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Entry version 171 (08 May 2019)
Sequence version 2 (23 Jan 2007)
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Protein

Cytochrome b5

Gene

Cyb5a

Organism
Rattus norvegicus (Rat)
Status
Reviewed-Annotation score:

Annotation score:5 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 protein 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

Cytochrome b5 is a membrane-bound hemoprotein functioning as an electron carrier for several membrane-bound oxygenases. It is also involved in several steps of the sterol biosynthesis pathway, particularly in the C-6 double bond introduction during the C-6 desaturation.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the ‘Description’ field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi44Iron (heme axial ligand)1
Metal bindingi68Iron (heme axial ligand)1

<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

Biological processElectron transport, Transport
LigandHeme, Iron, Metal-binding

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...
Reactomei
R-RNO-196836 Vitamin C (ascorbate) metabolism
R-RNO-9609523 Insertion of tail-anchored proteins into the endoplasmic reticulum membrane

<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:
Cytochrome b5
<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:Cyb5a
Synonyms:Cyb5
<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>OrganismiRattus norvegicus (Rat)
<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 identifieri10116 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeRattus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000002494 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components. <br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome 18

Organism-specific databases

Rat genome database

More...
RGDi
620558 Cyb5a

<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

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte & Seán O’Donoghue; Source: COMPARTMENTS

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>Transmembranei109 – 131HelicalSequence analysisAdd BLAST23

Keywords - Cellular componenti

Endoplasmic reticulum, Membrane, Microsome

<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 <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemoved2 Publications
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001660142 – 134Cytochrome b5Add BLAST133

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei2N-acetylalanine1 Publication1
Modified residuei7N6-acetyllysineBy similarity1
Modified residuei10N6-acetyllysineBy similarity1
Modified residuei19N6-acetyllysineBy similarity1

Keywords - PTMi

Acetylation

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...
jPOSTi
P00173

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
P00173

PRoteomics IDEntifications database

More...
PRIDEi
P00173

PTM databases

iPTMnet integrated resource for PTMs in systems biology context

More...
iPTMneti
P00173

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...
PhosphoSitePlusi
P00173

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
ENSRNOG00000015205 Expressed in 10 organ(s), highest expression level in liver

Genevisible search portal to normalized and curated expression data from Genevestigator

More...
Genevisiblei
P00173 RN

<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

GO - Molecular functioni

Protein-protein interaction databases

Protein interaction database and analysis system

More...
IntActi
P00173, 1 interactor

STRING: functional protein association networks

More...
STRINGi
10116.ENSRNOP00000020446

<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

Secondary structure

1134
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

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

More...
SMRi
P00173

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P00173

<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>Domaini9 – 85Cytochrome b5 heme-bindingPROSITE-ProRule annotationAdd BLAST77

<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 cytochrome b5 family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG0537 Eukaryota
COG5274 LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00940000156770

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000039853

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P00173

Identification of Orthologs from Complete Genome Data

More...
OMAi
FKSTWII

Database of Orthologous Groups

More...
OrthoDBi
1566561at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P00173

TreeFam database of animal gene trees

More...
TreeFami
TF314537

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.10.120.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001199 Cyt_B5-like_heme/steroid-bd
IPR036400 Cyt_B5-like_heme/steroid_sf
IPR018506 Cyt_B5_heme-BS

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00173 Cyt-b5, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00363 CYTOCHROMEB5

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM01117 Cyt-b5, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF55856 SSF55856, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00191 CYTOCHROME_B5_1, 1 hit
PS50255 CYTOCHROME_B5_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>Sequences (2)i

<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.

<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 in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 2 <p>This subsection of the ‘Sequence’ section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket
Isoform Long (identifier: P00173-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MAEQSDKDVK YYTLEEIQKH KDSKSTWVIL HHKVYDLTKF LEEHPGGEEV
60 70 80 90 100
LREQAGGDAT ENFEDVGHST DARELSKTYI IGELHPDDRS KIAKPSETLI
110 120 130
TTVESNSSWW TNWVIPAISA LVVALMYRLY MAED
Length:134
Mass (Da):15,355
Last modified:January 23, 2007 - v2
<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:i37568069CA88CCD2
GO
Isoform Short (identifier: P00173-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     97-100: ETLI → HSAL
     101-134: Missing.

