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19  structures 265  species 0  interactions 7178  sequences 78  architectures

Family: Expansin_C (PF01357)

Summary: Expansin C-terminal domain

Pfam includes annotations and additional family information from a range of different sources. These sources can be accessed via the tabs below.

The Pfam group coordinates the annotation of Pfam families in Wikipedia, but we have not yet assigned a Wikipedia article to this family. If you think that a particular Wikipedia article provides good annotation, please let us know.

This tab holds the annotation information that is stored in the Pfam database. As we move to using Wikipedia as our main source of annotation, the contents of this tab will be gradually replaced by the Wikipedia tab.

Expansin C-terminal domain Provide feedback

This domain is found at the C-terminus of expansins, plant cell wall proteins involved in the non-enzymatic rearrangement of cell walls during cell growth. It contains the allergens lol PI, PII and PIII from Lolium perenne.

Literature references

  1. Ansari AA, Shenbagamurthi P, Marsh DG; , Biochemistry 1989;28:8665-8670.: Complete primary structure of a Lolium perenne (perennial rye grass) pollen allergen, Lol p III: comparison with known Lol p I and II sequences. PUBMED:2605214 EPMC:2605214

  2. Kende H, Bradford K, Brummell D, Cho HT, Cosgrove D, Fleming A, Gehring C, Lee Y, McQueen-Mason S, Rose J, Voesenek LA;, Plant Mol Biol. 2004;55:311-314.: Nomenclature for members of the expansin superfamily of genes and proteins. PUBMED:15604683 EPMC:15604683


External database links

This tab holds annotation information from the InterPro database.

InterPro entry IPR007117

Expansins are secreted proteins of 25 to 27 Kd that were isolated first from young cucumber seedling and subsequently from other plant tissues. Expression of expansin genes correlates with growth of cells. Increase in expansin content also occurs during fruit ripening. Expansins act on the cell wall to promote its extensibility. The model for its mechanism of action postulates that expansins break non-covalent bonds between cell-wall polysaccharides, thereby permitting pressure dependent expansion of the cell [ PUBMED:11014181 , PUBMED:11641069 ].

Group-I pollen allergens of grasses have limited but significant sequence homology to expansin. These proteins are the main causative agent of hay fever and seasonal asthma induced by grass pollen. Extracts containing group-I allergens are also active in loosening cell-walls. Group-I pollen allergens and related proteins in vegetative tissues have been classified as beta-expansins, whereas the earlier discovered expansins are now referred as alpha-expansins [ PUBMED:9177257 ].

Expansin-like proteins are also found in some fungi. In Trichoderma reesei an expansin-like protein (Cel12A) acts as a glycoside hydrolase on xyloglucan and 1-4 beta-glucan. These hydrolytic actions differ from the action by expansins, which induce wall extension by a non-hydrolytic mechanism [ PUBMED:11553760 ].

Expansins consist of two domains closely packed and aligned so as to form a long, shallow groove with potential to bind a glycan backbone of ~10 sugar residues. The N-terminal cysteine-rich domain has distant sequence similarity to family-45 endoglucanases (EG45-like domain). The ~90-residue C-terminal domain may function as a cellulose-binding domain (CBD). It is composed of eight beta-strands assembled into two antiparallel beta-sheets. The two beta-sheets are at slight angles to each other and form a beta-sandwich similar to the Ig fold [ PUBMED:16984999 ].

This entry represents the expansin C-terminal CBD-like domain.

Domain organisation

Below is a listing of the unique domain organisations or architectures in which this domain is found. More...

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Pfam Clan

This family is a member of clan E-set (CL0159), which has the following description:

This clan includes a diverse range of domains that have an Ig-like fold and appear to be distantly related to each other. The clan includes: PKD domains, cadherins and several families of bacterial Ig-like domains as well as viral tail fibre proteins. it also includes several Fibronectin type III domain-containing families.

