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Human Gene GPA33 (ENST00000367868.4) from GENCODE V50
  Description: glycoprotein A33 (from RefSeq NM_005814.3)
Gencode Transcript: ENST00000367868.4
Gencode Gene: ENSG00000143167.14
Transcript (Including UTRs)
   Position: hg38 chr1:167,052,836-167,090,377 Size: 37,542 Total Exon Count: 7 Strand: -
Coding Region
   Position: hg38 chr1:167,054,334-167,090,287 Size: 35,954 Coding Exon Count: 7 

Page IndexSequence and LinksUniProtKB CommentsPrimersMalaCardsCTD
RNA-Seq ExpressionMicroarray ExpressionRNA StructureProtein StructureOther SpeciesGO Annotations
mRNA DescriptionsOther NamesMethods
Data last updated at UCSC: 2026-07-12 09:30:09

-  Comments and Description Text from UniProtKB
  ID: GPA33_HUMAN
DESCRIPTION: RecName: Full=Cell surface A33 antigen; AltName: Full=Glycoprotein A33; Flags: Precursor;
FUNCTION: May play a role in cell-cell recognition and signaling.
SUBCELLULAR LOCATION: Membrane; Single-pass type I membrane protein.
TISSUE SPECIFICITY: Expressed in normal gastrointestinal epithelium and in 95% of colon cancers.
PTM: N-glycosylated, contains approximately 8 kDa of N-linked carbohydrate.
PTM: Palmitoylated.
SIMILARITY: Contains 1 Ig-like C2-type (immunoglobulin-like) domain.
SIMILARITY: Contains 1 Ig-like V-type (immunoglobulin-like) domain.
WEB RESOURCE: Name=Atlas of Genetics and Cytogenetics in Oncology and Haematology; URL="http://atlasgeneticsoncology.org//Genes/GPA33ID40735ch1q23.html";

-  Primer design for this transcript
 

Primer3Plus can design qPCR Primers that straddle exon-exon-junctions, which amplify only cDNA, not genomic DNA.
Click here to load the transcript sequence and exon structure into Primer3Plus

Exonprimer can design one pair of Sanger sequencing primers around every exon, located in non-genic sequence.
Click here to open Exonprimer with this transcript

To design primers for a non-coding sequence, zoom to a region of interest and select from the drop-down menu: View > In External Tools > Primer3


-  MalaCards Disease Associations
  MalaCards Gene Search: GPA33
Diseases sorted by gene-association score: infant botulism (2)

-  Comparative Toxicogenomics Database (CTD)
  The following chemicals interact with this gene

-  RNA-Seq Expression Data from GTEx (53 Tissues, 570 Donors)
  Highest median expression: 107.87 RPKM in Colon - Transverse
Total median expression: 178.58 RPKM



View in GTEx track of Genome Browser    View at GTEx portal     View GTEx Body Map

+  Microarray Expression Data
 
Expression ratio colors:

GNF Expression Atlas 2 Data from U133A and GNF1H Chips

      
      
      
     
    
     
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-  mRNA Secondary Structure of 3' and 5' UTRs
 
RegionFold EnergyBasesEnergy/Base
Display As
5' UTR -27.7090-0.308 Picture PostScript Text
3' UTR -536.101498-0.358 Picture PostScript Text

The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.

-  Protein Domain and Structure Information
  InterPro Domains: Graphical view of domain structure
IPR007110 - Ig-like
IPR013783 - Ig-like_fold
IPR003598 - Ig_sub2
IPR013106 - Ig_V-set
IPR003596 - Ig_V-set_subgr

Pfam Domains:
PF07686 - Immunoglobulin V-set domain

ModBase Predicted Comparative 3D Structure on Q99795
FrontTopSide
The pictures above may be empty if there is no ModBase structure for the protein. The ModBase structure frequently covers just a fragment of the protein. You may be asked to log onto ModBase the first time you click on the pictures. It is simplest after logging in to just click on the picture again to get to the specific info on that model.

