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PXD007728

PXD007728 is an original dataset announced via ProteomeXchange.

Dataset Summary
TitleStress response of a marine ammonia-oxidizing archaeon informs physiological status of environmental populations
DescriptionHigh representation by ammonia-oxidizing archaea (AOA) in marine systems is consistent with their high affinity for ammonia, efficient carbon fixation, and copper (Cu)-centric respiratory system. However, little is known about their response to nutrient stress. We therefore used global transcriptional and proteomic analyses to characterize the response of a model AOA, Nitrosopumilus maritimus SCM1, to ammonia starvation, Cu limitation, and Cu excess. Most predicted protein-coding genes were transcribed in exponentially growing cells, and of ~74% detected in the proteome, ~6% were modified by N-terminal acetylation. The general response to ammonia starvation and Cu-stress was down-regulation of genes for energy generation and biosynthesis. Cells rapidly depleted transcripts for the A and B subunits of ammonia monooxygenase (AMO) in response to ammonia starvation, yet retained relatively high levels of transcripts for the C subunit. Thus, similar to ammonia-oxidizing bacteria, selective retention of amoC transcripts during starvation appears important for subsequent recovery, and also suggests that AMO subunit transcript ratios could be used to assess the physiological status of marine populations. Unexpectedly, cobalamin biosynthesis was upregulated in response to both ammonia starvation and Cu-stress, indicating the importance of this cofactor in retaining functional integrity during times of stress.
HostingRepositoryPRIDE
AnnounceDate2024-10-22
AnnouncementXMLSubmission_2024-10-22_04:40:24.881.xml
DigitalObjectIdentifier
ReviewLevelPeer-reviewed dataset
DatasetOriginOriginal dataset
RepositorySupportUnsupported dataset by repository
PrimarySubmitterRachel Lundeen
SpeciesList scientific name: Nitrosopumilus maritimus SCM1; NCBI TaxID: 436308;
ModificationListmono N-acetylated residue; iodoacetamide derivatized residue
InstrumentQ Exactive HF; Q Exactive
Dataset History
RevisionDatetimeStatusChangeLog Entry
02017-09-12 03:58:00ID requested
12017-10-26 23:52:17announced
22024-10-22 04:40:25announced2024-10-22: Updated project metadata.
Publication List
Qin W, Amin SA, Lundeen RA, Heal KR, Martens-Habbena W, Turkarslan S, Urakawa H, Costa KC, Hendrickson EL, Wang T, Beck DA, Tiquia-Arashiro SM, Taub F, Holmes AD, Vajrala N, Berube PM, Lowe TM, Moffett JW, Devol AH, Baliga NS, Arp DJ, Sayavedra-Soto LA, Hackett M, Armbrust EV, Ingalls AE, Stahl DA, Stress response of a marine ammonia-oxidizing archaeon informs physiological status of environmental populations. ISME J, 12(2):508-519(2018) [pubmed]
10.1038/ismej.2017.186;
Keyword List
curator keyword: Biological
submitter keyword: marine ammonia oxidizing archaea,Nitrosopumilus maritimus (strain SCM1)
Contact List
Anitra Ingalls
contact affiliationUniversity of Washington
contact emailaingalls@uw.edu
lab head
Rachel Lundeen
contact affiliationUniversity of Washington
contact emailralundeen@gmail.com
dataset submitter
Full Dataset Link List
Dataset FTP location
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PRIDE project URI
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