The clan contains the following 238 members:

A2M A2M_BRD A2M_recep AA9 Adeno_GP19K AlcCBM31 Alpha-amylase_N Alpha_adaptinC2 Alpha_E2_glycop Anth_Ig Arch_flagellin aRib Arylsulfotran_N ASF1_hist_chap ATG19 BACON BACON_2 BatD BIg21 Big_1 Big_10 Big_11 Big_12 Big_13 Big_2 Big_3 Big_3_2 Big_3_3 Big_3_4 Big_3_5 Big_4 Big_5 Big_6 Big_7 Big_8 Big_9 Bile_Hydr_Trans BiPBP_C bMG1 bMG10 bMG3 bMG5 bMG6 BslA BsuPI Cadherin Cadherin-like Cadherin_2 Cadherin_3 Cadherin_4 Cadherin_5 Cadherin_pro CagX Calx-beta Candida_ALS_N CARDB CBM39 CBM_X2 CD45 CelD_N Ceramidse_alk_C CHB_HEX_C CHB_HEX_C_1 ChitinaseA_N ChiW_Ig_like Chlam_OMP6 CHU_C Coatamer_beta_C COP-gamma_platf CopC CshA_repeat Cyc-maltodext_N Cytomega_US3 DsbC DUF11 DUF1410 DUF1425 DUF1929 DUF2271 DUF3244 DUF3327 DUF3416 DUF3458 DUF3501 DUF3823_C DUF3859 DUF4165 DUF4179 DUF4426 DUF4469 DUF4625 DUF4879 DUF4959 DUF4981 DUF4982 DUF4998 DUF5001 DUF5008 DUF5011 DUF5065 DUF5115 DUF525 DUF5643 DUF6383 DUF916 EB_dh ECD EpoR_lig-bind ERAP1_C EstA_Ig_like Expansin_C Filamin FixG_C Flavi_glycop_C FlgD_ig fn3 Fn3-like fn3_2 fn3_4 fn3_5 fn3_6 FN3_7 Fn3_assoc fn3_PAP GBS_Bsp-like Glucodextran_B Glyco_hydro2_C5 Glyco_hydro_2 Gmad2 GMP_PDE_delta GPI-anchored Hanta_G1 He_PIG HECW_N HemeBinding_Shp Hemocyanin_C Herpes_BLLF1 HYR IFNGR1 Ig_GlcNase Ig_mannosidase IL12p40_C Il13Ra_Ig IL17R_fnIII_D1 IL17R_fnIII_D2 IL2RB_N1 IL3Ra_N IL4Ra_N IL6Ra-bind Inhibitor_I42 Inhibitor_I71 InlK_D3 Integrin_alpha2 Interfer-bind Invasin_D3 IRK_C IrmA Iron_transport LEA_2 Lep_receptor_Ig LIFR_N Lipase_bact_N LPMO_10 LRR_adjacent LTD Mannosidase_ig MetallophosC MG1 MG2 MG3 MG4 Mo-co_dimer N_BRCA1_IG Na_K-ATPase NEAT Neocarzinostat Neurexophilin NPCBM_assoc PapD_C PBP-Tp47_c Peptidase_C25_C Phlebo_G2_C PhoD_N PKD PKD_2 PKD_3 PKD_4 PKD_5 PKD_6 Por_Secre_tail Pox_vIL-18BP Psg1 PTP_tm Pur_ac_phosph_N Qn_am_d_aII Qn_am_d_aIII RabGGT_insert Reeler REJ RET_CLD1 RET_CLD3 RET_CLD4 RGI_lyase RHD_dimer Rho_GDI Rib RibLong SCAB-Ig SKICH SLAM SoxZ SprB SusE SVA SWM_repeat T2SS-T3SS_pil_N Tafi-CsgC TarS_C1 TcA_RBD TcfC TIG TIG_2 TIG_plexin TIG_SUH Tissue_fac Top6b_C Transglut_C Transglut_N TRAP_beta TraQ_transposon UL16 Velvet WIF Wzt_C Y_Y_Y YBD ZirS_C Zona_pellucida

Alignments

We store a range of different sequence alignments for families. As well as the seed alignment from which the family is built, we provide the full alignment, generated by searching the sequence database (reference proteomes) using the family HMM. We also generate alignments using four representative proteomes (RP) sets and the UniProtKB sequence database. More...

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We make a range of alignments for each Pfam-A family. You can see a description of each above. You can view these alignments in various ways but please note that some types of alignment are never generated while others may not be available for all families, most commonly because the alignments are too large to handle.

