 LUCA |
GeneTreei | ENSGT00940000163188 |
HOGENOMi | HOG000037127 |
InParanoidi | O75636 |
KOi | K10104 |
OMAi | GNCAVIV |
OrthoDBi | 1035379at2759 |
PhylomeDBi | O75636 |
TreeFami | TF351983 |
Enzyme and pathway databases
Reactomei | R-HSA-166662 Lectin pathway of complement activation R-HSA-166663 Initial triggering of complement R-HSA-2855086 Ficolins bind to repetitive carbohydrate structures on the target cell surface |
Miscellaneous databases
ChiTaRSi | FCN3 human |
EvolutionaryTracei | O75636 |
GeneWikii | FCN3 |
GenomeRNAii | 8547 |
Pharosi | O75636 |
PROi | PR:O75636 |
SOURCEi | Search... |
Gene expression databases
Bgeei | ENSG00000142748 Expressed in 106 organ(s), highest expression level in right lung |
ExpressionAtlasi | O75636 baseline and differential |
Genevisiblei | O75636 HS |
Family and domain databases
CDDi | cd00087 FReD, 1 hit |
Gene3Di | 3.90.215.10, 1 hit 4.10.530.10, 1 hit |
InterProi | View protein in InterPro IPR036056 Fibrinogen-like_C IPR014716 Fibrinogen_a/b/g_C_1 IPR014715 Fibrinogen_a/b/g_C_2 IPR002181 Fibrinogen_a/b/g_C_dom IPR020837 Fibrinogen_CS |
Pfami | View protein in Pfam PF00147 Fibrinogen_C, 1 hit |
SMARTi | View protein in SMART SM00186 FBG, 1 hit |
SUPFAMi | SSF56496 SSF56496, 1 hit |
PROSITEi | View protein in PROSITE PS00514 FIBRINOGEN_C_1, 1 hit PS51406 FIBRINOGEN_C_2, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | FCN3_HUMAN | |
Accessioni | O75636Primary (citable) accession number: O75636 Secondary accession number(s): Q6IBJ5, Q8WW86 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | February 21, 2001 |
Last sequence update: | March 7, 2006 | |
Last modified: | October 16, 2019 | |
This is version 194 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program | |
Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. |
Miscellaneousi
Keywords - Technical termi
3D-structure, Complete proteome, Direct protein sequencing, Reference proteomeDocuments
- Human chromosome 1
Human chromosome 1: entries, gene names and cross-references to MIM - SIMILARITY comments
Index of protein domains and families - MIM cross-references
Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot - PDB cross-references
Index of Protein Data Bank (PDB) cross-references