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Entry version 91 (05 Jun 2019)
Sequence version 1 (01 Feb 1996)
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Protein

Alpha-fetoprotein

Gene

AFP

Organism
Equus caballus (Horse)
Status
Reviewed-Annotation score:

Annotation score:4 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

Binds copper, nickel, and fatty acids as well as, and bilirubin less well than, serum albumin.By similarity

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 bindingi22Copper or nickelBy 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

LigandCopper, Metal-binding, Nickel

<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:
Alpha-fetoprotein
Alternative name(s):
Alpha-1-fetoprotein
Alpha-fetoglobulin
<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:AFP
<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>OrganismiEquus caballus (Horse)
<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 identifieri9796 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaPerissodactylaEquidaeEquus
<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
  • UP000002281 <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 3

Organism-specific databases

Vertebrate Gene Nomenclature Database

More...
VGNCi
VGNC:51133 AFP

<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

Keywords - Cellular componenti

Secreted

<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 denotes the presence of an N-terminal signal peptide.<p><a href='/help/signal' target='_top'>More...</a></p>Signal peptidei1 – 18By similarityAdd BLAST18
<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_000000109619 – 609Alpha-fetoproteinAdd BLAST591

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi99 ↔ 114PROSITE-ProRule annotation
<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 residuei111PhosphoserineBy similarity1
Disulfide bondi113 ↔ 124PROSITE-ProRule annotation
Modified residuei115PhosphoserineBy similarity1
Disulfide bondi148 ↔ 193PROSITE-ProRule annotation
Disulfide bondi192 ↔ 201PROSITE-ProRule annotation
Disulfide bondi224 ↔ 270PROSITE-ProRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi251N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi269 ↔ 277PROSITE-ProRule annotation
Disulfide bondi289 ↔ 303PROSITE-ProRule annotation
Disulfide bondi302 ↔ 313PROSITE-ProRule annotation
Modified residuei344PhosphoserineBy similarity1
Disulfide bondi384 ↔ 393PROSITE-ProRule annotation
Disulfide bondi416 ↔ 462PROSITE-ProRule annotation
Disulfide bondi461 ↔ 472PROSITE-ProRule annotation
Disulfide bondi485 ↔ 501PROSITE-ProRule annotation
Disulfide bondi500 ↔ 511PROSITE-ProRule annotation
Disulfide bondi538 ↔ 583PROSITE-ProRule annotation
Disulfide bondi582 ↔ 591PROSITE-ProRule annotation

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">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

Sulfated.By similarity

Keywords - PTMi

Disulfide bond, Glycoprotein, Phosphoprotein, Sulfation

Proteomic databases

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

More...
PaxDbi
P49066

PRoteomics IDEntifications database

More...
PRIDEi
P49066

<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

<p>This subsection of the ‘Expression’ section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified ‘at protein level’. <br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Plasma.

Gene expression databases

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
P49066 baseline

<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_section">'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_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Dimeric and trimeric forms have been found in addition to the monomeric form.

By similarity

<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
P49066

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>Domaini19 – 210Albumin 1PROSITE-ProRule annotationAdd BLAST192
Domaini211 – 402Albumin 2PROSITE-ProRule annotationAdd BLAST192
Domaini403 – 601Albumin 3PROSITE-ProRule annotationAdd BLAST199

<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 ALB/AFP/VDB family.PROSITE-ProRule annotation

Keywords - Domaini

Repeat, Signal

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG410IIRZ Eukaryota
ENOG410Z40H LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00390000000113

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000293137

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P49066

KEGG Orthology (KO)

More...
KOi
K16144

Database of Orthologous Groups

More...
OrthoDBi
906547at2759

Family and domain databases

Conserved Domains Database

More...
CDDi
cd00015 ALBUMIN, 3 hits

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR000264 ALB/AFP/VDB
IPR020858 Serum_albumin-like
IPR021177 Serum_albumin/AFP/Afamin
IPR020857 Serum_albumin_CS
IPR014760 Serum_albumin_N

The PANTHER Classification System

More...
PANTHERi
PTHR11385 PTHR11385, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00273 Serum_albumin, 3 hits

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF002520 Serum_albumin_subgroup, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00803 AFETOPROTEIN
PR00802 SERUMALBUMIN