  Seed
(274)
Full
(7178)
Representative proteomes UniProt
(10780)
RP15
(656)
RP35
(3548)
RP55
(5849)
RP75
(7787)
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PP/heatmap 1            

1Cannot generate PP/Heatmap alignments for seeds; no PP data available

Key: ✓ available, x not generated, not available.

Format an alignment

  Seed
(274)
Full
(7178)
Representative proteomes UniProt
(10780)
RP15
(656)
RP35
(3548)
RP55
(5849)
RP75
(7787)
Alignment:
Format:
Order:
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Download options

We make all of our alignments available in Stockholm format. You can download them here as raw, plain text files or as gzip-compressed files.

  Seed
(274)
Full
(7178)
Representative proteomes UniProt
(10780)
RP15
(656)
RP35
(3548)
RP55
(5849)
RP75
(7787)
Raw Stockholm Download   Download   Download   Download   Download   Download   Download  
Gzipped Download   Download   Download   Download   Download   Download   Download  

You can also download a FASTA format file containing the full-length sequences for all sequences in the full alignment.

HMM logo

HMM logos is one way of visualising profile HMMs. Logos provide a quick overview of the properties of an HMM in a graphical form. You can see a more detailed description of HMM logos and find out how you can interpret them here. More...

Trees

This page displays the phylogenetic tree for this family's seed alignment. We use FastTree to calculate neighbour join trees with a local bootstrap based on 100 resamples (shown next to the tree nodes). FastTree calculates approximately-maximum-likelihood phylogenetic trees from our seed alignment.

Note: You can also download the data file for the tree.

Curation and family details

This section shows the detailed information about the Pfam family. You can see the definitions of many of the terms in this section in the glossary and a fuller explanation of the scoring system that we use in the scores section of the help pages.

Curation View help on the curation process

Seed source: SCOP
Previous IDs: Pollen_allergen; Pollen_allerg_1;
Type: Domain
Sequence Ontology: SO:0000417
Author: Bateman A
Number in seed: 274
Number in full: 7178
Average length of the domain: 79.40 aa
Average identity of full alignment: 36 %
Average coverage of the sequence by the domain: 30.83 %

HMM information View help on HMM parameters

HMM build commands:
build method: hmmbuild -o /dev/null HMM SEED
search method: hmmsearch -Z 57096847 -E 1000 --cpu 4 HMM pfamseq
Model details:
Parameter Sequence Domain
Gathering cut-off 24.6 24.6
Trusted cut-off 24.6 24.6
Noise cut-off 24.5 24.5
Model length: 80
Family (HMM) version: 23
Download: download the raw HMM for this family

Species distribution

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Selections

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Structures

For those sequences which have a structure in the Protein DataBank, we use the mapping between UniProt, PDB and Pfam coordinate systems from the PDBe group, to allow us to map Pfam domains onto UniProt sequences and three-dimensional protein structures. The table below shows the structures on which the Expansin_C domain has been found. There are 19 instances of this domain found in the PDB. Note that there may be multiple copies of the domain in a single PDB structure, since many structures contain multiple copies of the same protein sequence.

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AlphaFold Structure Predictions

The list of proteins below match this family and have AlphaFold predicted structures. Click on the protein accession to view the predicted structure.

