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Entry version 87 (12 Aug 2020)
Sequence version 1 (01 Jul 1993)
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Protein

Phycobiliprotein ApcE

Gene

apcE

Organism
Synechocystis sp. (strain PCC 6714) (Aphanocapsa sp. (strain PCC 6714))
Status
Reviewed-Annotation score:

Annotation score:3 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Protein inferred from homologyi <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>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
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei190Phycocyanobilin chromophore (covalent; via 1 link)By similarity1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

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

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Phycobiliprotein ApcE (EC:4.-.-.-)
Alternative name(s):
Anchor polypeptide
L-CM 100.5
Phycobilisome 100.5 kDa core-membrane linker polypeptide
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:apcE
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiSynechocystis sp. (strain PCC 6714) (Aphanocapsa sp. (strain PCC 6714))
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri1147 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiBacteriaCyanobacteriaSynechococcalesMerismopediaceaeSynechocystisunclassified Synechocystis

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Antenna complex, Membrane, Phycobilisome, Thylakoid

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001992651 – 896Phycobiliprotein ApcEAdd BLAST896

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

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

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>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

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
1147.D082_24510

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

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SMRi
Q02907

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini247 – 427PBS-linker 1PROSITE-ProRule annotationAdd BLAST181
Domaini508 – 689PBS-linker 2PROSITE-ProRule annotationAdd BLAST182
Domaini704 – 881PBS-linker 3PROSITE-ProRule annotationAdd BLAST178

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

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

Keywords - Domaini

Repeat

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
COG0237, Bacteria
COG0448, Bacteria

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.3130.20, 3 hits

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR009050, Globin-like_sf
IPR001297, PBS_linker_dom
IPR038255, PBS_linker_sf
IPR012128, Phycobilisome_asu/bsu

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00427, PBS_linker_poly, 3 hits
PF00502, Phycobilisome, 2 hits

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF46458, SSF46458, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS51445, PBS_LINKER, 3 hits

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

Q02907-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSVKASGGSS LARPQLYQTF AVSAISQAEQ QDRFLEGSEL NELTRIFQSG
60 70 80 90 100
SLRLEIAETL TENADLIVSR AANRIFTGGS PLSYLEKPVE RQPALVGASS
110 120 130 140 150
DSRNGSVTYA ESNGGGGLFG GLRSVFSSTG PIPPGFRPIN IARYGPSNMQ
160 170 180 190 200
KSLRDMSWFL RYTTYAIVAG GPNIIVVNTR GLKEVIENAC SIDATIVRIQ
210 220 230 240 250
EMRAASADYF RANAQAKEIV LQYFDILLSE FKAPTPANKV RQGPSNDIQG
260 270 280 290 300
LELPQSYFNA SAKRQKYAMK PGLSALEKNA VIKAAYRQIF ERDITKAYSQ
310 320 330 340 350
SISYLESQVR NGDISMKEFV RRLAKSPLYR KQFFEPFINS RALELAFRHI
360 370 380 390 400
LGRGPSSREE VQKYFAIVSN GGLPALVDAL VDSQEYSDYF 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 NRPTYGRQEM NQYFDIASKQ GFYAVVEAMI DSKEYSDAFG
660 670 680 690 700
EDTVPYERYL TPGGLQMRSA RVGSIREDIG QRVDKEVTPR FVELGQVSNL
710 720 730 740 750
RTEPEIAYRS NQGVYRQRQQ TKVFKLTSNY DKVAVKNAIR AAHRQVFERD
760 770 780 790 800
LEPYIINSEF TALESKLSNG 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):100,461
Last modified:July 1, 1993 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iBD1D14C2923E32A3
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
L02309 Genomic DNA Translation: AAA69685.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S59990

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L02309 Genomic DNA Translation: AAA69685.1
PIRiS59990

3D structure databases

SMRiQ02907
ModBaseiSearch...

Protein-protein interaction databases

STRINGi1147.D082_24510

Phylogenomic databases

eggNOGiCOG0237, Bacteria
COG0448, Bacteria

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
SUPFAMiSSF46458, SSF46458, 1 hit
PROSITEiView protein in PROSITE
PS51445, PBS_LINKER, 3 hits

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiAPCE_SYNY4
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: Q02907
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 1, 1993
Last sequence update: July 1, 1993
Last modified: August 12, 2020
This is version 87 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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