Why "Motile sperm domain-containing protein 2" has nothing to do with "sperm"?
1
0
Entering edit mode
7.0 years ago
Farbod ★ 3.4k

Hi Biostars, (maybe my question is more biological than bioinformatic, of course I have asked it in other website but I could not find the answer, yet. If it is "OFFTOPIC" please remove it).

One of my rna-seq sequences has annotated with "motile sperm domain-containing protein 2".

I have searched the databases (e.g uniprot) and related GO terms but it seems that it has not any relation to "sperm" and/or "spermatogenesis".

Why is that?

My questions:

1- Does this gene has any relation to sperm/sperm motility? (please give me the reference)

2- If 1 = Negative, why there is a "motile sperm" in this gene's "name"?

NOTE: I have found it in brain samples!

~ Best

gene annotation biology • 2.2k views
ADD COMMENT
3
Entering edit mode

MOSPD2 function. As to why certain genes are named the way they are has its roots in historical observations. It appears to be highly expressed in immune cells.

ADD REPLY
0
Entering edit mode

Hi @genomax, and thanks. So are you agree that MOSPD2 has noting to do with sperm?

ADD REPLY
1
Entering edit mode

https://en.wikipedia.org/wiki/Major_sperm_protein. Domain (motile sperm domain, also called major sperm domain) found in these proteins (Major Sperm Protein) is conserved evolutionarily and the protein you mentioned above has this domain at position: 327 – 445. More information on this PFAM domain: http://www.genome.jp/dbget-bin/www_bget?pfam:Motile_Sperm and http://pfam.xfam.org/family/Motile_Sperm.

ADD REPLY
0
Entering edit mode

Dear @cpad0112 Hi and Thanks. Can you clarify me that this gene has role in sperm swimming speed or not? what does having same/shared conserved domain mean here?

ADD REPLY
1
Entering edit mode

Can you clarify me that this gene has role in sperm swimming speed or not?

Unless scientifically proven (by reproducible experiments and establish in models), it is not easy to assign a function to protein. Hence sharing a functional sequence motif doesn't imply the same function (non-functional unless proven - to be conservative)

what does having same/shared conserved domain mean here?

That is the observation at sequence level. One has to prove in lab.

To answer your question, it is unknown at this point whether it has role in sperm swimming speed or not, unless some publications (reproducible research) say so.

ADD REPLY
2
Entering edit mode

[Grumble]I just answered this exact question on the biology stackexchange.

ADD REPLY
0
Entering edit mode

Many gene names don't really make sense, especially if their name is derived from some homology with a certain protein domain.

ADD REPLY
2
Entering edit mode
7.0 years ago

[Not really a bioinformatics question, but since I know the answer, here goes]

MSP (major sperm protein) was first identified in nematode sperm. It forms filaments that drive sperm motility (crawling, not swimming). The MSP domain is evolutionarily conserved in a variety of transmembrane proteins involved in vesicle fusion, trafficking, and cell signaling, and is not limited to sperm.

PM/email me if you want more info.

ADD COMMENT

Login before adding your answer.

Traffic: 2965 users visited in the last hour
Help About
FAQ
Access RSS
API
Stats

Use of this site constitutes acceptance of our User Agreement and Privacy Policy.

Powered by the version 2.3.6