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Aliases for MBL2 Gene

Aliases for MBL2 Gene

  • Mannose-Binding Lectin (Protein C) 2, Soluble 2 3
  • MBP1 3 4 6
  • MBL 3 4 6
  • Mannose-Binding Lectin (Protein C) 2, Soluble (Opsonic Defect) 2 3
  • Collectin-1 3 4
  • COLEC1 3 4
  • MBL2D 3 6
  • MBP-C 3 4
  • MBPD 3 6
  • Mannose-Binding Lectin 2, Soluble (Opsonic Defect) 3
  • Mannose-Binding Protein C 3
  • Mannan-Binding Protein 4
  • Mannose-Binding Lectin 4
  • Mannan-Binding Lectin 3
  • HSMBPC 3
  • MBP 3

External Ids for MBL2 Gene

Previous HGNC Symbols for MBL2 Gene

  • MBL

Previous GeneCards Identifiers for MBL2 Gene

  • GC10M053372
  • GC10M054417
  • GC10M053869
  • GC10M054195
  • GC10M054525
  • GC10M048503

Summaries for MBL2 Gene

Entrez Gene Summary for MBL2 Gene

  • This gene encodes the soluble mannose-binding lectin or mannose-binding protein found in serum. The protein encoded belongs to the collectin family and is an important element in the innate immune system. The protein recognizes mannose and N-acetylglucosamine on many microorganisms, and is capable of activating the classical complement pathway. Deficiencies of this gene have been associated with susceptibility to autoimmune and infectious diseases. [provided by RefSeq, Jul 2008]

GeneCards Summary for MBL2 Gene

MBL2 (Mannose-Binding Lectin (Protein C) 2, Soluble) is a Protein Coding gene. Diseases associated with MBL2 include chronic infections, due to mbl deficiency and rheumatic fever. Among its related pathways are Neural Crest Differentiation and Complement and coagulation cascades. GO annotations related to this gene include receptor binding and mannose binding. An important paralog of this gene is COLEC11.

UniProtKB/Swiss-Prot for MBL2 Gene

  • Calcium-dependent lectin involved in innate immune defense. Binds mannose, fucose and N-acetylglucosamine on different microorganisms and activates the lectin complement pathway. Binds to late apoptotic cells, as well as to apoptotic blebs and to necrotic cells, but not to early apoptotic cells, facilitating their uptake by macrophages. May bind DNA.

Gene Wiki entry for MBL2 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for MBL2 Gene

Genomics for MBL2 Gene

Regulatory Elements for MBL2 Gene

Genomic Location for MBL2 Gene

52,760,860 bp from pter
52,772,818 bp from pter
11,959 bases
Minus strand

Genomic View for MBL2 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for MBL2 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for MBL2 Gene

Proteins for MBL2 Gene

  • Protein details for MBL2 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Mannose-binding protein C
    Protein Accession:
    Secondary Accessions:
    • Q4VB12
    • Q4VB13
    • Q4VB14
    • Q5SQS3
    • Q86SI4
    • Q96KE4
    • Q96TF7
    • Q96TF8
    • Q96TF9

    Protein attributes for MBL2 Gene

    248 amino acids
    Molecular mass:
    26144 Da
    Quaternary structure:
    • Oligomeric complex of 3 or more homotrimers. Interacts with MASP1 and MASP2. Interacts with MEP1A and MEP1B and may inhibit their catalytic activity.

    Three dimensional structures from OCA and Proteopedia for MBL2 Gene

neXtProt entry for MBL2 Gene

Proteomics data for MBL2 Gene at MOPED

Post-translational modifications for MBL2 Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for MBL2 Gene

ENSEMBL proteins:
Reactome Protein details:
REFSEQ proteins:

No data available for DME Specific Peptides for MBL2 Gene

Domains for MBL2 Gene

Gene Families for MBL2 Gene


Suggested Antigen Peptide Sequences for MBL2 Gene

Graphical View of Domain Structure for InterPro Entry



  • P11226
  • The coiled-coil domain mediates trimerization
  • Contains 1 C-type lectin domain.
  • Contains 1 collagen-like domain.
genes like me logo Genes that share domains with MBL2: view

Function for MBL2 Gene

Molecular function for MBL2 Gene

GENATLAS Biochemistry: mannose-binding lectin,member of the collectin family,32kDa,homolog of C1q,and mouse MBP-C,complexing as an hexameric form with MASP1,MASP2,Map19,a spliced isoform of MASP2. Antibody independent activator of the classical pathway of complement,mutated in chronic,progressive hepatitis B infection
UniProtKB/Swiss-Prot Function: Calcium-dependent lectin involved in innate immune defense. Binds mannose, fucose and N-acetylglucosamine on different microorganisms and activates the lectin complement pathway. Binds to late apoptotic cells, as well as to apoptotic blebs and to necrotic cells, but not to early apoptotic cells, facilitating their uptake by macrophages. May bind DNA.

