สมบัติของเอนไซม์

posted on 09 Aug 2011 17:16 by enzyme501s in enzyme

1.มีโครงสร้างทางเคมีเป็นโปรตีน  ประกอบด้วยพอลิเพปไทด์ (polypeptide) สายเดี่ยวหรือหลายสายที่ม้วนเป็นก้อนกลม (globular protein) มีโครงรูป (conformation) ที่จำเพาะและถูกกำหนดมาโดยลำดับการเรียงตัวของกรดอะมิโน

 

 

2.เป็นตัวเร่งปฏิกิริยา (catalyst) สามารถเร่งอัตราการเกิดปฏิกิริยาโดยเป็นตัวลดระดับพลังงานกระตุ้น  ทำให้ปฏิกิริยาเกิดได้เร็วยิ่งขึ้น  โดยไม่ทำให้สมดุลของปฏิกิริยาเปลี่ยนแปลงไป                                                                         

 

 
 

3.เอนไซม์ยังคงสภาพเดิมทั้งปริมาณและคุณสมบัติต่างๆภายหลังการเกิดปฏิกิริยาแล้วจึงสามารถเร่งปฏิกิริยาต่อไปได้อีกเรื่อยๆ

 

 
4.มีความจำเพาะเจาะจง (specificity) ต่อสารตั้งต้น (substrate) ที่เข้าทำปฏิกิริยา  แต่ละชนิดจึงสามารถเร่งปฏิกิริยาใดปฏิกิริยาหนึ่งโดยเฉพาะเท่านั้น  ตำแหน่งในโมเลกุลของเอนไซม์ที่เข้าร่วมปฏิกิริยากับสารตั้งต้น เรียกว่า บริเวณเร่ง (active site)

 

 

5.เอนไซม์มีความไวต่อปฏิกิริยามาก แม้ในปฏิกิริยาเพียงเล็กน้อยก็สามารถเร่งปฏิกิริยาได้

 

*พลังงานกระตุ้น (activation energy) หมายถึง พลังงานที่น้อยที่สุดที่จะทำให้การชนกันของอนุภาคสาร  มีปฏิกิริยาเคมีเกิดเกิดขึ้น  โดยพลังงานกระตุ้นจะทำให้อนุภาคของสารมีพลังงานสูงขึ้นจึงเคลื่อนที่ได้เร็วขึ้นและมีโอกาสมีจะเกิดการชนกันมากขึ้น  มีทิศทางที่เหมาะสมและพลังงานในการชนก็จะสูงขึ้น  พลังงานกระตุ้นของแต่ละปฏิกิริยาจะมีค่าตกต่างกัน  ปฏิกิริยาที่มีพลังงานกระตุ้นต่ำมีโอกาสมีโอกาสที่จะเกิดปฏิกิริยาได้ง่ายกว่าปฏิกิริยาที่มีพลังงานกระตุ้นสูง*

edit @ 9 Aug 2011 19:15:19 by ENZYME.s

Comment

Comment:

Tweet

big smile open-mounthed smile

#1345 By (113.53.8.217|113.53.8.217) on 2015-05-18 21:30

sad smile

#1344 By (14.207.228.4|14.207.228.4) on 2015-01-05 21:37

open-mounthed smile

#1343 By (171.7.244.76|171.7.244.76) on 2014-07-09 22:46

jvomnfo{znf612t, <a href="http://propeciausa.com/">Side effects of propecia</a>, ddyBNkg, G postmessage propecia subject remember, gCAaedp, http://propeciausa.com/ G postmessage propecia guest reply, waulFXI, <a href="http://brightgreenresearch.org/">Direct online payday loans</a>, LjekHSX, Fast cash advance payday loans, SrNwdyG, http://brightgreenresearch.org/ Instant online payday loans, JePgaep, <a href="http://syriantaskforce.org/">buy provigil</a>, bKqTrMn, buy provigil, SgSCUUt, http://syriantaskforce.org/ buy provigil, iievaMP, <a href="http://rosamundesausagegrill.com/">Xanax mexico</a>, xWLltuH, Xanax, eJNWjBQ, http://rosamundesausagegrill.com/ Xanax, eHooCQz, <a href="http://weaccuse.net/">Quick pay day loans</a>, tdDbOLf, Payday Loans, BPOTlud, http://weaccuse.net/ Pay Day Loans, NwDGjVZ, <a href="http://sockitprojects.com/">Xanax overdose</a>, wCsaELh, Alprazolam xanax, XttaYMp, http://sockitprojects.com/ Buy line xanax, RsCyHCY.

