Descriptions

(Annotation from UniProt)
The PMEI region may act as an autoinhibitory domain.

Autoinhibitory domains (AIDs)

Target domain

284-578 (Pectinesterase domain)

Relief mechanism

Assay

Accessory elements

No accessory elements

References

Autoinhibited structure

Activated structure

1 structures for Q5MFV8

Entry ID Method Resolution Chain Position Source
AF-Q5MFV8-F1 Predicted AlphaFoldDB

45 variants for Q5MFV8

Variant ID(s) Position Change Description Diseaes Association Provenance
ENSVATH13664697 12 I>V No 1000Genomes
ENSVATH05732840 19 A>T No 1000Genomes
ENSVATH14623486 22 V>I No 1000Genomes
tmp_2_19329966_G_A 32 A>V No 1000Genomes
tmp_2_19329919_T_C 48 T>A No 1000Genomes
tmp_2_19329906_G_T 52 A>D No 1000Genomes
tmp_2_19329907_C_A 52 A>S No 1000Genomes
ENSVATH05732838 55 V>A No 1000Genomes
ENSVATH05732837 90 K>E No 1000Genomes
ENSVATH14623485 103 N>T No 1000Genomes
tmp_2_19329726_T_C 112 K>R No 1000Genomes
ENSVATH14623474 123 T>S No 1000Genomes
ENSVATH14623473 135 I>T No 1000Genomes
ENSVATH13664684 147 T>I No 1000Genomes
ENSVATH13664684 147 T>N No 1000Genomes
ENSVATH13664683 192 S>G No 1000Genomes
tmp_2_19329449_G_C 204 F>L No 1000Genomes
tmp_2_19329406_C_T 219 A>T No 1000Genomes
ENSVATH13664681 234 P>S No 1000Genomes
ENSVATH13664681 234 P>T No 1000Genomes
tmp_2_19329357_A_C 235 V>G No 1000Genomes
ENSVATH05732832 235 V>M No 1000Genomes
ENSVATH01997242 241 P>A No 1000Genomes
ENSVATH13664680 251 E>K No 1000Genomes
ENSVATH01997241 267 T>A No 1000Genomes
ENSVATH13664679 273 S>R No 1000Genomes
tmp_2_19329229_C_T 278 A>T No 1000Genomes
ENSVATH13664678 306 E>Q No 1000Genomes
tmp_2_19329105_C_G 319 G>A No 1000Genomes
tmp_2_19329096_C_T 322 R>K No 1000Genomes
tmp_2_19329079_G_C 328 P>A No 1000Genomes
tmp_2_19329078_G_T 328 P>H No 1000Genomes
tmp_2_19329068_C_G 331 K>N No 1000Genomes
ENSVATH05732827 374 M>I No 1000Genomes
tmp_2_19328752_A_G 408 F>L No 1000Genomes
ENSVATH13664676 473 M>L No 1000Genomes
ENSVATH05732823 507 K>I No 1000Genomes
tmp_2_19328453_T_A 507 K>N No 1000Genomes
tmp_2_19328391_T_C 528 K>R No 1000Genomes
ENSVATH13664664 534 S>N No 1000Genomes
tmp_2_19328339_G_C 545 N>K No 1000Genomes
tmp_2_19328312_G_T 554 N>K No 1000Genomes
tmp_2_19328310_C_A 555 R>L No 1000Genomes
ENSVATH14623472 588 N>S No 1000Genomes
tmp_2_19328208_A_C 589 V>G No 1000Genomes

No associated diseases with Q5MFV8

3 regional properties for Q5MFV8

Type Name Position InterPro Accession
domain Pectinesterase, catalytic 284 - 578 IPR000070
domain Pectinesterase inhibitor domain 10 - 188 IPR006501
active_site Pectinesterase, Tyr active site 308 - 327 IPR018040

Functions

Description
EC Number 3.1.1.11 Carboxylic ester hydrolases
Subcellular Localization
  • Cell membrane
  • Secreted, cell wall
  • Golgi apparatus membrane
  • Distributed in the whole pollen tube, including the plasma membrane and pollen tube wall (PubMed:15659637)
  • Cleaved in the Golgi apparatus by SBT6
  • 1 (S1P) after the Arg-Arg-Leu-Leu (RRLL) and Arg-Lys-Leu-Met (RKLM) motifs
  • This processing is required for extracellular targeting (PubMed:19144003)
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

4 GO annotations of cellular component

Name Definition
extracellular region The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
Golgi membrane The lipid bilayer surrounding any of the compartments of the Golgi apparatus.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
pollen tube A tubular cell projection that is part of a pollen tube cell and extends from a pollen grain.

