Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Phycobiliprotein ApcE

Gene

apcE

Organism
Synechocystis sp. (strain PCC 6803 / Kazusa)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

This protein is postulated to act both as terminal energy acceptor (by its phycobilin-like domains) and as a linker polypeptide (by its repeats and arms) that stabilizes the phycobilisome core architecture. Has intrinsic bilin lyase activity (By similarity).By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei190Phycocyanobilin chromophore (covalent; via 1 link)By similarity1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionLyase
Biological processElectron transport, Photosynthesis, Transport
LigandBile pigment, Chromophore

Names & Taxonomyi

Protein namesi
Recommended name:
Phycobiliprotein ApcE (EC:4.-.-.-)
Alternative name(s):
Phycobilisome LCM core-membrane linker polypeptide
Phycobilisome core-membrane linker phycobiliprotein ApcE
Gene namesi
Name:apcE
Ordered Locus Names:slr0335
OrganismiSynechocystis sp. (strain PCC 6803 / Kazusa)
Taxonomic identifieri1111708 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaSynechococcalesMerismopediaceaeSynechocystis
Proteomesi
  • UP000001425 Componenti: Chromosome

Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Membrane, Phycobilisome, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00004031851 – 896Phycobiliprotein ApcEAdd BLAST896

Post-translational modificationi

Contains one covalently linked bilin chromophore. This protein autochromophorylates (By similarity).By similarity

Proteomic databases

PaxDbiQ55544
PRIDEiQ55544

Interactioni

Subunit structurei

Heterodimer of ApcF (a variant beta-allophycocyanin). Phycobilisomes of this organism are composed of a two cylinder core, from which six rods radiate. The core is mainly composed of allophycocyanin alpha and beta chains and of minor components (By similarity).By similarity

Binary interactionsi

WithEntry#Exp.IntActNotes
trxAP522314EBI-862826,EBI-862916

Protein-protein interaction databases

IntActiQ55544, 7 interactors
STRINGi1148.SYNGTS_2079

Structurei

Secondary structure

1896
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Turni255 – 257Combined sources3
Helixi275 – 290Combined sources16
Helixi296 – 298Combined sources3
Helixi300 – 310Combined sources11
Helixi316 – 325Combined sources10
Helixi327 – 333Combined sources7
Turni334 – 336Combined sources3
Helixi339 – 351Combined sources13
Helixi358 – 382Combined sources25
Helixi384 – 389Combined sources6
Turni390 – 393Combined sources4
Helixi732 – 747Combined sources16
Helixi753 – 759Combined sources7
Helixi761 – 768Combined sources8
Helixi774 – 782Combined sources9
Helixi785 – 791Combined sources7
Beta strandi793 – 795Combined sources3
Helixi797 – 808Combined sources12
Beta strandi809 – 811Combined sources3
Helixi816 – 829Combined sources14
Helixi831 – 839Combined sources9
Helixi842 – 847Combined sources6
Beta strandi850 – 852Combined sources3

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2L06NMR-A254-401[»]
3OHWX-ray2.70A/B711-858[»]
3OSJX-ray2.30A/B/C/D254-400[»]
ProteinModelPortaliQ55544
SMRiQ55544
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiQ55544

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini247 – 427PBS-linker 1PROSITE-ProRule annotationAdd BLAST181
Domaini508 – 684PBS-linker 2PROSITE-ProRule annotationAdd BLAST177
Domaini703 – 881PBS-linker 3PROSITE-ProRule annotationAdd BLAST179

Sequence similaritiesi

Belongs to the phycobilisome linker protein family.PROSITE-ProRule annotation

Keywords - Domaini

Repeat

Phylogenomic databases

HOGENOMiHOG000276791
InParanoidiQ55544
KOiK02096
OMAiFRKVPQF
PhylomeDBiQ55544

Family and domain databases

Gene3Di1.10.3130.20, 3 hits
InterProiView protein in InterPro
IPR009050 Globin-like_sf
IPR001297 PBS_linker_dom
IPR038255 PBS_linker_sf
IPR012128 Phycobilisome_asu/bsu
PfamiView protein in Pfam
PF00427 PBS_linker_poly, 3 hits
PF00502 Phycobilisome, 2 hits
ProDomiView protein in ProDom or Entries sharing at least one domain
PD000852 PBS_linker_poly, 3 hits
SUPFAMiSSF46458 SSF46458, 2 hits
PROSITEiView protein in PROSITE
PS51445 PBS_LINKER, 3 hits

Sequencei

Sequence statusi: Complete.