Protein Predicted structure External Information
A0A096TYJ9 View 3D Structure Click here
A0A0P0VHE0 View 3D Structure Click here
A0A0P0W8M7 View 3D Structure Click here
A0A0P0WZN6 View 3D Structure Click here
A0A0R0F8K6 View 3D Structure Click here
A0A0R0FKV8 View 3D Structure Click here
A0A0R0HKK8 View 3D Structure Click here
A0A0R0HU37 View 3D Structure Click here
A0A0R0IRT2 View 3D Structure Click here
A0A0R0JDM2 View 3D Structure Click here
A0A0R0KLL6 View 3D Structure Click here
A0A0R4J2U5 View 3D Structure Click here
A0A0R4J337 View 3D Structure Click here
A0A0R4J4A3 View 3D Structure Click here
A0A0R4J4B0 View 3D Structure Click here
A0A0R4J508 View 3D Structure Click here
A0A0R4J5B0 View 3D Structure Click here
A0A1D6E4U7 View 3D Structure Click here
A0A1D6EVK8 View 3D Structure Click here
A0A1D6GWM1 View 3D Structure Click here
A0A1D6H550 View 3D Structure Click here
A0A1D6H557 View 3D Structure Click here
A0A1D6H579 View 3D Structure Click here
A0A1D6H581 View 3D Structure Click here
A0A1D6HEG4 View 3D Structure Click here
A0A1D6HF43 View 3D Structure Click here
A0A1D6HH67 View 3D Structure Click here
A0A1D6HH68 View 3D Structure Click here
A0A1D6HH69 View 3D Structure Click here
A0A1D6HH69 View 3D Structure Click here
A0A1D6HH70 View 3D Structure Click here
A0A1D6HH71 View 3D Structure Click here
A0A1D6HH72 View 3D Structure Click here
A0A1D6HH73 View 3D Structure Click here
A0A1D6HK98 View 3D Structure Click here
A0A1D6HYG3 View 3D Structure Click here
A0A1D6JD61 View 3D Structure Click here
A0A1D6JK16 View 3D Structure Click here
A0A1D6JNZ8 View 3D Structure Click here
A0A1D6JNZ9 View 3D Structure Click here
A0A1D6K801 View 3D Structure Click here
A0A1D6K8H5 View 3D Structure Click here
A0A1D6K8H7 View 3D Structure Click here
A0A1D6KM59 View 3D Structure Click here
A0A1D6KM60 View 3D Structure Click here
A0A1D6KUN7 View 3D Structure Click here
A0A1D6KUP3 View 3D Structure Click here
A0A1D6KUP4 View 3D Structure Click here
A0A1D6KUP5 View 3D Structure Click here
A0A1D6KUP6 View 3D Structure Click here
A0A1D6KUP7 View 3D Structure Click here
A0A1D6KX41 View 3D Structure Click here
A0A1D6KX41 View 3D Structure Click here
A0A1D6LEA6 View 3D Structure Click here
A0A1D6LEH7 View 3D Structure Click here
A0A1D6LEH8 View 3D Structure Click here
A0A1D6LEH9 View 3D Structure Click here
A0A1D6LEI0 View 3D Structure Click here
A0A1D6LEI2 View 3D Structure Click here
A0A1D6LEI3 View 3D Structure Click here
A0A1D6LEI4 View 3D Structure Click here
A0A1D6LEI5 View 3D Structure Click here
A0A1D6M6L1 View 3D Structure Click here
A0A1D6M7M5 View 3D Structure Click here
A0A1D6MPF4 View 3D Structure Click here
A0A1D6MPF6 View 3D Structure Click here
A0A1D6MQG9 View 3D Structure Click here
A0A1D6MRN4 View 3D Structure Click here
A0A1D6NZ51 View 3D Structure Click here
A0A1D6P6X6 View 3D Structure Click here
A0A1D6PBV6 View 3D Structure Click here
A0A1D6PYE2 View 3D Structure Click here
B4F8B6 View 3D Structure Click here
B4FBN4 View 3D Structure Click here
B4FEH6 View 3D Structure Click here
B4FK70 View 3D Structure Click here
B4FL59 View 3D Structure Click here
B4FMR3 View 3D Structure Click here
B4FPA9 View 3D Structure Click here
B4FR82 View 3D Structure Click here
B4FRM9 View 3D Structure Click here
B4FRP2 View 3D Structure Click here
B4FSL7 View 3D Structure Click here
B4FW28 View 3D Structure Click here
B4FWR8 View 3D Structure Click here
B4FXT7 View 3D Structure Click here
B4FYF7 View 3D Structure Click here
B6T629 View 3D Structure Click here
B6TDY2 View 3D Structure Click here