#1342 By cflbkypi (173.44.37.226|173.44.37.226) on 2014-01-15 13:58

Not only do they have great pricing, but in addition offer free and free 365 day returns! Did you know that you will get an extensive list of authentic designer handbags at http://www.ebay.com/?

#1341 By ???? ?? ?? ??? (173.208.173.242) on 2013-11-14 12:26

If the brand's name is Coach, then just how can the bag have a "GG" or "OO" print on the? If seems as if it is simple to be true, it usually has been. That leaves no spare dollars to pay money for a luxurious handbag.

#1340 By ????? ?????? ?? (173.208.173.242) on 2013-11-14 02:38

The advice is really interesting.|
???? ??? ??? http://www.umioceanside.com/????-???????-c-11.html

#1339 By ???? ??? ??? (91.207.7.13) on 2013-11-09 09:29

Enjoy a full look at the Woolrich John Rich & Bros. Spring/Summer 2014 Collection.Click here.

#1338 By woolrich uomo (124.128.236.189) on 2013-11-07 18:24

Everyone loves your blog post! Very worthwhile and informative posts and therefore original! I'm following yours now!

#1337 By moncler jackets uk (124.128.236.189) on 2013-11-07 15:03

Great stuff.Id like to suggest taking a look at a lot around the idea of french fries. What exactly are you looking for though?
??????? 2013 http://www.gasgrillpartsnow.com/categories-97.html

#1336 By ??????? 2013 (208.177.76.15) on 2013-11-06 18:53

I all the time used to study post in news papers but now as I am a user of internet so from now I am using net for articles, thanks to web.
????????????? ??? http://www.quepachuca.com/categories-58.html

#1335 By ????????????? ??? (208.177.76.15) on 2013-11-06 18:27

People will end up being significantly more inquisitive about cubic zirconia jewels.

#1334 By ?????? ????? (208.177.76.8) on 2013-11-06 17:04

Of course, what a talented web web page with instructive posts, Ill include backlink - bookmarking this webpage? Regards.
??? ?? ?? http://www.gasgrillpartsnow.com/categories-59.html