-  Orthologous Genes in Other Species
  Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
MouseRatZebrafishD. melanogasterC. elegansS. cerevisiae
Genome BrowserGenome BrowserNo orthologNo orthologNo orthologNo ortholog
Gene Details     
Gene Sorter     
MGIRGD    
Protein SequenceProtein Sequence    
AlignmentAlignment    

-  Gene Ontology (GO) Annotations with Structured Vocabulary
  Molecular Function:
GO:0005515 protein binding
GO:0038023 signaling receptor activity

Biological Process:
GO:0007165 signal transduction

Cellular Component:
GO:0005887 integral component of plasma membrane
GO:0016020 membrane
GO:0016021 integral component of membrane
GO:0070062 extracellular exosome


-  Descriptions from all associated GenBank mRNAs
  U79725 - Human A33 antigen precursor mRNA, complete cds.
JD552224 - Sequence 533248 from Patent EP1572962.
BC069705 - Homo sapiens glycoprotein A33 (transmembrane), mRNA (cDNA clone MGC:97280 IMAGE:7262529), complete cds.
BC069723 - Homo sapiens glycoprotein A33 (transmembrane), mRNA (cDNA clone MGC:97292 IMAGE:7262541), complete cds.
BC069745 - Homo sapiens glycoprotein A33 (transmembrane), mRNA (cDNA clone MGC:97304 IMAGE:7262553), complete cds.
BC069761 - Homo sapiens glycoprotein A33 (transmembrane), mRNA (cDNA clone MGC:97316 IMAGE:7262565), complete cds.
BC069789 - Homo sapiens glycoprotein A33 (transmembrane), mRNA (cDNA clone MGC:97233 IMAGE:7262482), complete cds.
JD138525 - Sequence 119549 from Patent EP1572962.
JD270424 - Sequence 251448 from Patent EP1572962.
BC107164 - Homo sapiens glycoprotein A33 (transmembrane), mRNA (cDNA clone MGC:129986 IMAGE:40034324), complete cds.
BC107165 - Homo sapiens glycoprotein A33 (transmembrane), mRNA (cDNA clone MGC:129987 IMAGE:40034331), complete cds.
JD320666 - Sequence 301690 from Patent EP1572962.
JD273653 - Sequence 254677 from Patent EP1572962.
JD202211 - Sequence 183235 from Patent EP1572962.
JD108718 - Sequence 89742 from Patent EP1572962.
JD484482 - Sequence 465506 from Patent EP1572962.
JD544016 - Sequence 525040 from Patent EP1572962.
JD160627 - Sequence 141651 from Patent EP1572962.
JD121266 - Sequence 102290 from Patent EP1572962.
JD278787 - Sequence 259811 from Patent EP1572962.
JD189517 - Sequence 170541 from Patent EP1572962.
JD269979 - Sequence 251003 from Patent EP1572962.
JD541649 - Sequence 522673 from Patent EP1572962.
JD156679 - Sequence 137703 from Patent EP1572962.
JD370040 - Sequence 351064 from Patent EP1572962.
JD158196 - Sequence 139220 from Patent EP1572962.
JD220625 - Sequence 201649 from Patent EP1572962.
JD415417 - Sequence 396441 from Patent EP1572962.
JD151101 - Sequence 132125 from Patent EP1572962.
JD142935 - Sequence 123959 from Patent EP1572962.
JD319913 - Sequence 300937 from Patent EP1572962.
JD412355 - Sequence 393379 from Patent EP1572962.
JD477450 - Sequence 458474 from Patent EP1572962.
JD393793 - Sequence 374817 from Patent EP1572962.
BC074830 - Homo sapiens glycoprotein A33 (transmembrane), mRNA (cDNA clone MGC:104092 IMAGE:30915543), complete cds.
BC074876 - Homo sapiens glycoprotein A33 (transmembrane), mRNA (cDNA clone MGC:103854 IMAGE:30915236), complete cds.
JD209358 - Sequence 190382 from Patent EP1572962.
JD453002 - Sequence 434026 from Patent EP1572962.
JD137692 - Sequence 118716 from Patent EP1572962.
AK312833 - Homo sapiens cDNA, FLJ93270, Homo sapiens glycoprotein A33 (transmembrane) (GPA33), mRNA.
HQ447448 - Synthetic construct Homo sapiens clone IMAGE:100070776; CCSB013999_03 glycoprotein A33 (transmembrane) (GPA33) gene, encodes complete protein.
KJ892966 - Synthetic construct Homo sapiens clone ccsbBroadEn_02360 GPA33 gene, encodes complete protein.
CU687006 - Synthetic construct Homo sapiens gateway clone IMAGE:100022555 5' read GPA33 mRNA.
JD435993 - Sequence 417017 from Patent EP1572962.

-  Other Names for This Gene
  Alternate Gene Symbols: ENST00000367868.1, ENST00000367868.2, ENST00000367868.3, GPA33_HUMAN, NM_005814, Q5VZP6, Q99795, uc001gea.1, uc001gea.2, uc001gea.3
UCSC ID: ENST00000367868.4
RefSeq Accession: NM_005814.3
Protein: Q99795 (aka GPA33_HUMAN or A33_HUMAN)
CCDS: CCDS1258.1

-  Methods, Credits, and Use Restrictions
  Click here for details on how this gene model was made and data restrictions if any.