<p><code>TCRVδ2</code> is not a gene, but it defines a specific subset of gamma-delta TCRs. You can look at <code>TRDC</code> (delta chain) and <code>TRGC1</code> and <code>TRGC2</code> (gamma chains). <code>TCRVδ2</code> should have the combo <code>TRDC-TRGC1</code>, while <code>TCRVδ1</code> should express <code>TRDC-TRGC2</code>. You may need to increase the resolution of your clustering, to avoid clustering the gamma-delta T cells with the NK cells.</p>

CC BY-SA 4.0
2021-08-05T17:05:40.963Z
Thank you so much. I have another question about gene symbols. CD45 is corresponding to PTPRC butler most of CD genes I can not find the corresponding official gene symbols. Please, do you know how I can find corresponding gene symbols for CD genes?
Mahta Mira
CC BY-SA 4.0
2021-08-05T16:44:56.467Z
2021-08-05T16:44:56.467Z
fra
<p>I have a Seurat object</p>
<pre><code>&gt; pbmc
An object of class Seurat 
48608 features across 11709 samples within 2 assays 
Active assay: SCT (22220 features, 3000 variable features)
 1 other assay present: RNA
 2 dimensional reductions calculated: pca, umap
&gt; 
</code></pre>
<p>I want to plot TCRVδ2</p>
<pre><code>&gt; FeaturePlot(pbmc,&quot;TCRVδ2&quot;)
Error: None of the requested features were found: TCRVδ2 in slot data
In addition: Warning message:
In FetchData(object = object, vars = c(dims, &quot;ident&quot;, features),  :
  The following requested variables were not found: TCRVδ2
&gt; 
</code></pre>
<p>This data base is about human TCR genes</p>
<p><a href="https://www.genenames.org/data/genegroup/#!/group/370" rel="nofollow noreferrer">https://www.genenames.org/data/genegroup/#!/group/370</a></p>
<p>But I even can not find this gene here</p>
<p>Do you know what is the corresponding symbol for this gene used in Seurat?</p>

<scrnaseq><gene><seurat>
Find corresponding symbol for gene used in Seurat
# Find corresponding symbol for gene used in Seurat

(Asked by: username_0 on 2021-08-05)

I have a Seurat object
> pbmc
An object of class Seurat 
48608 features across 11709 samples within 2 assays 
Active assay: SCT (22220 features, 3000 variable features)
 1 other assay present: RNA
 2 dimensional reductions calculated: pca, umap
> 

I want to plot TCRVδ2
> FeaturePlot(pbmc,"TCRVδ2")
Error: None of the requested features were found: TCRVδ2 in slot data
In addition: Warning message:
In FetchData(object = object, vars = c(dims, "ident", features),  :
  The following requested variables were not found: TCRVδ2
> 

This data base is about human TCR genes
https://www.genenames.org/data/genegroup/#!/group/370
But I even can not find this gene here
Do you know what is the corresponding symbol for this gene used in Seurat?

**Tags:** scrnaseq, gene, seurat

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## 1 answers

### Answer by username_1 on 2021-08-05. Score: 1 | Accepted answer

`TCRVδ2` is not a gene, but it defines a specific subset of gamma-delta TCRs. You can look at `TRDC` (delta chain) and `TRGC1` and `TRGC2` (gamma chains). `TCRVδ2` should have the combo `TRDC-TRGC1`, while `TCRVδ1` should express `TRDC-TRGC2`. You may need to increase the resolution of your clustering, to avoid clustering the gamma-delta T cells with the NK cells.

> **Comments:**
> **username_0**: Thank you so much. I have another question about gene symbols. CD45 is corresponding to PTPRC butler most of CD genes I can not find the corresponding official gene symbols. Please, do you know how I can find corresponding gene symbols for CD genes?  

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