Gene Ontology (GO) - Molecular Function for MBL2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005102 receptor binding IPI 11549596
GO:0005509 calcium ion binding IBA --
GO:0005515 protein binding IPI 11485744
GO:0005537 mannose binding TAS 2477488
GO:0048306 calcium-dependent protein binding IPI 12421953
genes like me logo Genes that share ontologies with MBL2: view
genes like me logo Genes that share phenotypes with MBL2: view

Animal Models for MBL2 Gene

MGI Knock Outs for MBL2:

No data available for Enzyme Numbers (IUBMB) , miRNA , Transcription Factor Targeting and HOMER Transcription for MBL2 Gene

Localization for MBL2 Gene

Subcellular locations from UniProtKB/Swiss-Prot for MBL2 Gene


Subcellular locations from

Jensen Localization Image for MBL2 Gene COMPARTMENTS Subcellular localization image for MBL2 gene
Compartment Confidence
extracellular 5
cytosol 3
nucleus 3
plasma membrane 1

Gene Ontology (GO) - Cellular Components for MBL2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005576 extracellular region TAS --
GO:0005581 collagen trimer IEA --
GO:0005615 extracellular space IDA 23544079
GO:0009986 cell surface TAS 2477488
genes like me logo Genes that share ontologies with MBL2: view

Pathways for MBL2 Gene

genes like me logo Genes that share pathways with MBL2: view

Gene Ontology (GO) - Biological Process for MBL2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0001867 complement activation, lectin pathway TAS --
GO:0006953 acute-phase response TAS 2477488
GO:0006956 complement activation TAS --
GO:0006958 complement activation, classical pathway IEA --
GO:0006979 response to oxidative stress NAS 11549596
genes like me logo Genes that share ontologies with MBL2: view

Compounds for MBL2 Gene

(1) HMDB Compounds for MBL2 Gene

Compound Synonyms Cas Number PubMed IDs
  • Ca

(9) Drugbank Compounds for MBL2 Gene

(71) Novoseek inferred chemical compound relationships for MBL2 Gene

Compound -log(P) Hits PubMed IDs
mannan 90.2 177
mannose 89.8 210
n-acetylglucosamine 69.2 24
serine 69.1 122
maltose 65.5 48
genes like me logo Genes that share compounds with MBL2: view

Transcripts for MBL2 Gene

mRNA/cDNA for MBL2 Gene

(8) Additional mRNA sequences :
(14) Selected AceView cDNA sequences:
(3) REFSEQ mRNAs :
(1) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Unigene Clusters for MBL2 Gene

Mannose-binding lectin (protein C) 2, soluble:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for MBL2 Gene

No ASD Table

Relevant External Links for MBL2 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for MBL2 Gene

mRNA expression in normal human tissues for MBL2 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for MBL2 Gene

This gene is overexpressed in Liver (52.7).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, and MOPED for MBL2 Gene

SOURCE GeneReport for Unigene cluster for MBL2 Gene Hs.499674

mRNA Expression by UniProt/SwissProt for MBL2 Gene

Tissue specificity: Plasma protein produced mainly in the liver.
genes like me logo Genes that share expressions with MBL2: view

Orthologs for MBL2 Gene

This gene was present in the common ancestor of chordates.

Orthologs for MBL2 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia MBL2 35
  • 99.33 (n)
  • 99.19 (a)
MBL2 36
  • 99 (a)
(Bos Taurus)
Mammalia MBL 36
  • 65 (a)
MBL2 35
  • 76.65 (n)
  • 65.18 (a)
(Mus musculus)
Mammalia Mbl2 35
  • 72.01 (n)
  • 61.04 (a)
Mbl2 16
Mbl2 36
  • 61 (a)
(Monodelphis domestica)
Mammalia MBL2 36
  • 57 (a)
(Ornithorhynchus anatinus)
Mammalia MBL2 36
  • 51 (a)
(Rattus norvegicus)
Mammalia Mbl2 35
  • 71.57 (n)
  • 61.9 (a)
(Gallus gallus)
Aves MBL2 35
  • 53.97 (n)
  • 47.62 (a)
MBL2 36
  • 44 (a)
(Anolis carolinensis)
Reptilia MBL2 36
  • 43 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia LOC100496214 35
  • 51.89 (n)
  • 45.7 (a)
(Danio rerio)
Actinopterygii CR847898.1 36
  • 26 (a)
hbl1 36
  • 33 (a)
hbl2 36
  • 34 (a)
hbl3 36
  • 33 (a)
hbl4 35
  • 51.28 (n)
  • 43.75 (a)
hbl4 36
  • 37 (a)
Species with no ortholog for MBL2:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • dog (Canis familiaris)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for MBL2 Gene