Show »
Length:100
Mass (Da):11,407
Checksum:i8D8AC05DCA93F37D
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section reports difference(s) between the canonical sequence (displayed by default in the entry) and the different sequence submissions merged in the entry. These various submissions may originate from different sequencing projects, different types of experiments, or different biological samples. Sequence conflicts are usually of unknown origin.<p><a href='/help/conflict' target='_top'>More...</a></p>Sequence conflicti18Q → E AA sequence (PubMed:6840088).Curated1

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Sequence’ section describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting.<p><a href='/help/var_seq' target='_top'>More...</a></p>Alternative sequenceiVSP_00124697 – 100ETLI → HSAL in isoform Short. Curated4
Alternative sequenceiVSP_001247101 – 134Missing in isoform Short. CuratedAdd BLAST34

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
D13205 mRNA Translation: BAA02492.1
AF007107 mRNA Translation: AAB67609.1
AF007108 mRNA Translation: AAB67610.1
BC086945 mRNA Translation: AAH86945.1

Protein sequence database of the Protein Information Resource

More...
PIRi
JC5596
S28404 CBRT5

NCBI Reference Sequences

More...
RefSeqi
NP_071581.1, NM_022245.1 [P00173-1]

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSRNOT00000020446; ENSRNOP00000020446; ENSRNOG00000015205 [P00173-1]

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
64001

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
rno:64001

Keywords - Coding sequence diversityi

Alternative splicing

<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
D13205 mRNA Translation: BAA02492.1
AF007107 mRNA Translation: AAB67609.1
AF007108 mRNA Translation: AAB67610.1
BC086945 mRNA Translation: AAH86945.1
PIRiJC5596
S28404 CBRT5
RefSeqiNP_071581.1, NM_022245.1 [P00173-1]

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1AQANMR-A6-99[»]
1AW3NMR-A6-99[»]
1AXXNMR-A6-99[»]
1B5ANMR-A6-99[»]
1B5BNMR-A6-99[»]
1BFXNMR-A1-99[»]
1BLVNMR-A6-99[»]
1I87NMR-A2-99[»]
1I8CNMR-A2-99[»]
1IB7NMR-A6-99[»]
1IETNMR-A2-99[»]
1IEUNMR-A2-99[»]
1JEXNMR-A6-99[»]
1MNYNMR-A6-99[»]
2AXXNMR-A6-99[»]
5XE4NMR-A2-99[»]
5XEENMR-A2-99[»]
SMRiP00173
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

IntActiP00173, 1 interactor
STRINGi10116.ENSRNOP00000020446

PTM databases

iPTMnetiP00173
PhosphoSitePlusiP00173

Proteomic databases

jPOSTiP00173
PaxDbiP00173
PRIDEiP00173

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSRNOT00000020446; ENSRNOP00000020446; ENSRNOG00000015205 [P00173-1]
GeneIDi64001
KEGGirno:64001

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
1528
RGDi620558 Cyb5a

Phylogenomic databases

eggNOGiKOG0537 Eukaryota
COG5274 LUCA
GeneTreeiENSGT00940000156770
HOGENOMiHOG000039853
InParanoidiP00173
OMAiFKSTWII
OrthoDBi1566561at2759
PhylomeDBiP00173
TreeFamiTF314537

Enzyme and pathway databases

ReactomeiR-RNO-196836 Vitamin C (ascorbate) metabolism
R-RNO-9609523 Insertion of tail-anchored proteins into the endoplasmic reticulum membrane

Miscellaneous databases

EvolutionaryTraceiP00173

Protein Ontology

More...
PROi
PR:P00173

Gene expression databases

BgeeiENSRNOG00000015205 Expressed in 10 organ(s), highest expression level in liver
GenevisibleiP00173 RN

Family and domain databases

Gene3Di3.10.120.10, 1 hit
InterProiView protein in InterPro
IPR001199 Cyt_B5-like_heme/steroid-bd
IPR036400 Cyt_B5-like_heme/steroid_sf
IPR018506 Cyt_B5_heme-BS
PfamiView protein in Pfam
PF00173 Cyt-b5, 1 hit
PRINTSiPR00363 CYTOCHROMEB5
SMARTiView protein in SMART
SM01117 Cyt-b5, 1 hit
SUPFAMiSSF55856 SSF55856, 1 hit
PROSITEiView protein in PROSITE
PS00191 CYTOCHROME_B5_1, 1 hit
PS50255 CYTOCHROME_B5_2, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
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 nameiCYB5_RAT
<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: P00173
Secondary accession number(s): O35768
<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/Swiss-Prot: July 21, 1986
Last sequence update: January 23, 2007
Last modified: May 8, 2019
This is version 171 of the entry and version 2 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 programChordata 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

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
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