SEA-PHAGES Logo

The official website of the HHMI Science Education Alliance-Phage Hunters Advancing Genomics and Evolutionary Science program.

Welcome to the forums at seaphages.org. Please feel free to ask any questions related to the SEA-PHAGES program. Any logged-in user may post new topics and reply to existing topics. If you'd like to see a new forum created, please contact us using our form or email us at info@seaphages.org.

All posts created by Wabush

| posted 25 Mar, 2021 21:18
Hi Chris,

Thank-you so much for the explanation. It was very nice of you to write such a nice detailed response. Very helpful indeed. Much appreciated!

Kieran
Posted in: Functional AnnotationPhage gene annotation has matching phage genes have 4 different proteins - which one is a match?
| posted 06 Mar, 2021 02:01
Wabush
I am annotating the phage Crewmate (gene '28'smile in PECAAN and I would like some guidance as to which protein function I should assign to the gene.

- The NCBI BlastP of the gene returns several matching phages and their proteins.
- (See the attached image for details) The first 9 phages returned have high coverage (99.28%-100%), high alignment (>96%), low e-values (0), and high identity (>90%). (see the attached image for details)but they have annotated 4 different proteins and I am unsure which one is a good reference for the Crewmate gene 28? The proteins assigned to the 9 phages are:

- Cas4 family exonuclease (4 of 9 phages called this)
- Exonuclease (3 of 9 phages called this)
- RepA-like helicase (1 of 9 phages called this)
- Hypothetical protein (1 of 9 phages called this)

Thank-you kindly for reading and for any help offered,
Kieran

References:
A. Attached to this post is a screen shot of NCBI Blastp in PECAAN
B. Protein Sequence:
MTTPKVSTIKRGGARFYVDPDDGKIKVPGVTSIIGMLPKEFLRYWAAKEVAQTAVDSLPTVLQMILNDQSDAAVDFLKKSPDRNTRKAADTGTAAHDLFERMAKGETVGRVHPDLEPFVRHFDEFLTVAKPEYHFLEETVWSDKHAYAGSFDAYATIGGERLWLDNKTTRSGIHEEVGIQLAAYRFADSIIRADGGRVPMPTADGGAVLHVRPEGWKLVPVRCDEELFEVFLHLREVFKYEKEIKSTIVGREVFSGPAEDAPTGPKRRTPRARKAAE
Posted in: Functional AnnotationPhage gene annotation has matching phage genes have 4 different proteins - which one is a match?
| posted 06 Mar, 2021 02:01
I am annotating the phage Crewmate (gene 2smile in PECAAN and I would like some guidance as to which protein function I should assign to the gene.

- The NCBI BlastP of the gene returns several matching phages and their proteins.
- (See the attached image for details) The first 9 phages returned have high coverage (99.28%-100%), high alignment (>96%), low e-values (0), and high identity (>90%). (see the attached image for details)but they have annotated 4 different proteins and I am unsure which one is a good reference for the Crewmate gene 28? The proteins assigned to the 9 phages are:

- Cas4 family exonuclease (4 of 9 phages called this)
- Exonuclease (3 of 9 phages called this)
- RepA-like helicase (1 of 9 phages called this)
- Hypothetical protein (1 of 9 phages called this)

Thank-you kindly for reading and for any help offered,
Kieran

References:
A. Attached to this post is a screen shot of NCBI Blastp in PECAAN
B. Protein Sequence:
MTTPKVSTIKRGGARFYVDPDDGKIKVPGVTSIIGMLPKEFLRYWAAKEVAQTAVDSLPTVLQMILNDQSDAAVDFLKKSPDRNTRKAADTGTAAHDLFERMAKGETVGRVHPDLEPFVRHFDEFLTVAKPEYHFLEETVWSDKHAYAGSFDAYATIGGERLWLDNKTTRSGIHEEVGIQLAAYRFADSIIRADGGRVPMPTADGGAVLHVRPEGWKLVPVRCDEELFEVFLHLREVFKYEKEIKSTIVGREVFSGPAEDAPTGPKRRTPRARKAAE
Posted in: Functional AnnotationPhage gene annotation has matching phage genes have 4 different proteins - which one is a match?