B6TRH9 View 3D Structure Click here
B6TUA7 View 3D Structure Click here
C0P890 View 3D Structure Click here
C0P9D0 View 3D Structure Click here
C0PJW8 View 3D Structure Click here
C4J9L0 View 3D Structure Click here
C6TDU0 View 3D Structure Click here
C6TN48 View 3D Structure Click here
F4IBJ3 View 3D Structure Click here
G9FTF9 View 3D Structure Click here
H9TN45 View 3D Structure Click here
H9TN46 View 3D Structure Click here
H9TN49 View 3D Structure Click here
H9TN50 View 3D Structure Click here
H9TN51 View 3D Structure Click here
I1J5S5 View 3D Structure Click here
I1J9Q9 View 3D Structure Click here
I1JA17 View 3D Structure Click here
I1JHL8 View 3D Structure Click here
I1JHS2 View 3D Structure Click here
I1JI00 View 3D Structure Click here
I1JQZ1 View 3D Structure Click here
I1JWT8 View 3D Structure Click here
I1JYB5 View 3D Structure Click here
I1K0V6 View 3D Structure Click here
I1K0V7 View 3D Structure Click here
I1K0Z7 View 3D Structure Click here
I1K7H3 View 3D Structure Click here
I1K7H4 View 3D Structure Click here
I1KCU2 View 3D Structure Click here
I1KF31 View 3D Structure Click here
I1KMG7 View 3D Structure Click here
I1L5V8 View 3D Structure Click here
I1LAH2 View 3D Structure Click here
I1LAH4 View 3D Structure Click here
I1LGU8 View 3D Structure Click here
I1LIN4 View 3D Structure Click here
I1LK20 View 3D Structure Click here
I1LPF0 View 3D Structure Click here
I1LS07 View 3D Structure Click here
I1LT27 View 3D Structure Click here
I1M850 View 3D Structure Click here
I1MBR5 View 3D Structure Click here
I1MDE8 View 3D Structure Click here
I1MV69 View 3D Structure Click here
I1MV70 View 3D Structure Click here
I1MV71 View 3D Structure Click here
I1MV72 View 3D Structure Click here
I1MVB4 View 3D Structure Click here
I1MZC3 View 3D Structure Click here
I1MZI2 View 3D Structure Click here
I1N2H6 View 3D Structure Click here
I1N4F0 View 3D Structure Click here
I1N660 View 3D Structure Click here
I1NAD6 View 3D Structure Click here
I1NBK4 View 3D Structure Click here
K7K3X7 View 3D Structure Click here
K7K4V5 View 3D Structure Click here
K7KMZ3 View 3D Structure Click here
K7KN83 View 3D Structure Click here
K7KX64 View 3D Structure Click here
K7LMY8 View 3D Structure Click here
K7M8I8 View 3D Structure Click here
K7MKX0 View 3D Structure Click here
K7MQ40 View 3D Structure Click here
K7MUX6 View 3D Structure Click here
K7N161 View 3D Structure Click here
K7N2F3 View 3D Structure Click here
K7TN25 View 3D Structure Click here
K7U2A7 View 3D Structure Click here
K7U698 View 3D Structure Click here
K7UCL3 View 3D Structure Click here
K7USZ1 View 3D Structure Click here
K7VCH0 View 3D Structure Click here
K7VDB7 View 3D Structure Click here
K7VGX2 View 3D Structure Click here
K7VT40 View 3D Structure Click here
K7VTU7 View 3D Structure Click here
K7W2Z4 View 3D Structure Click here
K7WCA0 View 3D Structure Click here
K7WCD1 View 3D Structure Click here
K7WH77 View 3D Structure Click here
O22874 View 3D Structure Click here
O23547 View 3D Structure Click here
O24230 View 3D Structure Click here
O48818 View 3D Structure Click here
O80622 View 3D Structure Click here
O80932 View 3D Structure Click here
P0C1Y4 View 3D Structure Click here
P0C1Y5 View 3D Structure Click here
P58738 View 3D Structure Click here
Q07154 View 3D Structure Click here
Q0DAC4 View 3D Structure Click here
Q0DHB7 View 3D Structure Click here
Q0DZ85 View 3D Structure Click here
Q10G40 View 3D Structure Click here
Q10KN4 View 3D Structure Click here
Q10RK1 View 3D Structure Click here
Q10S70 View 3D Structure Click here