3 GO annotations of molecular function

Name Definition
aspartyl esterase activity Catalysis of the hydrolysis of an ester bond by a mechanism involving a catalytically active aspartic acid residue.
pectinesterase activity Catalysis of the reaction: pectin + n H2O = n methanol + pectate.
pectinesterase inhibitor activity Binds to and stops, prevents or reduces the activity of pectinesterase.

3 GO annotations of biological process

Name Definition
cell wall modification The series of events leading to chemical and structural alterations of an existing cell wall that can result in loosening, increased extensibility or disassembly.
pectin catabolic process The chemical reactions and pathways resulting in the breakdown of pectin, a polymer containing a backbone of alpha-1,4-linked D-galacturonic acid residues.
pollen tube growth Growth of pollen via tip extension of the intine wall.

42 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
O80722 PME4 Pectinesterase 4 Arabidopsis thaliana (Mouse-ear cress) SS
Q5MFV6 VGDH2 Probable pectinesterase/pectinesterase inhibitor VGDH2 Arabidopsis thaliana (Mouse-ear cress) SS
Q9SRX4 PME7 Probable pectinesterase/pectinesterase inhibitor 7 Arabidopsis thaliana (Mouse-ear cress) SS
Q1JPL7 PME18 Pectinesterase/pectinesterase inhibitor 18 Arabidopsis thaliana (Mouse-ear cress) SS
Q84JX1 PME19 Probable pectinesterase/pectinesterase inhibitor 19 Arabidopsis thaliana (Mouse-ear cress) SS
O49298 PME6 Probable pectinesterase/pectinesterase inhibitor 6 Arabidopsis thaliana (Mouse-ear cress) SS
Q42534 PME2 Pectinesterase 2 Arabidopsis thaliana (Mouse-ear cress) SS
Q43867 PME1 Pectinesterase 1 Arabidopsis thaliana (Mouse-ear cress) SS
O48711 PME12 Probable pectinesterase/pectinesterase inhibitor 12 Arabidopsis thaliana (Mouse-ear cress) SS
Q7Y201 PME13 Probable pectinesterase/pectinesterase inhibitor 13 Arabidopsis thaliana (Mouse-ear cress) SS
Q9SKX2 PME16 Probable pectinesterase/pectinesterase inhibitor 16 Arabidopsis thaliana (Mouse-ear cress) SS
O22149 PME17 Probable pectinesterase/pectinesterase inhibitor 17 Arabidopsis thaliana (Mouse-ear cress) SS
O22256 PME20 Probable pectinesterase/pectinesterase inhibitor 20 Arabidopsis thaliana (Mouse-ear cress) SS
Q8GX86 PME21 Probable pectinesterase/pectinesterase inhibitor 21 Arabidopsis thaliana (Mouse-ear cress) SS
Q9M9W7 PME22 Putative pectinesterase/pectinesterase inhibitor 22 Arabidopsis thaliana (Mouse-ear cress) SS
Q8GXA1 PME23 Probable pectinesterase/pectinesterase inhibitor 23 Arabidopsis thaliana (Mouse-ear cress) SS
Q9SG77 PME24 Putative pectinesterase/pectinesterase inhibitor 24 Arabidopsis thaliana (Mouse-ear cress) SS
O49006 PME3 Pectinesterase/pectinesterase inhibitor 3 Arabidopsis thaliana (Mouse-ear cress) SS
Q9STY3 PME33 Probable pectinesterase/pectinesterase inhibitor 33 Arabidopsis thaliana (Mouse-ear cress) SS
Q9LYT5 PME35 Probable pectinesterase/pectinesterase inhibitor 35 Arabidopsis thaliana (Mouse-ear cress) SS
Q84R10 PME36 Probable pectinesterase/pectinesterase inhibitor 36 Arabidopsis thaliana (Mouse-ear cress) SS