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00103 ALBUMIN, 3 hits

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF48552 SSF48552, 3 hits

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00212 ALBUMIN_1, 2 hits
PS51438 ALBUMIN_2, 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_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>Sequence (1+)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 has 1 described isoform and 1 potential isoform that is computationally mapped.Show allAlign All

P49066-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKWVVSILLI FLLNSTESRT MHSNAYGIAS ALDSFQCSPE MNLVDLATIF
60 70 80 90 100
FAQFVQEATY KEVSKMVKDV LTVTEKSTGS EQPTGCSENR LSAFLEEICH
110 120 130 140 150
EEEIPEKYGL SGCCSQNEEE RHNCLLARKK DSPASIPPFQ VPEPVTSCKA
160 170 180 190 200
YEENREMFLN RYLYEIARRH PFLYSSTALY LASHYDKIIS ACCKSENAVE
210 220 230 240 250
CFQSKAATIT KELRETSLLN QHVCAVIRNF GPRTLQAITV TTLSQRYSKA
260 270 280 290 300
NFTEIQKLVL DVAHAHEECC RGNVEECVQD GEKLISYVCS QEDILSSSIV
310 320 330 340 350
ECCKLPTVEL AQCIIHAEND DKPEGLSPNL NRLLGERDFN QFSSKEKDLF
360 370 380 390 400
MARFTYEYSR RHTKLAVPVI LRVAKGYQEF LEKCSQSENP LECQDKGEEE
410 420 430 440 450
LQKYIQEGQA LAKRSCGLFQ KLGDYYLQNA FLVAYTKKAP QLTPPELIAL
460 470 480 490 500
TRKMATAAAT CCQLSEDKQL ACGEQVAGLI IGQLCIRHEE SPINPGVGQC
510 520 530 540 550
CTSSYANRRP CFSSLVVDET YVPPPFSDDK FIFHKDLCQA QGVALQTMKQ
560 570 580 590 600
QFLINLVKQK PQITEEQLEA VIADFSGLLE KCCQGQGQEV CFSEEGPQLI

SKTRAALGV
Length:609
Mass (Da):68,350
Last modified:February 1, 1996 - 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:i8ED7FD63069CC7A2
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
F6U4X2F6U4X2_HORSE
Alpha-fetoprotein
AFP
614Annotation score:

Annotation score:2 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>

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
U28947 mRNA Translation: AAA69559.1

NCBI Reference Sequences

More...
RefSeqi
NP_001075421.1, NM_001081952.1

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...
Ensembli
ENSECAT00000025232; ENSECAP00000020985; ENSECAG00000023229

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
100034185

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecb:100034185

<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
U28947 mRNA Translation: AAA69559.1
RefSeqiNP_001075421.1, NM_001081952.1

3D structure databases

SMRiP49066
ModBaseiSearch...

Proteomic databases

PaxDbiP49066
PRIDEiP49066

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSECAT00000025232; ENSECAP00000020985; ENSECAG00000023229
GeneIDi100034185
KEGGiecb:100034185

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
174
VGNCiVGNC:51133 AFP

Phylogenomic databases

eggNOGiENOG410IIRZ Eukaryota
ENOG410Z40H LUCA
GeneTreeiENSGT00390000000113
HOGENOMiHOG000293137
InParanoidiP49066
KOiK16144
OrthoDBi906547at2759

Gene expression databases

ExpressionAtlasiP49066 baseline

Family and domain databases

CDDicd00015 ALBUMIN, 3 hits
InterProiView protein in InterPro
IPR000264 ALB/AFP/VDB
IPR020858 Serum_albumin-like
IPR021177 Serum_albumin/AFP/Afamin
IPR020857 Serum_albumin_CS
IPR014760 Serum_albumin_N
PANTHERiPTHR11385 PTHR11385, 1 hit
PfamiView protein in Pfam
PF00273 Serum_albumin, 3 hits
PIRSFiPIRSF002520 Serum_albumin_subgroup, 1 hit
PRINTSiPR00803 AFETOPROTEIN
PR00802 SERUMALBUMIN
SMARTiView protein in SMART
SM00103 ALBUMIN, 3 hits
SUPFAMiSSF48552 SSF48552, 3 hits
PROSITEiView protein in PROSITE
PS00212 ALBUMIN_1, 2 hits
PS51438 ALBUMIN_2, 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 nameiFETA_HORSE
<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: P49066
<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: February 1, 1996
Last sequence update: February 1, 1996
Last modified: June 5, 2019
This is version 91 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 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

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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