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UniProtKB - Q91WP0 (MASP2_MOUSE)

Entry version 158 (07 Apr 2021)
Sequence version 1 (01 Dec 2001)
Previous versions | rss
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Protein

Mannan-binding lectin serine protease 2

Gene

Masp2

Organism
Mus musculus (Mouse)
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

Serum protease that plays an important role in the activation of the complement system via mannose-binding lectin. After activation by auto-catalytic cleavage it cleaves C2 and C4, leading to their activation and to the formation of C3 convertase (By similarity).By similarity

Miscellaneous

Dimerization and MBL2 binding requires calcium ions.By similarity

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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

  • Selective cleavage after Arg-223 in complement component C2 (-Ser-Leu-Gly-Arg-|-Lys-Ile-Gln-Ile) and after Arg-76 in complement component C4 (-Gly-Leu-Gln-Arg-|-Ala-Leu-Glu-Ile). EC:3.4.21.104

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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 bindingi67Calcium 1By similarity1
Metal bindingi75Calcium 1By similarity1
Metal bindingi120Calcium 1By similarity1
Metal bindingi122Calcium 1; via carbonyl oxygenBy similarity1
Metal bindingi123Calcium 1By similarity1
Metal bindingi138Calcium 2By similarity1
Metal bindingi141Calcium 2By similarity1
Metal bindingi158Calcium 2By similarity1
Metal bindingi162Calcium 2; via carbonyl oxygenBy similarity1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">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 sitei483Charge relay systemBy similarity1
Active sitei532Charge relay systemBy similarity1
Active sitei632Charge relay systemBy 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

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<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 functionHydrolase, Protease, Serine protease
Biological processComplement pathway, Immunity, Innate immunity
LigandCalcium, Metal-binding

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...BRENDAi		3.4.21.104, 3474

Reactome - a knowledgebase of biological pathways and processes

More...Reactomei		R-MMU-166662, Lectin pathway of complement activation
R-MMU-166663, Initial triggering of complement
R-MMU-2855086, Ficolins bind to repetitive carbohydrate structures on the target cell surface

Protein family/group databases

MEROPS protease database

More...MEROPSi		S01.229

<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:
Mannan-binding lectin serine protease 2 (EC:3.4.21.104)
Alternative name(s):
MBL-associated serine protease 2
Mannose-binding protein-associated serine protease 2
Short name:
MASP-2
Cleaved into the following 2 chains:
Mannan-binding lectin serine protease 2 A chain
Mannan-binding lectin serine protease 2 B chain
<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:Masp2
<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>OrganismiMus musculus (Mouse)
<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 identifieri10090 [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 lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Mus › Mus
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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
  • UP000000589 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">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 4

Organism-specific databases

Mouse genome database (MGD) from Mouse Genome Informatics (MGI)

More...MGIi		MGI:1330832, Masp2

<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

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 – 19By similarityAdd BLAST19
<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_000002760120 – 685Mannan-binding lectin serine protease 2Add BLAST666
ChainiPRO_000002760220 – 443Mannan-binding lectin serine protease 2 A chainAdd BLAST424
ChainiPRO_0000027603444 – 685Mannan-binding lectin serine protease 2 B chainAdd BLAST242

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 bondi72 ↔ 90By similarity
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm%5Fprocessing%5Fsection">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>Glycosylationi103N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi142 ↔ 156By similarity
Disulfide bondi152 ↔ 165By similarity
<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 residuei158(3R)-3-hydroxyasparagineSequence analysis1
Disulfide bondi167 ↔ 180By similarity
Disulfide bondi184 ↔ 211By similarity
Disulfide bondi241 ↔ 259By similarity
Glycosylationi285N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi300 ↔ 348By similarity
Glycosylationi308N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi328 ↔ 361By similarity
Disulfide bondi366 ↔ 411By similarity
Disulfide bondi396 ↔ 429By similarity
Disulfide bondi433 ↔ 552Interchain (between A and B chains)PROSITE-ProRule annotation
Glycosylationi545N-linked (GlcNAc...) asparagineSequence analysis1
Disulfide bondi598 ↔ 617By similarity
Disulfide bondi628 ↔ 659By similarity
Glycosylationi641N-linked (GlcNAc...) asparagine1 Publication1

