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Entry version 152 (08 May 2019)
Sequence version 3 (01 Nov 1997)
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Protein

Cytoplasmic alpha-amylase

Gene

amyA

Organism
Escherichia coli (strain K12)
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>
-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

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

  • Endohydrolysis of (1->4)-alpha-D-glucosidic linkages in polysaccharides containing three or more (1->4)-alpha-linked D-glucose units.1 Publication EC:3.2.1.1

<p>This subsection of the ‘Function’ section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

Ca2+By similarityNote: Binds 1 Ca2+ ion per subunit.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 bindingi104CalciumBy similarity1
Metal bindingi198CalciumBy similarity1
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei235NucleophileBy similarity1
Metal bindingi239Calcium; via carbonyl oxygenBy similarity1
Active sitei265Proton donorBy similarity1
<p>This subsection describes interesting single amino acid sites on the sequence that are not defined in any other subsection. This subsection can be displayed in different sections (‘Function’, ‘PTM / Processing’, ‘Pathology and Biotech’) according to its content.<p><a href='/help/site' target='_top'>More...</a></p>Sitei332Transition state stabilizerBy 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 functionGlycosidase, Hydrolase
Biological processCarbohydrate metabolism
LigandCalcium, Metal-binding, Sodium

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
EcoCyc:ALPHA-AMYL-CYTO-MONOMER
ECOL316407:JW1912-MONOMER
MetaCyc:ALPHA-AMYL-CYTO-MONOMER

Protein family/group databases

Carbohydrate-Active enZymes

More...
CAZyi
GH13 Glycoside Hydrolase Family 13

<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:
Cytoplasmic alpha-amylase (EC:3.2.1.11 Publication)
Alternative name(s):
1,4-alpha-D-glucan glucanohydrolase
<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:amyA
Synonyms:yedC
Ordered Locus Names:b1927, JW1912
<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>OrganismiEscherichia coli (strain K12)
<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 identifieri83333 [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 lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
<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
  • UP000000318 <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
  • UP000000625 Componenti: Chromosome

Organism-specific databases

Escherichia coli strain K12 genome database

More...
EcoGenei
EG11387 amyA

<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

Cytoplasm

<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.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00000542871 – 495Cytoplasmic alpha-amylaseAdd BLAST495

Proteomic databases

jPOST - Japan Proteome Standard Repository/Database

More...
jPOSTi
P26612

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

More...
PaxDbi
P26612

PRoteomics IDEntifications database

More...
PRIDEi
P26612

<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

Monomer.

By similarity

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...
BioGridi
4260380, 11 interactors

Database of interacting proteins

More...
DIPi
DIP-9108N

Protein interaction database and analysis system

More...
IntActi
P26612, 4 interactors

STRING: functional protein association networks

More...
STRINGi
511145.b1927

<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
P26612

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

<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 glycosyl hydrolase 13 family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105E5K Bacteria
COG0366 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000094847

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P26612

KEGG Orthology (KO)

More...
KOi
K01176

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P26612

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.60.40.1180, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR006048 A-amylase/branching_C
IPR013776 A-amylase_thermo
IPR006047 Glyco_hydro_13_cat_dom
IPR013780 Glyco_hydro_b
IPR017853 Glycoside_hydrolase_SF

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00128 Alpha-amylase, 1 hit
PF02806 Alpha-amylase_C, 1 hit

PIRSF; a whole-protein classification database

More...
PIRSFi
PIRSF001021 Alph-amls_thrmst, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00642 Aamy, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF51445 SSF51445, 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.