O81320 PME38 Putative pectinesterase/pectinesterase inhibitor 38 Arabidopsis thaliana (Mouse-ear cress) SS
O81415 PME39 Probable pectinesterase/pectinesterase inhibitor 39 Arabidopsis thaliana (Mouse-ear cress) SS
O81301 PME40 Probable pectinesterase/pectinesterase inhibitor 40 Arabidopsis thaliana (Mouse-ear cress) SS
Q8RXK7 PME41 Probable pectinesterase/pectinesterase inhibitor 41 Arabidopsis thaliana (Mouse-ear cress) SS
Q1PEC0 PME42 Probable pectinesterase/pectinesterase inhibitor 42 Arabidopsis thaliana (Mouse-ear cress) SS
O23447 PME43 Putative pectinesterase/pectinesterase inhibitor 43 Arabidopsis thaliana (Mouse-ear cress) SS
Q9SMY7 PME44 Probable pectinesterase/pectinesterase inhibitor 44 Arabidopsis thaliana (Mouse-ear cress) SS
Q9SMY6 PME45 Putative pectinesterase/pectinesterase inhibitor 45 Arabidopsis thaliana (Mouse-ear cress) SS
Q9FF78 PME46 Probable pectinesterase/pectinesterase inhibitor 46 Arabidopsis thaliana (Mouse-ear cress) SS
Q9FF77 PME47 Probable pectinesterase/pectinesterase inhibitor 47 Arabidopsis thaliana (Mouse-ear cress) SS
Q9LXD9 PME51 Probable pectinesterase/pectinesterase inhibitor 51 Arabidopsis thaliana (Mouse-ear cress) SS
Q3E989 PME54 Probable pectinesterase/pectinesterase inhibitor 54 Arabidopsis thaliana (Mouse-ear cress) SS
Q3E8Z8 PME28 Putative pectinesterase/pectinesterase inhibitor 28 Arabidopsis thaliana (Mouse-ear cress) SS
Q9FJ21 PME58 Probable pectinesterase/pectinesterase inhibitor 58 Arabidopsis thaliana (Mouse-ear cress) SS
Q9FHN5 PME59 Probable pectinesterase/pectinesterase inhibitor 59 Arabidopsis thaliana (Mouse-ear cress) SS
Q9FHN4 PME60 Probable pectinesterase/pectinesterase inhibitor 60 Arabidopsis thaliana (Mouse-ear cress) SS
Q9FK05 PME61 Probable pectinesterase/pectinesterase inhibitor 61 Arabidopsis thaliana (Mouse-ear cress) SS
Q8L7Q7 PME64 Probable pectinesterase/pectinesterase inhibitor 64 Arabidopsis thaliana (Mouse-ear cress) SS
Q94CB1 PME25 Probable pectinesterase/pectinesterase inhibitor 25 Arabidopsis thaliana (Mouse-ear cress) SS
Q9LXK7 PME32 Probable pectinesterase/pectinesterase inhibitor 32 Arabidopsis thaliana (Mouse-ear cress) SS
Q9M3B0 PME34 Probable pectinesterase/pectinesterase inhibitor 34 Arabidopsis thaliana (Mouse-ear cress) SS
10 20 30 40 50 60
MIGKVVVSVA SILLIVGVAI GVVAYINKNG DANLSPQMKA VRGICEATSD KASCVKTLEP
70 80 90 100 110 120
VKSDDPNKLI KAFMLATRDA ITQSSNFTGK TEGNLGSGIS PNNKAVLDYC KKVFMYALED
130 140 150 160 170 180
LSTIVEEMGE DLNQIGSKID QLKQWLTGVY NYQTDCLDDI EEDDLRKTIG EGIASSKILT
190 200 210 220 230 240
SNAIDIFHTV VSAMAKLNLK VEDFKNMTGG IFAPSDKGAA PVNKGTPPVA DDSPVADPDG
250 260 270 280 290 300
PARRLLEDID ETGIPTWVSG ADRKLMTKAG RGSNDGGARI RATFVVAKDG SGQFKTVQQA
310 320 330 340 350 360
VNACPEKNPG RCIIHIKAGI YREQVIIPKK KNNIFMFGDG ARKTVISYNR SVKLSPGTTT
370 380 390 400 410 420
SLSGTVQVES EGFMAKWIGF KNTAGPMGHQ AVAIRVNGDR AVIFNCRFDG YQDTLYVNNG
430 440 450 460 470 480
RQFYRNIVVS GTVDFIFGKS ATVIQNSLIV VRKGNKGQFN TVTADGNEKG LAMKIGIVLQ
490 500 510 520 530 540
NCRIVPDKKL AAERLIVESY LGRPWKKFST TVIINSEIGD VIRPEGWKIW DGESFHKSCR
550 560 570 580 590
YVEYNNRGPG AITNRRVNWV KIARSAAEVN DFTVANWLGP INWIQEANVP VTLGL