<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

The iron and 2-oxoglutarate dependent 3-hydroxylation of aspartate and asparagine is (R) stereospecific within EGF domains.By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<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>Sitei443 – 444CleavageBy similarity2

Keywords - PTMi

Autocatalytic cleavage, Disulfide bond, Glycoprotein, Hydroxylation

Proteomic databases

The CPTAC Assay portal

More...CPTACi		non-CPTAC-3430
non-CPTAC-3722

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

More...PaxDbi		Q91WP0

PeptideAtlas

More...PeptideAtlasi		Q91WP0

PRoteomics IDEntifications database

More...PRIDEi		Q91WP0

ProteomicsDB: a multi-organism proteome resource

More...ProteomicsDBi		252736 [Q91WP0-1]
252737 [Q91WP0-2]

PTM databases

GlyGen: Computational and Informatics Resources for Glycoscience

More...GlyGeni		Q91WP0, 5 sites

iPTMnet integrated resource for PTMs in systems biology context

More...iPTMneti		Q91WP0

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

More...PhosphoSitePlusi		Q91WP0

<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

Bgee dataBase for Gene Expression Evolution

More...Bgeei		ENSMUSG00000028979, Expressed in liver and 108 other tissues

Genevisible search portal to normalized and curated expression data from Genevestigator

More...Genevisiblei		Q91WP0, MM

<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

Homodimer; disulfide-linked. Binds MBL2. Isoform 2 binds to MASP1. Binds SERPING1 (By similarity).

By similarity

GO - Molecular functioni

Complete GO annotation on QuickGO ...

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		201317, 1 interactor

STRING: functional protein association networks

More...STRINGi		10090.ENSMUSP00000049729

Miscellaneous databases

RNAct, Protein-RNA interaction predictions for model organisms.

More...RNActi		Q91WP0, protein

<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		Q91WP0

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>Domaini20 – 137CUB 1PROSITE-ProRule annotationAdd BLAST118
Domaini138 – 181EGF-like; calcium-bindingAdd BLAST44
Domaini184 – 296CUB 2PROSITE-ProRule annotationAdd BLAST113
Domaini298 – 363Sushi 1PROSITE-ProRule annotationAdd BLAST66
Domaini364 – 431Sushi 2PROSITE-ProRule annotationAdd BLAST68
Domaini444 – 683Peptidase S1PROSITE-ProRule annotationAdd BLAST240

<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 peptidase S1 family.PROSITE-ProRule annotation

Keywords - Domaini

EGF-like domain, Repeat, Signal, Sushi

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG3627, Eukaryota

Ensembl GeneTree

More...GeneTreei		ENSGT00950000183084

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...HOGENOMi		CLU_103588_3_0_1

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		Q91WP0

Identification of Orthologs from Complete Genome Data

More...OMAi		QWPKPVF

Database of Orthologous Groups

More...OrthoDBi		156878at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		Q91WP0

TreeFam database of animal gene trees

More...TreeFami		TF330373

Family and domain databases

Conserved Domains Database

More...CDDi		cd00033, CCP, 2 hits
cd00041, CUB, 2 hits
cd00190, Tryp_SPc, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		2.40.10.10, 2 hits
2.60.120.290, 2 hits

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR000859, CUB_dom
IPR001881, EGF-like_Ca-bd_dom
IPR000742, EGF-like_dom
IPR000152, EGF-type_Asp/Asn_hydroxyl_site
IPR018097, EGF_Ca-bd_CS
IPR037571, MASP2
IPR009003, Peptidase_S1_PA
IPR043504, Peptidase_S1_PA_chymotrypsin
IPR001314, Peptidase_S1A
IPR035914, Sperma_CUB_dom_sf
IPR035976, Sushi/SCR/CCP_sf
IPR000436, Sushi_SCR_CCP_dom
IPR001254, Trypsin_dom
IPR033116, TRYPSIN_SER