#1333 By ??? ?? ?? (208.177.76.15) on 2013-11-05 22:18

{Hi, all is going sound here and ofcourse every one is sharing information, thats really fine, keep up writing.|If you would like to improve your knowledge just keep visiting this web page and be updated with the newest information posted here.|Hello to all, the contents present at this site are genuinely remarkable for people knowledge, well, keep up the good work fellows.|No one can reject from the feature of this video posted at this web site, good job, keep it all the time.|No matter if some one searches for his required thing, therefore he/she desires to be available that in detail, thus that thing is maintained over here.|Since the admin of this site is working, no question very quickly it will be famous, due to its feature contents.|Quality articles or reviews is the main to invite the visitors to go to see the site, thats what this web page is providing.|What's up everyone, its my first visit at this web site, and paragraph is actually fruitful in support of me, keep up posting such posts.|Wow, what a video it is! Actually nice quality video, the lesson given in this video is genuinely informative.|If you are going for best contents like I do, simply visit this web site every day since it offers feature contents, thanks|Its awesome in favor of me to have a web page, which is beneficial in favor of my knowledge. thanks admin|I visited many blogs however the audio feature for audio songs present at this web site is genuinely fabulous.|Im gone to say to my little brother, that he should also visit this blog on regular basis to take updated from most recent news.|Thanks to my father who stated to me regarding this blog, this webpage is in fact amazing.|Hi there Dear, are you really visiting this web page on a regular basis, if so then you will definitely get pleasant knowledge.|I am John, how are you everybody? This article posted at this website is in fact pleasant.|What's up it's me Fiona, I am also visiting this web site daily, this web site is genuinely fastidious and the visitors are truly sharing fastidious thoughts.|Actually when someone doesnt know afterward its up to other visitors that they will help, so here it occurs.|Right away I am going away to do my breakfast, once having my breakfast coming over again to read more news.|Wow, this piece of writing is fastidious, my sister is analyzing such things, so I am going to let know her.|These are actually great ideas in about blogging. You have touched some pleasant factors here. Any way keep up wrinting.|Asking questions are truly fastidious thing if you are not understanding anything fully, but this article offers good understanding even.|Thats really a good video mentioned within this article regarding how to write a paragraph, therefore i got clear idea from here.|This paragraph provides clear idea for the new people of blogging, that truly how to do blogging and site-building.|This piece of writing about SEO gives clear picture for new SEO visitors that how to do SEO, thus keep it up. Nice work|Thanks for sharing such a fastidious idea, article is good, thats why i have read it entirely|If some one wishes expert view on the topic of running a blog then i recommend him/her to pay a visit this webpage, Keep up the good work.|Very rapidly this web site will be famous among all blogging and site-building users, due to it's fastidious articles|Every weekend i used to pay a quick visit this web page, for the reason that i want enjoyment, for the reason that this this web page conations actually nice funny stuff too.|Its not my first time to pay a quick visit this website, i am browsing this site dailly and obtain fastidious facts from here daily.}
????????????? ?? http://www.quepachuca.com/categories-58.html

#1332 By ????????????? ?? (208.177.76.15) on 2013-11-01 18:50

Thank you. {I value this|Good stuff}!|
?? ????? http://www.vivendadelmar.com/??-?????-c-4.html

#1331 By ?? ????? (199.15.233.137) on 2013-10-31 04:14

You know I love your blog!!!

#1330 By bottes andré (202.105.62.162) on 2013-10-31 01:51

There are some fascinating cut-off dates on this article however I don’t know if I see all of them middle to heart. There's some validity however I'll take hold opinion till I look into it further. Good article , thanks and we wish extra! Added to FeedBurner as well
??? ??? ?? http://www.sedeinc.com/

#1329 By ??? ??? ?? (66.197.141.154) on 2013-10-30 07:18

I am actually happy to glance at this blog posts which consists of lots of helpful data, thanks for providing these kinds of information.
??? ??? ?? http://www.sedeinc.com/

#1328 By ??? ??? ?? (208.177.76.15) on 2013-10-30 07:03

<strong><a href="http://viviennewestwood.iktvs.com/">viviennewestwood.iktvs</a></strong><h2><a href="http://www.mindholiday.com/">coach outlet online</a></h2><em><a href="http://www.1969leavers.com/photos_alumni.htm">forever 21</a></em>

#1327 By forever 21 (121.205.247.210) on 2013-10-30 06:11

This really answered my problem, thank you!
????? ?? http://www.idahotherapyservices.com/

#1326 By ????? ?? (66.197.141.154) on 2013-10-30 05:02

My brother recommended I might like this web site. He was totally right. This submit truly made my day. You can not imagine simply how so much time I had spent for this information! Thanks!|
???? ?????? http://www.umioceanside.com/????? ????????????-porter ?????????????-????? ??????????11002929p03p05-p-10.html

#1325 By ???? ?????? (91.207.7.205) on 2013-10-29 11:21

It's wonderful that you are getting thoughts from this article as well as from our discussion made here.|
?Orobianco ?????? RettangOra Chrono ?????? ??? ???????????? ???? ??? ??? OR-0023-15? http://www.yorkieroom.com/?orobianco-?????? rettangora chrono-?????? ??? ???????????? ???? ??? ???-or002315?-p-221.html

#1324 By ?Orobianco ?????? RettangOra Chrono ?????? ??? ???????????? ???? ??? ??? OR-0023-15? (208.177.76.9) on 2013-10-28 09:34

