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Gene: CD99 (CD99 molecule (Xg blood group)) Homo sapiens
Symbol: CD99
Name: CD99 molecule (Xg blood group)
Description: Predicted to be involved in T cell extravasation; homotypic cell-cell adhesion; and positive regulation of neutrophil extravasation. Localizes to the focal adhesion.
Type: protein-coding
RefSeq Status: REVIEWED
Also known as: 12E7; antigen identified by monoclonal 12E7, Y homolog; antigen identified by monoclonal antibodies 12E7, F21 and O13; CD99 antigen; CD99 molecule; cell surface antigen 12E7; cell surface antigen HBA-71; cell surface antigen O13; E2 antigen; HBA71; MIC2; MIC2 (monoclonal antibody 12E7); MIC2X; MIC2Y; MSK5X; surface antigen MIC2; T-cell surface glycoprotein E2
Mus musculus (house mouse) : Cd99 (CD99 antigen)  MGI  Alliance
Rattus norvegicus (Norway rat) : Cd99 (CD99 molecule (Xg blood group))  Alliance
Chinchilla lanigera (long-tailed chinchilla) : Cd99 (CD99 molecule (Xg blood group))
Pan paniscus (bonobo/pygmy chimpanzee) : CD99 (CD99 molecule (Xg blood group))
Canis lupus familiaris (dog) : CD99 (CD99 molecule)
Sus scrofa (pig) : CD99 (CD99 molecule (Xg blood group))
Heterocephalus glaber (naked mole-rat) : Cd99 (CD99 molecule (Xg blood group))
more info ...
Related Pseudogenes: CD99P1  
Allele / Splice: See ClinVar data
Latest Assembly: GRCh38 - Human Genome Assembly GRCh38
Human AssemblyChrPosition (strand)SourceGenome Browsers
GRCh38 EnsemblX2,691,187 - 2,741,309 (+)Ensembl
GRCh38Y2,691,295 - 2,741,309 (+)NCBIGRCh38GRCh38hg38GRCh38
GRCh38X2,691,295 - 2,741,309 (+)NCBIGRCh38GRCh38hg38GRCh38
GRCh37Y2,559,228 - 2,609,350 (+)NCBIGRCh37GRCh37hg19GRCh37
GRCh37X2,609,228 - 2,659,350 (+)ENTREZGENEGRCh37GRCh37hg19GRCh37
Build 36Y2,619,228 - 2,669,350 (+)NCBINCBI36hg18NCBI36
Build 36X2,619,228 - 2,669,350 (+)NCBINCBI36hg18NCBI36
Build 34Y2,602,588 - 2,652,709NCBI
CeleraX6,889,623 - 6,939,779 (+)NCBI
Cytogenetic MapXp22.33 and Yp11.2NCBI
HuRefX550,662 - 601,242 (+)NCBIHuRef
CHM1_1X2,639,530 - 2,689,681 (+)NCBICHM1_1
JBrowse: View Region in Genome Browser (JBrowse)

Disease Annotations
Gene-Chemical Interaction Annotations
Gene Ontology Annotations
References - curated
References - uncurated


Comparative Map Data
Position Markers
miRNA Target Status


RNA-SEQ Expression


Nucleotide Sequences
Protein Sequences
Clinical Variants

Additional Information

External Database Links
Nomenclature History
More on CD99
Alliance Gene
Ensembl Gene
JBrowse: hg19 hg38
HGNC Report
NCBI Genome Data Viewer

RGD Object Information
RGD ID: 1344139
Created: 2005-03-08
Species: Homo sapiens
Last Modified: 2020-02-04
Status: ACTIVE


RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.