<p>I'm not sure I understand the question, but XP_019970915.1 is an 'NCBI Reference Sequence' ID for 'erythrocyte binding antigen-181' (<a href="https://www.ncbi.nlm.nih.gov/protein/XP_019970915.1/" rel="nofollow noreferrer">https://www.ncbi.nlm.nih.gov/protein/XP_019970915.1/</a>). If you look that protein up in UniProt you can find other identifiers/info and GO annotations etc (<a href="https://www.uniprot.org/uniprot/A0A151LVZ9" rel="nofollow noreferrer">https://www.uniprot.org/uniprot/A0A151LVZ9</a>). Does that answer your question?</p>

CC BY-SA 4.0
2020-11-17T07:47:01.090Z
In full thanks!
Spartan 117
CC BY-SA 4.0
2020-11-15T22:59:26.480Z
2020-11-15T22:59:26.480Z
jared_mamrot
<p>I got a FASTA file from NCBI RefSeq.
These proteins are annotated with IDs like this : protein_id=XP_019970915.1.
What type of ID is this? I would like to have them converted in TrEMBL IDs in order to do, later, a GO term enrichment but I have to know where I am starting from.
Thank you in advance</p>

<go-enrichment><identifiers>
What type of Protein ID is this?
# What type of Protein ID is this?

(Asked by: username_0 on 2020-11-12)

I got a FASTA file from NCBI RefSeq.
These proteins are annotated with IDs like this : protein\_id=XP\_019970915.1.
What type of ID is this? I would like to have them converted in TrEMBL IDs in order to do, later, a GO term enrichment but I have to know where I am starting from.
Thank you in advance

**Tags:** go-enrichment, identifiers

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## 1 answers

### Answer by username_1 on 2020-11-15. Score: 2 | Accepted answer

I'm not sure I understand the question, but XP\_019970915.1 is an 'NCBI Reference Sequence' ID for 'erythrocyte binding antigen-181' (<https://www.ncbi.nlm.nih.gov/protein/XP_019970915.1/>). If you look that protein up in UniProt you can find other identifiers/info and GO annotations etc (<https://www.uniprot.org/uniprot/A0A151LVZ9>). Does that answer your question?

> **Comments:**
> **username_0**: In full thanks!  

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