Q8TCZ2 (C99L2_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 85.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: CD99 antigen-like protein 2 Alternative name(s): MIC2-like protein 1 CD_antigen=CD99 | ||||||
| Gene names |
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| Organism | Homo sapiens (Human) [Reference proteome] | ||||||
| Taxonomic identifier | 9606 [NCBI] | ||||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 262 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 | Plays a role in a late step of leukocyte extravasation helping cells to overcome the endothelial basement membrane. Acts at the same site as, but independently of, PECAM1 By similarity. Homophilic adhesion molecule, but these interactions may not be required for cell aggregation By similarity. |
| Subcellular location | Cell membrane; Single-pass type I membrane protein; Extracellular side By similarity. Cell junction By similarity. |
| Tissue specificity | Expressed in many tissues, with low expression in thymus. Ref.1 |
| Post-translational modification | O-glycosylated By similarity. |
| Sequence similarities | Belongs to the CD99 family. |
| Sequence caution | The sequence CAB66515.1 differs from that shown. Reason: Frameshift at position 156. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Cell adhesion |
| Cellular component | Cell junction Cell membrane Membrane |
| Coding sequence diversity | Alternative splicing |
| Domain | Signal Transmembrane Transmembrane helix |
| PTM | Glycoprotein |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | cell adhesion Inferred from electronic annotation. Source: UniProtKB-KW |
| Cellular_component | cell junction Inferred from electronic annotation. Source: UniProtKB-SubCell integral to membraneInferred from electronic annotation. Source: UniProtKB-KW plasma membraneInferred from electronic annotation. Source: UniProtKB-SubCell |
| Complete GO annotation... | |
Alternative products
| This entry describes 6 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q8TCZ2-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q8TCZ2-2) The sequence of this isoform differs from the canonical sequence as follows: 45-93: Missing. | ||||||
| Isoform 3 (identifier: Q8TCZ2-3) The sequence of this isoform differs from the canonical sequence as follows: 44-44: Q → R 45-116: Missing. | ||||||
| Isoform 4 (identifier: Q8TCZ2-4) The sequence of this isoform differs from the canonical sequence as follows: 44-145: QPWDHTTTTT...RKPIAGGGGF → PALGMYHKLD...GFKAHLDNPG 146-262: Missing. | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 5 (identifier: Q8TCZ2-5) The sequence of this isoform differs from the canonical sequence as follows: 68-68: G → GPTEG 218-219: QQ → QHAAAGQE | ||||||
| Note: No experimental confirmation available. | ||||||
| Isoform 6 (identifier: Q8TCZ2-6) The sequence of this isoform differs from the canonical sequence as follows: 93-165: Missing. | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Signal peptide | 1 – 25 | 25 | Potential | ||||||
| Chain | 26 – 262 | 237 | CD99 antigen-like protein 2 | PRO_0000340092 | |||||
Regions | |||||||||
| Topological domain | 26 – 185 | 160 | Extracellular Potential | ||||||
| Transmembrane | 186 – 206 | 21 | Helical; Potential | ||||||
| Topological domain | 207 – 262 | 56 | Cytoplasmic Potential | ||||||
| Compositional bias | 49 – 54 | 6 | Poly-Thr | ||||||
| Compositional bias | 99 – 102 | 4 | Poly-Thr | ||||||
| Compositional bias | 141 – 144 | 4 | Poly-Gly | ||||||