The PANTHER Classification System

More...PANTHERi		PTHR24255:SF10, PTHR24255:SF10, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00431, CUB, 2 hits
PF07645, EGF_CA, 1 hit
PF00084, Sushi, 2 hits
PF00089, Trypsin, 1 hit

Protein Motif fingerprint database; a protein domain database

More...PRINTSi		PR00722, CHYMOTRYPSIN

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00032, CCP, 2 hits
SM00042, CUB, 2 hits
SM00181, EGF, 1 hit
SM00179, EGF_CA, 1 hit
SM00020, Tryp_SPc, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF49854, SSF49854, 2 hits
SSF50494, SSF50494, 1 hit
SSF57535, SSF57535, 2 hits

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS00010, ASX_HYDROXYL, 1 hit
PS01180, CUB, 2 hits
PS01186, EGF_2, 1 hit
PS01187, EGF_CA, 1 hit
PS50923, SUSHI, 2 hits
PS50240, TRYPSIN_DOM, 1 hit
PS00135, TRYPSIN_SER, 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%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>Sequences (2)i

<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.

<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 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. This section is only present in reviewed entries, i.e. in UniProtKB/Swiss-Prot.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket
Isoform 1 (identifier: Q91WP0-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali 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
MRLLIFLGLL WSLVATLLGS KWPEPVFGRL VSPGFPEKYA DHQDRSWTLT 
        60         70         80         90        100
APPGYRLRLY FTHFDLELSY RCEYDFVKLS SGTKVLATLC GQESTDTEQA 
       110        120        130        140        150
PGNDTFYSLG PSLKVTFHSD YSNEKPFTGF EAFYAAEDVD ECRVSLGDSV 
       160        170        180        190        200
PCDHYCHNYL GGYYCSCRAG YVLHQNKHTC SALCSGQVFT GRSGYLSSPE 
       210        220        230        240        250
YPQPYPKLSS CTYSIRLEDG FSVILDFVES FDVETHPEAQ CPYDSLKIQT 
       260        270        280        290        300
DKGEHGPFCG KTLPPRIETD SHKVTITFAT DESGNHTGWK IHYTSTARPC 
       310        320        330        340        350
PDPTAPPNGS ISPVQAIYVL KDRFSVFCKT GFELLQGSVP LKSFTAVCQK 
       360        370        380        390        400
DGSWDRPMPE CSIIDCGPPD DLPNGHVDYI TGPEVTTYKA VIQYSCEETF 
       410        420        430        440        450
YTMSSNGKYV CEADGFWTSS KGEKLPPVCE PVCGLSTHTI GGRIVGGQPA 
       460        470        480        490        500
KPGDFPWQVL LLGQTTAAAG ALIHDNWVLT AAHAVYEKRM AASSLNIRMG 
       510        520        530        540        550
ILKRLSPHYT QAWPEEIFIH EGYTHGAGFD NDIALIKLKN KVTINGSIMP 
       560        570        580        590        600
VCLPRKEAAS LMRTDFTGTV AGWGLTQKGL LARNLMFVDI PIADHQKCTA 
       610        620        630        640        650
VYEKLYPGVR VSANMLCAGL ETGGKDSCRG DSGGALVFLD NETQRWFVGG 
       660        670        680 
IVSWGSINCG AADQYGVYTK VINYIPWIEN IISNF
Length:685
Mass (Da):75,517
Last modified:December 1, 2001 - 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:iF56A6D522BC7099D
GO
Isoform 2 (identifier: Q91WP0-2) [UniParc]FASTAAdd to basket
Also known as: MAp19

The sequence of this isoform differs from the canonical sequence as follows:
     182-185: ALCS → EQSL
     186-685: Missing.