Q10T32 View 3D Structure Click here
Q19K79 View 3D Structure Click here
Q1ZYQ8 View 3D Structure Click here
Q2QP13 View 3D Structure Click here
Q336T5 View 3D Structure Click here
Q38864 View 3D Structure Click here
Q38865 View 3D Structure Click here
Q38866 View 3D Structure Click here
Q39802 View 3D Structure Click here
Q40636 View 3D Structure Click here
Q40637 View 3D Structure Click here
Q40638 View 3D Structure Click here
Q4PNY1 View 3D Structure Click here
Q4PR39 View 3D Structure Click here
Q4PR40 View 3D Structure Click here
Q4PR41 View 3D Structure Click here
Q4PR42 View 3D Structure Click here
Q4PR43 View 3D Structure Click here
Q4PR44 View 3D Structure Click here
Q4PR48 View 3D Structure Click here
Q4PR49 View 3D Structure Click here
Q4PR50 View 3D Structure Click here
Q4PR51 View 3D Structure Click here
Q4PR52 View 3D Structure Click here
Q4PR53 View 3D Structure Click here
Q5W6Z9 View 3D Structure Click here
Q5Z980 View 3D Structure Click here
Q653Z7 View 3D Structure Click here
Q654A6 View 3D Structure Click here
Q654A7 View 3D Structure Click here
Q654A8 View 3D Structure Click here
Q654B1 View 3D Structure Click here
Q67W98 View 3D Structure Click here
Q69XV9 View 3D Structure Click here
Q6H676 View 3D Structure Click here
Q6H677 View 3D Structure Click here
Q6YYW5 View 3D Structure Click here
Q6ZGU9 View 3D Structure Click here
Q75I75 View 3D Structure Click here
Q7G6Z2 View 3D Structure Click here
Q7G6Z5 View 3D Structure Click here
Q7X6J9 View 3D Structure Click here
Q7X7H1 View 3D Structure Click here
Q7XBA3 View 3D Structure Click here
Q7XCA7 View 3D Structure Click here
Q7XCG7 View 3D Structure Click here
Q7XCL0 View 3D Structure Click here
Q7XE35 View 3D Structure Click here
Q7XLW2 View 3D Structure Click here
Q7XT39 View 3D Structure Click here
Q7XT40 View 3D Structure Click here
Q7XUD0 View 3D Structure Click here
Q7XVQ2 View 3D Structure Click here
Q7XVQ3 View 3D Structure Click here
Q7XVQ4 View 3D Structure Click here
Q7XWU8 View 3D Structure Click here
Q850K7 View 3D Structure Click here
Q852A1 View 3D Structure Click here
Q8H274 View 3D Structure Click here
Q8H7T4 View 3D Structure Click here
Q8W2X8 View 3D Structure Click here
Q946J4 View 3D Structure Click here
Q94KS6 View 3D Structure Click here
Q94KS7 View 3D Structure Click here
Q94KS8 View 3D Structure Click here
Q94KT0 View 3D Structure Click here
Q94KT5 View 3D Structure Click here
Q94KT7 View 3D Structure Click here
Q94LR4 View 3D Structure Click here
Q9C554 View 3D Structure Click here
Q9FL76 View 3D Structure Click here
Q9FL77 View 3D Structure Click here
Q9FL78 View 3D Structure Click here
Q9FL79 View 3D Structure Click here
Q9FL80 View 3D Structure Click here
Q9FL81 View 3D Structure Click here
Q9FMA0 View 3D Structure Click here
Q9LD07 View 3D Structure Click here
Q9LDJ3 View 3D Structure Click here
Q9LDR9 View 3D Structure Click here
Q9LN94 View 3D Structure Click here
Q9LNU3 View 3D Structure Click here
Q9LQ07 View 3D Structure Click here
Q9LZ99 View 3D Structure Click here
Q9LZT4 View 3D Structure Click here
Q9LZT5 View 3D Structure Click here
Q9M0I2 View 3D Structure Click here
Q9M203 View 3D Structure Click here
Q9M2S9 View 3D Structure Click here
Q9M4X7 View 3D Structure Click here
Q9M9P0 View 3D Structure Click here
Q9SHD1 View 3D Structure Click here
Q9SHY6 View 3D Structure Click here
Q9SKU2 View 3D Structure Click here
Q9SVE5 View 3D Structure Click here
Q9SZM1 View 3D Structure Click here
Q9XHX0 View 3D Structure Click here
Q9ZSI1 View 3D Structure Click here
V6CKR0 View 3D Structure Click here