Gene Tree for MBL2 (if available)
Gene Tree for MBL2 (if available)

Paralogs for MBL2 Gene

Paralogs for MBL2 Gene

Selected SIMAP similar genes for MBL2 Gene using alignment to 3 proteins: Pseudogenes for MBL2 Gene

genes like me logo Genes that share paralogs with MBL2: view

Variants for MBL2 Gene

Polymorphic Variants from UniProtKB/Swiss-Prot for MBL2 Gene

Genetic variations in MBL2 are responsible for mannose-binding protein deficiency [MIM:614372]. This condition is defined as MBL2 protein level of less than 100 ng/ml, is present in about 5% of people of European descent and in about 10% of sub-Saharan Africans. Most MBL2-deficient adults appear healthy, but low levels of MBL2 are associated with increased risk of infection in toddlers, in cancer patients undergoing chemotherapy, and in organ-transplant patients receiving immunosuppressive drugs, particularly recipients of liver transplants. There is an association between low levels of MBL2 and a defect of opsonization which results in susceptibility to frequent and chronic infections (PubMed:1675710). Functional MBL2 deficiency may be associated with protection against tuberculosis caused by Mycobacterium africanum but not by Mycobacterium tuberculosis, as observed in studies on Ghanaian patients with pulmonary tuberculosis (PubMed:21695215).

Sequence variations from dbSNP and Humsavar for MBL2 Gene

SNP ID Clin Chr 10 pos Sequence Context AA Info Type MAF
rs2506 -- 52,765,749(+) ACCTG(A/C)TCTGG utr-variant-3-prime, intron-variant
rs920724 -- 52,773,037(+) CCACA(A/G)CTAGG upstream-variant-2KB
rs920725 -- 52,773,275(+) CGCCA(A/G)CTAGC upstream-variant-2KB
rs930507 -- 52,768,506(+) AAGGT(C/G)AGCCC reference, synonymous-codon
rs930508 -- 52,768,538(+) AAACT(C/G)ACTCA intron-variant

Structural Variations from Database of Genomic Variants (DGV) for MBL2 Gene

Variant ID Type Subtype PubMed ID
nsv895401 CNV Gain 21882294
nsv831876 CNV Gain 17160897
nsv895403 CNV Loss 21882294
nsv518123 CNV Loss 19592680
nsv515970 CNV Gain+Loss 19592680
nsv437673 CNV Loss 16327808
esv2666698 CNV Deletion 23128226
esv24436 CNV Loss 19812545

Relevant External Links for MBL2 Gene

HapMap Linkage Disequilibrium report
Human Gene Mutation Database (HGMD)

Disorders for MBL2 Gene

(1) OMIM Diseases for MBL2 Gene (154545)

(97) Novoseek inferred disease relationships for MBL2 Gene

Disease -log(P) Hits PubMed IDs
complement deficiency 67 5
lupus erythematosus systemic 60.6 67
meningococcal diseases 59.9 28
response acute phase 53.2 13
autoimmune diseases 51.8 45

Genatlas disease for MBL2 Gene

infections,recurrent,with chronic diarrhea and opsonisation defect (low MBL2),including susceptibility to meningococcal disease

Relevant External Links for MBL2

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with MBL2: view

No data available for UniProtKB/Swiss-Prot for MBL2 Gene

Publications for MBL2 Gene

  1. A second serine protease associated with mannan-binding lectin that activates complement. (PMID: 9087411) Thiel S. … Jensenius J.C. (Nature 1997) 3 4 23
  2. Human mannose-binding protein carbohydrate recognition domain trimerizes through a triple alpha-helical coiled-coil. (PMID: 7634089) Sheriff S. … Ezekowitz R.A. (Nat. Struct. Biol. 1994) 3 4 23
  3. Distinct and overlapping functions of allelic forms of human mannose binding protein. (PMID: 1303250) Super M. … Ezekowitz R.A. (Nat. Genet. 1992) 3 4 23
  4. Polymorphisms in candidate genes and risk of scarring trachoma in a Chlamydia trachomatis--endemic population. (PMID: 11023480) Mozzato-Chamay N. … Conway D.J. (J. Infect. Dis. 2000) 3 23 48
  5. Mannose binding lectin (MBL) gene mutation is not a risk factor for systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) in Japanese. (PMID: 11196679) Horiuchi T. … Kondo M. (Genes Immun. 2000) 3 23 48

Products for MBL2 Gene

Sources for MBL2 Gene

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