Show »
Length:185
Mass (Da):20,974
Checksum:i72E01900D30A18B9
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 conflicti1 – 2MR → MSLPCPQ (PubMed:10586086).Curated2
Sequence conflicti172V → I in BAA34674 (PubMed:9794427).Curated1
Sequence conflicti172V → I in CAB65247 (PubMed:10586086).Curated1
Sequence conflicti192R → K in CAB65250 (PubMed:10586086).Curated1
Sequence conflicti317I → T in BAA34674 (PubMed:9794427).Curated1
Sequence conflicti325S → Y in CAB65250 (PubMed:10586086).Curated1
Sequence conflicti384E → Q in BAA34674 (PubMed:9794427).Curated1
Sequence conflicti600A → T in BAA34674 (PubMed:9794427).Curated1
Sequence conflicti663D → G in BAA34674 (PubMed:9794427).Curated1
Sequence conflicti678I → N in BAA34674 (PubMed:9794427).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_014636182 – 185ALCS → EQSL in isoform 2. 1 Publication4
Alternative sequenceiVSP_014637186 – 685Missing in isoform 2. 1 PublicationAdd BLAST500

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
AB009459 mRNA Translation: BAA34674.1
AJ250369 mRNA Translation: CAB63701.1
Y19160 mRNA Translation: CAB65247.1
Y19163 mRNA Translation: CAB65250.1
AK050052 mRNA Translation: BAC34052.1
AL606969 Genomic DNA No translation available.
BC013893 mRNA Translation: AAH13893.1

The Consensus CDS (CCDS) project

More...CCDSi		CCDS18941.1 [Q91WP0-1]
CCDS18942.1 [Q91WP0-2]

NCBI Reference Sequences

More...RefSeqi		NP_001003893.1, NM_001003893.2 [Q91WP0-1]
NP_034897.1, NM_010767.3 [Q91WP0-2]

Genome annotation databases

Ensembl eukaryotic genome annotation project

More...Ensembli		ENSMUST00000052060; ENSMUSP00000049729; ENSMUSG00000028979 [Q91WP0-1]
ENSMUST00000105701; ENSMUSP00000101326; ENSMUSG00000028979 [Q91WP0-2]

Database of genes from NCBI RefSeq genomes

More...GeneIDi		17175

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		mmu:17175

UCSC genome browser

More...UCSCi		uc008vux.1, mouse [Q91WP0-2]
uc008vuy.1, mouse [Q91WP0-1]

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
AB009459 mRNA Translation: BAA34674.1
AJ250369 mRNA Translation: CAB63701.1
Y19160 mRNA Translation: CAB65247.1
Y19163 mRNA Translation: CAB65250.1
AK050052 mRNA Translation: BAC34052.1
AL606969 Genomic DNA No translation available.
BC013893 mRNA Translation: AAH13893.1
CCDSiCCDS18941.1 [Q91WP0-1]
CCDS18942.1 [Q91WP0-2]
RefSeqiNP_001003893.1, NM_001003893.2 [Q91WP0-1]
NP_034897.1, NM_010767.3 [Q91WP0-2]

3D structure databases

SMRiQ91WP0
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi201317, 1 interactor
STRINGi10090.ENSMUSP00000049729

Protein family/group databases

MEROPSiS01.229

PTM databases

GlyGeniQ91WP0, 5 sites
iPTMnetiQ91WP0
PhosphoSitePlusiQ91WP0

Proteomic databases

CPTACinon-CPTAC-3430
non-CPTAC-3722
PaxDbiQ91WP0
PeptideAtlasiQ91WP0
PRIDEiQ91WP0
ProteomicsDBi252736 [Q91WP0-1]
252737 [Q91WP0-2]

Protocols and materials databases

Antibodypedia a portal for validated antibodies

More...Antibodypediai		27998, 351 antibodies

Genome annotation databases

EnsembliENSMUST00000052060; ENSMUSP00000049729; ENSMUSG00000028979 [Q91WP0-1]
ENSMUST00000105701; ENSMUSP00000101326; ENSMUSG00000028979 [Q91WP0-2]
GeneIDi17175
KEGGimmu:17175
UCSCiuc008vux.1, mouse [Q91WP0-2]
uc008vuy.1, mouse [Q91WP0-1]

