Skip main navigation

Learn how to use public databases to collect information about a protein sequence

Learn how to use public databases to collect information about a protein sequence.

In this video, Martin Aslett demonstrates how to use public databases to collect information about a protein sequence. These pieces of information will assist us in inferring the potential function of a protein.

In this video, you will learn how, using online searches of resources such as Interpro, Pfam and Phobius, evidence of a protein’s likely function may be accumulated.

Notice that the web interface of Interpro that appears in the video is not the same as the one currently accessible online. This is not a problem since the same query boxes and output information will be displayed.

For this example we will use a Salmonella enterica protein. You can find the protein sequence below.

>NP_456741.1 hypothetical protein STY2412 MMTYIWWSLPLTLAVFFAARRLAAHFKMPLLNPLLVAMVVIIPFLLLTGIPYEHYFKGSEVLNDLLQPAV VALAYPLYEQLHQIRARWKSIISICFVGSLVAMITGTSVALLMGATPEIAASVLPKSVTTPIAMAVGGSI GGIPAISAVCVIFVGILGAVFGHTLLNAMHIRTKAARGLAMGTASHALGTARCAELDYQEGAFSSLALVI CGIITSLVAPFLFPLILAVMR 

To get the most from this step, we recommend that you try to replicate the steps. You can do so by pausing the video and performing the tasks in your internet browser or you can watch it first and replicate the steps later.

This article is from the free online

Bacterial Genomes I: From DNA to Protein Function Using Bioinformatics

Created by
FutureLearn - Learning For Life

Reach your personal and professional goals

Unlock access to hundreds of expert online courses and degrees from top universities and educators to gain accredited qualifications and professional CV-building certificates.

Join over 18 million learners to launch, switch or build upon your career, all at your own pace, across a wide range of topic areas.

Start Learning now