I'm really enjoying the theme/design of your website. Do you ever run into any browser compatibility problems? A few of my blog audience have complained about my blog not operating correctly in Explorer but looks great in Opera. Do you have any recommendations to help fix this problem?
??? ??? ?? ?? http://www.vipbagwed.com/gucci-bag-sales

#1323 By ??? ??? ?? ?? (62.210.202.235) on 2013-10-27 17:28

Hello! I know this is kinda off topic but I was wondering which blog platform are you using for this website? I'm getting tired of Wordpress because I've had issues with hackers and I'm looking at alternatives for another platform. I would be fantastic if you could point me in the direction of a good platform.
??? ??? http://www.populihu.com/coach-dogd

#1322 By ??? ??? (62.210.202.235) on 2013-10-27 16:13

Greetings from Los angeles! I'm bored at work so I decided to browse your website on my iphone during lunch break. I love the knowledge you present here and can't wait to take a look when I get home. I'm surprised at how fast your blog loaded on my cell phone .. I'm not even using WIFI, just 3G .. Anyways, excellent site!
??????? http://www.watchlikey.com/

#1321 By ??????? (62.210.202.240) on 2013-10-27 15:33

Hi there, okay brother there are certainly multiple blogging web sites, however I advise you to use Googles without charge blogging services.
http://libreriaastarte.com/ http://rsmotorhomesales.co.uk/

#1320 By http://libreriaastarte.com/ (208.177.76.15) on 2013-10-26 20:43

Can you please email me the code for this script or please tell me in detail about this script?
????? ?????? http://www.idahotherapyservices.com/

#1319 By ????? ?????? (208.177.76.15) on 2013-10-26 17:36

There are also other popular products available more often than not, such as Chanel logo earrings on the market.

#1318 By ?? (199.15.233.130) on 2013-10-26 10:12

The Moncler Overcoats is merely gadget that mankind requires once the dude is able the app many Moncler leather-based coats for a lot of instances on top of the to by method of countless the seasons.

#1317 By ?????? ??? ????? (199.15.233.131) on 2013-10-24 12:25

Hi! I'm at work surfing around your blog from my new iphone 4! Just wanted to say I love reading your blog and look forward to all your posts! Carry on the excellent work!|
????? ???? http://www.umioceanside.com/?????-????-porter-???????-???2???? ????2008?ss??70307887p01-p-348.html

#1316 By ????? ???? (91.207.7.205) on 2013-10-23 14:40

Currently YouTube video tutorials quality is more superior and better, therefore thats the reason that I am watching this video at here.
????? ?? http://www.idahotherapyservices.com/

#1315 By ????? ?? (208.177.76.15) on 2013-10-23 12:39

Very descriptive post, I liked that a lot. Will there be a part 2?|
Orobianco ???????Orobianco ?????? DELPAPA CHRONO ???? ?????? ??? ???? ??? OR-0020-3? http://www.yorkieroom.com/orobianco-???????orobianco ?????? delpapa chrono ???? ?????? ??? ???? ???-or00203?-p-254.html

#1314 By Orobianco ???????Orobianco ?????? DELPAPA CHRONO ???? ?????? ??? ???? ??? OR-0020-3? (208.177.76.9) on 2013-10-22 20:21

Whoa! This blog looks just like my old one! It's on a completely different subject but it has pretty much the same layout and design. Excellent choice of colors!|
????????????? ??? http://www.accessmyschedule.com/

#1313 By ????????????? ??? (208.177.76.9) on 2013-10-22 19:14

Great {internet site|website|internet site}! It looks extremely expert! Keep up the excellent job!|
?????? OROBIANCO ??????? ??????? ?????? ??? ??? 2013??? RUFUS 11-D MOUCH//RUFUS-11-D-MO http://www.yorkieroom.com/??????-orobianco-???????-???????-??????-???-???-2013???-rufus-11d-mouchrufus11dmo-p-17.html
You're a very valuable internet site; could not make it without ya!|
????????????? ?????? http://www.accessmyschedule.com/