| Compositional bias | 253 – 259 | 7 | Poly-Pro | ||||||
Natural variations | |||||||||
| Alternative sequence | 44 – 145 | 102 | QPWDH…GGGGF → PALGMYHKLDGLKQQNFILS LFWMLEVLYQGVGWATFSLK ALGKNLSLTFPTSGGSRCSL VCGCITPISASVVTWCSPFC VSLLSLTKMLVSGFKAHLDN PG in isoform 4. | VSP_034181 | |||||
| Alternative sequence | 44 | 1 | Q → R in isoform 3. | VSP_034182 | |||||
| Alternative sequence | 45 – 116 | 72 | Missing in isoform 3. | VSP_034183 | |||||
| Alternative sequence | 45 – 93 | 49 | Missing in isoform 2. | VSP_034184 | |||||
| Alternative sequence | 68 | 1 | G → GPTEG in isoform 5. | VSP_041815 | |||||
| Alternative sequence | 93 – 165 | 73 | Missing in isoform 6. | VSP_044663 | |||||
| Alternative sequence | 146 – 262 | 117 | Missing in isoform 4. | VSP_034185 | |||||
| Alternative sequence | 218 – 219 | 2 | QQ → QHAAAGQE in isoform 5. | VSP_041816 | |||||
Experimental info | |||||||||
| Sequence conflict | 109 | 1 | R → I in BAF82889. Ref.4 | ||||||
| Sequence conflict | 128 | 1 | R → Q in BAG54124. Ref.4 | ||||||
| Sequence conflict | 170 | 1 | Y → H in BAF82889. Ref.4 | ||||||
| Sequence conflict | 176 | 1 | P → R in BAF84064. Ref.4 | ||||||
| Sequence conflict | 229 | 1 | E → G in BAG56778. Ref.4 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Cloning, genomic organization, alternative transcripts and expression analysis of CD99L2, a novel paralog of human CD99, and identification of evolutionary conserved motifs." Suh Y.H., Shin Y.K., Kook M.-C., Oh K.I., Park W.S., Kim S.H., Lee I.-S., Park H.J., Huh T.-L., Park S.H. Gene 307:63-76(2003) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1; 2 AND 3), ALTERNATIVE SPLICING, TISSUE SPECIFICITY. Tissue: Skeletal muscle and Thymocyte. |
| [2] | "Towards a catalog of human genes and proteins: sequencing and analysis of 500 novel complete protein coding human cDNAs." Wiemann S., Weil B., Wellenreuther R., Gassenhuber J., Glassl S., Ansorge W., Boecher M., Bloecker H., Bauersachs S., Blum H., Lauber J., Duesterhoeft A., Beyer A., Koehrer K., Strack N., Mewes H.-W., Ottenwaelder B., Obermaier B. Poustka A.Genome Res. 11:422-435(2001) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1). Tissue: Amygdala. |
| [3] | "The secreted protein discovery initiative (SPDI), a large-scale effort to identify novel human secreted and transmembrane proteins: a bioinformatics assessment." Clark H.F., Gurney A.L., Abaya E., Baker K., Baldwin D.T., Brush J., Chen J., Chow B., Chui C., Crowley C., Currell B., Deuel B., Dowd P., Eaton D., Foster J.S., Grimaldi C., Gu Q., Hass P.E. Gray A.M.Genome Res. 13:2265-2270(2003) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1). |
| [4] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1; 2; 5 AND 6). Tissue: Brain and Thalamus. |
| [5] | "The DNA sequence of the human X chromosome." Ross M.T., Grafham D.V., Coffey A.J., Scherer S., McLay K., Muzny D., Platzer M., Howell G.R., Burrows C., Bird C.P., Frankish A., Lovell F.L., Howe K.L., Ashurst J.L., Fulton R.S., Sudbrak R., Wen G., Jones M.C. Bentley D.R.Nature 434:325-337(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [6] | Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [7] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1 AND 4). Tissue: Brain and Lung. |