Q55544-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSVKASGGSS LARPQLYQTV PVSAISQAEQ QDRFLEGSEL NELTAYFQSG
60 70 80 90 100
ALRLEIAETL TQNADLIVSR AANRIFTGGS PLSYLEKPVE RQPALVGASS
110 120 130 140 150
DSRNGSVTYA ESNGSGGLFG GLRSVFSSTG PIPPGFRPIN IARYGPSNMQ
160 170 180 190 200
KSLRDMSWFL RYTTYAIVAG DPNIIVVNTR GLKEVIENAC SIDATIVAIQ
210 220 230 240 250
EMRAASADYF RNNAQAKEIV LQYFDILLSE FKAPTPANKV RQGPSNDIQG
260 270 280 290 300
LELPQSYFNA AAKRQKYAMK PGLSALEKNA VIKAAYRQIF ERDITKAYSQ
310 320 330 340 350
SISYLESQVR NGDISMKEFV RRLAKSPLYR KQFFEPFINS RALELAFRHI
360 370 380 390 400
LGRGPSSREE VQKYFSIVSS GGLPALVDAL VDSQEYADYF GEETVPYLRG
410 420 430 440 450
LGVEAQECRN WGMQQDLFSY SAPFRKVPQF ITTFAQYDRP LPDQHVYGSG
460 470 480 490 500
NDPLEIQFGA IFPKETRNPS KRPAPFNKDT KRILIHRGPA VNNQVGNPSA
510 520 530 540 550
VGEFPGSLGA KVFRLNGGLP GAKVGKNTGT SVKFGESSTQ ALIRAAYRQV
560 570 580 590 600
FGRDLYEGQR LSVAEIQLEN GDISVREFIK RLAKSELFLK LYWAPHYVCK
610 620 630 640 650
AIEYMHRRLL GRPTYGRQEM NQYFDIASKQ GFYAVVEAMI DSKEYSDAFG
660 670 680 690 700
EDTVPYERYL TPGGLQMRSA RVGSLREDIG QRVDKEVTPR FVELGQVSAI
710 720 730 740 750
RTEPEIAYRS NQGVTRQRQQ TKVFKLVSTY DKVAVKNAIR AAYRQVFERD
760 770 780 790 800
LEPYIINSEF TALESKLSNN EINVKEFIEG LGTSELYMKE FYAPYPNTKV
810 820 830 840 850
IEMGTKHFLG RAPLNQKEIQ QYNQILASQG LKAFIGAMVN GMEYLQTFGE
860 870 880 890
DTVPYRRFPT LPAANFPNTE RLYNKLTKQD KELVVPSFTP VVKVGG
Length:896
Mass (Da):100,296
Last modified:November 1, 1996 - v1
Checksum:i05D4358C5F0BCD8C
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000022 Genomic DNA Translation: BAA10042.1
PIRiS76064

Genome annotation databases

EnsemblBacteriaiBAA10042; BAA10042; BAA10042
KEGGisyn:slr0335

Similar proteinsi

Entry informationi

Entry nameiAPCE_SYNY3
AccessioniPrimary (citable) accession number: Q55544
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 11, 2011
Last sequence update: November 1, 1996
Last modified: March 28, 2018
This is version 114 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Cookie policy

We would like to use anonymized google analytics cookies to gather statistics on how uniprot.org is used in aggregate. Learn more

UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health