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Protein

Probable steroid-binding protein 3

Gene

MP3

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

GO - Molecular functioni

Complete GO annotation...

Keywords - Ligandi

Lipid-binding, Steroid-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Probable steroid-binding protein 3
Short name:
AtMP3
Alternative name(s):
Membrane-associated progesterone-binding protein 21 Publication
Short name:
AtMAPR21 Publication
Gene namesi
Name:MP3
Synonyms:MAPR21 Publication
Ordered Locus Names:At2g24940
ORF Names:F27C12.14
OrganismiArabidopsis thaliana (Mouse-ear cress)
Taxonomic identifieri3702 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
Proteomesi
  • UP000006548 Componenti: Chromosome 2

Organism-specific databases

TAIRiAT2G24940.

Subcellular locationi

  • Nucleus 1 Publication

GO - Cellular componenti

  • cytosol Source: TAIR
  • endomembrane system Source: GO_Central
  • membrane Source: GO_Central
  • nucleus Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 100100Probable steroid-binding protein 3PRO_0000121750Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei1 – 11N-acetylmethionineCombined sources

Keywords - PTMi

Acetylation

Proteomic databases

PaxDbiQ9SK39.
PRIDEiQ9SK39.

PTM databases

iPTMnetiQ9SK39.

Expressioni

Inductioni

Down-regulated by auxin and cytokinin.1 Publication

Gene expression databases

GenevisibleiQ9SK39. AT.

Interactioni

Protein-protein interaction databases

BioGridi2384. 33 interactions.
STRINGi3702.AT2G24940.1.

Structurei

Secondary structure

1
100
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Beta strandi2 – 43Combined sources
Helixi5 – 84Combined sources
Beta strandi15 – 173Combined sources
Beta strandi20 – 245Combined sources
Beta strandi27 – 304Combined sources
Helixi32 – 343Combined sources
Helixi35 – 384Combined sources
Beta strandi39 – 424Combined sources
Turni43 – 497Combined sources
Helixi53 – 575Combined sources
Beta strandi63 – 653Combined sources
Helixi75 – 8915Combined sources
Beta strandi94 – 963Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1J03NMR-A1-100[»]
1T0GNMR-A2-100[»]
ProteinModelPortaliQ9SK39.
SMRiQ9SK39. Positions 1-100.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiQ9SK39.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini1 – 8282Cytochrome b5 heme-bindingAdd
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni1 – 8282Sterol-bindingBy similarityAdd
BLAST

Domaini

The cytochrome b5 heme-binding domain lacks the conserved iron-binding His residues at positions 37 and 61.Curated

Sequence similaritiesi

Belongs to the cytochrome b5 family. MAPR subfamily.Curated

Phylogenomic databases

eggNOGiKOG1110. Eukaryota.
ENOG4111UG0. LUCA.
HOGENOMiHOG000187840.
InParanoidiQ9SK39.
KOiK17278.
OMAiIYVSIRG.
OrthoDBiEOG09360PJZ.
PhylomeDBiQ9SK39.

Family and domain databases

Gene3Di3.10.120.10. 1 hit.
InterProiIPR001199. Cyt_B5-like_heme/steroid-bd.
[Graphical view]
PfamiPF00173. Cyt-b5. 1 hit.
[Graphical view]
SMARTiSM01117. Cyt-b5. 1 hit.
[Graphical view]
SUPFAMiSSF55856. SSF55856. 1 hit.

Sequencei

Sequence statusi: Complete.

Q9SK39-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MEFTAEQLSQ YNGTDESKPI YVAIKGRVFD VTTGKSFYGS GGDYSMFAGK
60 70 80 90 100
DASRALGKMS KNEEDVSPSL EGLTEKEINT LNDWETKFEA KYPVVGRVVS
Length:100
Mass (Da):11,031
Last modified:May 1, 2000 - v1
Checksum:i3CDB7DDEC1E7D3AE
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AC006585 Genomic DNA. Translation: AAD23019.1.
CP002685 Genomic DNA. Translation: AEC07640.1.
BT002446 mRNA. Translation: AAO00806.1.
BT008438 mRNA. Translation: AAP37797.1.
AY084294 mRNA. Translation: AAM60885.1.
PIRiC84642.
RefSeqiNP_180066.1. NM_128052.4.
UniGeneiAt.44381.
At.75616.

Genome annotation databases

EnsemblPlantsiAT2G24940.1; AT2G24940.1; AT2G24940.
GeneIDi817032.
GrameneiAT2G24940.1; AT2G24940.1; AT2G24940.
KEGGiath:AT2G24940.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AC006585 Genomic DNA. Translation: AAD23019.1.
CP002685 Genomic DNA. Translation: AEC07640.1.
BT002446 mRNA. Translation: AAO00806.1.
BT008438 mRNA. Translation: AAP37797.1.
AY084294 mRNA. Translation: AAM60885.1.
PIRiC84642.
RefSeqiNP_180066.1. NM_128052.4.
UniGeneiAt.44381.
At.75616.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1J03NMR-A1-100[»]
1T0GNMR-A2-100[»]
ProteinModelPortaliQ9SK39.
SMRiQ9SK39. Positions 1-100.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi2384. 33 interactions.
STRINGi3702.AT2G24940.1.

PTM databases

iPTMnetiQ9SK39.

Proteomic databases

PaxDbiQ9SK39.
PRIDEiQ9SK39.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiAT2G24940.1; AT2G24940.1; AT2G24940.
GeneIDi817032.
GrameneiAT2G24940.1; AT2G24940.1; AT2G24940.
KEGGiath:AT2G24940.

Organism-specific databases

TAIRiAT2G24940.

Phylogenomic databases

eggNOGiKOG1110. Eukaryota.
ENOG4111UG0. LUCA.
HOGENOMiHOG000187840.
InParanoidiQ9SK39.
KOiK17278.
OMAiIYVSIRG.
OrthoDBiEOG09360PJZ.
PhylomeDBiQ9SK39.

Miscellaneous databases

EvolutionaryTraceiQ9SK39.
PROiQ9SK39.

Gene expression databases

GenevisibleiQ9SK39. AT.

Family and domain databases

Gene3Di3.10.120.10. 1 hit.
InterProiIPR001199. Cyt_B5-like_heme/steroid-bd.
[Graphical view]
PfamiPF00173. Cyt-b5. 1 hit.
[Graphical view]
SMARTiSM01117. Cyt-b5. 1 hit.
[Graphical view]
SUPFAMiSSF55856. SSF55856. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiSBP3_ARATH
AccessioniPrimary (citable) accession number: Q9SK39
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 1, 2005
Last sequence update: May 1, 2000
Last modified: September 7, 2016
This is version 108 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.