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Entry version 75 (29 Sep 2021)
Sequence version 1 (01 Jun 2002)
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Protein

Apoptosis regulator Bcl-X

Gene

bcl-xl

Organism
Felis catus (Cat) (Felis silvestris catus)
Status
Unreviewed-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>
-Experimental evidence at transcript leveli <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

<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 - 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

Biological processApoptosisPROSITE-ProRule annotationARBA annotation

<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_and_taxonomy_section">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:
Apoptosis regulator Bcl-XARBA annotation
Alternative name(s):
Bcl-2-like protein 1ARBA annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:bcl-xlImported
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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>OrganismiFelis catus (Cat) (Felis silvestris catus)Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 identifieri9685 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCarnivoraFeliformiaFelidaeFelinaeFelis

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei213 – 231HelicalSequence analysisAdd BLAST19

Keywords - Cellular componenti

Cell junction, Cytoplasm, Cytoplasmic vesicleARBA annotation, CytoskeletonARBA annotation, Membrane, MitochondrionARBA annotation, NucleusARBA annotation, SynapseARBA annotation

<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

More...
SMRi
Q8SQ42

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_and_domains_section">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>Domaini5 – 24BH4_2InterPro annotationAdd BLAST20

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni29 – 71DisorderedSequence analysisAdd BLAST43

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi5 – 24BH4PROSITE-ProRule annotationAdd BLAST20

<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 Bcl-2 family.ARBA annotation

Keywords - Domaini

Transmembrane, Transmembrane helixSequence analysisARBA annotation

Phylogenomic databases

Identification of Orthologs from Complete Genome Data

More...
OMAi
RIASWMT

Database of Orthologous Groups

More...
OrthoDBi
1218929at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd06845, Bcl-2_like, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
1.10.437.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR013279, Apop_reg_BclX
IPR036834, Bcl-2-like_sf
IPR026298, Bcl-2_fam
IPR002475, Bcl2-like
IPR004725, Bcl2/BclX
IPR020717, Bcl2_BH1_motif_CS
IPR020726, Bcl2_BH2_motif_CS
IPR020728, Bcl2_BH3_motif_CS
IPR003093, Bcl2_BH4
IPR020731, Bcl2_BH4_motif_CS

The PANTHER Classification System

More...
PANTHERi
PTHR11256, PTHR11256, 1 hit
PTHR11256:SF12, PTHR11256:SF12, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00452, Bcl-2, 1 hit
PF02180, BH4, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR01864, APOPREGBCLX
PR01862, BCL2FAMILY

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00337, BCL, 1 hit
SM00265, BH4, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF56854, SSF56854, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR00865, bcl-2, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50062, BCL2_FAMILY, 1 hit
PS01080, BH1, 1 hit
PS01258, BH2, 1 hit
PS01259, BH3, 1 hit
PS01260, BH4_1, 1 hit
PS50063, BH4_2, 1 hit

<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_length">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

Q8SQ42-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSQSNRELVV DFLSYKLSQK GYSWSRFSDV EENRTEAPEG TESEMETPSA
60 70 80 90 100
INGNPSWHLA DSPAVNGATG HSSSLDAREV IPMAAVKQAL REAGDEFELR
110 120 130 140 150
YRRAFSDLTS QLHITPGTAY QSFEQVVNEL FRDGVNWGRI VAFFSFGGAL
160 170 180 190 200
CVESVDKEMQ VLVSRIAAWM ATYLNDHLEP WIQENGGWDT FVELYGNNAA
210 220 230
AESRKGQERS NRWFLTGMTV AGVVLLGSLF SRK
Length:233
Mass (Da):26,017
Last modified:June 1, 2002 - 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:iCD17F24FE9D47BC9
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AB080951 mRNA Translation: BAB85856.2

NCBI Reference Sequences

More...
RefSeqi
NP_001009228.1, NM_001009228.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
493701

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
fca:493701

<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
AB080951 mRNA Translation: BAB85856.2
RefSeqiNP_001009228.1, NM_001009228.1

3D structure databases

SMRiQ8SQ42
ModBaseiSearch...

Genome annotation databases

GeneIDi493701
KEGGifca:493701

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
598

Phylogenomic databases

OMAiRIASWMT
OrthoDBi1218929at2759

Family and domain databases

CDDicd06845, Bcl-2_like, 1 hit
Gene3Di1.10.437.10, 1 hit
InterProiView protein in InterPro
IPR013279, Apop_reg_BclX
IPR036834, Bcl-2-like_sf
IPR026298, Bcl-2_fam
IPR002475, Bcl2-like
IPR004725, Bcl2/BclX
IPR020717, Bcl2_BH1_motif_CS
IPR020726, Bcl2_BH2_motif_CS
IPR020728, Bcl2_BH3_motif_CS
IPR003093, Bcl2_BH4
IPR020731, Bcl2_BH4_motif_CS
PANTHERiPTHR11256, PTHR11256, 1 hit
PTHR11256:SF12, PTHR11256:SF12, 1 hit
PfamiView protein in Pfam
PF00452, Bcl-2, 1 hit
PF02180, BH4, 1 hit
PRINTSiPR01864, APOPREGBCLX
PR01862, BCL2FAMILY
SMARTiView protein in SMART
SM00337, BCL, 1 hit
SM00265, BH4, 1 hit
SUPFAMiSSF56854, SSF56854, 1 hit
TIGRFAMsiTIGR00865, bcl-2, 1 hit
PROSITEiView protein in PROSITE
PS50062, BCL2_FAMILY, 1 hit
PS01080, BH1, 1 hit
PS01258, BH2, 1 hit
PS01259, BH3, 1 hit
PS01260, BH4_1, 1 hit
PS50063, BH4_2, 1 hit

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 nameiQ8SQ42_FELCA
<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: Q8SQ42
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/TrEMBL: June 1, 2002
Last sequence update: June 1, 2002
Last modified: September 29, 2021
This is version 75 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 statusiUnreviewed (UniProtKB/TrEMBL)
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