#1311 By ????????????? ?????? (208.177.76.9) on 2013-10-22 16:48

hello there and thank you for your information I've certainly picked up something new from right here. I did however expertise some technical issues using this web site, since I experienced to reload the web site lots of times previous to I could get it to load correctly. I had been wondering if your web host is OK? Not that I am complaining, but sluggish loading instances times will very frequently affect your placement in google and could damage your quality score if ads and marketing with Adwords. Well I am adding this RSS to my email and could look out for much more of your respective fascinating content. Ensure that you update this again very soon.|
?UGG?????UGG ???- ?? -WOMENS CLASSIC SHORT(????? ????????? ???????)?? http://www.vivendadelmar.com/?ugg?????ugg-???-??-womens-classic-short(?????-?????????-???????)??-p-8.html
Many thanks a whole lot for sharing!

#1309 By sarenza (219.136.101.245) on 2013-10-20 03:13

Hey! Do you use Twitter? I'd like to follow you if that would be okay. I'm absolutely enjoying your blog and look forward to new updates.
??? ??? http://www.papillonwatch.com/casio-popo

#1308 By ??? ??? (62.210.202.235) on 2013-10-18 14:57

Hello there! I could have sworn I've been to this site before but after browsing through some of the post I realized it's new to me. Nonetheless, I'm definitely happy I found it and I'll be book-marking and checking back frequently!
????? ??? http://www.envia-business.net/

#1307 By ????? ??? (62.210.202.235) on 2013-10-16 20:45

Thanks for ones marvelous posting! I certainly enjoyed reading it, you could be a great author.I will make sure to bookmark your blog and will come back very soon. I want to encourage yourself to continue your great writing, have a nice evening!
????? ?? http://watches.flashead.com/?????-?????emporio-armani-??-watches-24.html

#1306 By ????? ?? (62.210.202.241) on 2013-10-10 08:57

???????????????? | ENZYME knowledge prada outlet http://www.petegeraghty.com/uk/prada/ wyytxjp

#1305 By prada outlet (110.85.75.103) on 2013-08-31 03:49

lgkkaxry %anchor% ???????????????? | ENZYME knowledge

#1304 By prada handbags uk (110.85.73.10) on 2013-08-24 03:39

Du saxophone, des voix bulgares, des fanfares faire plir tout orchestre de mariages des Balkans qui se respecte, mais aussi un savant mlange de paternes rythmiques troubles des musiques latines. Le nouvel album de Balkan Conquer Box, aprs deux premiers albums remarqus Balkan Conquer Box en 2005 et Nu Med en 2007, pousse encore as well as loin les limites d exploration musicale dj assez djante.

#1303 By michael kors crossbody bags (222.77.204.255) on 2013-08-22 15:36

forum-thread-view?r=

#1302 By maillot de bain maroc (14.147.205.43) on 2013-08-22 04:18

tools.php?event=profile&pname=

#1301 By maillot river plate 2013 (14.150.72.155) on 2013-08-16 13:25

One additional method for advertising your blog is posting comments on different directories with your weblog link. ??? ?? http://www.sweetteadesign.com/node/41773

#1300 By ??? ?? (208.177.76.15) on 2013-08-13 17:43

Really film is the presentation of some ones feelings; it offers the lesson to the users. ??? ?? http://ourjewishfamilylegacy.com/content/additional-user-info-2133

#1299 By ??? ?? (208.177.76.15) on 2013-08-13 12:33

What a lovely story! The story in this YouTube video that is posted here is genuinely a good one with having nice picture feature. SEIKO ??? http://sedice.com/portada/index.php?q=node/146341

#1298 By SEIKO ??? (208.177.76.15) on 2013-08-10 05:08

I all the time used to read post in news papers but now as I am a user of net therefore from now I am using net for content, thanks to web. ??? ?????? http://www.iitkalumniassociationouterdelhi.in/node/127405

#1297 By ??? ?????? (208.177.76.15) on 2013-08-10 02:10

http://ugt9873.lo.gs/-a94364983 http://ugt9873.lo.gs/-a94364989 http://ugt9873.lo.gs/-a94365007

#1296 By gSqTZffWMTNQsDv (94.23.58.172) on 2013-08-05 03:20