| [8] | "Quantitative phosphoproteomics reveals widespread full phosphorylation site occupancy during mitosis." Olsen J.V., Vermeulen M., Santamaria A., Kumar C., Miller M.L., Jensen L.J., Gnad F., Cox J., Jensen T.S., Nigg E.A., Brunak S., Mann M. Sci. Signal. 3:RA3-RA3(2010) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. Tissue: Cervix carcinoma. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AY078165 mRNA. Translation: AAL86617.1. AY078166 mRNA. Translation: AAL86618.1. AY078167 mRNA. Translation: AAL86619.1. AL136580 mRNA. Translation: CAB66515.1. Frameshift. AY358837 mRNA. Translation: AAQ89196.1. AK290200 mRNA. Translation: BAF82889.1. AK291375 mRNA. Translation: BAF84064.1. AK293244 mRNA. Translation: BAG56778.1. AK125020 mRNA. Translation: BAG54124.1. AF002223 Genomic DNA. No translation available. AF274573 Genomic DNA. No translation available. CH471169 Genomic DNA. Translation: EAW99391.1. CH471169 Genomic DNA. Translation: EAW99392.1. CH471169 Genomic DNA. Translation: EAW99393.1. CH471169 Genomic DNA. Translation: EAW99395.1. BC025729 mRNA. Translation: AAH25729.1. BC030536 mRNA. Translation: AAH30536.1. |
| IPI | IPI00152138. IPI00152488. IPI00152491. IPI00177578. IPI00910291. IPI00943257. |
| RefSeq | NP_001171737.1. NM_001184808.1. NP_001229543.1. NM_001242614.1. NP_113650.2. NM_031462.3. NP_604394.1. NM_134445.3. NP_604395.1. NM_134446.3. |
| UniGene | Hs.522805. |
3D structure databases | |
| ProteinModelPortal | Q8TCZ2. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q8TCZ2. 1 interaction. |
| STRING | 9606.ENSP00000359403. |
PTM databases | |
| PhosphoSite | Q8TCZ2. |
Polymorphism databases | |
| DMDM | 74730601. |
Proteomic databases | |
| PaxDb | Q8TCZ2. |
| PRIDE | Q8TCZ2. |
Protocols and materials databases | |
| DNASU | 83692. |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000320893; ENSP00000325449; ENSG00000102181. ENST00000355149; ENSP00000347275; ENSG00000102181. ENST00000370377; ENSP00000359403; ENSG00000102181. ENST00000437787; ENSP00000394858; ENSG00000102181. ENST00000466436; ENSP00000417697; ENSG00000102181. ENST00000596292; ENSP00000469207; ENSG00000269478. ENST00000596721; ENSP00000470640; ENSG00000269478. ENST00000597984; ENSP00000473060; ENSG00000269478. ENST00000600347; ENSP00000468852; ENSG00000269478. ENST00000601765; ENSP00000471532; ENSG00000269478. |
| GeneID | 83692. |
| KEGG | hsa:83692. |
| UCSC | uc004fek.3. human. uc004fel.3. human. uc004fem.3. human. uc004fen.3. human. |
Organism-specific databases | |
| CTD | 83692. |
| GeneCards | GC0XM149934. |
| HGNC | HGNC:18237. CD99L2. |
| HPA | HPA038782. HPA038783. |
| MIM | 300846. gene. |
| neXtProt | NX_Q8TCZ2. |
| PharmGKB | PA30805. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | NOG42091. |
| HOVERGEN | HBG067989. |
| InParanoid | Q8TCZ2. |
| OMA | KYSTLHT. |
| OrthoDB | EOG4K0QPH. |
| PhylomeDB | Q8TCZ2. |
Gene expression databases | |
| ArrayExpress | Q8TCZ2. |
| Bgee | Q8TCZ2. |
| CleanEx | HS_CD99L2. |
| Genevestigator | Q8TCZ2. |
Family and domain databases | |
| InterPro | IPR022078. CD99L2. [Graphical view] |
| Pfam | PF12301. CD99L2. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| ChiTaRS | CD99L2. human. |
| GenomeRNAi | 83692. |
| NextBio | 72651. |
| SOURCE | Search... |
Entry information
| Entry name | C99L2_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q8TCZ2 Secondary accession number(s): A8K2D5 Q9BQG9 | ||||||||
| Entry history |
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| Entry status | 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. | ||||||||
Relevant documents
| Human chromosome X Human chromosome X: entries, gene names and cross-references to MIM |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
