ID   MAPE_PINMG              Reviewed;         140 AA.
AC   Q14WA6;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   05-OCT-2010, sequence version 3.
DT   25-MAY-2022, entry version 23.
DE   RecName: Full=Perlin matrix protein;
DE   Flags: Precursor;
OS   Margaritifera margaritifera (Freshwater pearl mussel).
OC   Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Mollusca; Bivalvia;
OC   Autobranchia; Pteriomorphia; Pterioida; Pterioidea; Pteriidae; Pinctada.
OX   NCBI_TaxID=102329;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RA   Montagnani C., Fleury E., Belliard C., Piquemal D., Flaven E.,
RA   Cochennec-Laureau N.;
RT   "Characterization of perline and calcine, two conserved shell matrix genes
RT   implicated in biomineralization processes in the pearl oyster Pinctada
RT   margaritifera.";
RL   Submitted (SEP-2009) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: May be specifically involved in the formation of the nacreous
CC       layer. {ECO:0000250}.
CC   -!- SUBUNIT: Heterooligomer; disulfide-linked. Pif97, Pif80, N16 and other
CC       proteins form a complex (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Secreted, extracellular space, extracellular
CC       matrix {ECO:0000250}.
CC   -!- TISSUE SPECIFICITY: Component of conchiolin, the organic matrix of
CC       nacre. Only expressed in the dorsal region of the mantle.
CC   -!- SIMILARITY: Belongs to the N16 matrix protein family. {ECO:0000305}.
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DR   EMBL; DQ665305; ABG24165.3; -; mRNA.
DR   AlphaFoldDB; Q14WA6; -.
DR   GO; GO:0005576; C:extracellular region; IEA:UniProtKB-KW.
PE   2: Evidence at transcript level;
KW   Disulfide bond; Extracellular matrix; Secreted; Signal.
FT   SIGNAL          1..26
FT                   /evidence="ECO:0000250"
FT   CHAIN           27..140
FT                   /note="Perlin matrix protein"
FT                   /id="PRO_0000379786"
SQ   SEQUENCE   140 AA;  16314 MW;  2E82C932B5C72C2D CRC64;
     MTCTLRLTVA ALVLLGICHL SRPVAAYQKC ARYWYCWLPY DIERDRYDDG YRLCCYCRNA
     WTPWQCREDE QFERLRCGSR YYTLCCYTED DNGNGNGNGN GYGNGNGNGN GNNYLKYLFG
     GNGNGNGEFW EEYIDERYDK