P26612-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MRNPTLLQCF HWYYPEGGKL WPELAERADG FNDIGINMVW LPPAYKGASG
60 70 80 90 100
GYSVGYDSYD LFDLGEFDQK GSIPTKYGDK AQLLAAIDAL KRNDIAVLLD
110 120 130 140 150
VVVNHKMGAD EKEAIRVQRV NADDRTQIDE EIIECEGWTR YTFPARAGQY
160 170 180 190 200
SQFIWDFKCF SGIDHIENPD EDGIFKIVND YTGEGWNDQV DDELGNFDYL
210 220 230 240 250
MGENIDFRNH AVTEEIKYWA RWVMEQTQCD GFRLDAVKHI PAWFYKEWIE
260 270 280 290 300
HVQEVAPKPL FIVAEYWSHE VDKLQTYIDQ VEGKTMLFDA PLQMKFHEAS
310 320 330 340 350
RMGRDYDMTQ IFTGTLVEAD PFHAVTLVAN HDTQPLQALE APVEPWFKPL
360 370 380 390 400
AYALILLREN GVPSVFYPDL YGAHYEDVGG DGQTYPIDMP IIEQLDELIL
410 420 430 440 450
ARQRFAHGVQ TLFFDHPNCI AFSRSGTDEF PGCVVVMSNG DDGEKTIHLG
460 470 480 490
ENYGNKTWRD FLGNRQERVV TDENGEATFF CNGGSVSVWV IEEVI
Length:495
Mass (Da):56,639
Last modified:November 1, 1997 - v3
<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:i26AFF6797DDA54D6
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 conflicti19 – 20KL → SS in AAA23810 (PubMed:1400215).Curated2
Sequence conflicti109A → V in AAA23810 (PubMed:1400215).Curated1
Sequence conflicti149Q → E in AAA23810 (PubMed:1400215).Curated1
Sequence conflicti234L → I in AAA23810 (PubMed:1400215).Curated1

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
L01642 Genomic DNA Translation: AAA23810.1
U00096 Genomic DNA Translation: AAC74994.1
AP009048 Genomic DNA Translation: BAA15755.1
M85240 Genomic DNA No translation available.
L13279 Genomic DNA Translation: AAA82575.1

Protein sequence database of the Protein Information Resource

More...
PIRi
D64956 A45738

NCBI Reference Sequences

More...
RefSeqi
NP_416437.1, NC_000913.3
WP_001245695.1, NZ_LN832404.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC74994; AAC74994; b1927
BAA15755; BAA15755; BAA15755

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
946434

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecj:JW1912
eco:b1927

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|1411691.4.peg.322

<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
L01642 Genomic DNA Translation: AAA23810.1
U00096 Genomic DNA Translation: AAC74994.1
AP009048 Genomic DNA Translation: BAA15755.1
M85240 Genomic DNA No translation available.
L13279 Genomic DNA Translation: AAA82575.1
PIRiD64956 A45738
RefSeqiNP_416437.1, NC_000913.3
WP_001245695.1, NZ_LN832404.1

3D structure databases

SMRiP26612
ModBaseiSearch...

Protein-protein interaction databases

BioGridi4260380, 11 interactors
DIPiDIP-9108N
IntActiP26612, 4 interactors
STRINGi511145.b1927

Protein family/group databases

CAZyiGH13 Glycoside Hydrolase Family 13

Proteomic databases

jPOSTiP26612
PaxDbiP26612
PRIDEiP26612

Genome annotation databases

EnsemblBacteriaiAAC74994; AAC74994; b1927
BAA15755; BAA15755; BAA15755
GeneIDi946434
KEGGiecj:JW1912
eco:b1927
PATRICifig|1411691.4.peg.322

Organism-specific databases

EchoBASE - an integrated post-genomic database for E. coli

More...
EchoBASEi
EB1360
EcoGeneiEG11387 amyA

Phylogenomic databases

eggNOGiENOG4105E5K Bacteria
COG0366 LUCA
HOGENOMiHOG000094847
InParanoidiP26612
KOiK01176
PhylomeDBiP26612

Enzyme and pathway databases

BioCyciEcoCyc:ALPHA-AMYL-CYTO-MONOMER
ECOL316407:JW1912-MONOMER
MetaCyc:ALPHA-AMYL-CYTO-MONOMER

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P26612

Family and domain databases

Gene3Di2.60.40.1180, 1 hit
InterProiView protein in InterPro
IPR006048 A-amylase/branching_C
IPR013776 A-amylase_thermo
IPR006047 Glyco_hydro_13_cat_dom
IPR013780 Glyco_hydro_b
IPR017853 Glycoside_hydrolase_SF
PfamiView protein in Pfam
PF00128 Alpha-amylase, 1 hit
PF02806 Alpha-amylase_C, 1 hit
PIRSFiPIRSF001021 Alph-amls_thrmst, 1 hit
SMARTiView protein in SMART
SM00642 Aamy, 1 hit
SUPFAMiSSF51445 SSF51445, 1 hit

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 nameiAMY2_ECOLI
<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: P26612
Secondary accession number(s): P78072
<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: August 1, 1992
Last sequence update: November 1, 1997
Last modified: May 8, 2019
This is version 152 of the entry and version 3 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

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Glycosyl hydrolases
    Classification of glycosyl hydrolase families and list of entries
  3. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
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