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		10747
MGIiMGI:1330832, Masp2

Phylogenomic databases

eggNOGiKOG3627, Eukaryota
GeneTreeiENSGT00950000183084
HOGENOMiCLU_103588_3_0_1
InParanoidiQ91WP0
OMAiQWPKPVF
OrthoDBi156878at2759
PhylomeDBiQ91WP0
TreeFamiTF330373

Enzyme and pathway databases

BRENDAi3.4.21.104, 3474
ReactomeiR-MMU-166662, Lectin pathway of complement activation
R-MMU-166663, Initial triggering of complement
R-MMU-2855086, Ficolins bind to repetitive carbohydrate structures on the target cell surface

Miscellaneous databases

BioGRID ORCS database of CRISPR phenotype screens

More...BioGRID-ORCSi		17175, 1 hit in 52 CRISPR screens

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...ChiTaRSi		Masp2, mouse

Protein Ontology

More...PROi		PR:Q91WP0
RNActiQ91WP0, protein

The Stanford Online Universal Resource for Clones and ESTs

More...SOURCEi		Search...

Gene expression databases

BgeeiENSMUSG00000028979, Expressed in liver and 108 other tissues
GenevisibleiQ91WP0, MM

Family and domain databases

CDDicd00033, CCP, 2 hits
cd00041, CUB, 2 hits
cd00190, Tryp_SPc, 1 hit
Gene3Di2.40.10.10, 2 hits
2.60.120.290, 2 hits
InterProiView protein in InterPro
IPR000859, CUB_dom
IPR001881, EGF-like_Ca-bd_dom
IPR000742, EGF-like_dom
IPR000152, EGF-type_Asp/Asn_hydroxyl_site
IPR018097, EGF_Ca-bd_CS
IPR037571, MASP2
IPR009003, Peptidase_S1_PA
IPR043504, Peptidase_S1_PA_chymotrypsin
IPR001314, Peptidase_S1A
IPR035914, Sperma_CUB_dom_sf
IPR035976, Sushi/SCR/CCP_sf
IPR000436, Sushi_SCR_CCP_dom
IPR001254, Trypsin_dom
IPR033116, TRYPSIN_SER
PANTHERiPTHR24255:SF10, PTHR24255:SF10, 1 hit
PfamiView protein in Pfam
PF00431, CUB, 2 hits
PF07645, EGF_CA, 1 hit
PF00084, Sushi, 2 hits
PF00089, Trypsin, 1 hit
PRINTSiPR00722, CHYMOTRYPSIN
SMARTiView protein in SMART
SM00032, CCP, 2 hits
SM00042, CUB, 2 hits
SM00181, EGF, 1 hit
SM00179, EGF_CA, 1 hit
SM00020, Tryp_SPc, 1 hit
SUPFAMiSSF49854, SSF49854, 2 hits
SSF50494, SSF50494, 1 hit
SSF57535, SSF57535, 2 hits
PROSITEiView protein in PROSITE
PS00010, ASX_HYDROXYL, 1 hit
PS01180, CUB, 2 hits
PS01186, EGF_2, 1 hit
PS01187, EGF_CA, 1 hit
PS50923, SUSHI, 2 hits
PS50240, TRYPSIN_DOM, 1 hit
PS00135, TRYPSIN_SER, 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 nameiMASP2_MOUSE
<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: Q91WP0
Secondary accession number(s): B1ARY2
, B1ARY3, Q9QXA4, Q9QXD2, Q9QXD5, Q9Z338
<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 19, 2005
Last sequence update: December 1, 2001
Last modified: April 7, 2021
This is version 158 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

Reference proteome

Documents

  1. Peptidase families
    Classification of peptidase families and list of entries
  2. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  3. SIMILARITY comments
    Index of protein domains and families
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