Q98UI9 (MUC5B_CHICK) Reviewed, UniProtKB/Swiss-Prot
Last modified
April 3, 2013.
Version 65.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Mucin-5B Alternative name(s): Ovomucin, alpha-subunit | ||
| Gene names |
| ||
| Organism | Gallus gallus (Chicken) [Reference proteome] | ||
| Taxonomic identifier | 9031 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Archosauria › Dinosauria › Saurischia › Theropoda › Coelurosauria › Aves › Neognathae › Galliformes › Phasianidae › Phasianinae › Gallus![]() |
Protein attributes
| Sequence length | 2108 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Ovomucin, the glycoprotein responsible for the gel properties of egg white, is composed for 2 subunits, alpha-ovomucin/MUC5B and beta-ovomucin/MUC6. Ref.2 |
| Subunit structure | Multimer; disulfide-linked. Ref.2 |
| Subcellular location | |
| Post-translational modification | N-glycosylated. Complex glycosylation with bisecting N-acetylglucosamine. Contains mainly N-acetylglucosamine (3.1-8.5%), mannose (2.9-4.6%), a small amount of galactose (1.1-4.35) and sialic acid (0.3-1.3%). Most abundant glycan is composed of a GlcNAc2Man3 core, a bisecting GlcNAc and another 3 GlcNAc antannae located on the mannoses of the core. Site Asn-1639 exists both in glycosylated and non-glycosylated forms. Ref.2 Ref.3 |
| Sequence similarities | Contains 1 CTCK (C-terminal cystine knot-like) domain. Contains 3 TIL (trypsin inhibitory-like) domains. Contains 3 VWFC domains. Contains 4 VWFD domains. |
Ontologies
| Keywords | |
|---|---|
| Cellular component | Secreted |
| Domain | Repeat Signal |
| PTM | Disulfide bond Glycoprotein |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Cellular_component | extracellular region Inferred from electronic annotation. Source: UniProtKB-SubCell |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||||
Molecule processing | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 21 | 21 | Potential | ||||||||
| Chain | 22 – 2108 | 2087 | Mucin-5B | PRO_5000049585 | |||||||
Regions | |||||||||||
| Domain | 37 – 242 | 206 | VWFD 1 | ||||||||
| Domain | 304 – 360 | 57 | TIL 1 | ||||||||
| Domain | 399 – 610 | 212 | VWFD 2 | ||||||||
| Domain | 666 – 723 | 58 | TIL 2 | ||||||||
| Domain | 782 – 825 | 44 | TIL 3 | ||||||||
| Domain | 825 – 897 | 73 | VWFC 1 | ||||||||
| Domain | 864 – 1069 | 206 | VWFD 3 | ||||||||
| Domain | 1430 – 1646 | 217 | VWFD 4 | ||||||||
| Domain | 1761 – 1832 | 72 | VWFC 2 | ||||||||
| Domain | 1870 – 1937 | 68 | VWFC 3 | ||||||||
| Domain | 2010 – 2104 | 95 | CTCK | ||||||||
Sites | |||||||||||
| Site | 69 | 1 | Not glycosylated | ||||||||
| Site | 673 | 1 | Not glycosylated | ||||||||
Amino acid modifications | |||||||||||
| Glycosylation | 381 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 528 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 599 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 680 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 772 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 855 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 1036 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 1219 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 1371 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 1452 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 1567 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 1639 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 1792 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 1807 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 1841 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Glycosylation | 1964 | 1 | N-linked (GlcNAc...) (complex) Ref.3 | ||||||||
| Disulfide bond | 60 ↔ 68 | By similarity | |||||||||
| Disulfide bond | 2010 ↔ 2066 | By similarity | |||||||||
| Disulfide bond | 2031 ↔ 2080 | By similarity | |||||||||
| Disulfide bond | 2042 ↔ 2096 | By similarity | |||||||||
| Disulfide bond | 2046 ↔ 2098 | By similarity | |||||||||
Sequences
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References
| [1] | "Amino acid sequence of alpha-subunit in hen egg white ovomucin deduced from cloned cDNA." Watanabe K., Shimoyamada M., Onizuka T., Akiyama H., Niwa M., Ido T., Tsuge Y. DNA Seq. 15:251-261(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Tissue: Oviduct. |
| [2] | "Studies on the composition of egg-white ovomucin." Robinson D.S., Monsey J.B. Biochem. J. 121:537-547(1971) [PubMed] [Europe PMC] [Abstract] Cited for: STRUCTURE OF CARBOHYDRATES, FUNCTION, SUBUNIT. |
| [3] | "N-glycosylation of ovomucin from hen egg white." Offengenden M., Fentabil M.A., Wu J. Glycoconj. J. 28:113-123(2011) [PubMed] [Europe PMC] [Abstract] Cited for: GLYCOSYLATION AT ASN-381; ASN-528; ASN-599; ASN-680; ASN-772; ASN-855; ASN-1036; ASN-1219; ASN-1371; ASN-1452; ASN-1567; ASN-1639; ASN-1792; ASN-1807; ASN-1841 AND ASN-1964, LACK OF GLYCOSYLATION AT ASN-69 AND ASN-673, MASS SPECTROMETRY, STRUCTURE OF CARBOHYDRATES. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AB046524 mRNA. Translation: BAB21488.1. |
| IPI | IPI00584997. |
| UniGene | Gga.3337. |
3D structure databases | |
| HSSP | HSSP built from PDB template 1CCV based on UniProtKB P56682. |
| ProteinModelPortal | Q98UI9. |
| ModBase | Search... |
Protein family/group databases | |
| Allergome | 2741. Gal d Ovomucin. |
Proteomic databases | |
| PaxDb | Q98UI9. |
| PRIDE | Q98UI9. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Phylogenomic databases | |
| eggNOG | NOG12793. |
| HOGENOM | HOG000168234. |
| HOVERGEN | HBG004380. |
| InParanoid | Q98UI9. |
| OrthoDB | EOG4MW861. |
Family and domain databases | |
| InterPro | IPR006207. Cys_knot_C. IPR002919. TIL_dom. IPR014853. Unchr_dom_Cys-rich. IPR001007. VWF_C. IPR001846. VWF_type-D. [Graphical view] |
| Pfam | PF08742. C8. 4 hits. PF01826. TIL. 3 hits. PF00094. VWD. 4 hits. [Graphical view] |
| SMART | SM00832. C8. 4 hits. SM00041. CT. 1 hit. SM00214. VWC. 5 hits. SM00216. VWD. 4 hits. [Graphical view] |
| SUPFAM | SSF57567. Cysrich_TIL. 5 hits. |
| PROSITE | PS01225. CTCK_2. 1 hit. PS01208. VWFC_1. 2 hits. PS50184. VWFC_2. 2 hits. PS51233. VWFD. 4 hits. [Graphical view] |
| ProtoNet | Search... |
Other | |
| NextBio | 20815465. |
Entry information
| Entry name | MUC5B_CHICK | ||||||||
| Accession | Primary (citable) accession number: Q98UI9 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| SIMILARITY comments Index of protein domains and families |

Clusters with
